LTIP1952A - Method for reducing allergic effect induced by water-soluble cr(vi) available in cements and /or cement- containing half-finished products - Google Patents

Method for reducing allergic effect induced by water-soluble cr(vi) available in cements and /or cement- containing half-finished products

Info

Publication number
LTIP1952A
LTIP1952A LTIP1952A LTIP1952A LTIP1952A LT IP1952 A LTIP1952 A LT IP1952A LT IP1952 A LTIP1952 A LT IP1952A LT IP1952 A LTIP1952 A LT IP1952A LT IP1952 A LTIP1952 A LT IP1952A
Authority
LT
Lithuania
Prior art keywords
cement
water
cements
soluble
available
Prior art date
Application number
LTIP1952A
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=LTIP1952(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 LTIP1952A publication Critical patent/LTIP1952A/en
Publication of LT3519B publication Critical patent/LT3519B/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)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Removal Of Specific Substances (AREA)
  • Processing Of Solid Wastes (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Materials For Medical Uses (AREA)
  • Dental Preparations (AREA)
  • Soil Conditioners And Soil-Stabilizing Materials (AREA)
  • Catalysts (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.
LTIP1952A 1993-06-24 1994-06-14 Method for reducing allergic effect induced by water-soluble cr(vi) available in cements and /or cement- containing half-finished products LT3519B (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
LTIP1952A true LTIP1952A (en) 1995-01-31
LT3519B LT3519B (en) 1995-11-27

Family

ID=6491173

Family Applications (1)

Application Number Title Priority Date Filing Date
LTIP1952A LT3519B (en) 1993-06-24 1994-06-14 Method for reducing allergic effect induced by water-soluble cr(vi) available in cements and /or cement- containing half-finished products

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
EP0960865A1 (en) * 1998-05-25 1999-12-01 Chemische Werke Zell-Wildshausen GMBH Agent for the reduction of chromium (VI) ions in cement
AU2718699A (en) * 1998-01-27 1999-08-09 Chemische Werke Zell-Wildshausen Gmbh Medium for reducing chromium (vi) ions in a water-curing mass
DE59809862D1 (en) * 1998-01-27 2003-11-13 Zell Wildshausen Chem Werke Agent for reducing chromium (VI) ions in cement
EP1100758B1 (en) * 1998-07-29 2003-12-10 Holderbank Financiere Glarus Ag Method for preparing chromate-free inorganic binding agents
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
JP2007520416A (en) * 2004-02-04 2007-07-26 ダブリュー・アール・グレイス・アンド・カンパニー−コネチカット Liquid additives for mutual ground 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
AU2260183A (en) 1982-11-17 1984-06-04 Aalborg Portland-Cement-Fabrik Aktieselskabet A method of improving the properties of a powder
AU2434284A (en) 1983-01-20 1984-08-15 A.B. Cementa Ferrogypsum in the manufacture of cement
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
GR3022781T3 (en) 1997-06-30
EE9400026A (en) 1995-12-15
EP0630869A1 (en) 1994-12-28
LV11316B (en) 1996-12-20
DE59401688D1 (en) 1997-03-13
LV11316A (en) 1996-06-20
EP0630869B1 (en) 1997-01-29
DE4321077A1 (en) 1995-01-05
RU2129868C1 (en) 1999-05-10
RU94021646A (en) 1996-05-27
HUT67949A (en) 1995-05-29
CZ154394A3 (en) 1995-01-18
SK76194A3 (en) 1995-02-08
CZ284621B6 (en) 1999-01-13
HU215460B (en) 1999-01-28
DK0630869T3 (en) 1997-02-17
HU9401886D0 (en) 1994-09-28
ES2102100T3 (en) 1997-07-16
ATE148434T1 (en) 1997-02-15
LT3519B (en) 1995-11-27
PL303961A1 (en) 1995-01-09

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Effective date: 19990614