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Static breaking anti-punching material, preparation method and use method thereof

A technology for static crushing and porous materials, which is used in the field of engineering blasting to achieve the effect of reducing the reaction speed

Active Publication Date: 2015-12-09
HENAN INST OF ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of static crushing construction, punching is an accident that is prone to occur.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] The static broken anti-punching material of the present embodiment is made of the following raw materials in parts by weight: sulfoaluminate cement 40Kg, citric acid 0.1Kg, gypsum 25Kg, lime 20Kg, sodium hydroxide 2Kg, ammonium nitrate 5Kg.

[0013] The preparation method of the static crushing anti-punching material of this embodiment is as follows: firstly, grind the sulphoaluminate cement of the formula to 350-400m 2 / Kg and mix with citric acid; then grind the lime and gypsum to 350~400m 2 / Kg, then mixed with sulfoaluminate cement, citric acid, sodium hydroxide and ammonium nitrate (ammonium nitrate is commercially available, such as agricultural fertilizer ammonium nitrate can be used without further processing), weighed and bagged , moisture-proof storage can be.

[0014] The method of using the static crushing anti-punching material of this embodiment, first grinds the sulphoaluminate cement of the formulation amount to 350-400m 2 / kg and mix with citric acid...

Embodiment 2

[0016] The static crushing anti-punching material of the present embodiment is made of the following raw materials: 35Kg of sulfoaluminate cement, 0.15Kg of citric acid, 20Kg of gypsum, 25Kg of lime, 1Kg of sodium hydroxide, and 15Kg of urea.

[0017] The preparation method of the static crushing anti-punching material of the present embodiment, the steps are as follows: first, the sulphoaluminate cement is ground to 350m 2 / kg and mixed with citric acid; then lime and gypsum were ground to 350m 2 / kg, then mixed with sulfoaluminate cement, citric acid, sodium hydroxide and ammonium nitrate (ammonium nitrate is commercially available, such as agricultural chemical fertilizer ammonium nitrate can be used without further processing), weighed and bagged , moisture-proof storage; when in use, the static crushing anti-punching material and water are mixed and stirred evenly at a mass ratio of 1:0.8, and then injected into the hole. The borehole wall generates positive pressure to ...

Embodiment 3

[0019] The static crushing anti-punching material of the present embodiment is made of the following raw materials: 45Kg of sulphoaluminate cement, 0.05Kg of citric acid, 35Kg of gypsum, 10Kg of lime, 3Kg of sodium hydroxide, and 1Kg of ammonium nitrate.

[0020] The preparation method of the static crushing anti-punching material of the present embodiment, the steps are as follows: first, the sulphoaluminate cement is ground to 400m 2 / kg and mixed with citric acid; then lime and gypsum were ground to 400m 2 / kg, then mixed with sulfoaluminate cement, citric acid, sodium hydroxide and ammonium nitrate (ammonium nitrate is commercially available, such as agricultural chemical fertilizer ammonium nitrate can be used without further processing), weighed and bagged , moisture-proof storage; when in use, the static crushing anti-punching material and water are mixed and stirred evenly at a mass ratio of 1:1, and then injected into the hole. The borehole wall generates positive pr...

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PUM

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Abstract

The present invention discloses a static breaking anti-punching material, which is prepared from the following raw materials by weight: 35-45 parts of sulphoaluminate cement, 0.05-0.15 part of citric acid, 20-35 parts of gypsum, 10-25 parts of lime, 1-3 parts of sodium hydroxide, and 1-15 parts of ammonium nitrate. The preparation method comprises: grinding the sulphoaluminate cement to achieve 350-400 m<2> / k, uniformly mixing the grinded sulphoaluminate cement and the citric acid, respectively grinding the lime and the gypsum to achieve 350-400 m<2> / kg, and uniformly mixing the sulphoaluminate cement, the citric acid, the sodium hydroxide and the ammonium nitrate, wherein the obtained material is uniformly stirred according to a water cement ratio of (0.8-1.0):1 and then the stirred material is injected into the drilling port position. According to the present invention, the material is subjected to rapid condensation hardening and expansion, and the positive pressure is generated on the drilling wall so as to increase the friction between the hardening body of the material and the drilling wall, and the obstruction effect is generated for the punching of the static breaking agent in the drilling hole so as to provide the anti-punching effect.

Description

technical field [0001] The invention belongs to the field of engineering blasting, and in particular relates to a static crushing anti-punching material and a preparation and use method thereof. Background technique [0002] Static crushing is a crushing method that uses a static crushing agent to slowly load brittle materials such as rocks and concrete until they crack and break. During the static crushing process, there is no vibration, no flying stones, no noise, and no impact on other parts of the crushed object. Negative Effects. However, in the process of static crushing construction, punching is an accident that is prone to occur. Therefore, the research on anti-piercing technology of static crushing is of great significance. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a static crushing anti-punching material and its preparation and use method for the defect that the static crushing agent is prone to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/06C04B24/04C04B22/14C04B22/06
Inventor 孙文标左秋玲刘道伟郭兵兵徐星郑瑞娜
Owner HENAN INST OF ENG
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