▎ 摘　　要

NOVELTY - A polyurethane resin mortar comprises 10-20 pts. wt. mixture of isocyanate, polyol, and additive, 5-20 pts. wt. graphene powder, and 65-85 pts. wt. aggregate, and has an elastic-recovery performance of 90% or more measured under a load of 5% by a method according to ASTM D 695. USE - Polyurethane resin mortar. Uses include but are not limited to fixing material for telescopic device, underground parking lot, fish market floor, underground lecture room, repair material for leaf heat or cracks in concrete structure, dam drainage, rust-prevention film for corrosive-reinforcing bars, pipes, large decorative panels in building, bathtub, washbasin, and counter in office, anticorrosion overlay for water level control waterways of dams containing acidic water, etc. ADVANTAGE - The polyurethane resin mortar has excellent workability to enable quick completion of parking lot construction at an early stage, and excellent impact resistance, abrasion resistance, and durability, and does not cause interfacial peeling while having excellent fluidity and fast-hardening property.