Concrete stands as the most widely used building material in the world due to its affordability, accessibility, and durability as well as its adaptability and diversity. Due to these developing countries, like Ethiopia, are facing a scarcity of river sand in quality and quantity that satisfies the demand for rapid infrastructure growth. The balance between material availability and demand will be disrupted by this rise in demand. Therefore, in order to handle the circumstance, an alternate substance is needed. This studys primary objective was to examine the workability, durability, strength, and cost of partially replacing sand for normal strength concrete with waste brick and laterite soil. The purpose of this experimental study was to examine the physical and mechanical characteristics of concrete that contained laterite soil and waste brick. And this study contains 13 distinct set of mixes, including the control mix utilized in the investigations were available. For concrete with a compressive strength of 25 MPa without additives, mixes with a consistent water-to-cement ratio of 0.49 and slump ranging from 75 to 100 mm were used in this study. And right after mixing, each fresh concrete mix’s workability was assessed. After three, seven, and twenty-eight days, the compressive strengths of 117 concrete cubes measuring 150 mm by 150 mm by 150 mm were evaluated. In comparison to conventional concrete, concrete containing waste brick and laterite soil as a natural substitute for sand shows superior compressive strength and lower proportion of water absorption which is an indication of better durability. However, as the percentage of waste brick and laterite soil replacement increased, workability decline. Concrete having 45% waste brick and 22% laterite soil was the optimum replacement rate, which has 4.43% water absorption capacity and can reduce concrete costs by up to 4.58%.
Mekonen et al. (Thu,) studied this question.