ATE485248T1 - Zusatzmittel zur herstellung von chromatfreiem zement - Google Patents

Zusatzmittel zur herstellung von chromatfreiem zement

Info

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
Application number
AT04425891T
Other languages
English (en)
Inventor
Tiziano Cerulli
Matteo Magistri
Anna Bravo
Michele Nicodemi
Federico Morchio
Marco Squinzi
Original Assignee
Mapei Spa
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mapei Spa filed Critical Mapei Spa
Application granted granted Critical
Publication of ATE485248T1 publication Critical patent/ATE485248T1/de

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
    • 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)
AT04425891T 2004-11-25 2004-11-25 Zusatzmittel zur herstellung von chromatfreiem zement ATE485248T1 (de)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006132762A2 (en) * 2005-06-02 2006-12-14 W.R. Grace & Co.-Conn. Biomass-derived grinding aids
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)

* Cited by examiner, † Cited by third party
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
EP1100758B1 (de) * 1998-07-29 2003-12-10 Holderbank Financiere Glarus Ag Verfahren zum herstellen von chromatfreien anorganischen bindemitteln
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

Also Published As

Publication number Publication date
DE602004029690D1 (de) 2010-12-02
EP1661871B1 (de) 2010-10-20
EP1661871A1 (de) 2006-05-31

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Legal Events

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RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties