LV11316A - Influence of Cr (VI) impurities in water-containing Cr (VI) impurities in cement and / or cement-containing compositions - Google Patents

Influence of Cr (VI) impurities in water-containing Cr (VI) impurities in cement and / or cement-containing compositions

Info

Publication number
LV11316A
LV11316A LV940129A LV940129A LV11316A LV 11316 A LV11316 A LV 11316A LV 940129 A LV940129 A LV 940129A LV 940129 A LV940129 A LV 940129A LV 11316 A LV11316 A LV 11316A
Authority
LV
Latvia
Prior art keywords
cement
water
impurities
influence
lignosulphonate
Prior art date
Application number
LV940129A
Other languages
Latvian (lv)
Other versions
LV11316B (en
Inventor
Volkhart Rudert
Michael Jung
Gabriela Alter
Original Assignee
Dyckerhoff Ag
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6491173&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=LV11316(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Dyckerhoff Ag filed Critical Dyckerhoff Ag
Publication of LV11316A publication Critical patent/LV11316A/en
Publication of LV11316B publication Critical patent/LV11316B/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
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/26—Carbonates
    • C04B14/28—Carbonates of calcium
    • 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
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/14—Waste materials; Refuse from metallurgical processes
    • C04B18/146—Silica fume
    • 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
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/16—Sulfur-containing compounds
    • C04B24/18—Lignin sulfonic acid or derivatives thereof, e.g. sulfite lye
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Civil Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Soil Conditioners And Soil-Stabilizing Materials (AREA)
  • Catalysts (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Removal Of Specific Substances (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Processing Of Solid Wastes (AREA)
  • Dental Preparations (AREA)
  • Materials For Medical Uses (AREA)

Abstract

The invention relates to a method of reducing the allergy-inducing (allergenic) activity of water-soluble Cr<VI> in cements and/or cement-containing preparations, which comprises selecting in preliminary experiments a lignosulphonate from the multiplicity of lignosulphonates available on the market which reduces, in the desired manner, the water-soluble Cr<VI> content on exposure of a cement and/or a cement-containing preparation to water, and adding this selected lignosulphonate to cements and/or cement-containing preparations prior to or during the addition of water in the production of fresh cement mixtures.
LVP-94-129A 1993-06-24 1994-06-21 Method for inhibition of allergic efficacy of water-solubile cr(vi)-admixture in cement or cement-containing concrete compositions LV11316B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19934321077 DE4321077A1 (en) 1993-06-24 1993-06-24 Process for the depression of the allergy-causing effect of water-soluble Cr · V ·· I · in cements and / or preparations containing cement

Publications (2)

Publication Number Publication Date
LV11316A true LV11316A (en) 1996-06-20
LV11316B LV11316B (en) 1996-12-20

Family

ID=6491173

Family Applications (1)

Application Number Title Priority Date Filing Date
LVP-94-129A LV11316B (en) 1993-06-24 1994-06-21 Method for inhibition of allergic efficacy of water-solubile cr(vi)-admixture in cement or cement-containing concrete compositions

Country Status (14)

Country Link
EP (1) EP0630869B1 (en)
AT (1) ATE148434T1 (en)
CZ (1) CZ284621B6 (en)
DE (2) DE4321077A1 (en)
DK (1) DK0630869T3 (en)
EE (1) EE9400026A (en)
ES (1) ES2102100T3 (en)
GR (1) GR3022781T3 (en)
HU (1) HU215460B (en)
LT (1) LT3519B (en)
LV (1) LV11316B (en)
PL (1) PL303961A1 (en)
RU (1) RU2129868C1 (en)
SK (1) SK76194A3 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59809862D1 (en) * 1998-01-27 2003-11-13 Zell Wildshausen Chem Werke Agent for reducing chromium (VI) ions in cement
EP0960865A1 (en) * 1998-05-25 1999-12-01 Chemische Werke Zell-Wildshausen GMBH Agent for the reduction of chromium (VI) ions in cement
WO1999037593A1 (en) * 1998-01-27 1999-07-29 Chemische Werke Zell-Wildshausen Gmbh Medium for reducing chromium (vi) ions in a water-curing mass
DE59810424D1 (en) * 1998-07-29 2004-01-22 Holderbank Financ Glarus METHOD FOR PRODUCING CHROMATE-FREE INORGANIC BINDERS
SK282086B6 (en) 1999-10-12 2001-10-08 Pova�Sk� Cement�Re�, A. S. Manufacturing method for cement with lowered contents of chrome
BRPI0416622A (en) 2003-11-21 2007-01-16 Grace W R & Co sulfate dispersion chromate reducer
CN100441533C (en) * 2004-02-04 2008-12-10 格雷斯公司 Liquid additive for intergrinding cement
GB0507566D0 (en) * 2005-04-14 2005-05-18 Brine Shield Uk Ltd Skin protection

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE248055C (en) *
GB466639A (en) * 1935-07-24 1937-06-01 Dewey & Almy Ltd Improvements in or relating to concrete and hydraulic cement
IS1443B6 (en) 1980-12-17 1990-12-14 Aalborg Portland A/S thurr cement mix
WO1984001942A1 (en) 1982-11-17 1984-05-24 Aalborg Portland Cement Methods of producing a dry cement mixture and a free flowing ferrous sulphate hydrate product and products prepared by the methods
GR79711B (en) 1983-01-20 1984-10-31 Cementa Ab
DD262852A1 (en) * 1987-08-03 1988-12-14 Zementind Rationalisierung METHOD FOR REDUCING THE CHROMATE CONTENT IN THE CEMENT LINKER
DK93690D0 (en) 1990-04-11 1990-04-11 Aalborg Portland Cement CEMENT COMPOSITION

Also Published As

Publication number Publication date
DK0630869T3 (en) 1997-02-17
ATE148434T1 (en) 1997-02-15
PL303961A1 (en) 1995-01-09
LT3519B (en) 1995-11-27
ES2102100T3 (en) 1997-07-16
DE4321077A1 (en) 1995-01-05
LTIP1952A (en) 1995-01-31
EE9400026A (en) 1995-12-15
EP0630869A1 (en) 1994-12-28
HU9401886D0 (en) 1994-09-28
DE59401688D1 (en) 1997-03-13
GR3022781T3 (en) 1997-06-30
HUT67949A (en) 1995-05-29
CZ284621B6 (en) 1999-01-13
HU215460B (en) 1999-01-28
RU94021646A (en) 1996-05-27
SK76194A3 (en) 1995-02-08
EP0630869B1 (en) 1997-01-29
LV11316B (en) 1996-12-20
CZ154394A3 (en) 1995-01-18
RU2129868C1 (en) 1999-05-10

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