Light Weight Foamed Concrete as a Substitute for Bricks in Framed Structure

Abstract

Construction industries in India are extensively using various materials such as concrete block, bricks, hollow blocks, etc. for infill walls. These blocks are bulk in weight and have transportation problems. This study aims at the feasibility of cellular lightweight concrete using fly ash, cement and synthetic based foaming agent with density 800 kg/m3. Mix design was prepared with cement to fly ash ratio as 375:375, 250:500, 500:250 kg/m3, followed by water curing. Experimental investigation was conducted on optimized mix with respect to density, compressive strength, water absorption, fire resistance, in addition to extreme environmental conditions. Micro structural studies including SEM/XRD are also performed. The results indicated that foamed concrete block and panels can be used for infill purpose with improved performance and other characteristics.