Modification of Cellular Lightweight Concrete Blocks by using Additives

Abstract

Cellular Lightweight Concrete (CLC) is a recent material with cement-like properties, integrated with mechanically entrained foam in a cement-based slurry. Although CLC blocks are lightweight concrete blocks having good thermal insulation and water absorption properties, but they have low compressive strength issues. To counter this problem CLC blocks are modified with additives like Marble dust, Silica fume and Fly ash along with Magnetized water (which is 40% of weight of Cement + Fly ash). Since it has low strength, so study shows that use of magnetized water enhances strength properties of concrete. The samples undergo testing for compressive strength, water absorption, and thermal conductivity. The use of 5% marble dust and silica fume combined with magnetized water has the best impact on compressive strength. These results are obtained on 28 days curing time and can also be studied on 7 days and 14 days curing in future.