Utilization of industrial wastes and unprocessed micro-fillers for making cost effective mortars

The use of fly ash, slag, silica fume and marble dust as replacement of cement on the compressive strength and cost effectiveness of low w/c ratio superplasticized portland cement mortars was investigated. The blending of industrial wastes in mortars was also studied. Cement mortars (1:3 and 1:6) incorporating various proportions of industrial wastes were designed to have a flow of 110 ± 5%. The compressive strength of mortars with and without superplasticizer was determined at 1, 3, 7, 28 and 180 days and their cost effectiveness was analyzed.