The concrete strength grade of the concrete drainage pipe must not be lower than C30; the appearance quality of the products we produce: the internal and external appearance of the pipe should be flat, and the concrete drainage pipe should be free of various defects such as sticky skin and rough surface; Cracks, the width of the internal and external cracks shall not exceed 0.05mm; the joint shall not leak slurry.
The interface forms of concrete drainage pipes are: flat mouth, rigid groove, socket and flexible groove. The socket and the flexible port are flexible joints due to the use of a rubber ring to seal the water in the interface, which is a flexible connection, has good seismic performance, can effectively resist uneven settlement of the foundation, and is fast and popular among users. For pipes below DN1200, sockets should be used for sockets; for pipes above DN1200, flexible sockets should be used for interfaces.
The two are similar in that the underlying approach is the same. The water stop method is the same. The rubber ring seals against water and has a flexible interface. The seismic performance is the same, and the foundation can be used normally in a small range. Same pipe price