Specification of concrete drainage pipe

Specification for concrete drainage pipes (standard for infrastructure necessary for building drainage system)

What is a concrete drain pipe?

Concrete drainage pipe is a kind of infrastructure of building drainage system, which is mainly used to discharge sewage and rainwater inside the building to ensure the environmental sanitation and safety inside the building. Concrete drainage pipes are usually made of cement, sand, stone and water, which have the characteristics of durability, impact resistance, corrosion resistance and high bearing capacity.

Specification of concrete drainage pipe

The specifications of concrete drainage pipes are usually determined according to the diameter and wall thickness of the pipes. In the building drainage system, the commonly used specifications of concrete drainage pipes are DN200, DN300, DN400, DN500, DN600 and so on. , where DN represents the diameter of the pipe. The wall thickness is determined according to the service environment and bearing capacity of the pipeline, and is generally 8mm, 10mm, 12mm, 15mm, etc.

Installation steps of concrete drainage pipe

The installation steps of the concrete drain pipe are as follows:

1. Determine the position and direction of the drainage pipeline, and mark the starting point and ending point of the pipeline.

2. When excavating the pipe trench, the depth and width of the pipe trench should be determined according to the specifications and wall thickness of the pipeline, which is generally about 1.5 times of the diameter of the pipeline.

3. Spread a layer of mortar at the bottom of the ditch to ensure the stability and drainage effect of the pipeline.

4. Place the concrete drainage pipe in the groove, and the connection methods of the pipe include rubber seal, cement slurry seal and lap seal.

5. Apply cement slurry or rubber sealing ring to the joint of the pipeline to ensure the tightness of the joint.

6. Fill mortar around the pipeline and compact it to ensure the stability and drainage effect of the pipeline.

7. Cover the top of the pipeline with a layer of waterproof material to prevent groundwater from infiltrating into the pipeline.

8. Carry out pressure test and cleaning on the pipeline to ensure the pipeline quality and drainage effect.