Reinforced plastic mortar pipe with improved mortar layer

A technology of sand inclusion and sand inclusion layer in glass fiber reinforced plastics, which is applied in the direction of pipes, rigid pipes, pipes/pipe joints/fittings, etc. It can solve the problems of increasing the production cost of pipes, poor quartz sand gradation, and increasing the amount of resin used, etc., to achieve Improved binder performance, high modulus, and reduced resin usage

Inactive Publication Date: 2014-05-14
浙江新世管道股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the unstable supply of raw materials, it is difficult to control the mixing and grading process of quartz sand, resulting in poor gradation of quartz sand with different particle sizes, which requires increasing the amount of resin used to meet the strength requirements, thereby increasing the production cost of pipelines

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The technical solutions of the present invention will be further described below in conjunction with specific embodiments.

[0018] According to the experiment, under the traditional ratio (1), (2)

[0019] (1) 15 parts of resin mixture: (resin: 100 parts)

[0020] 85 parts of quartz sand: 20-40 mesh

[0021] Pipe compression strength: 45Mpa

[0022] (2) 25 parts of resin mixture: (resin: 100 parts)

[0023] 75 parts of quartz sand: 20-40 mesh

[0024] Pipe compression strength: 68Mpa

[0025] According to the improved solution of the present invention, the compression strength detection data is as follows:

[0026] (3) 15 parts of resin mixture: (resin: 100 parts, ?EMG-200 type ground fiber: 1 part)

[0027] 85 parts of quartz sand: 20-40 mesh

[0028] Compression strength: 62Mpa

[0029] (4) 15 parts of resin mixture: (resin: 100 parts, ?EMG-200 type ground fiber: 5 parts)

[0030] 85 parts of quartz sand: 20-40 mesh

[0031] Compression strength: 68Mpa

[...

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Abstract

The invention relates to a reinforced plastic mortar pipe with an improved mortar layer. The reinforced plastic mortar pipe comprises the mortar layer consisting of quartz sand and resin, and is characterized in that: the resin is a resin mixture comprising milled glass fibers or whiskers; the weight ratio of the resin to the milled glass fibers or whiskers in the resin mixture is 100:(1-5); and the milled glass fibers have the length-to-diameter ratio of more than 10, and are preferably alkali-free milled glass fibers. The reinforced plastic mortar pipe with the improved mortar layer has the advantages that: the milled glass fibers or whiskers are mixed with the resin, and the mechanical strength of short fibers is equal to the strength of forces between adjacent atoms, so the resin mixture has a highly-oriented structure, strong strength, high modulus, high elongation and electrical, optical, magnetic, dielectric, conducting and superconducting properties, the performance of a resin mixture adhesive is improved, bonding strength between the resin mixture and the quartz sand is strengthened, the using amount of the resin is decreased, and cost is decreased.

Description

technical field [0001] The invention relates to a glass-steel sand-inclusion pipeline, in particular to a glass-steel sand-inclusion pipeline in which the sand-inclusion layer containing quartz sand and resin is improved. Background technique [0002] At present, the sand layer of FRP pipe with sand inclusion is resin mortar layer (a mixture of quartz sand and resin). The function of this layer is to transfer the force of the inner and outer layers of FRP pipe, improve the rigidity of the pipe, and ensure a certain shear strength of the pipe. , to avoid delamination during product flexural performance testing. [0003] Due to the experimental method of shear strength measurement, it is generally characterized by measuring the compressive strength of resin mortar, and the general requirement is not less than 60Mpa. The compressive strength depends mainly on the resin content and the gradation of the quartz sand. If the gradation of the quartz sand is good (that is, the part...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L9/14
Inventor 王磊叶进峰刘强
Owner 浙江新世管道股份有限公司
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