![]() ![]() This requires careful inspection of the site conditions and the anticipated loadings in the design life of the structure. Over time, a structure is likely to develop cracks, however, it is the responsibility of the design engineer to calibrate the design approach in such a way that the stresses in a structure or its elements remain well below the ultimate stress. In construction works involving concrete, the durability of the structure is to be considered equally important as its strength. are all the possible factors that might be a source of uncalculated mayhem for the concrete. In a structural element, stresses are usually developed due to the applied or external loading however, foundation settlement beyond the permissible limits, changes in moisture content of underlying foundation, thermal effects, chemical attacks, moisture ingress, etc. ![]() The primary cause of crack development is the surge in material stresses par its strength. Hence the volume is increased and cracks.Cracks in a concrete structure or any of its elements are a form of dilapidation and have the ability to wreak havoc on the structure depending upon the extent they have penetrated and their origin. The corrosion of steel develops a huge amount of iron oxides and hydroxide that have a much greater volume than the volume of metallic iron. This unusual deformation of concrete results in cracking. The deformation of concrete depends on the type of building materials used in the construction such as bricks, cement concrete blocks, etc. slab etc undergo elastic deformation when loaded. The different components of the building such as wall, column, beam. The load induced in the structure during construction can also lead to cracking especially at the younger stage when the formwork is removed earlier. Construction Overloads & Early Formwork Removal: ![]() Errors in design and detailing such as an inadequate amount of reinforcement, improper design of foundation, precast members and slabs, improper selection of materials, lack of sufficient contraction joints etc may result in excessive cracking. ![]()
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