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Properties of grc containing pfa

1984; Elsevier BV; Volume: 6; Issue: 2 Linguagem: Inglês

10.1016/0262-5075(84)90035-6

1878-2922

B. Singh, A.J. Majumdar, Mohd Amran Md Ali,

Innovations in Concrete and Construction Materials

The properties of glass reinforced cement (grc) sheets made by using Cem-FIL alkali-resistant glass fibres and containing large amounts of pulverized fuel ash (pfa) kept in different environments up to 11 years are described. The trends in the changes of the properties of pfa containing grc's with time are similar to those of composites made from neat OPC. In a relatively dry condition, there is very little change with time but in wet conditions and natural weathering various strength properties show reductions from their peak values. Large (1 m × 1 m) vertically held samples have retained higher proportions of their peak strengths than horizontally placed coupons. The proportion of initial s strength retained by grc on weathering is increased if styrene butadiene rubber latex is included in the mix formulation. Encouraging results have also been obtained using a commercially blended cement/pfa mixture.