Accession Number : AD0717136

Title :   The System CaO-2CaO.SiO2-CaF2.

Descriptive Note : Current papers,

Corporate Author : BUILDING RESEARCH STATION WATFORD (ENGLAND)

Personal Author(s) : Gutt,W. ; Osborne,G. J.

Report Date : AUG 1970

Pagination or Media Count : 10

Abstract : The system CaO-2CaO.SiO2-CaF2 was studied to elucidate the role of fluoride, either naturally present or deliberately added to the raw materials, in the manufacture of cement. Phase-equilibrium investigations have now provided sufficient information to enable a phase diagram to be proposed for the system. The new compound, of probable composition (3CaO.SiO2)3.CaF2, has a primary crystallization field in this system which has been delineated. The join 3CaO.SiO2-CaF2, and the isothermal section of the ternary system at 1000C have also been studied. The technical significance of the results is discussed. (Author)

Descriptors :   (*CEMENTS, *PHASE STUDIES), (*CALCIUM OXIDES, PHASE STUDIES), (*CALCIUM FLUORIDES, PHASE STUDIES), SILICATES, PHASE DIAGRAMS, DIFFERENTIAL THERMAL ANALYSIS, HEAT TREATMENT, GREAT BRITAIN

Subject Categories : Physical Chemistry
      Ceramics, Refractories and Glass

Distribution Statement : APPROVED FOR PUBLIC RELEASE