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Cement-modified urea formaldehyde resin composite slurry material and preparation method thereof

A urea-formaldehyde resin and cement technology, which is applied in the field of composite grout material and cement-modified urea-formaldehyde resin composite grout material, can solve the problems of long initial setting time and achieve the effects of improving strength, good reinforcement effect and increasing toughness

Inactive Publication Date: 2020-01-10
KUNMING SURVEY DESIGN & RES INST OF CREEC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] An economical high-strength rapid-hardening grouting material in the prior art, the material is simple to prepare and has high strength, but the initial setting time is relatively long

Method used

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  • Cement-modified urea formaldehyde resin composite slurry material and preparation method thereof
  • Cement-modified urea formaldehyde resin composite slurry material and preparation method thereof
  • Cement-modified urea formaldehyde resin composite slurry material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The preparation method of the cement-modified urea-formaldehyde resin composite slurry material of the present embodiment is carried out as follows:

[0028] Weigh the following raw materials: 60 parts by weight of P•O32.5# ordinary Portland cement, 50 parts by weight of water, 9.4 parts by weight of modified urea-formaldehyde resin slurry, 0.4 parts by weight of polyester resin, 0.2 parts by weight of polyvinyl alcohol, Pour the above-mentioned raw materials into a mixing tank, and stir evenly to obtain a mixed slurry.

[0029] Then, measure 5 parts by volume of the configured mixed slurry and 1 part by volume of oxalic acid, slowly put them in a mixing tank, and stir evenly to obtain a cement-modified urea-formaldehyde resin mixed slurry. The concentration of oxalic acid is 16.7%.

[0030] The gel time and strength of the cement-modified urea-formaldehyde resin mixed slurry were tested, and the specific test data are shown in Table 1.

Embodiment 2

[0032] The preparation method of the cement-modified urea-formaldehyde resin composite slurry material of the present embodiment is carried out as follows:

[0033] Weigh the following raw materials: 60 parts by weight of P•O32.5# ordinary Portland cement, 40 parts by weight of water, 18.9 parts by weight of modified urea-formaldehyde resin slurry, 0.8 parts by weight of polyester resin, 0.3 parts by weight of polyvinyl alcohol, Pour the above-mentioned raw materials into a mixing tank, and stir evenly to obtain a mixed slurry.

[0034] Then, measure 5 parts by volume of the configured mixed slurry and 1 part by volume of oxalic acid, slowly put them in a mixing tank, and stir evenly to obtain a cement-modified urea-formaldehyde resin mixed slurry. The concentration of oxalic acid is 27%.

[0035] The gel time and strength of the cement-modified urea-formaldehyde resin mixed slurry were tested, and the specific test data are shown in Table 1.

Embodiment 3

[0037] The preparation method of the cement-modified urea-formaldehyde resin composite slurry material of the present embodiment is carried out as follows:

[0038] Weigh raw materials in the following proportions: 60 parts by weight of P•O32.5# ordinary Portland cement, 30 parts by weight of water, 28.3 parts by weight of modified urea-formaldehyde resin slurry, 1.2 parts by weight of polyester resin, 0.5 parts by weight of polyvinyl alcohol, Pour the above-mentioned raw materials into a mixing tank, and stir evenly to obtain a mixed slurry.

[0039] Then, measure 5 parts by volume of the configured mixed slurry and 1 part by volume of oxalic acid, slowly put them in a mixing tank, and stir evenly to obtain a cement-modified urea-formaldehyde resin mixed slurry. The concentration of oxalic acid is 20%.

[0040] The gel time and strength of the cement-modified urea-formaldehyde resin mixed slurry were tested, and the specific test data are shown in Table 1.

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Abstract

The invention provides a cement-modified urea formaldehyde resin composite slurry material and a preparation method thereof. The material comprises, by weight, 0-50 parts of water, 60 parts of cement,9.4-56.7 parts of a modified urea formaldehyde resin slurry, 0.4-2.4 parts of a polyester resin and 0.2-0.9 part of polyvinyl alcohol. The material has the characteristics of good groutability, shortgelation time, adjustable gelation time, high induration strength and the like, and can be used in the fields of linear engineering karst disease (disaster) regulation, broken stratum reinforcement and the like.

Description

technical field [0001] The invention relates to a composite grout material, in particular to a cement-modified urea-formaldehyde resin composite grout material, and a preparation method thereof, which belongs to the field of building materials. Background technique [0002] The total area of ​​karst areas in China is about 3.4×10 6 km 2 . Taking Yunnan, Guizhou, and Guangxi as the main body, it includes Sichuan, Chongqing, Hubei, and some parts of Hunan. There are many karst areas that have been built, are under construction or new linear projects pass through, and the karst problem is more prominent. Disasters caused by volcanic rock have seriously affected the safe construction and operation of linear engineering. Grouting is an important technical method to control karst diseases and reinforce broken rock mass, and the decisive factor affecting the effect of grouting is the grouting material. The most commonly used grouting material in actual engineering is cement sl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B2201/50C04B24/307C04B24/283C04B24/2623
Inventor 张蕊孙希望陈雷张贵斌石有权张大可叶文科李光慧徐涛李能王志伟聂文峰郭永发卢三平车文庆朱术云钱自卫黄震姚普
Owner KUNMING SURVEY DESIGN & RES INST OF CREEC
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