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Common internal and external diameter problems of cement pipes

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更新时间:2018年11月08日12:33:41 打印此页 关闭 Hits: 1262 Updated: November 8, 2018 12:33:41 Print this page Close

DN400 outer diameter 480
500 outer diameter 600
There are two types of 600 outer diameter
800 outer diameter 940
1000 outer diameter 1160


What is the compressive strength of the primary drainage pipe? What is the concrete strength grade used?


The concrete drainage pipe is divided into one and two stages. The compressive strength of the first-stage drainage pipe is that the internal water pressure is 0.02 MPa, and the specifications of the compressive strength (outer diameter * wall thickness) are different. Unit) Does not damage under various pressure conditions;
The strength of the concrete used is not lower than C30.
Drain pipe: production of reinforced concrete drainage pipe equipment: mixing system, pipe mold (flat mouth, groove, socket, double socket, steel socket), molding equipment (centrifuge, suspension roll machine, vertical axial kneading molding machine , Vertical radial kneading machine, core mold oscillating hydraulic forming machine, vertical radial kneading machine, core mold oscillating hydraulic forming machine, oscillating forming equipment), feeder, steel plate skeleton roll welding machine, hydraulic press , External press, etc. Drain pipes are divided into concrete pipes (CP) and reinforced concrete pipes (RCP). Drain pipe specifications include pipe inner diameter DO (100mm-3000mm), length LO (30mm-200mm), pressure index, grade Ⅰ, grade Ⅱ, and grade Ⅲ caliber are divided into: flat mouth, enterprise mouth, socket socket, double socket, steel socket.


What is the bearing capacity of the cement pipe drainage pipe? How to calculate?


The cement drainage pipe has requirements for its crack load and damage load. How to calculate and experiment see specifications
GB / T 11836-2009 "Concrete and reinforced concrete drainage pipes"
GB / T 16752-2006 "Experimental methods for concrete and reinforced concrete drainage pipes"
It's very specific.

 

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