Review of Cracks Rehabilitation and Retrofitting

Occurrence of various crack patterns in the building during construction, after completion when it is subjected to super imposed load or during the service life, is a common phenomenon. A building component develops cracks whenever The stress in the components exceeds its strength. Stress in the building component could be caused by externally applied forces, Such as dead, live, wind or seismicloads, foundation settlement etc. or it could be induced internally due to thermal movements, moisture changes, elastic deformation, chemical action etc. Cracks in buildings could be broadly classified as structural and nonstructural cracks. These occur due to incorrect design, faulty construction or overloading and these may endanger the safety of a building.