ATE485248T1 - Zusatzmittel zur herstellung von chromatfreiem zement - Google Patents
Zusatzmittel zur herstellung von chromatfreiem zementInfo
- Publication number
- ATE485248T1 ATE485248T1 AT04425891T AT04425891T ATE485248T1 AT E485248 T1 ATE485248 T1 AT E485248T1 AT 04425891 T AT04425891 T AT 04425891T AT 04425891 T AT04425891 T AT 04425891T AT E485248 T1 ATE485248 T1 AT E485248T1
- Authority
- AT
- Austria
- Prior art keywords
- chromate
- additives
- production
- free cement
- cement
- Prior art date
Links
- 239000004568 cement Substances 0.000 title abstract 2
- 239000000654 additive Substances 0.000 title 1
- 239000003638 chemical reducing agent Substances 0.000 abstract 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 229910052723 transition metal Inorganic materials 0.000 abstract 1
- 150000003624 transition metals Chemical class 0.000 abstract 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
-
- 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
- C04B2111/10—Compositions or ingredients thereof characterised by the absence or the very low content of a specific material
- C04B2111/1075—Chromium-free or very low chromium-content materials
- C04B2111/1081—Chromium VI, e.g. for avoiding chromium eczema
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP04425891A EP1661871B1 (de) | 2004-11-25 | 2004-11-25 | Zusatzmittel zur Herstellung von chromatfreiem Zement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ATE485248T1 true ATE485248T1 (de) | 2010-11-15 |
Family
ID=34932917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT04425891T ATE485248T1 (de) | 2004-11-25 | 2004-11-25 | Zusatzmittel zur herstellung von chromatfreiem zement |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1661871B1 (de) |
| AT (1) | ATE485248T1 (de) |
| DE (1) | DE602004029690D1 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101184702B (zh) * | 2005-06-02 | 2017-08-08 | Gcp应用技术有限公司 | 源自生物质的助磨剂 |
| FR2917401B1 (fr) * | 2007-06-12 | 2010-08-13 | Gerard Lang | Additif de reduction du chrome hexavalent, son procede d'obtention ,et applications de cet additif notamment dans les produits a base de ciments. |
| CN102134300B (zh) * | 2011-01-21 | 2012-11-21 | 福建科之杰新材料有限公司 | 一种功能化可调两性聚羧酸系水泥助磨剂的制备方法 |
| FR2997319B1 (fr) * | 2012-10-26 | 2014-11-14 | Lafarge Sa | Procede, ensemble de broyage et fabrication d'un liant hydraulique |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK93690D0 (da) * | 1990-04-11 | 1990-04-11 | Aalborg Portland Cement | Cementkomposition |
| AU2718699A (en) * | 1998-01-27 | 1999-08-09 | Chemische Werke Zell-Wildshausen Gmbh | Medium for reducing chromium (vi) ions in a water-curing mass |
| AU8352898A (en) * | 1998-07-29 | 2000-02-21 | Holderbank Financiere Glarus Ag | Method for preparing chromate-free inorganic binding agents |
| JP3942404B2 (ja) * | 2001-11-05 | 2007-07-11 | 電気化学工業株式会社 | セメント混和剤 |
| DE10335363B3 (de) * | 2003-08-01 | 2005-04-07 | Dr. Paul Lohmann Gmbh Kg | Verwendung einer Lösung und Verfahren zur Herstellung eines Mittels zur Reduzierung von Chromanteilen in einer Zementverbindung sowie danach hergestelltes Mittel |
| DE202004010467U1 (de) * | 2004-07-02 | 2004-09-16 | Mig Mbh Material Innovative Gesellschaft Mbh | Zinn-II-Chlorid zur Verbesserung der Frühfestigkeit und Zementqualität |
-
2004
- 2004-11-25 DE DE602004029690T patent/DE602004029690D1/de not_active Expired - Lifetime
- 2004-11-25 AT AT04425891T patent/ATE485248T1/de not_active IP Right Cessation
- 2004-11-25 EP EP04425891A patent/EP1661871B1/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE602004029690D1 (de) | 2010-12-02 |
| EP1661871A1 (de) | 2006-05-31 |
| EP1661871B1 (de) | 2010-10-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |