LW Foam Concrete and Its Application Over Conventional Bricks

Abstract

 Foam concrete is a very light homogeneous  fluid, lightweight cellular concrete fill material, produced by  mixing a cement paste (motor or slurry), with a individually  manufactured, preformed foam. The density of foam concrete  cam be determined by the ratio of foam to slurry and its  densities range varies between 300 and 1600 kg/m3 . Sand,  pulverized fuel ash (PFA), quarry dust or limestone dust may  be used to further enhance the properties of foam concrete.  Foam concrete is made by uniform distribution of tiny air  bubbles throughout the mass of concrete. The foam cells  should have walls, which remain secure during mixing,  transportation, pumping and placing of fresh concrete. The  cells, or bubbles are individual and range in size between 0.1  and1mm. Foam concrete is a freely flowing material and it can  be placed without compacting. This experiment is about how  we replace old conventional bricks with LW foam concrete. we have used different grades of cement for experimental work to check the strength of concrete. Due to its LW it can  be casted as a hollow block which can further be used as a  load bearing member. As the concrete is porous in nature it  can be used to bear the thermal stresses which is caused due  to alternate wetting and drying (temperature variation).