Study of lightweight foamed concrete with the addition of industrial waste

Abstract

Another sort of lightweight construction material is foam concrete. Its characteristics include heat insulation, lightweight, low elasticity modulus, and high fluidity. It is tough to burn and has good heat preservation and fire defense qualities. Foam concrete is porous because it is created by equally combining cement slurry with prefabricated foam before setting. It is extensively employed in the engineering of walls, roofs, floor heating, cushions, and backfill. There are still many flaws in the mix design of this concrete that need to be resolved. The technical advancement and quality assurance of foamed concrete are impacted by these flaws and imperfections. This work used fly ash and GGBS in various proportions to replace cement in the compressive strength analysis. This paper examines the primary variables influencing the performance of this concrete and determines the ideal design scheme for the amount of foamed concrete mix to serve as a guide for future research and foamed concrete manufacturing.Foamed concrete is also referred to as CLC and is made by combining Portland cement, sand or fly ash or GGBS, foam and water. Fly ash and GGBS together are used for the replacement of sand and to make concrete lightweight. The percentage of air in the entire volume should range from 40 % to 75 %. The diameter of the bubbles ranges from about 0.1 to 1.55 mm.In a typical concrete mixer or ready mix facility, the elements can be combined to create foamed concrete. It can be successfully pumped over considerable heights and distances. The material has a plastic density that is 150 to 200 kg/m3 to 300 kg/m3 higher than its dry density. The dry density at 28 days varies greatly depending on the composition but typically ranges from 350 to 1700 kg/m3.