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A roadway spray material and preparation method thereof

A technology of spraying material and roadway, which is applied in the field of preparation of roadway spraying material, can solve the problems of large amount of concrete rebound, serious environmental pollution, long gelation time, etc., to improve speed and quality, improve working environment, good economic benefits and The effect of social benefits

Active Publication Date: 2019-06-18
密尔特新材料江苏有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The concrete spraying process adopted by the existing roadway thin spraying, the mixed concrete is sprayed to the construction surface with a special spraying equipment to a thickness of not less than 4 cm, and the amount per square meter is about 140 kg. During the spraying process, the amount of concrete rebound is large, and the environmental pollution is serious. Low construction efficiency, shear resistance, tensile resistance, compression resistance and poor adhesion, long gelation time and other shortcomings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The invention discloses a roadway spraying material. The composition of the spraying material includes: white cement, quartz powder, titanium dioxide, polymer xanthan gum powder, adhesive and thixotropic agent, and their weight percentage is: 50:80 :9:33:14:14.

[0020] A kind of preparation method of roadway spraying material, described spraying material raw material is prepared by weight percentage each time with 5t product as base, mainly comprises the following steps:

[0021] 1) The polymer xanthan gum powder and the thixotropic agent with a weight percentage of 33:14 were added into a 2t automatic dry powder mixer with a power of 2.5KW and stirred for 5 minutes;

[0022] 2) Stop for 5 minutes after step 1) is completed, then add an adhesive with a weight percentage of 1:1 to the thixotropic agent into the feed port of a 2t automatic dry powder mixer with a power of 2.5KW and continue stirring for 5 minutes;

[0023] 3) At the same time, add white cement, quartz p...

Embodiment 2

[0028] A kind of preparation method of roadway spraying material, described spraying material raw material is prepared by weight percentage each time with 5t product as base, mainly comprises the following steps:

[0029] 1) Add 825Kg of polymer xanthan gum powder and 350Kg of anti-settling thixotropic agent 6650R into a 2t automatic dry powder mixer with a power of 2.5KW and stir for 5 minutes;

[0030] 2) Stop for 5 minutes after step 1) is completed, then add 350Kg of redispersible latex powder XY-6010 to the feeding port of a 2t automatic dry powder mixer with a power of 2.5KW and continue stirring for 5 minutes;

[0031] 3) At the same time, add 1250Kg of white cement, 2000Kg of quartz powder and 225Kg of titanium dioxide into a 6t automatic dry powder mixer with a power of 5.5KW and stir for 15 minutes;

[0032] 4) Add the mixed material stirred in step 2) into the 6t fully automatic dry powder mixer in step 3) and stir for another 15 minutes;

[0033] 5) Stop for 10 mi...

Embodiment 3

[0036] The construction site needs to have 0.6Mpa to 1.0MPa compressed air and tap water; the construction equipment for spraying materials is two 100L mixing barrels, one 10L plastic measuring cylinder, one ER50 pneumatic mixing gun, and one set of HY80L pressure spray tank (with safety valve, pressure regulating valve, etc.), one HYZ1.0 automatic air pressure long spray gun, one HYD1.0 automatic air pressure short gun, air pipes, joints, etc., and the staffing is 4 people;

[0037] The specific steps of the roadway spraying construction method are as follows:

[0038] Firstly, connect all the pneumatic tools firmly with the on-site air source. Secondly, pour 30L tap water into a 100L mixing tank with a 10L plastic measuring cylinder, then add a bag of 15Kg spray material, and then stir with an ER50 pneumatic mixing gun. Control the stirring at 300-500rpm for 5 minutes, then control the speed at 1500-2000rpm and stir for 10 minutes, pour the stirred slurry into the HY80L pres...

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PUM

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Abstract

The invention discloses a roadway spraying material and a preparation method thereof. The spraying material comprises the following components: white cement, quartz powder, titanium dioxide, macromolecular xanthan gum powder, an adhesive and a thixotropic agent, wherein the weight percentage ratio is 50:80:9:33:14:14. The invention discloses a preparation method and a use method of the roadway spraying material. The novel material is combined with a novel slurry spraying technology, so that the slurry spraying speed and quality are greatly improved, the working environment is improved, the cost is reduced and good economic benefit and social benefit are achieved.

Description

technical field [0001] The invention relates to coal mine roadway support technology, in particular to a method for preparing and using roadway spray material. Background technique [0002] Shotcrete is a kind of concrete whose raw materials are the same as ordinary concrete but with special construction technology. Shotcrete is to mix cement, sand and stone according to a certain proportion, then send it into the concrete sprayer, press the dry mixture to the nozzle with compressed air, add water to the water ring of the nozzle, and spray it at high speed A support form and construction method that acts as a support to the surface of the surrounding rock of the roadway. In the mine shaft and roadway, the shotcrete support combined with the bolt support is used to replace the original stone masonry and concrete lining, and obvious results have been achieved. [0003] The concrete spraying process adopted by the existing roadway thin spraying, the mixed concrete is sprayed ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B2111/00155C04B2111/00724C04B14/06C04B14/305C04B24/38C04B2103/0057C04B2103/0068
Inventor 梁晓盈潘一鸣
Owner 密尔特新材料江苏有限公司