Accession Number:

AD0751963

Title:

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

Descriptive Note:

Corporate Author:

BUILDING RESEARCH STATION WATFORD (ENGLAND)

Personal Author(s):

Report Date:

1972-07-01

Pagination or Media Count:

4.0

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 -2CaOSiO2 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.

Subject Categories:

  • Inorganic Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE