SETTING AGENT FOR EMULSIFIED POLYMER-ASPHALT WATERPROOFING MEMBRANE MATERIAL AND MANUFACTURING METHOD FOR THE SAME

摘要

Disclosed are a hardening agent for an aqueous rubberized asphalt film waterproofing material and a method for producing the same. According to a preferable embodiment of the present invention, the hardening agent comprises: 21 to 45 wt% of methylene diphenyl diisocyanate; 18 to 35 wt% of a polyurethane prepolymer; 1 to 5 wt% of a surfactant; and 40 to 60 wt% of cement. According to the present invention, an aqueous film waterproofing material is formed into a particular thickness and hardened in a short time, so that a next process may be directly performed. Bubbles are not generated in a waterproof layer or on a surface thereof, so that physical properties such as the sealing properties, strength, and extension percentage of a film layer are not affected. A particular film thickness may be produced through one-time construction, so that construction time may be reduced.