Concrete repair

Repair refers to modification of structure, damaged in its appearance or serviceability, to restore, partly or wholly, the pre-existing characteristics of serviceability, load-bearing capacity and if necessary, to improve its durability. Concrete structures deteriorate due to a number of processes leading to cracking and spalling of the concrete. To date, the strategy has been repair and rehabilitation rather than replacement. Replacement may represent a programmed operation if referred to structural elements having a lower intrinsic longevity than the service life of the whole structure. Repairs can range from the elementary, repair of a form-related defect, to the complex, rehabilitation of a load bearing structure.