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SI2000444T1 - Additive for cement-based composition - Google Patents

Additive for cement-based composition

Info

Publication number
SI2000444T1
SI2000444T1 SI200830239T SI200830239T SI2000444T1 SI 2000444 T1 SI2000444 T1 SI 2000444T1 SI 200830239 T SI200830239 T SI 200830239T SI 200830239 T SI200830239 T SI 200830239T SI 2000444 T1 SI2000444 T1 SI 2000444T1
Authority
SI
Slovenia
Prior art keywords
cement
additive
based composition
heptahydrate
iron
Prior art date
Application number
SI200830239T
Other languages
Slovenian (sl)
Inventor
Christelle Sing
Helene Debegnac
Jean-Michel Faure
Original Assignee
Lafarge Sa
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 Lafarge Sa filed Critical Lafarge Sa
Priority claimed from EP08356079A external-priority patent/EP2000444B1/en
Publication of SI2000444T1 publication Critical patent/SI2000444T1/en

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
    • 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
    • C04B22/142—Sulfates
    • C04B22/149—Iron-sulfates
    • 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
    • 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)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

Additive for cement based composition comprising concrete, a mortar or a cement, comprises particles of iron (II) sulfate dry heptahydrate, which does not comprises more than 20 wt.% of the particles and having a granulometric size of 200 mu m, comprising at least 20 wt.% of iron (II) sulfate dry heptahydrate having granulometric distribution of 100-200 mu m. Independent claims are included for: (1) a cement based composition comprising concrete, mortar or cement, comprising the additive; and (2) a preparation of the composition comprising mixing the iron (II) sulfate dry heptahydrate particles with the cement.
SI200830239T 2007-06-08 2008-06-06 Additive for cement-based composition SI2000444T1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0704128A FR2917082A1 (en) 2007-06-08 2007-06-08 Additive, useful to prepare cement based composition containing concrete, mortar or cement, comprises particles of iron (II) sulfate dry heptahydrate
FR0704151A FR2917083B1 (en) 2007-06-08 2007-06-11 "ADDITIVE FOR CEMENT-BASED COMPOSITION"
EP08356079A EP2000444B1 (en) 2007-06-08 2008-06-06 Additive for cement-based composition

Publications (1)

Publication Number Publication Date
SI2000444T1 true SI2000444T1 (en) 2011-06-30

Family

ID=38654676

Family Applications (1)

Application Number Title Priority Date Filing Date
SI200830239T SI2000444T1 (en) 2007-06-08 2008-06-06 Additive for cement-based composition

Country Status (5)

Country Link
AT (1) ATE500206T1 (en)
DE (1) DE602008005206D1 (en)
ES (1) ES2365280T3 (en)
FR (2) FR2917082A1 (en)
SI (1) SI2000444T1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112329326B (en) * 2020-11-06 2022-05-03 浙江大学 Marine engineering recycled concrete proportioning design method based on modified CPM model and rust inhibitor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2307270A (en) * 1940-08-04 1943-01-05 Mellon Inst Of Ind Res Building material
DE10157129C2 (en) * 2001-11-21 2003-10-30 Ferro Duo Gmbh Process for the production of a hydraulic binder
DE20321107U1 (en) * 2003-07-17 2005-12-15 Kerr-Mcgee Pigments Gmbh Producing a reducing agent containing iron(II) sulfate, used for reducing the soluble chromate content of cement, comprises concentrating spent sulfuric acid and separating the sulfuric acid from the precipitate
FR2894956A1 (en) * 2005-12-20 2007-06-22 Lafarge Sa Coated particles useful in the preparation of a concrete or a mortar, comprises a core comprising ferrous sulfate, tin sulfate and/or manganese sulfate and an envelop comprising a natural/synthetic polysaccharide

Also Published As

Publication number Publication date
ATE500206T1 (en) 2011-03-15
DE602008005206D1 (en) 2011-04-14
FR2917082A1 (en) 2008-12-12
FR2917083B1 (en) 2010-08-27
FR2917083A1 (en) 2008-12-12
ES2365280T3 (en) 2011-09-27

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