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High polymer grouting reinforcement material

A technology of grouting reinforcement and polymer, which is applied in the field of broken rock mass reinforcement materials in underground engineering, can solve the problems of difficult control of foaming, uneven foam, high reaction heat, etc., to reduce the possibility of smoldering and explosion, and reduce the The effect of low calorie and simple preparation method

Inactive Publication Date: 2017-03-15
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the problems of high foaming ratio, uneven foam, difficult control of foaming and high heat of reaction of existing polyurethane grouting reinforcement materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Prepare the polymer grouting reinforcement material according to the following ratio:

[0036] A component:

[0037]

[0038] B component:

[0039]

[0040]

[0041] The components of component A and component B become two homogeneous liquids after being mixed and stirred. When using, component A and component B are mixed and poured to the position to be reinforced by a double-liquid pump at a volume ratio of 1:1. .

Embodiment 2

[0043] Prepare the polymer grouting reinforcement material according to the following ratio:

[0044] A component:

[0045]

[0046] B component:

[0047]

[0048] The components of component A and component B become two homogeneous liquids after being mixed and stirred. When in use, component A and component B are mixed and poured to the position to be reinforced by a double-liquid pump at a volume ratio of 1:1. .

Embodiment 3

[0050] Prepare the polymer grouting reinforcement material according to the following ratio:

[0051] A component:

[0052]

[0053]

[0054] B component:

[0055]

[0056] The components of component A and component B become two homogeneous liquids after being mixed and stirred. When in use, component A and component B are mixed and poured to the position to be reinforced by a double-liquid pump at a volume ratio of 1:1. .

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Abstract

The invention discloses a high polymer grouting reinforcement material which comprises a component A and a component B. The component A comprises 100-120 parts of isocyanate, 3-5 parts of plasticizers, 0.5-1.5 parts of glycerol and 0.4-1.0 part of foam stabilizers. The component B comprises 60-70 parts of polymer polyol, 25-45 parts of inert diluents, 20-30 parts of flame retardants and 0.5-1.0 part of catalysts. The high polymer grouting reinforcement material is high in curing reaction speed, adjustable in curing time and low in curing reaction heat release, the possibility of smoldering and explosion of cured coal and rock masses can be greatly reduced when the high polymer grouting reinforcement material is applied to coal mine grouting reinforcement, foaming rate is low, foam is uniformly distributed, solids can reach 45-60MPa, engineering construction requirements are completely met, and engineering safety is guaranteed. Preparation steps are simple, operation is facilitated, and practicability is high.

Description

technical field [0001] The invention belongs to the field of reinforcement materials for broken rock mass in underground engineering, and in particular relates to a polymer grouting reinforcement material. Background technique [0002] When a fractured rock mass is encountered during the construction of an underground project, grouting reinforcement is often used to deal with it, so as to ensure the construction safety of the underground project. Polyurethane grouting reinforcement materials are widely used in the reinforcement of broken rock masses in underground engineering due to their advantages of "high strength, good sealing, light weight, and stable chemical properties", but the existing polyurethane grouting reinforcement materials still have relatively large disadvantages , its application is limited to a certain extent, and its main disadvantages are as follows: ① Once open water is encountered in the construction process of existing polyurethane grouting reinforce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/76C08G18/66C08G18/58C08G18/48C08G18/42C08G18/36C08G18/32C08K5/12C08K5/136C08K5/5333
CPCC08G18/7671C08G18/58C08G18/6629C08G18/6662C08G18/6696C08G18/7664C08K5/12C08K5/136C08K5/5333
Inventor 李树忱梁娜赵世森张哲邓振全戴洪伟朱林陈健
Owner SHANDONG UNIV
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