CN114031342B - Colored gravel concrete composition with strong weather resistance and preparation method thereof - Google Patents
Colored gravel concrete composition with strong weather resistance and preparation method thereof Download PDFInfo
- Publication number
- CN114031342B CN114031342B CN202110425979.7A CN202110425979A CN114031342B CN 114031342 B CN114031342 B CN 114031342B CN 202110425979 A CN202110425979 A CN 202110425979A CN 114031342 B CN114031342 B CN 114031342B
- Authority
- CN
- China
- Prior art keywords
- parts
- weight
- gravel
- emulsion
- concrete composition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 68
- 239000004567 concrete Substances 0.000 title claims abstract description 64
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 229920002689 polyvinyl acetate Polymers 0.000 claims abstract description 31
- 239000011118 polyvinyl acetate Substances 0.000 claims abstract description 31
- 239000002893 slag Substances 0.000 claims abstract description 20
- 229920005989 resin Polymers 0.000 claims abstract description 16
- 239000011347 resin Substances 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 15
- 239000010954 inorganic particle Substances 0.000 claims abstract description 14
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 239000013049 sediment Substances 0.000 claims abstract description 9
- 239000000839 emulsion Substances 0.000 claims description 57
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 57
- 239000003999 initiator Substances 0.000 claims description 27
- 238000003756 stirring Methods 0.000 claims description 23
- 239000003638 chemical reducing agent Substances 0.000 claims description 22
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 21
- 239000002245 particle Substances 0.000 claims description 21
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical group CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 20
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims description 19
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 18
- 239000003822 epoxy resin Substances 0.000 claims description 17
- 229920000647 polyepoxide Polymers 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 claims description 16
- 239000000049 pigment Substances 0.000 claims description 16
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 13
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 13
- 239000004593 Epoxy Substances 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 11
- 239000011398 Portland cement Substances 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 10
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 9
- 239000003995 emulsifying agent Substances 0.000 claims description 9
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- DXPPIEDUBFUSEZ-UHFFFAOYSA-N 6-methylheptyl prop-2-enoate Chemical compound CC(C)CCCCCOC(=O)C=C DXPPIEDUBFUSEZ-UHFFFAOYSA-N 0.000 claims description 7
- -1 lithopone Chemical compound 0.000 claims description 7
- 235000012239 silicon dioxide Nutrition 0.000 claims description 7
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 claims description 6
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 claims description 6
- 229910000423 chromium oxide Inorganic materials 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 6
- 239000005543 nano-size silicon particle Substances 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 5
- 229920000877 Melamine resin Polymers 0.000 claims description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-M acrylate group Chemical group C(C=C)(=O)[O-] NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 4
- 239000006229 carbon black Substances 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 229920001732 Lignosulfonate Polymers 0.000 claims description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052793 cadmium Inorganic materials 0.000 claims description 3
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 claims description 3
- CJOBVZJTOIVNNF-UHFFFAOYSA-N cadmium sulfide Chemical compound [Cd]=S CJOBVZJTOIVNNF-UHFFFAOYSA-N 0.000 claims description 3
- 239000005018 casein Substances 0.000 claims description 3
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 claims description 3
- 235000021240 caseins Nutrition 0.000 claims description 3
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 3
- 239000000194 fatty acid Substances 0.000 claims description 3
- 229930195729 fatty acid Natural products 0.000 claims description 3
- 150000004665 fatty acids Chemical class 0.000 claims description 3
- PSZYNBSKGUBXEH-UHFFFAOYSA-M naphthalene-1-sulfonate Chemical compound C1=CC=C2C(S(=O)(=O)[O-])=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-M 0.000 claims description 3
- 229920005646 polycarboxylate Polymers 0.000 claims description 3
- IIACRCGMVDHOTQ-UHFFFAOYSA-M sulfamate Chemical compound NS([O-])(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-M 0.000 claims description 3
- 235000010215 titanium dioxide Nutrition 0.000 claims description 3
- 238000004090 dissolution Methods 0.000 claims description 2
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 2
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims 4
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000005336 cracking Methods 0.000 abstract description 5
- 230000002688 persistence Effects 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 28
- 239000004568 cement Substances 0.000 description 20
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 11
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 239000000377 silicon dioxide Substances 0.000 description 6
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 5
- 238000013329 compounding Methods 0.000 description 5
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 5
- 229920000178 Acrylic resin Polymers 0.000 description 4
- 239000004925 Acrylic resin Substances 0.000 description 4
- 239000004841 bisphenol A epoxy resin Substances 0.000 description 4
- 229920001577 copolymer Polymers 0.000 description 4
- 238000005034 decoration Methods 0.000 description 4
- 239000005011 phenolic resin Substances 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 238000001556 precipitation Methods 0.000 description 4
- 229920005552 sodium lignosulfonate Polymers 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- 239000004640 Melamine resin Substances 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 229920001807 Urea-formaldehyde Polymers 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- YDEXUEFDPVHGHE-GGMCWBHBSA-L disodium;(2r)-3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Na+].[Na+].COC1=CC=CC(C[C@H](CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O YDEXUEFDPVHGHE-GGMCWBHBSA-L 0.000 description 2
- 238000005562 fading Methods 0.000 description 2
- 239000010433 feldspar Substances 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000010445 mica Substances 0.000 description 2
- 229910052618 mica group Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 235000010755 mineral Nutrition 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- DAJSVUQLFFJUSX-UHFFFAOYSA-M sodium;dodecane-1-sulfonate Chemical compound [Na+].CCCCCCCCCCCCS([O-])(=O)=O DAJSVUQLFFJUSX-UHFFFAOYSA-M 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 229920006305 unsaturated polyester Polymers 0.000 description 2
- 229920006337 unsaturated polyester resin Polymers 0.000 description 2
- WPJGWJITSIEFRP-UHFFFAOYSA-N 1,3,5-triazine-2,4,6-triamine;hydrate Chemical compound O.NC1=NC(N)=NC(N)=N1 WPJGWJITSIEFRP-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 229920001780 ECTFE Polymers 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 208000032400 Retinal pigmentation Diseases 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 125000002723 alicyclic group Chemical group 0.000 description 1
- 239000004844 aliphatic epoxy resin Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000004645 aluminates Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 1
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical compound C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000004845 glycidylamine epoxy resin Substances 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012770 industrial material Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229910052901 montmorillonite Inorganic materials 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 229920002493 poly(chlorotrifluoroethylene) Polymers 0.000 description 1
- 239000005023 polychlorotrifluoroethylene (PCTFE) polymer Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920002620 polyvinyl fluoride Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 239000003223 protective agent Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000003469 silicate cement Substances 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/2623—Polyvinylalcohols; Polyvinylacetates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/10—Lime cements or magnesium oxide cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00008—Obtaining or using nanotechnology related materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Civil Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to the field of concrete, in particular to a colored gravel concrete composition with strong weather resistance and a preparation method thereof, wherein the preparation raw materials comprise, by weight, 10-15 parts of modified polyvinyl acetate, 8-13 parts of resin, 40-60 parts of inorganic cementing material, 180-230 parts of crumb-shaped sediment, 10-15 parts of slag and 20-30 parts of inorganic particles. The colored gravel concrete composition has extremely strong weather resistance, can keep stable performance for a long time in outdoor environment, has no bad phenomena of cracking, wrinkling, cracking and the like, has bright color and high saturation, has high color persistence, and is not easy to generate color difference in outdoor environment for a long time.
Description
Technical Field
The invention relates to the field of concrete, in particular to a colored gravel concrete composition with strong weather resistance and a preparation method thereof.
Background
The colored concrete is a concrete which is added with white and colored cement or white cement and colored pigment according to a specific proportion and is compounded with colored aggregate and white or light-colored aggregate, is widely applied to urban construction in recent years, such as gardens, squares, hotels, office buildings, homes, sidewalks, driveways, parking lots, garages, building outer walls, roofs and various public places or old house decoration and transformation projects, has good plasticity and fluidity of the traditional concrete, has a certain decoration function, and can meet the decoration requirements of numerous occasions without secondary coloring.
The colored concrete inherits the good performance of the traditional concrete, however, the added pigment exposes a plurality of problems along with the prolonging of the outdoor service time, the pigment in the colored concrete has the phenomena of precipitation and fading caused by long-term wind, sunshine and rain, in addition, the addition of the pigment inevitably destroys the compatibility of the original concrete raw materials, the problems of cracking and wrinkling caused by large temperature change are caused, the attractiveness and the use are seriously influenced, and therefore, the development of the colored concrete with strong weather resistance and stable color is necessary.
CN110590285A discloses a colored polymer gravel concrete and a preparation method thereof, which solves the problems of large color difference and poor use feeling, neglects the problem of weather resistance and generates cracks after long-term use.
CN201611217181.9 discloses a colored clear water concrete and a preparation method thereof, which improve the weather resistance of colored concrete, and the poor color persistence can cause the problems of pigment precipitation and fading.
Disclosure of Invention
The first aspect of the present invention provides a colored gravel concrete composition with strong weather resistance, which is prepared from the following raw materials, by weight, 10-15 parts of modified polyvinyl acetate, 8-13 parts of resin, 40-60 parts of an inorganic cementitious material, 180-230 parts of crumb-like sediment, 10-15 parts of slag and 20-30 parts of inorganic particles.
In a preferred embodiment, the modified polyvinyl acetate is acrylate-modified polyvinyl acetate.
As a preferred embodiment, the resin is at least one selected from the group consisting of an epoxy resin, an acrylic resin, a phenol resin, a fluorine resin, a urea resin, a melamine resin, and an unsaturated polyester resin.
As a preferred embodiment, the inorganic gelling material is selected from at least one of cement, gypsum, lime.
As a preferred embodiment, the clastic deposit is selected from at least one of gravel, sand, quartz, feldspar, mica.
In a preferred embodiment, the inorganic particles are nano inorganic particles.
As a preferable embodiment, the preparation raw materials further comprise, by weight, 0.5-3 parts of a water reducing agent, 5-10 parts of a pigment and 30-40 parts of water.
In a preferred embodiment, the water reducing agent is at least one selected from the group consisting of lignosulfonate, naphthalene sulfonate, melamine-based water reducing agent, sulfamate-based high-efficiency water reducing agent, fatty acid-based high-efficiency water reducing agent, powdery polycarboxylate, casein and polycarboxylic acid-based high-performance water reducing agent.
In a preferred embodiment, the pigment is at least one selected from the group consisting of iron blue, iron oxide red, chromium oxide green, carbon black, titanium white, chromium oxide yellow, cadmium red, cadmium yellow, lithopone, and iron oxide yellow.
In a second aspect, the present invention provides a method for preparing a colored gravel concrete composition with high weather resistance, comprising the steps of:
1. putting 180-230 parts of crumb-shaped sediment, 10-15 parts of slag, 20-30 parts of inorganic particles and 5-10 parts of pigment into a stirrer, and uniformly stirring to prepare a premix;
2. adding 40-60 parts of inorganic cementing material into the premix, and continuously stirring uniformly to prepare a mixture;
3. and (2) putting 10-15 parts of modified polyvinyl acetate, 8-13 parts of resin, 0.5-3 parts of water reducing agent and 30-40 parts of water into the mixture, and uniformly stirring to obtain the modified polyvinyl acetate.
Compared with the prior art, the invention has the following beneficial effects:
1. the colored gravel concrete composition has extremely strong weather resistance, can keep stable performance for a long time in an outdoor environment, and does not have the bad phenomena of cracking, wrinkling, cracking and the like.
2. The colored gravel concrete composition has the advantages of bright color, high saturation and high color persistence, and is not easy to generate color difference in outdoor environment for a long time.
3. By compounding gravels with different grain diameters and adding reinforcing agents and nano particles with different grain diameters, the colored gravel concrete composition has compact and compact structure, and is not easy to have the bad phenomena of sinking and collapse when being applied to strong stress environments such as ground and the like.
4. The acrylate modified polyvinyl acetate solves the problems of poor performance, ultraviolet ray resistance and high and low temperature resistance of the color concrete adhesive in the prior art, so that the prepared color gravel concrete composition is tightly and firmly crosslinked, water-resistant, high and low temperature resistant, has good stability, and is particularly suitable for outdoor decoration in areas with high illumination intensity and high temperature difference.
Detailed Description
In order to solve the above technical problems, the first aspect of the present invention provides a colored gravel concrete composition with strong weather resistance, which is prepared from, by weight, 10-15 parts of modified polyvinyl acetate, 8-13 parts of resin, 40-60 parts of inorganic cementitious material, 180-230 parts of crumb-like sediment, 10-15 parts of slag and 20-30 parts of inorganic particles.
In a preferred embodiment, the modified polyvinyl acetate is acrylate-modified polyvinyl acetate.
The preparation method of the acrylate modified polyvinyl acetate comprises the following steps:
1. according to the weight portion, evenly mixing 20-120 portions of vinyl acetate monomer, 20-40 portions of butyl acrylate and 13-18 portions of acrylic acid to obtain the seed emulsion.
2. Adding 50-80 parts of water and 0.02-1 part of first emulsifier by weight into a first triangular flask, slowly adding 20-120 parts of vinyl acetate monomer and 0.2-3 parts of butyl acrylate, and uniformly mixing to obtain the outer core pre-emulsion.
3. Adding 50-80 parts of water and 0.02-1 part of a second emulsifier into a second triangular flask, slowly adding 90-110 parts of vinyl acetate monomer, 0.1-4 parts of butyl acrylate and 110-130 parts of isooctyl acrylate, and uniformly mixing to obtain the shell pre-emulsion.
4. Adding 50-80 parts of water and 8-15 parts of polyvinyl alcohol into a third triangular flask, heating and dissolving at 90 ℃, cooling to 60 ℃, adding 0.5-5 parts of a third emulsifier and 1-5 parts of sodium bicarbonate, stirring, adding 20-70 parts of a seed emulsion and 5-10 parts of a first initiator, heating to 75 ℃, adding 10-50 parts of an outer core pre-emulsion and 5-10 parts of a second initiator, stirring, adding 30-80 parts of a shell pre-emulsion and 5-10 parts of a third initiator, standing for 1h, heating to 90 ℃, keeping the temperature for 1h, cooling to 40 ℃, vacuumizing for 1h, and discharging.
Preferably, the weight ratio of the vinyl acetate monomer to the butyl acrylate in the seed emulsion is (2-12): (2-4).
Preferably, the weight percentage of acrylic acid in the seed emulsion is 0.05-0.35wt%.
Preferably, the weight percentage of isooctyl acrylate in the shell pre-emulsion is not less than 0.38wt%.
Preferably, in step 4, the weight ratio of the seed emulsion, the outer core pre-emulsion and the shell pre-emulsion is (2-7): (1-5): (3-8).
Although the vinyl acetate monomer has better adhesive force, the freeze-thaw resistance stability, the flexibility and the water resistance of the vinyl acetate monomer are not good, and the polyvinyl acetate monomer cannot cope with low-temperature environment in concrete.
The applicant finds that when the prepared seed emulsion, the prepared outer core pre-emulsion and the prepared shell pre-emulsion are mixed according to a specific proportion, agglomeration and precipitation phenomena are easy to occur, the applicant thinks that the phenomena are likely to occur because the viscosity of the seed emulsion, the prepared outer core pre-emulsion and the prepared shell pre-emulsion is low due to the fact that water is used as a solvent, the seed emulsion, the prepared outer core pre-emulsion and the prepared shell pre-emulsion cannot be well dispersed in a system, and the problem of precipitation is well solved after polyvinyl alcohol is added as a protective agent, the polyvinyl alcohol is likely to be a high-molecular compound, the viscosity of the solvent can be improved after the polyvinyl alcohol is completely dissolved in water, a stable protective layer can be formed on the surfaces of the seed emulsion, the prepared outer core pre-emulsion and the prepared shell pre-emulsion, and the stability of the solution is improved through a hydration layer and steric hindrance. The polyvinyl alcohol has hydroxyl groups, so that the water resistance of the emulsion is poor, and therefore, the control of the using amount of the polyvinyl alcohol becomes critical, and the applicant finds that when the weight of the polyvinyl alcohol is 8-15 parts, the aim of protecting molecules from sedimentation can be achieved, and the maximum affinity to water can be maintained.
Preferably, the first emulsifier, the second emulsifier and the third emulsifier are sodium dodecyl sulfate.
Preferably, the first initiator, the second initiator and the third initiator are all potassium persulfate and sodium bisulfite in a weight ratio of 1: (7-9) compounding.
The applicant finds that potassium persulfate and sodium bisulfite are compounded in a specific proportion, so that the tail end of a molecular chain of the generated polymer is provided with sulfate radicals and sulfonate radicals with good hydrophilicity, the polymer can be endowed with certain self-emulsifying property, and the polymer is further endowed with good compatibility and stability.
As a preferred embodiment, the resin is at least one selected from the group consisting of an epoxy resin, an acrylic resin, a phenol resin, a fluorine resin, a urea resin, a melamine resin, and an unsaturated polyester resin.
Preferably, the resin is selected from at least one of bisphenol a epoxy resin, glycidyl ether epoxy resin, glycidyl ester epoxy resin, glycidyl amine epoxy resin, linear aliphatic epoxy resin, alicyclic epoxy resin, thermoplastic acrylic resin, thermosetting acrylic resin, hydroxyacrylic resin, thermoplastic phenol resin, thermosetting phenol resin, polytetrafluoroethylene, polychlorotrifluoroethylene, polyvinylidene fluoride, polyvinyl fluoride, tetrafluoroethylene-hexafluoropropylene copolymer, ethylene-chlorotrifluoroethylene copolymer, ethylene-tetrafluoroethylene copolymer, tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer, tetrafluoroethylene-hexafluoroethylene-vinylidene fluoride copolymer, tetrafluoroethylene-hexafluoropropylene-trifluoroethylene copolymer, bisphenol a unsaturated polyester, and halogenated unsaturated polyester.
Preferably, the resin is selected from bisphenol a type epoxy resins.
Preferably, the epoxy value of the bisphenol A epoxy resin is not less than 0.4eq/100g (the epoxy value is the amount of epoxy groups contained in 100g of the epoxy resin).
The epoxy value is an important performance parameter of the epoxy resin, when the epoxy resin is used as an adhesive, the epoxy resin with a lower epoxy value can achieve a good bonding effect and is beneficial to stripping, when the epoxy value is too low, the prepared raw materials cannot be well adhered together, and phenomena of loosening, material falling, poor mechanical strength, raw material precipitation and the like are easy to occur, so that the applicant selects the epoxy value of not less than 0.4eq/100g to endow the prepared concrete composition with good mechanical strength and use quality.
As a preferred embodiment, the inorganic cementing material is selected from at least one of cement, gypsum and lime.
Preferably, the inorganic gelling material is selected from cement.
Preferably, the cement is selected from the group consisting of portland cement, aluminate cement, sulphoaluminate cement, ferro-aluminate cement, fluoroaluminate cement, phosphate cement.
Preferably, the cement is selected from portland cements.
Preferably, the strength grade of the portland cement is not less than 52.5 (the strength grade value of the cement is the value of 28d compressive strength (MPa) of a cement standard test block).
The strength of the cement is an important index for evaluating the quality of the cement, and is a basis for dividing the strength grade of the cement, the strength is continuously increased in the forming process of the cement and finally forms a fixed value, and the portland cement has the characteristics of high hardness improvement and early strength formation compared with other cements.
As a preferred embodiment, the clastic deposit is selected from at least one of gravel, sand, quartz, feldspar, mica.
Preferably, the clastic sediment is selected from gravel.
Preferably, the gravel is a mixture of fine gravel and coarse gravel.
Preferably, the particle size of the fine gravel is 3-10mm, and the particle size of the coarse gravel is 11-99mm.
Preferably, the weight ratio of the fine gravel to the coarse gravel is (7-10): 3.
when the gravels in the composition are all fine gravels, agglomeration and caking are easy to occur in the stirring process, so that the finished product has poor quality and even cannot be used, and when the gravels are all coarse gravels, a plurality of cavities are easy to form among the coarse gravels due to overlarge particle size, and the concrete composition can be locally sunken after being used for a period of time outdoors, so that the problems of water accumulation, water seepage and the like are caused. The applicant found that when the weight ratio of the fine gravel to the coarse gravel is (7-10): 3, this problem can be solved well because the fine gravels having a specific particle size can fill the cavities between the coarse gravels, thereby reducing the occurrence of collapse in use and effectively reducing the penetration of rainwater.
As a preferred embodiment, the slag is an alkaline slag having a M value greater than 1 (M value is the ratio of alkaline oxide to acidic oxide in the slag).
In a preferred embodiment, the inorganic particles are nano inorganic particles.
Preferably, the nano inorganic particles are at least one selected from nano silicon dioxide, nano titanium carbide, nano carbonate, nano zinc oxide, nano silicon nitride, nano barium sulfate, nano montmorillonite and nano glass fiber.
Preferably, the nano inorganic particles are selected from nano silica.
Preferably, the particle size of the nano silicon dioxide is 15-25nm.
The applicant relieves the problem of cavities in the concrete composition by adding the thick and thin gravels with specific proportion and particle size, but in actual use, the raw materials in the concrete composition slightly expand along with the increase of temperature, and then shrink along with the decrease of temperature, so that the thick gravels and the thin gravels are displaced and the cavities are generated again.
As a preferable embodiment, the preparation raw materials further comprise 0.5-3 parts of a water reducing agent, 5-10 parts of a pigment and 30-40 parts of water by weight.
The invention does not specially limit the water reducing agent, and all the water reducing agents can disperse cement particles, improve the workability of the water reducing agent, reduce the unit water consumption and improve the fluidity of concrete mixtures; the water reducing agent can be at least one selected from lignosulfonate, naphthalene sulfonate, melamine water reducing agent, sulfamate high-efficiency water reducing agent, fatty acid high-efficiency water reducing agent, powdery polycarboxylate, casein and polycarboxylic acid high-performance water reducing agent.
The invention does not specially limit the pigment, and all the pigments which can provide color-enhancing pigment for the gravel concrete composition can be used; the pigment may be at least one selected from iron blue, iron oxide red, chromium oxide green, carbon black, titanium white, chromium oxide yellow, cadmium red, cadmium yellow, lithopone, and iron oxide yellow.
In a second aspect, the present invention provides a method for preparing a colored gravel concrete composition with high weather resistance, comprising the steps of:
1. putting 180-230 parts of crumb-shaped sediment, 10-15 parts of slag, 20-30 parts of inorganic particles and 5-10 parts of pigment into a stirrer, and uniformly stirring to prepare premix;
2. adding 40-60 parts of inorganic cementing material into the premix, and continuously stirring uniformly to prepare a mixture;
3. and (2) putting 10-15 parts of modified polyvinyl acetate, 8-13 parts of resin, 0.5-3 parts of water reducing agent and 30-40 parts of water into the mixture, and uniformly stirring to obtain the modified polyvinyl acetate.
The present invention will be specifically described below by way of examples. It should be noted that the following examples are only for illustrating the present invention and should not be construed as limiting the scope of the present invention, and that the insubstantial modifications and adaptations of the present invention by those skilled in the art based on the above disclosure are still within the scope of the present invention.
Vinyl acetate monomer purchased from Togaku chemical industry and development Co., ltd
Butyl acrylate CAS # 141-32-2
Acrylic acid CAS #:79-10-7
2386-53-0 CAS # of sodium dodecyl sulfate
Isooctyl acrylate CAS # 103-11-7
Polyvinyl alcohol purchased from Taishiai (Shanghai) chemical industry development Co., ltd
CAS # 7727-21-1 potassium persulfate
Bisphenol A epoxy resin was purchased from Monni environmental protection science Hebei Ltd
Portland cement is purchased from Chengming building materials Co., ltd, jinhua City
Fine gravel bought from Yongshui mineral processing plant in Lingshou county
Coarse gravel purchase from Yongshun mineral processing plant in Lingshou county
The acid slag and the alkaline slag are purchased from Tangshan Industrial and building materials Co., ltd
Nano silicon dioxide purchased from Hangzhou Wanjing New Material Co Ltd
Sodium lignosulfonate CAS # 8061-51-6
Iron oxide Red was purchased from WULIAN county Licai Industrial trade Co Ltd
Polyvinyl acetate was purchased from Wanhong New Material Co., ltd, changzhou city
In addition, the starting materials used are all commercially available, unless otherwise specified.
Examples
Example 1
Example 1 in a first aspect, there is provided a colored gravel concrete composition with high weather resistance, which is prepared from, by weight, 10 parts of modified polyvinyl acetate, 8 parts of bisphenol a type epoxy resin (epoxy value of 0.6eq/100 g), 40 parts of portland cement (strength grade of 52.5), 180 parts of gravel, 10 parts of alkaline slag, 20 parts of nano-silica (particle size of 15 nm), 0.5 part of sodium lignosulfonate, 5 parts of iron oxide red, and 30 parts of water.
The preparation method of the modified polyvinyl acetate comprises the following steps:
1. according to the weight portion, evenly mixing 20 portions of vinyl acetate monomer, 30 portions of butyl acrylate and 13 portions of acrylic acid to obtain the seed emulsion.
2. According to the weight parts, 50 parts of water and 0.02 part of sodium dodecyl sulfate are added into a first triangular flask, 20 parts of vinyl acetate monomer and 0.2 part of butyl acrylate are slowly added, and the mixture is uniformly mixed to obtain the external core pre-emulsion.
3. Adding 50 parts of water and 0.02 part of sodium dodecyl sulfate into a second triangular flask, slowly adding 90 parts of vinyl acetate monomer, 0.1 part of butyl acrylate and 110 parts of isooctyl acrylate, and uniformly mixing to obtain the shell pre-emulsion.
4. Adding 50 parts by weight of water and 8 parts by weight of polyvinyl alcohol into a third triangular flask, heating to 90 ℃ for dissolving, cooling to 60 ℃, adding 0.5 part by weight of sodium dodecyl sulfate and 1 part by weight of sodium bicarbonate, stirring, adding 20 parts by weight of seed emulsion and 5 parts by weight of first initiator, heating to 75 ℃, adding 10 parts by weight of outer core pre-emulsion and 5 parts by weight of second initiator, stirring, adding 30 parts by weight of shell pre-emulsion and 5 parts by weight of third initiator, standing for 1 hour, heating to 90 ℃, and keeping warm for 1 hour. Cooling to 40 ℃, vacuumizing for 1h, and discharging.
The first initiator, the second initiator and the third initiator are respectively potassium persulfate and sodium bisulfite in a weight ratio of 1:7, compounding.
The gravel is a mixture of fine gravel and coarse gravel, the particle size of the fine gravel is 3mm, and the particle size of the coarse gravel is 11mm; the weight ratio of the fine gravel to the coarse gravel is 7:3.
example 1 in a second aspect there is provided a strong weatherable colored gravel concrete composition comprising the steps of:
1. putting the gravel, the alkaline slag, the nano-silica and the iron oxide red into a stirrer, and uniformly stirring to prepare a premix;
2. adding the silicate cement into the premix, and continuously stirring uniformly to prepare a mixture;
3. and adding the modified polyvinyl acetate, the bisphenol A epoxy resin, the sodium lignin sulfonate and the water into the mixture, and uniformly stirring to obtain the modified polyvinyl acetate.
Example 2
Example 2 in a first aspect, there is provided a colored gravel concrete composition having high weather resistance, which is prepared from, by weight, 15 parts of modified polyvinyl acetate, 13 parts of bisphenol a type epoxy resin (epoxy value of 0.9eq/100 g), 60 parts of portland cement (strength grade of 52.5), 230 parts of gravel, 15 parts of alkaline slag, 30 parts of nano-silica (particle size of 25 nm), 3 parts of sodium lignosulfonate, 10 parts of iron blue, and 40 parts of water.
The preparation method of the modified polyvinyl acetate comprises the following steps:
1. according to the weight portion, evenly mixing 110 portions of vinyl acetate monomer, 40 portions of butyl acrylate and 18 portions of acrylic acid to obtain the seed emulsion.
2. According to the weight parts, 80 parts of water and 1 part of sodium dodecyl sulfate are added into a first triangular flask, 120 parts of vinyl acetate monomer and 3 parts of butyl acrylate are slowly added, and the mixture is uniformly mixed to obtain the external core pre-emulsion.
3. According to the weight parts, 80 parts of water and 1 part of sodium dodecyl sulfate are added into a second triangular flask, 110 parts of vinyl acetate monomer, 4 parts of butyl acrylate and 130 parts of isooctyl acrylate are slowly added, and the mixture is uniformly mixed to obtain the shell pre-emulsion.
4. Adding 80 parts by weight of water and 15 parts by weight of polyvinyl alcohol into a third triangular flask, heating to 90 ℃ for dissolution, cooling to 60 ℃, adding 5 parts by weight of sodium dodecyl sulfate and 5 parts by weight of sodium bicarbonate, stirring, adding 70 parts by weight of seed emulsion and 10 parts by weight of first initiator, heating to 75 ℃, adding 50 parts by weight of outer core pre-emulsion and 10 parts by weight of second initiator, stirring, adding 80 parts by weight of shell pre-emulsion and 10 parts by weight of third initiator, standing for 1h, heating to 90 ℃, and keeping warm for 1h. Cooling to 40 ℃, vacuumizing for 1h, and discharging.
The first initiator, the second initiator and the third initiator are respectively potassium persulfate and sodium bisulfite in a weight ratio of 1:9 and (4) compounding.
The gravel is a mixture of fine gravel and coarse gravel, the particle size of the fine gravel is 10mm, and the particle size of the coarse gravel is 99mm; the weight ratio of the fine gravel to the coarse gravel is 10:3.
example 2 in a second aspect, a colored gravel concrete composition having enhanced weatherability is provided, as in example 1.
Example 3
Example 3 in a first aspect, there is provided a colored gravel concrete composition with high weather resistance, which is prepared from, by weight, 13 parts of modified polyvinyl acetate, 10 parts of bisphenol a type epoxy resin (epoxy value of 0.7eq/100 g), 50 parts of portland cement (strength grade of 52.5), 200 parts of gravel, 13 parts of alkaline slag, 25 parts of nano-silica (particle size of 20 nm), 2 parts of sodium lignosulfonate, 7 parts of carbon black and 35 parts of water.
The preparation method of the modified polyvinyl acetate comprises the following steps:
1. according to the weight portion, 80 portions of vinyl acetate monomer, 30 portions of butyl acrylate and 15 portions of acrylic acid are evenly mixed to obtain the seed emulsion.
2. According to the weight parts, 60 parts of water and 0.5 part of sodium dodecyl sulfate are added into a first triangular flask, 80 parts of vinyl acetate monomer and 1.5 parts of butyl acrylate are slowly added, and the materials are uniformly mixed to obtain the external core pre-emulsion.
3. Adding 70 parts of water and 0.5 part of sodium dodecyl sulfate into a second triangular flask, slowly adding 100 parts of vinyl acetate monomer, 2 parts of butyl acrylate and 120 parts of isooctyl acrylate, and uniformly mixing to obtain the shell pre-emulsion.
4. Adding 70 parts of water and 12 parts of polyvinyl alcohol into a third triangular flask, heating and dissolving at 90 ℃, cooling to 60 ℃, adding 4 parts of sodium dodecyl sulfate and 3 parts of sodium bicarbonate, stirring, adding 50 parts of seed emulsion and 7 parts of first initiator, heating to 75 ℃, adding 30 parts of outer core pre-emulsion and 7 parts of second initiator, stirring, adding 60 parts of shell pre-emulsion and 7 parts of third initiator, standing for 1h, heating to 90 ℃, and keeping the temperature for 1h. Cooling to 40 ℃, vacuumizing for 1h, and discharging.
The first initiator, the second initiator and the third initiator are respectively potassium persulfate and sodium bisulfite in a weight ratio of 1:8, compounding.
The gravel is a mixture of fine gravel and coarse gravel, the particle size of the fine gravel is 7mm, and the particle size of the coarse gravel is 50mm; the weight ratio of the fine gravel to the coarse gravel is 8:3.
example 3 in a second aspect, a colored gravel concrete composition having enhanced weatherability is provided, as in example 1.
Comparative example 1
Comparative example 1 in a first aspect, a colored gravel concrete composition having high weather resistance is prepared in the same manner as in example 3 except that polyvinyl acetate is used instead of modified polyvinyl acetate.
Comparative example 1 in a second aspect, a colored gravel concrete composition having high weather resistance is provided, as in example 1.
Comparative example 2
Comparative example 2 the first aspect provides a strong weather-resistant colored gravel concrete composition, which is prepared in the same manner as in example 3, except that the seed emulsion is prepared by: according to the weight portion, 80 portions of vinyl acetate monomer, 50 portions of butyl acrylate and 15 portions of acrylic acid are evenly mixed to obtain the seed emulsion.
Comparative example 2 in a second aspect, a colored gravel concrete composition having high weather resistance is provided, as in example 1.
Comparative example 3
Comparative example 3 the first aspect provides a colored gravel concrete composition with strong weather resistance, which is prepared in the same manner as in example 3, except that 70 parts by weight of water and 12 parts by weight of polyvinyl alcohol are added to a third flask, dissolved by heating at 90 ℃, cooled to 60 ℃, added with 4 parts by weight of sodium dodecyl sulfonate and 3 parts by weight of sodium bicarbonate, stirred, added with 50 parts by weight of seed emulsion and 7 parts by weight of potassium persulfate, heated to 75 ℃, added with 50 parts by weight of outer core pre-emulsion and 7 parts by weight of potassium persulfate, stirred, added with 50 parts by weight of shell pre-emulsion and 7 parts by weight of potassium persulfate, left to stand for 1 hour, heated to 90 ℃ and kept warm for 1 hour. Cooling to 40 ℃, vacuumizing for 1h, and discharging.
Comparative example 3 in a second aspect, a colored gravel concrete composition having high weather resistance is provided, as in example 1.
Comparative example 4
Comparative example 4 the first aspect provides a colored gravel concrete composition having high weather resistance, which is carried out in the same manner as in example 3 except that the epoxy value of the bisphenol a type epoxy resin is 0.25eq/100g.
Comparative example 4 in a second aspect, a colored gravel concrete composition having high weather resistance was prepared in the same manner as in example 1
Comparative example 5
Comparative example 5 the first aspect provides a colored gravel concrete composition with high weather resistance, which is embodied in the same manner as in example 3 except that the nano-silica has a particle size of 5nm.
Comparative example 5 in a second aspect, a colored gravel concrete composition having high weather resistance was prepared in the same manner as in example 1
Comparative example 6
Comparative example 6 the first aspect provides a colored gravel concrete composition with high weather resistance, which is carried out in the same manner as in example 3, except that the gravel is fine gravel having a particle size of 10mm.
Comparative example 6 in a second aspect, a colored gravel concrete composition having high weather resistance is provided by the same method as in example 1.
Comparative example 7
Comparative example 7 the first aspect provides a strong weather-resistant colored gravel concrete composition, which is carried out in the same manner as in example 3, except that the weight ratio of the fine gravel to the coarse gravel is 1:3.
comparative example 7 in a second aspect, a colored gravel concrete composition having high weather resistance is provided by the same method as in example 1.
Comparative example 8
Comparative example 8 the first aspect provides a colored gravel concrete composition with high weather resistance, which is embodied in the same manner as in example 3 except that acid slag is used instead of alkali slag.
Comparative example 8 in a second aspect, a colored gravel concrete composition having high weather resistance is provided by the same method as in example 1.
Comparative example 9
Comparative example 9 in a first aspect, a high weatherability colored gravel concrete composition is provided and is embodied in the same manner as in example 3 except that the strength grade of the portland cement is 42.5.
Comparative example 9 in a second aspect, a colored gravel concrete composition having high weather resistance is provided in the same manner as in example 1.
Performance test
The above examples and comparative examples were subjected to performance tests, and the results are shown in the following table.
Standard for 500 day colour difference test: the prepared strong weather-resistant colored gravel concrete composition was placed in an outdoor environment for 500 days, and the weight ratio of the composition was measured before and after the placement with the same camera in the morning of 9:00 photograph record color.
Weather resistance test standard: the prepared colored gravel concrete composition with strong weather resistance is placed in an outdoor environment for 500 days, and the surface change condition of the composition is recorded after 500 days.
And (4) testing the compressive strength: GB/T50107-2010
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may modify or change the technical content of the above disclosure into equivalent embodiments with equivalent changes, but all those simple modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the present invention.
Claims (4)
1. The colored gravel concrete composition with strong weather resistance is characterized by comprising, by weight, 10-15 parts of modified polyvinyl acetate, 8-13 parts of resin, 40-60 parts of inorganic cementing material, 180-230 parts of crumb-shaped sediment, 10-15 parts of slag and 20-30 parts of inorganic particles; the preparation raw materials also comprise 0.5-3 parts of water reducing agent, 5-10 parts of pigment and 30-40 parts of water; the modified polyvinyl acetate is acrylate modified polyvinyl acetate; the resin is epoxy resin, the resin is bisphenol A type epoxy resin, and the epoxy value of the bisphenol A type epoxy resin is not less than 0.4eq/100g; the inorganic cementing material is Portland cement, and the strength grade of the inorganic cementing material is not less than 52.5; the detritus-shaped sediment is a mixture of fine gravel and coarse gravel, and the weight ratio of the fine gravel to the coarse gravel is (7-10): 3, the particle size of the fine gravel is 3-10mm, and the particle size of the coarse gravel is 11-99mm; the inorganic particles are nano silicon dioxide, and the particle size of the nano silicon dioxide is 15-25nm; the slag is alkaline slag with M value more than 1;
the preparation method of the acrylate modified polyvinyl acetate comprises the following steps:
(1) Uniformly mixing 20-120 parts of vinyl acetate monomer, 20-40 parts of butyl acrylate and 13-18 parts of acrylic acid in parts by weight to obtain seed emulsion;
(2) Adding 50-80 parts of water and 0.02-1 part of first emulsifier by weight into a first triangular flask, slowly adding 20-120 parts of vinyl acetate monomer and 0.2-3 parts of butyl acrylate, and uniformly mixing to obtain an outer core pre-emulsion;
(3) Adding 50-80 parts of water and 0.02-1 part of a second emulsifier by weight into a second triangular flask, slowly adding 90-110 parts of vinyl acetate monomer, 0.1-4 parts of butyl acrylate and 110-130 parts of isooctyl acrylate, and uniformly mixing to obtain a shell pre-emulsion;
(4) Adding 50-80 parts by weight of water and 8-15 parts by weight of polyvinyl alcohol into a third triangular flask, heating to 90 ℃ for dissolution, cooling to 60 ℃, adding 0.5-5 parts by weight of a third emulsifier and 1-5 parts by weight of sodium bicarbonate, stirring, adding 20-70 parts by weight of seed emulsion and 5-10 parts by weight of a first initiator, heating to 75 ℃, adding 10-50 parts by weight of an outer core pre-emulsion and 5-10 parts by weight of a second initiator, stirring, adding 30-80 parts by weight of a shell pre-emulsion and 5-10 parts by weight of a third initiator, standing for 1h, heating to 90 ℃, keeping the temperature for 1h, cooling to 40 ℃, vacuumizing for 1h, and discharging;
the weight ratio of the seed emulsion to the outer core pre-emulsion to the shell pre-emulsion is (2-7): (1-5): (3-8).
2. A highly weatherable colored gravel concrete composition according to claim 1, wherein the water reducing agent is at least one selected from the group consisting of lignosulfonate, naphthalenesulfonate, melamine-based water reducing agents, sulfamate-based superplasticizers, fatty acid-based superplasticizers, powdery polycarboxylates, casein, and polycarboxylic acid-based high performance water reducing agents.
3. A strong weatherable colored gravel concrete composition according to claim 1, wherein the pigment is selected from at least one of iron blue, iron oxide red, chromium oxide green, carbon black, titanium white, chromium oxide yellow, cadmium red, cadmium yellow, lithopone, and iron oxide yellow.
4. A method of making a highly weatherable colored gravel concrete composition of claim 1 comprising the steps of:
1. putting 180-230 parts of crumb-shaped sediment, 10-15 parts of slag, 20-30 parts of inorganic particles and 5-10 parts of pigment into a stirrer, and uniformly stirring to prepare premix;
2. adding 40-60 parts of inorganic cementing material into the premix, and continuously stirring uniformly to prepare a mixture;
3. and (2) putting 10-15 parts of modified polyvinyl acetate, 8-13 parts of resin, 0.5-3 parts of water reducing agent and 30-40 parts of water into the mixture, and uniformly stirring to obtain the modified polyvinyl acetate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110425979.7A CN114031342B (en) | 2021-04-20 | 2021-04-20 | Colored gravel concrete composition with strong weather resistance and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110425979.7A CN114031342B (en) | 2021-04-20 | 2021-04-20 | Colored gravel concrete composition with strong weather resistance and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114031342A CN114031342A (en) | 2022-02-11 |
| CN114031342B true CN114031342B (en) | 2023-04-07 |
Family
ID=80134168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110425979.7A Active CN114031342B (en) | 2021-04-20 | 2021-04-20 | Colored gravel concrete composition with strong weather resistance and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114031342B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118206342B (en) * | 2024-03-25 | 2024-12-20 | 中铁建设集团成都建筑工程有限公司 | Colored concrete and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6537366B1 (en) * | 2000-12-26 | 2003-03-25 | Color & Chemical Technologies, Inc. | Concrete admixture with improved durability and efflorescence control containing a highly resilient colorant |
| CN110451883A (en) * | 2019-08-21 | 2019-11-15 | 国网电力科学研究院武汉南瑞有限责任公司 | A kind of concrete surface composite anticorrosion coating and preparation method thereof |
| CN110590285A (en) * | 2019-09-29 | 2019-12-20 | 上海柏芝混凝土搅拌有限公司 | Colored polymer gravel concrete and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107500671B (en) * | 2017-09-26 | 2020-03-17 | 济南大学 | Colored permeable concrete pavement brick and preparation method thereof |
| CN110950612B (en) * | 2019-12-25 | 2021-07-16 | 成都新豪鼎盛建材有限公司 | Colored pervious concrete and preparation process thereof |
-
2021
- 2021-04-20 CN CN202110425979.7A patent/CN114031342B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6537366B1 (en) * | 2000-12-26 | 2003-03-25 | Color & Chemical Technologies, Inc. | Concrete admixture with improved durability and efflorescence control containing a highly resilient colorant |
| CN110451883A (en) * | 2019-08-21 | 2019-11-15 | 国网电力科学研究院武汉南瑞有限责任公司 | A kind of concrete surface composite anticorrosion coating and preparation method thereof |
| CN110590285A (en) * | 2019-09-29 | 2019-12-20 | 上海柏芝混凝土搅拌有限公司 | Colored polymer gravel concrete and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114031342A (en) | 2022-02-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111439967B (en) | Saltpetering-resistant high-strength inorganic artificial stone material and preparation process for decorative plate by using same | |
| CN104478352B (en) | Colored concrete and preparation method thereof | |
| CN100558671C (en) | A kind of high-brightness white high-weather-resistance white concrete and preparation method thereof | |
| KR102164519B1 (en) | Latex modified ultra rapid hardening self levelling finish material composition having excellent curable property in low temperature | |
| CN113480268B (en) | Epoxy polymer modified cement mortar and preparation method thereof | |
| EP2928839B1 (en) | White or colored cementitious mixture for manufacture of concrete, mortar and interactive pastes with photoluminescent properties | |
| US6231665B1 (en) | Efflorescence control in cementitious compositions and masonry units | |
| CN114031342B (en) | Colored gravel concrete composition with strong weather resistance and preparation method thereof | |
| CN108863231B (en) | Waterproof breathable flexible facing brick and preparation method thereof | |
| CN113831077A (en) | Adhesive for water-permeable paving material and application thereof | |
| CN111004002A (en) | Cement-based anti-skid coating material and construction method thereof | |
| CA2231264A1 (en) | Method for producing coloured concrete bodies | |
| KR100982653B1 (en) | Rapid setting polymer cement mortar composite, manufacturing method of boundary block using the composite and boundary block manufactured by the method | |
| KR101851944B1 (en) | Composition for planted eco-friendly earth retaining wall block with improved weatherability and durability and manufacture method planted eco-friendly earth retaining wall block therewith | |
| CN109650771A (en) | A kind of reducing and anti-cracking reinforcing agent, C50 machine-made sand concrete and preparation method | |
| CN110903064B (en) | Modified decorative concrete material and preparation method thereof | |
| CN117923850A (en) | Low-carbon anti-whiskering cement-based decorative mortar based on low cement dosage and preparation method thereof | |
| CN110065278A (en) | A kind of concrete product of normal temperature cure and its preparation method and application | |
| CN110950600A (en) | Colored UHPC (ultra high performance polycarbonate) modeling wall brick with mirror surface effect and preparation method thereof | |
| CN1339414A (en) | Colour bright firming agent | |
| CN114349438B (en) | A kind of mixed soil material and preparation method for 3D printing soil ruins | |
| CN109650795A (en) | A kind of environmental protection stain resistant sponge brick | |
| CN114591037A (en) | Ultrathin crystalline stone and manufacturing method thereof | |
| CN110713363A (en) | Multifunctional wall leveling renovating material | |
| KR102266885B1 (en) | Construction method of wet concrete pigment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |