Accession Number : AD0751963

Title :   Calcium Silicosulphate and Its Properties (Kaltsievyi Silikosulfat i Ego Svoistva),

Corporate Author : BUILDING RESEARCH STATION WATFORD (ENGLAND)

Personal Author(s) : Luginin,A. N. ; Luginina,I. G.

Report Date : JUL 1972

Pagination or Media Count : 4

Abstract : It has frequently been suggest that an intermediate calcium silicosulphate exists, but its composition has not yet been established. X-ray phase analysis of clinkered raw mixes produced from fine-ground calcite, quartz and gypsum and burned at 1000-1240C, revealed diffraction maxima which cannot be related either to the starting materials or to dicalcium silicate. Heating of clinkers containing the new phase, revealed maxima of anhydrite and beta -2CaO:SiO2 above 1250C on the radiographs. The new phase was synthesised at 1200C from a mixture of dicalcium silicate and anhydrite with addition of mineralizing agent (1% NaF).

Descriptors :   (*CALCIUM COMPOUNDS, SYNTHESIS(CHEMISTRY)), SULFATES, SILICON DIOXIDE, MIXTURES, X RAY DIFFRACTION, PHASE STUDIES, USSR

Subject Categories : Inorganic Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE