NO309977B1 - Sementblanding i tørr form, samt fremgangsmÕte for reduksjon av mengden av vannløselig kromat i en tørr sementblanding - Google Patents

Sementblanding i tørr form, samt fremgangsmÕte for reduksjon av mengden av vannløselig kromat i en tørr sementblanding Download PDF

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Publication number
NO309977B1
NO309977B1 NO923937A NO923937A NO309977B1 NO 309977 B1 NO309977 B1 NO 309977B1 NO 923937 A NO923937 A NO 923937A NO 923937 A NO923937 A NO 923937A NO 309977 B1 NO309977 B1 NO 309977B1
Authority
NO
Norway
Prior art keywords
cement
manganese
water
sulphate
mixture
Prior art date
Application number
NO923937A
Other languages
English (en)
Norwegian (no)
Other versions
NO923937D0 (no
NO923937L (no
Inventor
Soeren Bang Larsen
Original Assignee
Aalborg Portland As
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 Aalborg Portland As filed Critical Aalborg Portland As
Publication of NO923937D0 publication Critical patent/NO923937D0/no
Publication of NO923937L publication Critical patent/NO923937L/no
Publication of NO309977B1 publication Critical patent/NO309977B1/no

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
    • 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
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/38—Concrete; Lime; Mortar; Gypsum; Bricks; Ceramics; Glass
    • G01N33/383—Concrete or cement
    • 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
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/0004—Compounds chosen for the nature of their cations
    • 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)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Food Science & Technology (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Medicinal Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Processing Of Solid Wastes (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
NO923937A 1990-04-11 1992-10-09 Sementblanding i tørr form, samt fremgangsmÕte for reduksjon av mengden av vannløselig kromat i en tørr sementblanding NO309977B1 (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK093690A DK93690D0 (da) 1990-04-11 1990-04-11 Cementkomposition
PCT/DK1991/000098 WO1991015435A1 (en) 1990-04-11 1991-04-10 A cement composition and methods for producing same

Publications (3)

Publication Number Publication Date
NO923937D0 NO923937D0 (no) 1992-10-09
NO923937L NO923937L (no) 1992-10-09
NO309977B1 true NO309977B1 (no) 2001-04-30

Family

ID=8099192

Family Applications (1)

Application Number Title Priority Date Filing Date
NO923937A NO309977B1 (no) 1990-04-11 1992-10-09 Sementblanding i tørr form, samt fremgangsmÕte for reduksjon av mengden av vannløselig kromat i en tørr sementblanding

Country Status (12)

Country Link
US (1) US5362321A (de)
EP (1) EP0524999B1 (de)
AT (1) ATE139987T1 (de)
AU (1) AU647118B2 (de)
CA (1) CA2080379A1 (de)
DE (1) DE69120672T2 (de)
DK (2) DK93690D0 (de)
FI (1) FI103504B1 (de)
IE (1) IE76464B1 (de)
IS (1) IS1722B (de)
NO (1) NO309977B1 (de)
WO (1) WO1991015435A1 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4321077A1 (de) 1993-06-24 1995-01-05 Dyckerhoff Ag Verfahren zur Depression der Allergien verursachenden Wirkung von wasserlöslichem Cr·V··I· in Zementen und/oder zementhaltigen Zubereitungen
US5792384A (en) * 1997-01-31 1998-08-11 Warren; James R. Concrete masons' hand rinse
EP0960865A1 (de) * 1998-05-25 1999-12-01 Chemische Werke Zell-Wildshausen GMBH Mittel zur Reduzierung von Chrom (VI)-Ionen in einer hydraulisch abbindenden Masse
DE19832127A1 (de) * 1998-07-17 2000-05-04 Ardex Gmbh Shigait bildende Bindemittelmischung
EP1269181A4 (de) * 2000-01-31 2006-05-10 Grace W R & Co Assay-verfahren für hydratierbare zementartige zusammensetzungen
DE10157129C2 (de) * 2001-11-21 2003-10-30 Ferro Duo Gmbh Verfahren zur Herstellung eines hydraulischen Bindemittels
DE20321107U1 (de) * 2003-07-17 2005-12-15 Kerr-Mcgee Pigments Gmbh Zubereitung zur Reduktion des löslichen Chromatgehaltes in Zement
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
FR2858612B1 (fr) * 2003-08-08 2006-02-24 Chryso Sas Suspension aqueuse colloidale d'hydroxyde d'etain destinee a la reduction de chrome dans le ciment
AU2004297504B9 (en) * 2003-11-21 2010-06-03 W.R. Grace & Co.-Conn. Sulfate dispersion chromate reducer
BRPI0507332A (pt) * 2004-02-04 2007-07-03 Grace W R & Co aditivo lìquido para trituração intermediária do cimento
DE602004004870D1 (de) * 2004-03-23 2007-04-05 Gruppo Chimico Dalton S P A Verfahren zur Herstellung von chromatreduziertem Zement
ATE485248T1 (de) * 2004-11-25 2010-11-15 Mapei Spa Zusatzmittel zur herstellung von chromatfreiem zement
GB2426514A (en) * 2005-05-24 2006-11-29 William Blythe Ltd Chromium VI reduced cements
US20070034118A1 (en) * 2005-08-12 2007-02-15 Jardine Leslie A Dosage efficient, storage stable compositions for reducing chromium (VI) in cement
DE102005044941A1 (de) * 2005-09-20 2007-03-22 Eric Blauenstein Verfahren und Mittel zur reduktiven Chromatentgiftung von Zementzubereitungen
US7435518B2 (en) * 2005-10-03 2008-10-14 Xerox Corporation Method of treating an electrophotographic-imaging member with a rare earth material
US7296626B2 (en) * 2005-11-08 2007-11-20 Halliburton Energy Services, Inc. Liquid additive for reducing water-soluble chromate
ITMI20120764A1 (it) 2012-05-07 2013-11-08 Mapei Spa Additivo per cemento portland costituito da un riducente incapsulato in una matrice polimerica
CN113087428B (zh) * 2021-03-26 2022-06-07 唐山冀东水泥外加剂有限责任公司 一种降铬剂及其制备方法和水泥

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE224840C (de) * 1909-05-11 1910-07-29
US1865021A (en) * 1929-11-08 1932-06-28 Yosemite Portland Cement Corp Cement and process of making
IS1443B6 (is) * 1980-12-17 1990-12-14 Aalborg Portland A/S thurr sementsblanda
US4584691A (en) * 1983-08-15 1986-04-22 Herr Ernest A Timed pulse communication system

Also Published As

Publication number Publication date
AU7671091A (en) 1991-10-30
IS1722B (is) 1999-07-26
NO923937D0 (no) 1992-10-09
DK93690D0 (da) 1990-04-11
FI103504B (fi) 1999-07-15
DE69120672T2 (de) 1997-03-06
FI924585L (fi) 1992-10-09
EP0524999B1 (de) 1996-07-03
CA2080379A1 (en) 1991-10-12
IE911222A1 (en) 1991-10-23
WO1991015435A1 (en) 1991-10-17
IE76464B1 (en) 1997-10-22
US5362321A (en) 1994-11-08
FI103504B1 (fi) 1999-07-15
EP0524999A1 (de) 1993-02-03
DK0524999T3 (da) 1996-10-28
NO923937L (no) 1992-10-09
ATE139987T1 (de) 1996-07-15
DE69120672D1 (de) 1996-08-08
FI924585A0 (fi) 1992-10-09
IS3689A7 (is) 1991-10-12
AU647118B2 (en) 1994-03-17

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