Main Article Content
Abstract
High demand of natural resources due to rapid urbanization and the disposal problem of agricultural wastes in developed countries have created opportunities for use of agro-waste in the construction industry. Many agricultural waste materials are already used in concrete as replacement alternatives for cement, fine aggregate, coarse aggregate and reinforcing materials. This paper reviews some of the agro-waste material, which is used as a partial replacement of cement in concrete. Different properties of fresh and hardened concrete, their durability and NDT when admixed with agro-wastes are reviewed. It has been seen that the agro-waste concrete containing rice husk ash showed better workability than their counterparts did. Agro -waste concrete containing rice husk ash achieved their required strength by 20% of replacement as cement, which were maximum among all agro-waste type concrete. Close relations were predicted among compressive strength, flexural strength, tensile strength, ultrasonic pulse velocity and ductility test of agro-waste concrete. After the review, it is of considerable finding that more research is deserved on all cement replacing agro-waste materials, which can give more certainty on their utilization in concrete.