The Failure Behaviour of Concrete Cubes in Compression

Concrete is a mixture of cement, fine aggregate, coarse aggregate, water and sometimes they use admixtures. After the concrete cube is cast and cured, the compression strength of the concrete is tested for 7, 14, and 28 days. The failure behaviour of concrete cubes depends on the type of material used, such as cement, aggregates, and so on. This study explains the concrete cube failure behaviour and what the reasons are for it. The failure behaviour differs for different cube sizes and shapes, and the failure of a concrete cube indicates whether the obtained failure is satisfactory or not. The actual failure of the concrete cube is an hourglass failure; failures other than hourglass failure are due to eccentric loading, flaws in the testing apparatus, human errors, and so on. Concrete cubes can fail in a variety of ways, such as crushing, tensile cracks, edge failure, surface cracks, and so on. Moreover, failure may occur in the aggregates or interface of the concrete matrix. However, in this study, the failure behaviour observed differs for different cubes due to various factors influencing it.