FR2294991A1 - Protecting glass fibre reinforcement from attack by alkali in cement e - by chemical treatment with inorganic acid, organic acid, or acid salt etc. - Google Patents

Protecting glass fibre reinforcement from attack by alkali in cement e - by chemical treatment with inorganic acid, organic acid, or acid salt etc.

Info

Publication number
FR2294991A1
FR2294991A1 FR7538680A FR7538680A FR2294991A1 FR 2294991 A1 FR2294991 A1 FR 2294991A1 FR 7538680 A FR7538680 A FR 7538680A FR 7538680 A FR7538680 A FR 7538680A FR 2294991 A1 FR2294991 A1 FR 2294991A1
Authority
FR
France
Prior art keywords
acid
chemical
attack
alkali
matrix
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.)
Withdrawn
Application number
FR7538680A
Other languages
French (fr)
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.)
Euroc Administration AB
Original Assignee
Euroc Administration AB
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 Euroc Administration AB filed Critical Euroc Administration AB
Publication of FR2294991A1 publication Critical patent/FR2294991A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
    • C03C25/64—Drying; Dehydration; Dehydroxylation
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
    • C03C25/66—Chemical treatment, e.g. leaching, acid or alkali treatment
    • 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
    • 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

Abstract

Process for the protection of glass fibres against chemical decomposition when the fibres are used as reinforcement for an alkaline matrix in an aq. phase consists of the use of >=1 chemical which reacts with the matrix and/or with the reaction products obtd. from the matrix and the water, so that the hydroxyl ions are chemically bonded with the simultaneous formation of a deposit in the immediate vicinity of the glass fibres, protecting the latter from attack by alkali. The chemical is pref. an acid, e.g. colloidal SiO2, crystalline boric acid, or an organic acid such as oxalic-, citric- or tartaric- acid. An inexpensive method of protecting glass fibres used e.g. for reinforcing portland cement or lime-silica mixtures. The pref. chemical also include an acid salt, e.g. a hydrogen phosphate, hydrogen sulphate, bicarbonate, or an acid anhydride, e.g. CO2, B2O3, or a hydrolysable cpd. forming an acid e.g. a hexafluorosilicate, and other chemicals may also be added.
FR7538680A 1974-12-17 1975-12-17 Protecting glass fibre reinforcement from attack by alkali in cement e - by chemical treatment with inorganic acid, organic acid, or acid salt etc. Withdrawn FR2294991A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7415815A SE7415815L (en) 1974-12-17 1974-12-17 WAY TO PROTECT GLASS FIBER IN AN ALKALIC ENVIRONMENT

Publications (1)

Publication Number Publication Date
FR2294991A1 true FR2294991A1 (en) 1976-07-16

Family

ID=20323025

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7538680A Withdrawn FR2294991A1 (en) 1974-12-17 1975-12-17 Protecting glass fibre reinforcement from attack by alkali in cement e - by chemical treatment with inorganic acid, organic acid, or acid salt etc.

Country Status (4)

Country Link
JP (1) JPS5184994A (en)
DE (1) DE2556539A1 (en)
FR (1) FR2294991A1 (en)
SE (1) SE7415815L (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1565823A (en) * 1976-11-11 1980-04-23 Pilkington Brothers Ltd Coating of glass fibres
US4228204A (en) * 1978-06-26 1980-10-14 Daiichikasei Co., Ltd. Method of treating glass fibers
DE2908435A1 (en) * 1979-03-05 1980-09-11 Ihlefeld Karl Helmut METHOD FOR THE PRODUCTION OF MINERAL FIBER CONCRETE AND MINERAL FIBERS FOR THE SAME
WO1981000252A1 (en) * 1979-07-13 1981-02-05 Aalborg Portland Cement Fiber-reinforced composite materials and shaped articles
GB9525475D0 (en) 1995-12-13 1996-02-14 Rockwool Int Man-made vitreous fibres and their production

Also Published As

Publication number Publication date
SE7415815L (en) 1976-06-18
JPS5184994A (en) 1976-07-24
DE2556539A1 (en) 1976-07-01

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Legal Events

Date Code Title Description
ST Notification of lapse