Oct 23 2018
18

Regular and reinforced concrete pipes

By Niletrade

These pipes are produced in Egypt, using sulfate-resistant cement, and they are produced with flexible connectors, working in slope lines for sewage water, as well as drinking water lines, and they are made using the pressure or extrusion method, and pipes with a diameter of less than 5 inches are difficult to arm.

Concrete required for piping contains 1 part cement, 1.75 parts clean sand, and 2.5 parts clean slag sand, measuring 0.5 “for pipes 20” and less, and 0.75 “for pipes over 20”.

Among its most important features:
1- It is produced up to a diameter of 300 mm and in reinforced concrete the diameters reach 3000 mm.
2- Flexible connections – which gives it a great advantage – when a soil subsidence occurs, the pipeline rearranges its positions without any breakage or crack in the pipe.
3- Less expensive than metal pipes.
4- It can be produced locally.
5- The cement weld adheres to it more than clay pipes.
Disadvantages of concrete pipes:
1- Does not bear the interaction of sewage gases and is afraid of corrosion if it is not full (sewage water).
2- Heavier than clay, cast or steel pipes.
3- The lack of quality in their manufacture in small factories.
4- It needs care in its manufacture in order to be able to conform to the standard specifications.
5- It is not easy to find out the faults of a concrete pipe without special tests.

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