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A super strong composite anchoring agent

An anchoring agent and super-strength technology, applied in the field of super-strength composite anchoring agent, can solve the problems of high production cost of resin anchoring agent, poor adhesion and gripping force, slow growth of anchoring strength, etc., and achieve good anchoring force and gripping force. The effect of wrapping force, enhancing anchoring force and gripping force, without wasting material

Active Publication Date: 2020-07-28
GANSU ZHITONG TECH ENG DETECTION CONSULTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Resin anchoring agent has high production cost, poor anchoring force with rock formation, and poor durability
Ordinary cement mortar anchoring agent, the slow growth of anchoring strength, poor cohesiveness and gripping force, insufficient anchoring force in the later stage, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Example 1 A super-strong composite anchoring agent, the anchoring agent is composed of 500 parts by weight (kg) of cement, 80 parts of fluorogypsum, 240 parts of sand, 150 parts of nano-scale calcium dust, and 20 parts of water-soluble latex powder. Mix well and serve.

[0018] Among them: cement refers to CA50-1 X6 aluminate cement.

[0019] The fineness of fluorine gypsum is greater than 400 mesh, SO 3 ≥40%.

[0020] Sand refers to quartz sand or river sand with a particle size of less than 1.0 mm.

[0021] Nano-scale calcium dust refers to the modification of the product obtained by dry-type dust removal from the raw material dust carried by the gas during the blast furnace smelting process and the high-temperature zone, which reacts violently and then condenses in the low-temperature zone to form fine amorphous spherical particles. The final particle size is 1~3μm material.

[0022] The initial setting time of the super composite anchoring agent is 2~3min, and t...

Embodiment 2

[0023] Example 2 A super-strong composite anchoring agent, the anchoring agent is composed of 550 parts by weight (kg) of cement, 100 parts of fluorogypsum, 190 parts of sand, 130 parts of nano-scale calcium dust, and 18 parts of water-soluble latex powder. Mix well and serve.

[0024] Among them: cement refers to the mixture of CA50-1 X6 aluminate cement and 52.5 grade sulphoaluminate cement in a weight ratio of 2:1.

[0025] Fluorogypsum, sand, and nanoscale calcium dust are the same as in Example 1.

[0026] The initial setting time of the super composite anchoring agent is 1~2min, and the final setting time is 3~4min; the compressive strength: 12.5 MPa (0.5h), 16.1 MPa (1h), 27.2 MPa (24h).

Embodiment 3

[0027] Example 3 A super strong composite anchoring agent, the anchoring agent is composed of 600 parts by weight (kg) of cement, 100 parts of fluorogypsum, 200 parts of sand, 88 parts of nano-scale calcium dust, and 12 parts of water-soluble latex powder. Mix well and serve.

[0028] Among them: cement refers to CA50-1 X6 aluminate cement, 52.5 grade sulphoaluminate cement, P.O52.5 grade ordinary Portland cement mixed in a weight ratio of 2:1:1.

[0029] Fluorogypsum, sand, and nanoscale calcium dust are the same as in Example 1.

[0030] The initial setting time of the super composite anchoring agent is 3~4min, and the final setting time is 7~9min; the compressive strength: 9.7 MPa (0.5h), 15.4 MPa (1h), 37.3 MPa (24h).

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Abstract

The invention relates to a super composite anchoring agent. The super composite anchoring agent is formed by uniformly mixing the following raw materials in parts by weight: 500 to 650 parts of cement, 80 to 120 parts of fluorine gypsum, 180 to 240 parts of sand, 80 to 150 parts of nanoscale calcium powder, and 8 to 20 parts of water soluble emulsion powder. The super composite anchoring agent isavailable in raw materials, simple in preparation process and easy in industrial production, and has excellent anchoring force and bond stress.

Description

technical field [0001] The invention relates to the technical field of anchoring materials such as mine shaft engineering, highway, railway, building installation engineering, tunnel engineering bolting and spraying support, and particularly relates to a super-strong composite anchoring agent. Background technique [0002] Traditional anchoring agents include resin anchoring agents and ordinary cement mortar. The production cost of the resin anchoring agent is high, the anchoring force with the rock formation is poor, and the durability is poor. Ordinary cement mortar anchoring agent, the slow growth of anchoring strength, poor cohesiveness and gripping force, insufficient anchoring force in the later stage, etc. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a super strong composite anchoring agent which has good anchoring force and gripping force and is easy for industrial production. [0004] In order to so...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/14
CPCC04B28/142C04B2201/50C04B7/32C04B14/06C04B18/149C04B24/24C04B7/02C04B14/068
Inventor 牛敏敏程永娃冯月娥刘淑梅杨玉君孙武
Owner GANSU ZHITONG TECH ENG DETECTION CONSULTING CO LTD
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