Experimental exploration on crushed bricks considering partial alternate as coarse aggregate for concrete

Abstract

Coarse aggregate can be defined as inert granular materials such as gravel, crushed stone and sand. Coarse aggregate is one of the essential ingredients apart from water and cement in concrete production. The only variable considered in this study was the replacement considering (0%, 10%, 20%, and 30%) of natural stone aggregate of brick aggregate by weight. The use of brick aggregate as a partial replacement of stone aggregate in concrete mortar resulted reductions in unit weight and in compressive strength of concrete. Different relations for determination of compressive strength, strength of mix-aggregate concrete have been tentatively proposed. We can use brick aggregate as coarse aggregate wherever load coming chances are less. A total of 12 numbers of concrete specimens were casted with and without crushed bricks. Test results indicated that using crushed bricks reduces the strength of concrete. Also, the percentage of water to cement ratio increases for constant slump when the percentage of crushed bricks increased.