Cellular Lightweight Concrete Using Fly Ash
Cellular Light weight Concrete (CLWC) is not a new invention in concrete world. It has been known since ancient times. It was made using natural aggregates of volcanic origin such as pumice, scoria, etc. The Greeks and the Romans used pumice in building construction. In this paper, parametric experimental study for producing CLWC using fly ash is presented. The performance of cellular lightweight concrete in term of density and compressive strength are investigated. From the result, it can be seen that compressive strength for cellular light weight concrete is low for lower density mixture. The increments of void throughout the sample caused by the foam in the mixture lowers the density. As a result, compressive strength will also decrease with the increments in void. As strength increases its density also increases. The test result shows that the compressive strength of replacement mixture with 1% of foam is higher than of 1.4% foam. Compressive strength of mixture with 1.2% foam is slightly higher than that of 1.4% foam. In this experimental study, two grades of cement such as 53 and 43 grade cement are used. Compressive strength of 53 grade cement is slightly higher than 43 grade cement.