This paper represents an effort taken to produce light weight concrete by 10%, 20%, 30% & 40% of rice husk ash( RHA) replacement with fine aggregate to achieve strength of M25 and compared with conventional concrete. The cylinder specimen of size 150 x 300, beam size 150 x 150 x700 and cube size of 150 x 150. The curing period of the specimen is 7, 14 and 28 days. Compressive strength is achieved for all mixes especially with 10% RHA replacement is giving more compressive strength comparing to other mixes.

Keywords : Cellular light weight concrete, Cement, Rice Husk Ash, Coarse Aggregate, Fine Aggregate.