ZA731290B - Process for the manufacture of virtually bloom-free gypsum products - Google Patents

Process for the manufacture of virtually bloom-free gypsum products

Info

Publication number
ZA731290B
ZA731290B ZA731290A ZA731290A ZA731290B ZA 731290 B ZA731290 B ZA 731290B ZA 731290 A ZA731290 A ZA 731290A ZA 731290 A ZA731290 A ZA 731290A ZA 731290 B ZA731290 B ZA 731290B
Authority
ZA
South Africa
Prior art keywords
bloom
virtually
manufacture
gypsum products
free gypsum
Prior art date
Application number
ZA731290A
Other languages
English (en)
Inventor
H Groeger
Original Assignee
Knauf Westdeutsche Gips
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 Knauf Westdeutsche Gips filed Critical Knauf Westdeutsche Gips
Publication of ZA731290B publication Critical patent/ZA731290B/xx

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
    • 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
    • C04B28/14—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 calcium sulfate cements
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/46—Sulfates
    • C01F11/468—Purification of calcium 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
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/005—Halogen-containing compounds
    • 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
    • C04B24/04—Carboxylic acids; Salts, anhydrides or esters thereof
    • 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
    • C04B24/12—Nitrogen containing compounds organic derivatives of hydrazine
    • C04B24/123—Amino-carboxylic acids
    • 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
    • C04B24/20—Sulfonated aromatic compounds
    • 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
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/21—Efflorescence resistance

Landscapes

  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Cosmetics (AREA)
ZA731290A 1972-02-24 1973-02-23 Process for the manufacture of virtually bloom-free gypsum products ZA731290B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722208730 DE2208730B2 (de) 1972-02-24 1972-02-24 Verfahren zur herstellung von praktisch ausbluehungsfreien gipsprodukten

Publications (1)

Publication Number Publication Date
ZA731290B true ZA731290B (en) 1974-05-29

Family

ID=5836955

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA731290A ZA731290B (en) 1972-02-24 1973-02-23 Process for the manufacture of virtually bloom-free gypsum products

Country Status (5)

Country Link
BE (1) BE795294A (xx)
DE (1) DE2208730B2 (xx)
FR (1) FR2182835A1 (xx)
NL (1) NL7300868A (xx)
ZA (1) ZA731290B (xx)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4126599A (en) * 1976-02-26 1978-11-21 Mizusawa Kagaku Kogyo Kabushiki Kaisha Water-resistant shaped structure of gypsum and process for production thereof
WO2013001038A1 (en) * 2011-06-29 2013-01-03 Sika Technology Ag Skin layer reduction in calcium sulfate based binder compositions

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20751C (de) * F. W. POESTGES in Düsseldorf, Ackerstr. 109 Verfahren zur Herstellung von Massen I für künstliche Steine und Putz und zum Färben j des letzteren
GB458767A (en) * 1935-06-24 1936-12-24 John Stanley Dunn Improvements in and relating to calcium sulphate plasters
GB484304A (en) * 1936-11-02 1938-05-02 Gyproc Products Ltd Improvement in plaster of paris compositions
US2605191A (en) * 1950-02-25 1952-07-29 Johnson & Johnson Method of making plaster of paris product
FR1121125A (fr) * 1955-02-04 1956-07-23 Procédé de traitement du plâtre
US3054687A (en) * 1960-04-14 1962-09-18 Dow Chemical Co Retardation of set time of aqueous gypsum compositions

Also Published As

Publication number Publication date
FR2182835A1 (en) 1973-12-14
BE795294A (fr) 1973-05-29
DE2208730A1 (de) 1973-08-30
NL7300868A (xx) 1973-08-28
FR2182835B1 (xx) 1977-09-02
DE2208730B2 (de) 1976-10-07

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