Evaluation on crack pattern of concrete masonry wall column

Abstract

In recent years, concrete masonry unit (CMU) structures have been widely used in rural areas of Malaysia. However, it was found to have a poor performance of masonry wall-column regarding to the failure and crack behaviour. This research work presents the investigation and study on the cracking behaviour of concrete masonry wall-column structure. The results from this study will provide a significant understanding of the crack and failure of local in-filled reinforced CMU wall- column. The experimental work involved investigating the failure and crack pattern of CMU wall-column under axial loads performance. The experimental outcomes outlined that reinforced CMU wall-column under axial loading it failed usually due to the cracking caused by a breakdown of the bond between the masonry blocks and the mortar. Therefore, cracking is not due to the tensile failure of the units themselves or of the mortar itself.