Cement compound pipe with plastic inside lining

Abstract

A composite cement pipe with plastic lining used as large-diameter underground drain pipe in urban area is composed of external reinforced concrete layer and internal plastic layer. Its both ends hasthe embedding structure for jointing adjacent pipes. Its advantages are high resistance to corrosion, leakage and geologic settlement, and long service life.

Description

technical field [0001] The invention relates to an urban underground drainage pipe, in particular to a plastic-lined cement composite pipe. Background technique [0002] With the development of science and technology, the improvement of people's living standards, the process of industrialization and urbanization is getting faster and faster, the requirements for urban underground drainage pipes are getting higher and higher, and the requirements are large diameter, strong corrosion resistance and long service life. [0003] The existing large-diameter drainage pipes are mainly cement pipes, HDPE winding pipes and glass fiber reinforced plastic sand pipes. Traditional cement pipes have a short service life and are easily broken, and due to factors such as geological subsidence, the pipes will be misaligned, resulting in water leakage from the pipes. Although HDPE winding pipes and glass fiber reinforced plastic sand pipes have good performance, they are expensive and difficu...

AI Technical Summary

Problems solved by technology

Traditional cement pipes have a short service life and are easily broken, and due to factors such as geological subsidence, the pipes will be misaligned, resulting in water leakage from the pipes

Although HDPE winding pipes and glass fiber reinforced plastic sand pipes have good performance, they are expensive and not easy to promote and apply on a large scale.

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