Glass fibre reinforced plastics concrete composite pipeline and method for producing the same

Abstract

The invention relates to a complex pipeline of glass-steel concrete and a preparation method thereof. The complex pipeline of glass-steel concrete includes a concrete layer. The inner wall of the concrete layer is provided with an internal glass-steel layer and the outer wall of the concrete layer is provided with an external glass-steel layer made by winding process. The external glass-steel layer comprises a plurality of hoop fibre winding layers or a plurality of hoop fibre winding layers and crossed fibre winding layers or a plurality of hoop fibre winding layers and axial fibre winding layers. The preparation method of the complex pipe of the glass-steel concrete includes: making the internal glass-steel layer; making the concrete layer tightly combined with the internal glass-steel layer on the outer wall of the internal glass-steel layer; making the external glass-steel layer on the outer wall of the concrete layer by the winding process. The complex pipeline of glass-steel concrete of the invention has the advantages of good mechanical property, high erosion resistance, low flow resistance and low manufacture cost.

Description

technical field [0001] The invention relates to a concrete pipe for water supply and drainage systems and a preparation method thereof, in particular to a glass reinforced concrete composite pipe and a preparation method thereof. Background technique [0002] At present, the pipes used in urban water supply and drainage systems are mainly concrete pipes, which have the advantages of low cost and easy production, but also have disadvantages such as weak resistance to penetration, poor corrosion resistance, low strength of the pipe body, and large friction coefficient of the inner wall of the pipe. Lifespan is greatly affected. Although glass steel pipes can well solve the above-mentioned technical problems, they are difficult to popularize and apply due to the high production cost of glass steel pipes. [0003] In order to improve the poor corrosion resistance of concrete pipes, the prior art proposes a technical solution for coating the inner wall of concrete pipes with a g...

AI Technical Summary

Problems solved by technology

In the above-mentioned traditional production process, the FRP layer is pasted manually or semi-mechanized, and the fiber and resin are divided into pieces and layered. Therefore, the FRP layer can only function as an anti-corrosion layer, and the strength of the pipeline still needs to be determined by the steel bars in the concrete layer, etc. Enhanced structural assurance, requiring thicker concrete layers

In addition, the production process is difficult to process, the production cycle is long, the quality of the FRP coating is difficult to guarantee, and the inner wall is rough and the friction coefficient is large.

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