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Anchoring blasting hole-sealing material and preparation method thereof

A sealing material and anchoring technology, which is applied in the field of anchoring and blasting sealing materials and its preparation, can solve the problems of long setting and hardening time, low impact resistance performance, and high production cost, and achieve enhanced curing performance, improved corrosion resistance, and improved compactness effect

Inactive Publication Date: 2018-08-21
姜香
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention: Aiming at the problems of the existing blasting sealing materials such as long setting and hardening time, poor fluidity, high production cost, low impact resistance, etc., and difficult to store in the high temperature and humid environment underground, a new method is provided. A kind of anchor blasting sealing material and preparation method thereof

Method used

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  • Anchoring blasting hole-sealing material and preparation method thereof

Examples

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Effect test

example 1

[0023] Take 20g of sodium metaaluminate, 10g of calcium chloride, 0.3g of triethanolamine, 5g of naphthalenesulfonic acid-based water reducer, add 550mL of deionized water, stir at 300r / min for 5min, then add 3g of phosphoric acid, 5g of polyethylene oxide, 8g Hard foam silicone oil SD-502, 80g bentonite, continue to stir for 10min, then add 100g lithium magnesium silicate, 12g polyvinyl acetate emulsion, 10g silane coupling agent A-171, stir at 200r / min for 10min to obtain cement additives, mix cement The additive is evenly sprayed into 1.0kg of ordinary Portland cement 32.5R, put into the mixing tank and stirred for 3 minutes, and the material is discharged to obtain the anchoring and blasting sealing material.

example 2

[0025] Take 23g of sodium metaaluminate, 13g of calcium chloride, 0.4g of triethanolamine, 7g of polycarboxylate water reducer, add 575mL of deionized water, stir at 350r / min for 7min, then add 4g of silicate, 6.5g of organic silicon Oxyalkylene condensation polymer, 10g Pingpingjia, 90g bentonite, continue to stir for 13min, then add 125g magnesium silicate lithium, 16g styrene-butadiene emulsion, 15g silane coupling agent 1110, stir at 250r / min for 13min, to obtain cement additive, cement additive The agent is evenly sprayed into 1.1kg of ordinary Portland cement 32.5R, put into the mixing tank and stirred for 4 minutes, and the material is discharged to obtain the anchoring blasting sealing material.

example 3

[0027] Take 25g of sodium metaaluminate, 15g of calcium chloride, 0.5g of triethanolamine, and 8g of melamine-based high-efficiency water reducer, add it to 600mL of deionized water, stir at 400r / min for 10min, then add 5g of sodium oleate, 8g of organosiloxane Condensation polymer, 12g polyoxyethylene stearate, 100g bentonite, continue to stir for 15min, add 150g magnesium silicate lithium, 20g acrylic acid emulsion, 20g silane coupling agent KH-560, stir 15min with 300r / min, get cement Auxiliary, spray the cement additive evenly into 1.2kg of ordinary Portland cement 32.5R, put it into the mixing tank and stir for 5 minutes, and discharge the material to obtain the anchoring blasting sealing material.

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Abstract

The invention relates to an anchoring blasting hole-sealing material and a preparation method thereof and belongs to the technical field of hole-sealing materials for mining. Bentonite is adopted as an anchoring point, a silane coupling agent having low viscosity and surface tension is utilized to enable bentonite to be quickly spread on a construction surface to soak rock surface cracks, and inorganic groups in the silane coupling agent can react with oxide on the surfaces of the cracks to generate stable silicon oxygen bonds; excellent water-absorbing expansion performance of bentonite is utilized to enable the hole-sealing material to fill the rock surface cracks and to seal, high strength and micro-expansibility after setting are realized, drill hole surrounding rock can be reinforced,and radius of a plastic zone is reduced; corrosion resistance of concrete is improved, curing performance is enhanced, and the material is enabled to have remarkable dynamic hardening effect; it shows that as hydration degree increases, heterogeneous degree of the material is lowered, and comprehensive performance meets actual needs of blasting hole-sealing materials.

Description

technical field [0001] The invention relates to an anchoring blasting sealing material and a preparation method thereof, belonging to the technical field of mining sealing materials. Background technique [0002] Blasting is often used in mine roadway excavation and coal seam enhancement, and the sealing effect of blast holes greatly affects the blasting effect. The utilization rate of explosion energy is also greatly affected by the quality of the sealing hole. If there is no sealing or the quality of the sealing is not dense, the explosive blast shock wave will rush out from the weak surface, resulting in the destruction of the blasting drill hole, and the explosion shock gas will rush out of the drill hole, damaging the mechanical equipment and environmental facilities on the working face, and the remaining explosives will A large amount of toxic and harmful gas will be produced, which seriously threatens the health and personal safety of the staff on the working surface...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B2201/50C04B22/08C04B22/124C04B24/122C04B22/00C04B24/42C04B14/104C04B2103/302C04B2103/408C04B2103/40C04B2103/0068
Inventor 姜香王文新李静
Owner 姜香
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