This is the construction method for improving concrete durability by exerting water proofing property ability at the inside of the joint area and machinery room among the concrete structure’s underground facility/water and sewage processing facilities.

1) It exhibits excellent waterproof performance as a coating waterproof material composed of a polymer acrylic polymer with excellent water resistance and a special cement powder.

2) The construction performance is improved due to the low impact of the moisture-containing condition of the concrete foundation

3) There is an effect of reducing the maintenance cost of the structure due to the improvement of the durability of the structure.

It is applied for waterproofing of the water and sewage concrete structure, the underground facility in concrete structure and the underground parking lot.