BE791998A - White cement - of low alumina content - Google Patents

White cement - of low alumina content

Info

Publication number
BE791998A
BE791998A BE791998DA BE791998A BE 791998 A BE791998 A BE 791998A BE 791998D A BE791998D A BE 791998DA BE 791998 A BE791998 A BE 791998A
Authority
BE
Belgium
Prior art keywords
constituent
clinker
compsn
siliceous
c4af
Prior art date
Application number
Other languages
French (fr)
Original Assignee
Smidth & Co As F L
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.)
Publication date
Publication of BE791998A publication Critical patent/BE791998A/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
    • C04B7/00—Hydraulic cements
    • C04B7/345—Hydraulic cements not provided for in one of the groups C04B7/02 - C04B7/34

Abstract

A raw material for cement-clinker is characterised by >=1 of the following (1) The compsn comprises a calcareous constituent, e.g. lime and a siliceous constituent 90% of whose particles have a dimension =30 mu m the C3S constituent of the clinker formed on firing being >80%, the total of the aluminous and ferrous mineral matters in the clinker, e.g. C3A, C4AF, and C2F being is not >6% (C3S, C3A, C4AF and C2F meaning respectively tricalcium silicate, tricalcium aluminate, tetracalcium aluminoferrite and dicalcium ferrite). (2) The siliceous constituent, e.g. finely ground sand, flint, or quartz, replaces kaolin or other classical aluminous constituent, and has sufficient purity for the resultant cement to be white or weakly coloured. (3) The compsn and the (siliceous constituent) (calcareous constituent) ratio are such that there is >90% C3S in the clinker. (4) The compsn. and above ratio are such that there is 2-4% C2A in the clinker.
BE791998D 1971-11-29 White cement - of low alumina content BE791998A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK582871AA DK128649B (en) 1971-11-29 1971-11-29 Process for preparing a cementitious raw material mixture for the production of white cement.

Publications (1)

Publication Number Publication Date
BE791998A true BE791998A (en) 1973-03-16

Family

ID=8145517

Family Applications (1)

Application Number Title Priority Date Filing Date
BE791998D BE791998A (en) 1971-11-29 White cement - of low alumina content

Country Status (8)

Country Link
JP (1) JPS4864115A (en)
AR (1) AR193149A1 (en)
BE (1) BE791998A (en)
BR (1) BR7208383D0 (en)
DK (1) DK128649B (en)
IL (1) IL40879A0 (en)
IT (1) IT971275B (en)
ZA (1) ZA728246B (en)

Also Published As

Publication number Publication date
ZA728246B (en) 1973-07-25
JPS4864115A (en) 1973-09-05
IT971275B (en) 1974-04-30
AR193149A1 (en) 1973-03-30
BR7208383D0 (en) 1973-09-13
DK128649B (en) 1974-06-10
IL40879A0 (en) 1973-01-30

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