CONCRETE REPAIR work consist of STRUCTURE REPAIR and CONCRETE  STRENGTHENING.

STRUCTURE REPAIR work is the repairing process of damaged concrete structures (e.g. concrete cracking, spalling, porous / honey-comb), so that the concrete condition returns to normal. CONCRETE STRENGTHENING is the process of strengthening the existing concrete structures (e.g. due to function changes in a certain room), thus increasing the capacity of the concrete structure's strength.

The first method used on STRUCTURE REPAIR work is injection method, to repair cracks on concrete. The second method is patching method system, to repair spalling concrete. The third method is grouting system,to repair porous / honey-comb concrete.

Method used on the STRENGTHENING CONCRETE work consists of Jacketing method, steel-plate, carbon-wrap and laminate systems.