| 摘要 |
PURPOSE: A concrete structure repairing insertion composition is provided to offer excellent cohesive property with a precast (PC) product, and excellent intensity and durability by containing a two-liquid type liquid polymer binding material formed of a main material in a specific composition and a curing agent. CONSTITUTION: A concrete structure repairing insertion composition contains a two-liquid type liquid polymer binding material and fine aggregate in a weight ratio of 1:1-2. The liquid polymer binding material contains a main material and a curing agent. The main material is formed of 50-99 wt% of polyurethane resin, 0.1-15 wt% of polystyrene resin, 0.1-15 wt% of polyol resin, 0.1-15 wt% of terephthalate based resin, 0.01-15 wt% of triallyl isocyanurate, 0.01-15 wt% of dibutyltin dilaurate, 0.1-15 wt% of magnesium oxide, 0.1-15 wt% of hollow fine particle, and 0.1-15 wt% of zeolite. The curing agent contains isophorone diisocyanate. |
