A waterproof structure of a post-cast cover plate of a floor

By using waterproof tape and a flexible sealing structure at the stepped joints of the post-cast strips in the floor slab, the waterproofing problem caused by the gaps in the stepped joints was solved, achieving a better waterproofing effect.

CN224379150UActive Publication Date: 2026-06-19RANKEN RAILWAY CONSTR GROUP

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
RANKEN RAILWAY CONSTR GROUP
Filing Date
2025-06-10
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

The existing stepped joint structure at the junction of the post-cast strip of the floor slab and the concrete on both sides creates gaps at the corners of the stepped grooves, affecting the waterproofing effect.

Method used

Water-stop tape is connected at the inner corner of the stepped structure of the already poured floor slab, and a flexible sealing structure, including water-swellable rubber strips and polyurethane caulking compound, is filled at the top of the multi-step stepped structure to fill the gaps and prevent moisture penetration.

Benefits of technology

It improves the waterproofing effect of the post-pouring strip, prevents water from penetrating along the thickness of the floor slab, and enhances the overall waterproofing performance of the floor slab.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224379150U_ABST
    Figure CN224379150U_ABST
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Abstract

The utility model relates to the field of engineering construction discloses a floor post-pouring cover plate waterproof structure, including has poured structure, water stop and flexible sealing structure, the poured structure is provided with multistage ladder, multistage ladder is located the junction of has poured structure and post-pouring structure, water stop is connected in the inside corner department of multistage ladder, and along the length direction of multistage ladder extends, the flexible sealing structure fills in the top ladder department of multistage ladder structure, and covers the top of the junction of has poured structure and post-pouring structure, the beneficial effect of the utility model is, through with water stop adhesive tape connection in the ladder inside corner department of floor has poured structure, to fill up the gap that concrete possibly formed at each corner of ladder groove, and through the flexible sealing structure covers the top of the junction (ladder seam) of has poured structure and post-pouring structure, improves the waterproof effect of post-pouring band.
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