WO2018150753A1 - Composition de géopolymère, et mortier et béton l'utilisant - Google Patents
Composition de géopolymère, et mortier et béton l'utilisant Download PDFInfo
- Publication number
- WO2018150753A1 WO2018150753A1 PCT/JP2017/047066 JP2017047066W WO2018150753A1 WO 2018150753 A1 WO2018150753 A1 WO 2018150753A1 JP 2017047066 W JP2017047066 W JP 2017047066W WO 2018150753 A1 WO2018150753 A1 WO 2018150753A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- parts
- geopolymer composition
- fly ash
- mass
- expansion material
- Prior art date
Links
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
- C04B12/00—Cements not provided for in groups C04B7/00 - C04B11/00
- C04B12/04—Alkali metal or ammonium silicate cements ; Alkyl silicate cements; Silica sol cements; Soluble silicate 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
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators or shrinkage compensating agents
- C04B22/06—Oxides, Hydroxides
-
- 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
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators or shrinkage compensating agents
- C04B22/08—Acids or salts thereof
- C04B22/14—Acids or salts thereof containing sulfur in the anion, e.g. sulfides
-
- 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
- C04B28/24—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 alkyl, ammonium or metal silicates; containing silica sols
- C04B28/26—Silicates of the alkali metals
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
-
- 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
Definitions
- the present invention relates to a geopolymer composition, and mortar and concrete using the same.
- fly ash cement which is a mixture of Portland cement and fly ash, which is industrial waste
- Class A exceeding 5% and exceeding 10%
- B type over 10% and 20% or less
- C type over 20% and 30% or less
- Fly ash is fine ash recovered from exhaust gas by a dust collector among coal ash by-produced during coal combustion in a coal-fired power plant or the like. Fly ash is mainly composed of silica (SiO 2 ) and alumina (Al 2 O 3 ), and is standardized to JIS A6201 based on particle size and flow value. Has been used.
- the main raw material in the mixed cement is Portland cement, and it has been practically problematic to increase the mixing ratio of fly ash in the fly ash cement to more than 30% from the viewpoint of strength.
- Fly ash is overwhelmingly used as a raw material for concrete. Therefore, there has been a demand for a technique for producing concrete that does not use cement and uses a large amount of fly ash.
- the geopolymer method is a technique for making artificial rock by joining powders called active fillers using a condensation polymer of silicic acid as a binder. Generally, it is produced by reacting an active filler powder with an alkali silicate solution (water glass or the like).
- Non-Patent Document 2 a geopolymer cured by a condensation polymer has a large drying shrinkage due to the dissipation of water compared to general concrete cured by a hydration reaction. There has been a problem that cracks are likely to occur.
- Patent Document 3 also describes that a highly durable geopolymer can be obtained by using an active filler containing various calcium compounds, but the effect of the type of calcium compound on strength development and length change. Is not listed.
- Patent Document 4 Although it has been shown that the addition of calcium aluminates as a curing accelerator improves the strength of the geopolymer, there is no description of the results of the change in length.
- Patent Document 5 by using a geopolymer additive comprising a composition containing a salt of a specific aliphatic oxycarboxylic acid, curing excellent in workability and appearance without impairing fluidity and strength development. Although it shows that the body can be obtained, the effect on the length change is not described.
- Patent Document 6 mentions an expansion material as a stimulant, and although it shows an effect of improving strength development and neutralization resistance, it shows a reduction in drying shrinkage and an improvement in aesthetics. It has not been.
- a pozzolanic material such as fly ash is contained in the hydraulic composition in an amount of 15% by mass or less, and cannot be used in large quantities with fly ash as a main component.
- the present invention has an object to provide a geopolymer composition that exhibits good strength development and expandability when used as a cured product, has a small drying shrinkage, and has a good appearance when used as a cured product.
- a geopolymer composition comprising an active filler containing fly ash and blast furnace slag, an alkaline solution containing sodium silicate and / or sodium hydroxide, and a cement mineral expansion material.
- a content of the fly ash is 70 to 90 parts by mass with respect to a total of 100 parts by mass of the fly ash and the blast furnace slag.
- the cement mineral expansion material is an ettringite expansion material, a lime expansion material, or a lime / ettringite expansion material.
- the cement mineral expansive material includes free lime, Auin and anhydrous gypsum, the free lime is 30 to 70 parts by mass, the Auin is 5 to 30 parts by mass, and the anhydrous gypsum is 15 to 40 parts by mass.
- a mortar comprising the geopolymer composition according to any one of [1] to [5] above and a fine aggregate.
- a concrete comprising the geopolymer composition according to any one of the above [1] to [5], a fine aggregate, and a coarse aggregate.
- the present invention it is possible to provide a geopolymer composition that exhibits good strength development and expandability when used as a cured product, has small drying shrinkage, and has a good appearance when used as a cured product.
- Geopolymer composition An embodiment of the geopolymer composition of the present invention includes an active filler containing fly ash and blast furnace slag, an alkaline solution containing sodium silicate and / or sodium hydroxide, and a cement mineral-based expansion material. Including.
- expansion occurs with improvement in strength due to crystals caused by an expansion material such as calcium hydroxide and ettringite produced by a hydration reaction of a cement mineral expansion material.
- an expansion material such as calcium hydroxide and ettringite produced by a hydration reaction of a cement mineral expansion material.
- active filler As the active filler contained in the geopolymer composition of the present embodiment, fly ash and blast furnace slag are used. If one of these is not contained, sufficient strength may not be exhibited or sufficient workability may not be obtained.
- Fly ash used for the active filler is fine ash recovered from the exhaust gas by a dust collector among coal ash produced as a by-product during coal combustion in a coal-fired power plant or the like.
- Silica (SiO 2 ) and alumina (Al 2 O 3 ) are the main components, and in JIS A 6201, they are specified as I to IV types based on the particle size and flow value.
- the specifications of fly ash are not particularly limited, but type I and type II are preferred because of their fine particle size and high reactivity.
- the blast furnace slag used for the active filler is by-produced when producing pig iron in the blast furnace and conforms to JIS A 6206 mainly composed of CaO, SiO 2 , Al 2 O 3 , and MgO.
- the content of fly ash with respect to 100 parts by mass in total of fly ash and blast furnace slag is preferably 70 to 90 parts by mass, and more preferably 75 to 85 parts.
- 70 parts or more fluidity can be maintained well and sufficient workability can be easily obtained.
- 90 parts or less strength development property and expansion amount can be further increased.
- active fillers such as municipal waste incineration ash molten slag other than fly ash and blast furnace slag, sewage sludge molten slag, rice husk ash, clinker ass, fluidized bed coal ash, silica fume, metakaolin, and volcanic ash may be included as active fillers. Good.
- the total amount of these other active fillers is preferably 30% or less and more preferably 15% or less in the total amount of the active fillers.
- cement mineral expansion material Commercially available products can be used as the cement mineral expansion material, including ettringite, ettringite / lime, lime, etc. Ettringite / lime expansion materials have better strength development, aesthetics, and expansibility. It is preferable from the viewpoint.
- free lime, Auin and anhydrous gypsum are the main constituent compound compositions, and 10 to 80 parts (preferably 30 to 70 parts) of free lime out of 100 parts in total of free lime, Auin and anhydrous gypsum, Auin Is preferably 15 to 45 parts (preferably 5 to 30 parts) and 10 to 50 parts (preferably 15 to 40 parts) of anhydrous gypsum, and / or a mixture of heat treated products.
- the blending ratio of the cement mineral expansion material with respect to 100 parts of the active filler is preferably 5 to 15 parts, more preferably 8 to 12 parts. When it is 5 parts or more, it is possible to increase the strength development and the amount of expansion, and when it is 15 parts or less, the expansion does not become excessive, and sufficient workability is easily obtained.
- the alkaline solution is a solution in which the active filler, the expansion material and the aggregate are kneaded.
- the alkaline solution include sodium silicate solution (water glass), potassium silicate solution, sodium hydroxide aqueous solution, potassium hydroxide aqueous solution and the like. These 1 type (s) or 2 or more types can be used. In particular, the combined use of a sodium silicate solution and an aqueous sodium hydroxide solution is preferred.
- various types of admixtures and admixtures can be added to the geopolymer composition in the present embodiment as long as the effects of the present invention are not impaired.
- examples thereof include a fluidizing agent, a shrinkage reducing agent, a rust preventive agent, a waterproofing material, a setting retarder, an antifoaming agent, a dust reducing agent, a pigment, and calcium carbonate powder.
- the geopolymer composition in the present embodiment is prepared, for example, by mixing predetermined amounts of active filler, alkaline solution, cement-based expansion material, and various additives simultaneously or sequentially as necessary, and kneading with a kneader as appropriate. It can.
- the kneading apparatus is not particularly limited, and examples thereof include a forced biaxial mixer used for kneading concrete.
- the geopolymer composition in this embodiment may exist as a part of raw material.
- An embodiment according to the mortar of the present invention includes the geopolymer composition of the present invention and a fine aggregate. Moreover, embodiment which concerns on the concrete of this invention contains the geopolymer composition of this invention, a fine aggregate, and a coarse aggregate.
- the various aggregates are not particularly limited as long as they are generally used for ordinary mortar and concrete. Examples include natural aggregates such as river gravel, mountain gravel, sea gravel, crushed stone, and volcanic gravel lightweight aggregates, and artificial aggregates such as slag aggregates, artificial lightweight aggregates, and heavy aggregates.
- the blending amount of the fine aggregate in the preparation of the mortar is preferably 50 to 500 parts, more preferably 100 to 300 parts with respect to 100 parts of the geopolymer composition.
- the blending amount of the fine aggregate and the coarse aggregate at the time of producing the concrete is preferably 200 to 1000 parts, more preferably 300 to 600 parts with respect to 100 parts of the geopolymer composition.
- the cured product of mortar or concrete of this embodiment exhibits various characteristics resulting from the geopolymer composition of the present invention during the curing, and the appearance after curing is almost entirely white. Do not have a good aesthetic.
- Powder composed of active filler and expansion material (see Experimental Examples 1 to 3 for composition and ratio): 600 parts by weight, sodium silicate solution diluted twice with water: 100 parts by weight, aqueous sodium hydroxide solution: 100 parts by weight, water : 100 parts by mass, fine aggregate: 1350 parts by mass were prepared in a room at 20 ° C., sealed up to 1 day of age, and demolded.
- Example 1 With respect to 100 parts of the active filler having the composition shown in Table 2, the expansion material D was 10 parts, and the mortar was prepared according to (Production of Geopolymer Mortar), and the compression strength and the rate of change in length were measured. For comparison, mortars prepared without using blast furnace slag or fly ash or without using an expanding material were also evaluated.
- the use of the geopolymer composition included in the present invention consisting of fly ash and blast furnace slag, an expansion material, and an alkaline solution provides excellent strength development and aesthetics, expandability, and drying. It can be seen that a mortar using the geopolymer composition with reduced shrinkage is obtained.
- Example 2 80 parts of fly ash in 100 parts of active filler was used.
- Mortar was prepared according to (Production of geopolymer mortar) with 10 parts of the expansion material shown in Table 3 with respect to 100 parts of active filler, and the compressive strength and the rate of change in length were measured.
- Example 3 80 parts of fly ash in 100 parts of active filler was used.
- Mortar was prepared according to (Production of geopolymer mortar) as a ratio shown in Table 4 with respect to 100 parts of the active filler, and the compressive strength and the rate of change in length were measured.
- the mortar using the geopolymer composition which is excellent in strength development and aesthetics, has expansibility, and has reduced drying shrinkage by making the amount of the expansion material used relative to the active filler a predetermined ratio. It turns out that it is obtained.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201780082859.3A CN110167901A (zh) | 2017-02-14 | 2017-12-27 | 土工聚合物组合物以及使用其的砂浆及混凝土 |
AU2017399309A AU2017399309B2 (en) | 2017-02-14 | 2017-12-27 | Geopolymer composition, and mortar and concrete using same |
MYPI2019004514A MY196681A (en) | 2017-02-14 | 2017-12-27 | Geopolymer Composition, and Mortar and Concrete Using Same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017-025354 | 2017-02-14 | ||
JP2017025354A JP2020055696A (ja) | 2017-02-14 | 2017-02-14 | ジオポリマー組成物、並びにそれを用いたモルタル及びコンクリート |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2018150753A1 true WO2018150753A1 (fr) | 2018-08-23 |
Family
ID=63169748
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2017/047066 WO2018150753A1 (fr) | 2017-02-14 | 2017-12-27 | Composition de géopolymère, et mortier et béton l'utilisant |
Country Status (5)
Country | Link |
---|---|
JP (1) | JP2020055696A (fr) |
CN (1) | CN110167901A (fr) |
AU (1) | AU2017399309B2 (fr) |
MY (1) | MY196681A (fr) |
WO (1) | WO2018150753A1 (fr) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113773028A (zh) * | 2021-08-17 | 2021-12-10 | 湖南大学 | 地聚物混凝土及其制备方法 |
CN114573293A (zh) * | 2022-03-05 | 2022-06-03 | 山东恒建新材料技术有限公司 | 公路基层混合料及低碳施工方法 |
CN115215597A (zh) * | 2022-08-25 | 2022-10-21 | 同济大学 | 一种盾构渣浆碱激发再生砂浆及其制备方法和应用 |
JP2023184407A (ja) * | 2022-06-16 | 2023-12-28 | 株式会社鴻池組 | 地盤改良材及びその製造方法 |
US12240785B2 (en) | 2018-12-10 | 2025-03-04 | Imertech Sas | Geopolymer foam composition |
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CN110510966B (zh) * | 2019-09-29 | 2021-12-31 | 中国建筑第五工程局有限公司 | 高强度的渣土免烧制品及其制备方法 |
JP2021178761A (ja) * | 2020-05-15 | 2021-11-18 | 清水建設株式会社 | ジオポリマー組成物、ジオポリマー組成物の製造方法及びジオポリマー硬化体の製造方法 |
JP7686466B2 (ja) * | 2021-06-16 | 2025-06-02 | 株式会社竹中工務店 | ジオポリマー組成物及びジオポリマー硬化体 |
JPWO2023100915A1 (fr) * | 2021-12-02 | 2023-06-08 | ||
CN116217191B (zh) * | 2023-03-22 | 2024-09-20 | 西京学院 | 一种寒区沙漠沙复合碱激发抗冻砂浆及其制备、施工方法 |
CN118324377B (zh) * | 2024-06-17 | 2024-11-01 | 中国科学院生态环境研究中心 | 一种含聚油泥的处理方法及清洗剂 |
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JP2000327398A (ja) * | 1999-05-20 | 2000-11-28 | Toagosei Co Ltd | 硬化性組成物 |
JP2008201592A (ja) * | 2007-02-16 | 2008-09-04 | Denki Kagaku Kogyo Kk | 膨張材、セメント組成物、及びそれを用いたセメントコンクリート |
JP2012211453A (ja) * | 2011-03-31 | 2012-11-01 | Nishimatsu Constr Co Ltd | 合成セグメントおよびシールドトンネル |
Family Cites Families (2)
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---|---|---|---|---|
JP4386503B2 (ja) * | 1999-08-25 | 2009-12-16 | 電気化学工業株式会社 | セメント混和材及びセメント組成物 |
CN105645813B (zh) * | 2016-01-22 | 2018-08-10 | 河南城建学院 | 一种桥梁桥面加固水泥添加剂及其制备方法 |
-
2017
- 2017-02-14 JP JP2017025354A patent/JP2020055696A/ja active Pending
- 2017-12-27 CN CN201780082859.3A patent/CN110167901A/zh active Pending
- 2017-12-27 WO PCT/JP2017/047066 patent/WO2018150753A1/fr active Application Filing
- 2017-12-27 MY MYPI2019004514A patent/MY196681A/en unknown
- 2017-12-27 AU AU2017399309A patent/AU2017399309B2/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000327398A (ja) * | 1999-05-20 | 2000-11-28 | Toagosei Co Ltd | 硬化性組成物 |
JP2008201592A (ja) * | 2007-02-16 | 2008-09-04 | Denki Kagaku Kogyo Kk | 膨張材、セメント組成物、及びそれを用いたセメントコンクリート |
JP2012211453A (ja) * | 2011-03-31 | 2012-11-01 | Nishimatsu Constr Co Ltd | 合成セグメントおよびシールドトンネル |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US12240785B2 (en) | 2018-12-10 | 2025-03-04 | Imertech Sas | Geopolymer foam composition |
CN113773028A (zh) * | 2021-08-17 | 2021-12-10 | 湖南大学 | 地聚物混凝土及其制备方法 |
CN114573293A (zh) * | 2022-03-05 | 2022-06-03 | 山东恒建新材料技术有限公司 | 公路基层混合料及低碳施工方法 |
JP2023184407A (ja) * | 2022-06-16 | 2023-12-28 | 株式会社鴻池組 | 地盤改良材及びその製造方法 |
JP7427210B2 (ja) | 2022-06-16 | 2024-02-05 | 株式会社鴻池組 | 地盤改良材及びその製造方法 |
CN115215597A (zh) * | 2022-08-25 | 2022-10-21 | 同济大学 | 一种盾构渣浆碱激发再生砂浆及其制备方法和应用 |
Also Published As
Publication number | Publication date |
---|---|
CN110167901A (zh) | 2019-08-23 |
AU2017399309A1 (en) | 2019-07-25 |
MY196681A (en) | 2023-04-29 |
JP2020055696A (ja) | 2020-04-09 |
AU2017399309B2 (en) | 2023-02-23 |
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