Prestressed concrete glass reinforced plastic composite pipe and preparation method thereof

A glass fiber reinforced plastic, prestressed technology, applied in the direction of pipes, rigid pipes, mechanical equipment, etc., can solve the problems of high roughness coefficient of concrete inner wall, poor concrete crack resistance, influence of pipeline flow, etc., to achieve excellent hydraulic performance, good hydraulic performance, Long service life effect

Inactive Publication Date: 2011-05-11
WUHAN UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, steel is easy to corrode, which may cause leakage and damage to the pipe; in addition, the crack resistance of concrete is poor, and the roughness coefficient of the inner wall of the concrete is high, which has a certain impact on the flow of the pipe

Method used

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  • Prestressed concrete glass reinforced plastic composite pipe and preparation method thereof
  • Prestressed concrete glass reinforced plastic composite pipe and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] When the prestressed concrete fiberglass composite pipe provided by the present invention is manufactured,

[0024] The first step is to use the winding process to make the FRP lining layer 2 on the cylindrical inner mold, and then wind the FRP structure layer 3 on the FRP lining layer 2. The right end of the FRP structure layer 3 is the socket 8, and the left end is the socket 9 , and coat resin quartz sand particles on the outer wall of the FRP structure layer 3 except for the socket 9 to form a transition layer 4;

[0025] In the second step, after the FRP structure layer 3 is solidified, the inner mold is removed, and the outer mold is placed on the outer mold; a pipe ring cavity is formed between the transition layer 4 and the outer mold, and ordinary concrete is poured in this cavity, and vertical vibration is adopted. Or horizontal centrifugal pouring process to form concrete structure layer 5;

[0026] The third step takes off the outer mold, and winds the pres...

Embodiment 2

[0030] When the prestressed concrete fiberglass composite pipe provided by the present invention is manufactured,

[0031] The first step is to use the winding process to make the FRP lining layer 2 on the cylindrical inner mold, and then wind the FRP structure layer 3 on the FRP lining layer 2. The right end of the FRP structure layer 3 is the socket 8, and the left end is the socket 9 , and coat resin quartz sand particles on the outer wall of the FRP structure layer 3 except for the socket 9 to form a transition layer 4;

[0032] In the second step, when the FRP structure layer 3 is solidified, the inner mold is removed, and the outer mold is placed on the outer mold; a pipe ring cavity is formed between the transition layer 4 and the outer mold, and ordinary concrete is poured in this cavity, and vertical vibration is adopted. Or a horizontal centrifugal pouring process to form a concrete structure layer 5, and place glass reinforcement cages in the concrete structure laye...

Embodiment 3

[0037] When the prestressed concrete fiberglass composite pipe provided by the present invention is manufactured,

[0038]The first step is to use the winding process to make the FRP lining layer 2 on the cylindrical inner mold, and then wind the FRP structure layer 3 on the FRP lining layer 2. The right end of the FRP structure layer 3 is the socket 8, and the left end is the socket 9 ;

[0039] The second step is to take off the inner mold after the glass fiber reinforced plastic structure layer 3 is solidified, and put the outer mold on its outer jacket; a pipe ring cavity is formed between the glass fiber reinforced plastic structure layer 3 and the outer mold, and resin concrete is poured in this cavity, and the vertical mold is adopted. Vibration or horizontal centrifugal pouring process to form concrete structure layer 5;

[0040] The third step takes off the outer mold, and winds the prestressed glass reinforcement outside the concrete structure layer 5 to form the pr...

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Abstract

The invention belongs to the technical field of water supply and drainage pipelines, and discloses a prestressed concrete glass reinforced plastic composite pipe and a preparation method thereof. The composite pipe is mainly technically characterized by comprising a pipe body, wherein the pipe body consists of a glass reinforced plastic lining layer, a glass reinforced plastic structural layer, a transition layer, a concrete structural layer, a glass reinforced plastic rib winding layer and an outer protective layer from inside to outside; the right ends of the glass reinforced plastic lining layer and the glass reinforced plastic structural layer are provided with sockets, and the left ends of the glass reinforced plastic lining layer and the glass reinforced plastic structural layer are provided with spigots; the outer wall of the glass reinforced plastic structural layer is coated with resin quartz sand granules except the spigot part to form the transition layer; the outer wall of the transition layer is cast with the concrete structural layer; the outer wall of the concrete structural layer is wound with the glass reinforced plastic rib winding layer; and the outer wall of the glass reinforced plastic rib winding layer is provided with the outer protective layer. The prestressed concrete glass reinforced plastic composite pipe has the characteristics of high rigidity, and good strength, corrosion resistance and hydraulic performance.

Description

technical field [0001] The invention belongs to the technical field of water supply and drainage pipes, in particular to a prestressed concrete fiberglass composite pipe and a preparation method thereof. Background technique [0002] Steel bars, steel wires, steel plates, and concrete are traditional materials for making pipes. The pipes produced have the characteristics of high rigidity, high strength, and relatively low cost. However, steel is easy to corrode, which may cause leakage and damage to the pipe; in addition, the crack resistance of concrete is poor, and the roughness coefficient of the inner wall of the concrete is high, which has a certain impact on the flow of the pipe. Contents of the invention [0003] The first technical problem to be solved by the present invention is to provide a prestressed concrete fiberglass composite pipe with high rigidity, good strength, good corrosion resistance, good hydraulic performance and low cost. [0004] The second tech...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L9/16F16L25/10F16L9/14
Inventor 李卓球宋建国陈建中朱四荣曾爱军
Owner WUHAN UNIV OF TECH
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