Research on bonding performance of steel-polyvinyl alcohol hybrid fiber reinforced ECC and FRP ribs

A technology of polyethylene fiber and polyvinyl alcohol, which is applied in the field of building materials, can solve the problems of large shrinkage, hollowing in the gap, and loose connection of board seams, etc., and achieves good bond strength and compressive strength, and bond strength and Higher compressive strength, better water retention and adhesion

Pending Publication Date: 2021-06-18
WUHAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0002] The current ordinary concrete has a large shrinkage, which is prone to shrinkage cracks, and the moisture in the gaps is easily absorbed quickly, resulting in hollowing and cracking in the gaps, resulting in loose joints between the boards, affecting its sound insulation and impermeability performance, making it difficult to Meet the requirements of the project

Method used

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  • Research on bonding performance of steel-polyvinyl alcohol hybrid fiber reinforced ECC and FRP ribs

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specific Embodiment 1

[0020] Specific embodiment one, please refer to figure 1 .

[0021] The invention provides a technical solution:

[0022] Research on the bonding properties of steel-polyvinyl alcohol hybrid fiber reinforced ECC and FRP bars, the required material components are:

[0023] Sulphoaluminate cement, quartz sand, redispersible latex powder, hydroxyethyl methyl cellulose ether, wood fiber, starch ether, polyethylene fiber reinforced ECC and steel powder, wherein the weight of each component is sulphoaluminate 28 parts of cement, 56 parts of quartz sand, 16 parts of steel powder, 2.1 parts of redispersible latex powder, 0.3 parts of polyethylene fiber reinforced ECC, 0.3 parts of wood fiber, 0.2 parts of hydroxyethyl methyl cellulose ether, starch ether 0.03 copies;

[0024] The specific steps of the research are as follows:

[0025] Step 1, the weight of each component is 28 parts of sulfoaluminate cement, 56 parts of quartz sand, 16 parts of steel powder, 2.1 parts of redispers...

specific Embodiment 2

[0031] Specific embodiment two, please refer to figure 1 .

[0032] The invention provides a technical solution:

[0033] Research on the bonding properties of steel-polyvinyl alcohol hybrid fiber reinforced ECC and FRP bars, the required material components are:

[0034] The components required for it are:

[0035] Sulphoaluminate cement, quartz sand, redispersible latex powder, hydroxyethyl methyl cellulose ether, wood fiber, starch ether, polyethylene fiber reinforced ECC and steel powder, wherein the weight of each component is sulphoaluminate 32 parts of cement, 48 parts of quartz sand, 20 parts of steel powder, 1.6 parts of redispersible latex powder, 0.2 parts of polyethylene fiber reinforced ECC, 0.1 part of wood fiber, 0.1 part of hydroxyethyl methyl cellulose ether, starch ether 0.07 copies;

[0036] The specific steps of the research are as follows:

[0037] Step 1, the weight of each component is 32 parts of sulfoaluminate cement, 48 parts of quartz sand, 20 p...

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Abstract

The invention discloses research on bonding performance of steel-polyvinyl alcohol hybrid fiber reinforced ECC and FRP ribs. The research comprises 1) preparing the following components in parts by weight: 26 to 32 parts of sulphoaluminate cement, 50 to 56 parts of quartz sand, 16 to 20 parts of steel powder, 1.6 to 2.1 parts of redispersible latex powder, 0.2 to 0.3 part of polyethylene fiber reinforced ECC, 0.1 to 0.3 part of wood fibers, 0.1 to 0.2 part of hydroxyethyl methyl cellulose ether and 0.03 to 0.07 part of starch ether; 2) adding the quartz sand and the steel powder into a mixture of the FRP ribs and the polyethylene fiber reinforced ECC coral concrete; 3), adding the mixture obtained in the step 2 into the sulphoaluminate cement; 4), adding the mixture obtained in the step 3 into the redispersible latex powder, the hydroxyethyl methyl cellulose ether, the wood fibers, the starch ether and the polyethylene fiber reinforced ECC; and 5), uniformly stirring the mixture obtained in the step 4 for more than five minutes, and then standing for 5-7 minutes.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to the performance research on the bonding of steel-polyvinyl alcohol hybrid fiber reinforced ECC and FRP bars. Background technique [0002] The current ordinary concrete has a large shrinkage, which is prone to shrinkage cracks, and the moisture in the gaps is easily absorbed quickly, resulting in hollowing and cracking in the gaps, resulting in loose joints between the boards, affecting its sound insulation and impermeability performance, making it difficult to Meet the requirements of the project. In order to solve the above-mentioned problems, the present invention designs the performance research on the bonding of steel-polyvinyl alcohol hybrid fiber reinforced ECC and FRP bars. Contents of the invention [0003] The purpose of the present invention is to solve the problem that the current ordinary concrete has large shrinkage and shrinkage cracks are easy to occ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/06
CPCC04B28/06C04B2201/50C04B14/06C04B2103/0057C04B24/383C04B16/02C04B24/38C04B14/34C04B40/0039Y02A30/30
Inventor 颜斌
Owner WUHAN UNIV OF SCI & TECH
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