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Grouting material and preparation method thereof

A technology of grouting materials and raw materials, which is applied in the field of building materials, can solve the problems of increased viscosity of the system and deterioration of mechanical properties of grouting materials, etc., and achieve the effects of increasing fluidity, controllable curing speed, and improving brittleness

Inactive Publication Date: 2018-04-03
袁春华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention: Aiming at the current traditional polyurethane grouting materials used in coal mines, flame retardants are added to ensure safety, but the addition of flame retardants will increase the viscosity of the system, resulting in the grouting material The problem of poor mechanical properties, the invention provides a grouting material and its preparation method

Method used

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  • Grouting material and preparation method thereof

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preparation example Construction

[0026] The preparation method of grouting material of the present invention is characterized in that, this preparation method comprises the steps:

[0027] (1) In terms of parts by weight, take the raw materials of component A and component B;

[0028] (2) For the preparation of component A, put polyether polyol, maleic anhydride, and catalyst into the reaction kettle, stir at 80-85°C, then add the remaining components of component A, stir for 1-3 hours, and cool down. Collect the mixture to obtain component A;

[0029] (3) For the preparation of component B, mix isocyanate and ethylene glycol evenly to obtain component B;

[0030] (4) When using, mix components A and B at a mass ratio of 1:0.8-1.3.

Embodiment 1

[0032] The polyether polyol is trimethylolpropane polyether.

[0033] The silicone monomer is γ-chloropropyltrichlorosilane.

[0034] Added particles for Kyanite.

[0035] The surfactant is sodium lauryl sulfate.

[0036] The catalyst is ferric chloride.

[0037] A grouting material, comprising A component and B component, wherein A component contains the following raw materials in parts by weight: 60 parts of polyether polyol, 35 parts of water, 25 parts of maleic anhydride, 20 parts of silicone mono body, 11 parts of added particles, 9 parts of acrylamide, 6 parts of surfactant, and 3 parts of catalyst; component B contains the following raw materials in parts by weight: 45 parts of isocyanate and 12 parts of ethylene glycol.

[0038] The preparation method of grouting material of the present invention is characterized in that, this preparation method comprises the steps:

[0039] (1) In terms of parts by weight, take the raw materials of component A and component B;

...

Embodiment 2

[0044] The polyether polyol is any one of propylene glycol polyether and trimethylolpropane polyether.

[0045] The organosilicon monomer is any one of γ-chloropropyltrichlorosilane and vinyltrichlorosilane.

[0046] Added particles for Kyanite.

[0047] The surfactants are sodium dodecylbenzenesulfonate and sodium lauryl sulfate.

[0048] The catalyst is ferric chloride.

[0049] A grouting material, comprising A component and B component, wherein A component contains the following raw materials in parts by weight: 55 parts of polyether polyol, 32 parts of water, 22 parts of maleic anhydride, 18 parts of silicone mono body, 9 parts of added particles, 8 parts of acrylamide, 5 parts of surfactant, and 2 parts of catalyst; component B contains the following raw materials in parts by weight: 43 parts of isocyanate and 11 parts of ethylene glycol.

[0050] The preparation method of grouting material of the present invention is characterized in that, this preparation method com...

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Abstract

The invention relates to the technical field of building materials, in particular to a grouting material and a preparation method thereof. Through formula design, the present invention has controllable curing speed, low viscosity of raw material liquid, and good permeability in coal rock, and uses maleic anhydride to modify polyether polyol to increase its fluidity, and at the same time, part of organosilicon monomer is added Carry out reaction polymerization to reduce its viscosity, and add amide to increase the flexible structure, which can effectively improve the brittleness of the material and obtain high compressive strength, and then use the added particles to improve its permeability, and expand at high temperature to further improve the flame retardancy , and the reaction that occurs during grouting makes it easier to add particles to form a three-dimensional space network structure, so it has good compressive strength and improves the flame retardant performance.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a grouting material and a preparation method thereof. Background technique [0002] With the rapid development of underground tunnels, mines, hydropower stations, caverns, expressways and high-speed railways, more and more engineering geological problems are encountered, many of which require fast and effective solutions. Under such conditions, rapid solidification grouting technology is an effective way to control roadway surrounding rock and treat cracks in concrete and expressways. [0003] The grouting material refers to the main substance that fills and consolidates the fractures and pores in the formation, and it is the key to realize the water blocking or reinforcement effect. Traditional grouting materials can be divided into granular grout, chemical grout and fine mineral grout. In order to achieve the purpose of strengthening the coal and rock mass and prev...

Claims

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Application Information

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IPC IPC(8): C08G18/38C08G18/48C08G18/66C08G18/67
CPCC08G18/4829C08G18/3893C08G18/4825C08G18/6674C08G18/6795
Inventor 袁春华刘芳刘沁
Owner 袁春华