Management of pumicecrete as lwc/lwa construction material with fly ash as part cement substitute

Lightweight concrete reduces the dead load of the huge concrete structures of low thermal conductivity. Recent advances in light weight concrete and light weight aggregates focuses on optimization of cost, material, labour and time of construction by use of undisposed industrial and dismantled wastes. Present study envisages design of light weight concrete of M25 grade and study of their mechanical properties like compressive strength, split tensile strength by replacement by 25% and 33% in volume of pumice stone as coarse aggregate and their different combinations with 10%, 20% and 30% fly ash which is an industrial waste as replacement of cement. The specially prepared concrete is compared with the properties of convention concrete of M25 grade. At 20% replacement of cement by fly ash the optimum compressive strength was observed but at 10% replacement of cement by fly ash the maximum split tensile strength was achieved when cured for at 28 days. The management of the type of pumicecrete for green house building is also discussed.