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Mixed fiber concrete pipe

A technology of mixing fiber and concrete pipes, which is applied in the direction of pipes, rigid pipes, pipes/pipe joints/fittings, etc., which can solve the problems of rising pipe costs and reducing enterprise profit margins, and achieve total project cost saving, light weight and lightening effect of weight

Inactive Publication Date: 2009-12-02
TIANJIN WATERLINE PIPELINE ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the steel skeleton can improve the mechanical properties of the pipe, but with the increasing price of steel, the cost of the pipe continues to rise, which greatly reduces the profit margin of the enterprise

Method used

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  • Mixed fiber concrete pipe
  • Mixed fiber concrete pipe

Examples

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Comparison scheme
Effect test

Embodiment 1

[0026] A mixed fiber concrete pipe 1, whose overall structure is composed of a pipe 2 and a socket 3 and a socket 1 coaxially formed at its two ends respectively. The pipe is made by mixing cement, water, sand and stones in accordance with the strength ratio of concrete, adding modified polypropylene fiber and steel fiber and continuing to stir evenly. The length of the modified polypropylene fiber is 15mm, and the diameter of the modified polypropylene fiber is 0.8×10 6 μm, the length of the steel fiber is 60mm, and the diameter of the steel fiber is 1.2mm. The components and weights of the mixed fiber concrete pipe constituting the pipe are respectively:

[0027] Cement 322Kg;

[0028] Water 140Kg;

[0029] Sand 475Kg;

[0030] Stone 864Kg;

[0031] Modified polypropylene fiber 7Kg;

[0032] Steel fiber 20Kg.

Embodiment 2

[0034] A mixed fiber concrete pipe, adding polypropylene fiber and steel fiber to the concrete, the length of the polypropylene fiber is 3mm, and the diameter of the polypropylene fiber is 18μm; the length of the steel fiber is 15mm, and the diameter of the steel fiber is 0.3mm. The components and weight of the polypropylene fiber concrete pipe of the pipe are respectively:

[0035] Cement 540Kg;

[0036] Water 220Kg;

[0037] Sand 828Kg;

[0038] Stone 1306Kg;

[0039] Polypropylene fiber 1Kg;

[0040] Steel fiber 140Kg.

[0041] Others are the same as in Example 1.

Embodiment 3

[0043] A mixed fiber concrete pipe, adding modified polypropylene fiber and steel fiber to the concrete, the length of the modified polypropylene fiber is 58mm, and the diameter of the modified polypropylene fiber is 0.2×10 6 μm; the length of the steel fiber is 40mm, and the diameter of the steel fiber is 0.6mm. The components and weights of the modified polypropylene fiber concrete pipe constituting the pipe are respectively:

[0044] Cement 431Kg;

[0045] Water 180Kg;

[0046] Sand 650Kg;

[0047] Stone 1100Kg;

[0048] Modified polypropylene fiber 15Kg;

[0049] Steel fiber 80Kg.

[0050] The interface form of the mixed fiber concrete pipe can be tongue and groove, flat mouth, socket or steel socket.

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Abstract

The invention relates to a mixed fiber concrete pipe, wherein mixed fiber concrete for forming the pipe comprises the following components according to the parts by weight: 322-540 parts of cement, 140-220 parts of water, 475-828 parts of sand, 864-1,306 parts of cobbles, 0.2-20 parts of polymer fibers and 20-140 parts of steel fibers. The mixed fiber concrete pipe has low raw material cost, light weight, high tensile strength, flexural strength, shearing strength and torsional strength, better durability and fatigue resistance, stronger capacities of shock resistance, abrasion resistance and cavitation resistance and better crack resistance, conforms to an energy saving and emission reduction policy and is a renewal product of the existing concrete pipes.

Description

technical field [0001] The invention belongs to the field of concrete pipes, in particular to a mixed fiber concrete pipe. Background technique [0002] The concrete pipes used in the field of water supply and drainage mainly include flat mouth, tongue and groove, socket and steel socket according to their interface types. According to the above-mentioned classification of large-diameter concrete drainage pipes, the pipe wall material is concrete, and the pipe wall is relatively thick, resulting in a large weight of the pipe itself, which is very difficult to hoist, transport and install, and the cost is high; Embedded with a steel skeleton composed of circumferential steel bars and longitudinal steel bars, the main function of the steel skeleton is to increase the overall stability of the concrete pipe to a certain extent, and improve the ability of the concrete pipe wall to resist external pressure loads and internal water pressure. Although the steel skeleton can improve...

Claims

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Application Information

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IPC IPC(8): F16L9/08F16L9/14
CPCC04B2111/2038C04B2111/40C04B28/02
Inventor 赵斌张亮
Owner TIANJIN WATERLINE PIPELINE ENG CO LTD
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