Deterioration of concrete occurs over a period of time due to exposure to water, chemicals and varied weather conditions. Deterioration takes place at the embedded reinforcing steel and exposed concrete surfaces. Cracks are formed due to improper curing and casting of concrete, which results in leakages. Carbonation and aggressive chemical penetration from chlorides and acidic ions such as sulphates damage the concrete further. Watertightness (Impermeability) is lost due to shrinkage cracks and pores in the concrete that become interconnected. These cracks permit ingress of water, which is the major cause of rust formation on steel reinforcement bars. This culminates in the decreased service life of concrete, requiring repair and rehabilitation.
Fast setting, repair fill and finish mortar for concrete and brickwork