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Sleeve grouting material for steel bar connection and preparation method thereof

A sleeve grouting and steel bar technology, which is applied in the field of steel bar connection technology, can solve problems such as easy cracks, and achieve the effects of less water consumption, good fluidity, and small volume changes

Inactive Publication Date: 2020-05-26
华川建设集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] One of the objectives of the present invention is to provide a sleeve grouting material for steel bar connection, mainly to solve the problem that cracks are easily formed when the sleeve grouting material for steel bar connection is formed in the prior art

Method used

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  • Sleeve grouting material for steel bar connection and preparation method thereof
  • Sleeve grouting material for steel bar connection and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] A preparation method of sleeve grouting material for steel bar connection is as follows:

[0062] S1: 400 parts of kaolin expressed in parts by weight and 120 parts of pottery clay are mixed and crushed so that the particle size of the mixture is less than 20 μm;

[0063] S2: Add 85 parts by weight of epoxy resin rubber powder, 1.5 parts of silicone powder defoamer, 3.5 parts of polycarboxylate water reducer, 8 parts by weight to the mixture of crushed kaolin and ceramic sand The CAL fiber expansion agent is mixed with 2 parts of benzoic acid, stirred for 30 minutes to make it evenly stirred, and the product is obtained.

Embodiment 2

[0065] A preparation method of sleeve grouting material for steel bar connection is as follows:

[0066] S1: 420 parts of kaolin expressed in parts by weight and 150 parts of pottery clay are mixed and crushed so that the particle size of the mixture is less than 20 μm;

[0067] S2: Add 50 parts of epoxy resin rubber powder, 1.8 parts of silicone powder defoamer, 3 parts of polycarboxylate water reducer, 7 parts by weight to the mixture of crushed kaolin and ceramic sand The CAL fiber expansion agent is mixed with 2 parts of benzoic acid, stirred for 30 minutes to make it evenly stirred, and the product is obtained.

Embodiment 3

[0069] A preparation method of sleeve grouting material for steel bar connection is as follows:

[0070] S1: 300 parts of kaolin expressed in parts by weight and 120 parts of pottery clay are mixed and crushed so that the particle size of the mixture is less than 20 μm;

[0071] S2: Add 70 parts by weight of epoxy resin powder, 1 part of silicone powder defoamer, 5 parts of polycarboxylate water reducer, 10 parts by weight to the mixture of crushed kaolin and ceramic sand CAL fiber swelling agent is mixed with 1.2 parts of benzoic acid, stirred for 30 minutes to make it evenly stirred, and the product is obtained.

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Abstract

The invention relates to the technical field of steel bar connection processes, in particular to a sleeve grouting material for steel bar connection and a preparation method thereof. The sleeve grouting material for steel bar connection is prepared from the following components in parts by weight: 300 to 450 parts of clay, 100 to 150 parts of bone meal, 50 to 100 parts of rubber powder, 1-2 partsof a defoaming agent, 3-5 parts of a water reducing agent, 5-10 parts of an expanding agent, and 1-2 parts of an antirust agent. The sleeve grouting material for steel bar connection has the followingbeneficial effects that the sleeve grouting material for steel bar connection is powdery, easy to transport, relatively good in crack resistance, relatively small in volume change during molding, relatively good in fluidity and relatively high in applicability.

Description

technical field [0001] The invention relates to the technical field of steel bar connection technology, more specifically, it relates to a sleeve grouting material for steel bar connection. Background technique [0002] When connecting the reinforcing bars, the method of welding is usually adopted, but when connecting the reinforcing bars in this way, it is relatively laborious. At present, there is a connection method that connects the reinforcing bars through a sleeve. That is to say, the two steel bars are respectively inserted into the two ends of the sleeve, and then the sleeve is filled with the grouting material prepared with water. After the grouting material is formed, the two steel bars are connected through the sleeve, and the connection strength is relatively high. [0003] The Chinese invention patent whose notification number is CN103265253A provides a kind of grouting material, which includes 45%-55% fine sand by mass percentage, 30%-40% cement; 0.2%-1.0% poly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B111/34C04B111/70
CPCC04B28/001C04B2111/343C04B2111/70C04B2201/50C04B18/027C04B24/281C04B24/42C04B24/04C04B2103/0068C04B2103/302
Inventor 魏东吕海芳魏庆雄罗思敏
Owner 华川建设集团有限公司