Crack repair of cast-in-place slab

Project overview

Crack repair and reinforcement works for basement roof (cast-in-place slab). The roof of the basement is a landscape soil pile. The height of the soil is about 1.5m, and there is a general penetration crack in the bottom of the site. The reasons of the cracks are not detailed, which cause the seepage of the floor. In order to ensure the construction quality and ensure the safety of the construction, this scheme is designed to retrofitting by carbon fiber reinfroced polymer(CFRP) wrap.

Structural strengthening materials

HM-20 carbon fiber reinfroced fabric

HM-30 carbon fiber reinfroced fabric

1. The treatment of concrete surface

2. Primer construction

3. Leveling construction

4. Paste of carbon fiber fabric

5. Curing and conservation