国家/地区 韩国（4）
IPC部 C（4）
IPC大类 C04（4）
IPC小类 C04B（4）
IPC C04B024/26（4）
发明人
公开年 2021（2）
申请年 2022（2） 
专利权人

Inter-floor noise prevention system of house useful for preventing noise generated in upper floor from being transmitted to the lower floor, comprises sound absorbing plate installed on concrete slab, and sound wave vibration blocking plate.

HO S J

Sand mastic asphalt concrete composition used for constructing thin layer impermeable composite pavement, comprises high grade asphalt binder comprising petroleum-based asphalt, diisocyanate, polyetherpolyol, secondary amine, polymer modifier and plastic additive, and fine aggregate.

JO M

Repairing concrete structure, comprises e.g. applying surface reinforcement material to concrete structure from which foreign matter is removed, applying surface protective material on repair material application site, and applying ceramic coating material.

PARK J

Manufacture of sidewalk block involves injecting mixture containing cement, water reducing agent and activated silica into mold, applying mixture containing polymer powder and artificial aggregate on formed base layer, pressing and curing.

LEE Y, YEOUL L J