Waterproof casing on the surface of shear wall, whether flexible or rigid, is limited by formwork, and its length is consistent with the thickness of shear wall. The length of the sleeve on the back wall is about 2mm longer than that on the wall, with both ends.

The pipeline passes through brick walls, concrete beams, concrete walls and other components, and pre-embedded sleeves are reserved. Suitable for civil air defense, underground engineering, chemical industry, steel, tap water, sewage treatment and other pipelines that require strict waterproofing. Generally, the pipe diameter of the embedded casing is two specifications larger than the pipe to pass through the component.

Extended data:

Precautions:

Lightning protection and grounding devices of foundation raft, such as lead-out flat steel, down lead, test point, reserved grounding steel plate, equalizing ring, side lightning protection, etc., must be concealed after acceptance by the supervisor.

The embedded pvc conduit should be heavy-duty pipe, and the joint of the pipe should be bonded by direct sleeve. The pipeline is laid between two layers of steel bars and fixed on the steel bars with tie wires.

Conduits of 32 and above should not be bent, and finished elbows with large radians should be used.

The height of conduit crossing and overlapping shall not be higher than the height of upper reinforcement.

Baidu Encyclopedia-Embedded Shell