| Enhancement of Strength of Expansive Cements of
Slag-Lime-Gypsum System by Setting
under Constraint |
A. RoY, A. K. BANDOPADHYAYA AND B. N. SAMADDAR
Pages : 55-60
DOI : 10.1080/0371750X.1988.10822889 |
| Abstract |
| In order to utilize the expansive property of the slag-sulphate cement
to make high-strength construction materials, suitable mixtures of
slag-lime-gypsum (S-L-G) were studied on 1 : 3 cement-sand mortars.
The strength under constrained condition was found to be substantially
higher than that under free condition as a function of curing time.
The strength under constrained condition was also dependent on expansion
and composition up to a certain extent, after which a stable
behaviour was observed. This was ascribed to the stabilization of the
morphology at longer time. A mechanistic model has been proposed
to explain the higher strength under constrained condition by the
difference of expansion at different time intervals being normalized to
a unit L/G ratio. |
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