Perception of professionals on causes of structural cracks in concrete buildings
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Of recent, the incessant collapse of buildings in some major cities in Nigeria has
become a major concern to professionals in the construction industry and the general public
because it has resulted in most cases loss of lives and valuables which could affect our attaining
the sustainable development goals (SDGs). One of the key features that affect the quality of built
structures and usage is crack. The occurrence of a crack in a structural member can weaken the
member and eventually lead to building failure and outright collapse. This paper examines the
perception of professionals in the Nigeria building industry on the causes and impact of crack on
built structures. Primary data were obtained through questionnaires administered to practising
professionals within Lagos state. Results obtained from the majority of the professionals indicate
that occurrence of a crack in the building is majorly caused by foundation settlement, poor
selection of construction materials and technique, design error and corrosion of the steel bar and
thus have a significant impact on the structural integrity of the building. It was concluded by
proposing certain preventive measures to mitigate crack in buildings so as to prevent possible
building failure and attainment of the SDGs.
Keywords
TA Engineering (General). Civil engineering (General)