FR2145286A5 - Building materials - retain strength and appearance by converting soluble sulphates to insoluble sulphates - Google Patents

Building materials - retain strength and appearance by converting soluble sulphates to insoluble sulphates

Info

Publication number
FR2145286A5
FR2145286A5 FR7224409A FR7224409A FR2145286A5 FR 2145286 A5 FR2145286 A5 FR 2145286A5 FR 7224409 A FR7224409 A FR 7224409A FR 7224409 A FR7224409 A FR 7224409A FR 2145286 A5 FR2145286 A5 FR 2145286A5
Authority
FR
France
Prior art keywords
sulphates
insoluble
appearance
building materials
water
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
FR7224409A
Other languages
French (fr)
Inventor
J Feder
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR2145286A5 publication Critical patent/FR2145286A5/en
Expired legal-status Critical Current

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
    • C04B28/18—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 mixtures of the silica-lime type
    • 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, shrinkage compensating agents
    • C04B22/08—Acids or salts thereof
    • C04B22/10—Acids or salts thereof containing carbon in the anion
    • 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
    • C04B28/10—Lime cements or magnesium oxide 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
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/29—Frost-thaw resistance
    • 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

  • 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)
  • Press-Shaping Or Shaping Using Conveyers (AREA)

Abstract

Process for obtaining building materials comprises mixing a filler with a binder, pref. lime, and with water and then firing in an autoclave using steam above atmos. press. and at temp. >100 degrees C. Insoluble carbonates esp. Ba carbonate are added to the mixt. before firing in excess quantities than stoichiometrically necessary to ensure that all soluble sulphates are converted to insoluble sulphates. Impurities present in the mixture are made insoluble in water by an economic process thus the material is no longer subject to erosion by water in the atmos. and so it retains its strength, appearance and insulating props.
FR7224409A 1971-07-07 1972-07-06 Building materials - retain strength and appearance by converting soluble sulphates to insoluble sulphates Expired FR2145286A5 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US16048471A 1971-07-07 1971-07-07
CH567072 1972-04-18

Publications (1)

Publication Number Publication Date
FR2145286A5 true FR2145286A5 (en) 1973-02-16

Family

ID=25698180

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7224409A Expired FR2145286A5 (en) 1971-07-07 1972-07-06 Building materials - retain strength and appearance by converting soluble sulphates to insoluble sulphates

Country Status (9)

Country Link
AU (1) AU475690B2 (en)
BE (1) BE785852A (en)
DD (1) DD97646A5 (en)
DE (1) DE2233346A1 (en)
ES (1) ES404655A1 (en)
FR (1) FR2145286A5 (en)
IL (1) IL39818A0 (en)
IT (1) IT962486B (en)
NL (1) NL7209429A (en)

Also Published As

Publication number Publication date
ES404655A1 (en) 1975-11-16
AU475690B2 (en) 1976-09-02
NL7209429A (en) 1973-01-09
IL39818A0 (en) 1972-09-28
AU4430172A (en) 1974-01-10
BE785852A (en) 1972-11-03
IT962486B (en) 1973-12-20
DD97646A5 (en) 1973-05-12
DE2233346A1 (en) 1973-01-18

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Legal Events

Date Code Title Description
ST Notification of lapse