Penetration reinforcing agent for preventing aging of concrete and process for preparing the same

摘要

Disclosed herein is a penetration reinforcing agent for preventing aging of concrete. The penetration reinforcing agent is prepared by using an inorganic silicate compound having an ethoxy or methoxy group and a monomer having a hydroxyl (OH) group. When the penetration reinforcing agent is applied onto the surface of a concrete structure by using a spray gun or a brush, it penetrates the concrete structure where it is hydrolyzed by water existing within the concrete to form silica (SiO₂) having a particle size of several nanometers, is gelled by a sol-gel process and reacts with concrete hydrates, so that internal pores of the concrete structure are compactly filled with the reaction products. Therefore, the penetration reinforcing agent is effective in enhancing the strength of the concrete structure, inhibiting penetration of aging factors into the concrete structure, improving waterproofness of the concrete structure and preventing neutralization of the concrete structure. Further disclosed are a process for preparing the penetration reinforcing agent and a method of applying the penetration reinforcing agent onto concrete.