Properties of multi-blended cement mortars using agro-industrial wastes

Abstract

This study is conducted to investigate the performance of multi-blended pozzolan admixtures as partial cement replacement in cement mortars. Eight types of mixtures were prepared using various agro-industrial wastes as admixtures such as pulverized fuel ash, rice husk ash, slag, and palm oil fuel ash, of which four mixtures have different percentages of admixtures (Multi Blended Cement, MBC), and the others four are single mix (Binary Blended Cement, BBC). The experimental work initially deals with workability, compressive strength development, water absorption, and total porosity of MBC and BBC mortars cured at different curing conditions. The effects of different percentages of MBC and BBC mortars with different water-cement ratios were examined in terms of workability and compressive strength to achieve optimum mix proportions for MBC and BBC mortars. MBC system produced low permeability mortar compared to control, and BBC mortars. The strength properties of MBC mortars were more significant than control and BBC mortars when provided with appropriate curing.