Cracks are the common occurrence and are the major problem of concrete construction, as it affects the building aesthetically. It destroys the wall integrity, affects the structure safety and even reduces the durability of structure. Cracks develop due to deterioration of concrete or corrosion of reinforcement bars due to poor construction or inappropriate selection of constituent material and by temperature and shrinkage effects. It also develops when the stress in components exceeds its strength. Stress is either caused externally or internally. They even develop due to incorrect design, faulty construction or overloading. So, timely identification of cracks and adopting preventive measures are essential.
Techniques to cure crack filling are Epoxy injection, sealing, stitching etc.