STUDY OF RICE HUSK ASH TO REPLACE FINE AGGREGATE IN CONCRETE

Concrete is a composite material created by humans, was primarily used as a binding element for buildingsthroughout the construction area. The construction industry is one of the sectors in India that is expandingat the fastest rate. Due to increased demand for buildings and the high pace of development, traditionalbuilding materials like bricks, cement, sand, and wood are becoming scarce. The need for high-qualitybuilding materials to replace traditional ones and the need for reasonably priced and durable materials foraffordable housing have compelled researchers to develop a variety of innovative and creative constructionmaterials. This study investigated the effects of substituting rice husk for fine aggregate in terms of weight onthe workability, bulk density, and compressive strength of concrete in order to maximize the use of locallyavailable resources. The appropriateness of utilizing rice husk at 5%, 10%, 15%, 20%, and 25% as a partialreplacement for fine aggregate in M-20 grades of concrete was also assessed. The type and quantity of curingthat is done before to the test affect the concrete's compressive strength. According to experiments, thestrength after 28 days is greater than that after 7 days. M20 with 10% replacement shows higher strengthvalues than M20 with 15% replacement. This shows that when the proportion increases, the strength valuedecreases.Keyword - Rice husk ash, waste, concrete, compressive strength and Building materials