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Transactions of the INDIAN CERAMIC SOCIETY   Vol. 21  1962
Expansion during Hydration of Qranulated Blast Furnace Slag in Presence of Lime and Gypsum
AIDYANATH SAMADDAR AND DURGADAS LAHIRI
Pages :28-35
DOI : 10.1080/0371750X.1962.11011974
Abstract
Expansion during curing of cements consisting of granulated blast furnace slag, lime and gypsum in different proportions was studied. The extent of interaction of reacting components was followed by DT A and measurement of degree of hydration and compressive str.ength. The amount of ettrz'ngite formed was found to determine expansion. Results indicated that the ettringt'te formed at first was accommodated in the pores and when the proportion of ettringz'te increased an expansive force was set up which increased with the increase of ettringite con~ent. Presence of lime and gypsum was found necessary for ettringite formation t.o continue.
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