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Novel grouting material and preparation method thereof

A grouting material, a new type of technology, applied in the field of new grouting material and its preparation, can solve the problems of low compressive strength and flexural strength, and can not meet the requirements of engineering basic materials, so as to improve the compressive strength and flexural strength, Good groutability and effect of improving compactness

Inactive Publication Date: 2017-11-03
HEFEI OUSHIJIA ELECTRICAL & MECHANICAL EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] With the continuous development of social economy, there are more and more various super-large equipment and super high-rise buildings, and the mileage of high-speed railways is getting longer and longer. However, the compressive strength and flexural strength of the grouting materials in the prior art are low, so Can not meet the engineering requirements for basic materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] This embodiment relates to a new type of grouting material, including the following raw materials in parts by weight: 20 parts of waste concrete, 10 parts of cement, 8 parts of mineral powder, 15 parts of iron tailings slag, 10 parts of fly ash, 7 parts of aggregate, waste 5 parts of stone, 6 parts of waste gypsum, 3 parts of polypropylene fiber, 2 parts of hydroxypropyl cellulose, 1 part of nano calcium silicate hydrate, 3 parts of expansion agent, 2 parts of defoamer, 0.5 part of water reducer, 2 parts of strengthening agent, 0.3 parts of anti-settling agent, 0.1 part of air-entraining agent, and 0.2 parts of setting retarder.

[0027] Wherein, the aggregate is a mixture of 0.1-0.6mm river sand and 0.6-4.0mm river sand with a mass ratio of 1:2.

[0028] Wherein, the water reducer is naphthalenesulfonate formaldehyde condensate.

[0029] Wherein, the accelerator is lithium carbonate.

[0030] Wherein, the expansion agent is an ettringite expansion agent.

[0031] A ...

Embodiment 2

[0037] This embodiment relates to a new type of grouting material, including the following raw materials in parts by weight: 30 parts of waste concrete, 20 parts of cement, 15 parts of mineral powder, 25 parts of iron tailings slag, 30 parts of fly ash, 22 parts of aggregate, waste 10 parts of stones, 12 parts of waste gypsum, 6 parts of polypropylene fiber, 3 parts of hydroxypropyl cellulose, 2 parts of nano calcium silicate hydrate, 8 parts of expansion agent, 3 parts of defoamer, 1 part of water reducing agent, 6 parts of strengthening agent, 0.7 part of anti-settling agent, 0.3 part of air-entraining agent, and 0.4 part of setting retarder.

[0038] Wherein, the aggregate is a mixture of 0.1-0.6mm river sand and 0.6-4.0mm river sand with a mass ratio of 1:3.

[0039] Wherein, the water reducer is sulfamic acid salt.

[0040] Wherein, the early strengthening agent is sodium sulfate.

[0041] Wherein, the expansion agent is a calcium oxide expansion agent.

[0042] A meth...

Embodiment 3

[0048] This embodiment relates to a new type of grouting material, including the following raw materials in parts by weight: 23 parts of waste concrete, 12 parts of cement, 10 parts of mineral powder, 17 parts of iron tailings slag, 15 parts of fly ash, 9 parts of aggregate, waste 6 parts of stones, 7 parts of waste gypsum, 4 parts of polypropylene fiber, 2.3 parts of hydroxypropyl cellulose, 1.2 parts of nano calcium silicate hydrate, 5 parts of expansion agent, 2.4 parts of defoaming agent, 0.7 parts of water reducing agent, 3 parts of strengthening agent, 0.4 part of anti-settling agent, 0.1 part of air-entraining agent, and 0.2 part of setting retarder.

[0049]Wherein, the aggregate is a mixture of 0.1-0.6mm river sand and 0.6-4.0mm river sand with a mass ratio of 1:2.

[0050] Wherein, the water reducer is naphthalenesulfonate formaldehyde condensate or sulfamate or aliphatic water reducer.

[0051] Wherein, the accelerator is a mixture of lithium carbonate, sodium sulf...

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Abstract

The invention discloses a novel grouting material. The novel grouting material is prepared from the following raw materials in parts by weight: 20 to 30 parts of waste concrete, 10 to 20 parts of cement, 8 to 15 parts of mineral powder, 15 to 25 parts of iron tailing slag, 10 to 30 parts of pulverized fuel ash, 7 to 22 parts of aggregate, 5 to 10 parts of waste stone, 6 to 12 parts of waste gypsum, 3 to 6 parts of polypropylene fiber, 2 to 3 parts of hydroxypropyl cellulose, 1 to 2 parts of nanometer calcium silicate hydrate, 3 to 8 parts of expanding agent, 2 to 3 parts of antifoaming agent, 0.5 to 1 part of water-reducing agent, 2 to 6 parts of early strength agent, 0.3 to 0.7 part of anti-settling agent, 0.1 to 0.3 part of air entraining agent and 0.2 to 0.4 part of retarder. The novel grouting material has very good compressive strength and flexural strength, and meets engineering requirements on basic materials; a preparation method of the novel grouting material is easy to operate, and is suitable for popularization.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a novel grouting material and a preparation method thereof. Background technique [0002] Cement grouting material: a new generation of inorganic rigid superfine grouting material refined by special equipment from high-strength superfine cement, expansion agent, aggregate and other additives. [0003] Cement grouting material is used in: dam body and dam foundation crack grouting in water conservancy projects; pouring underground waterproof curtain, cutting off seepage water source, overall anti-seepage and plugging; strengthening and improving the mechanical strength of soft soil and rock, repairing concrete structure and restoration Its integrity; correction of cracking and inclination of dams and high-rise buildings caused by uneven settlement caused by stratum instability; grouting and reinforcement of ground subsidence such as roads, bridges, and airpo...

Claims

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Application Information

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IPC IPC(8): C04B28/14C04B111/70C04B111/34
CPCC04B28/142C04B2111/343C04B2111/70C04B18/16C04B7/00C04B18/12C04B14/02C04B18/08C04B16/0633C04B22/00C04B2103/302C04B2103/22C04B2103/304C04B2103/12C04B2103/50C04B22/142C04B22/064
Inventor 孔令翠
Owner HEFEI OUSHIJIA ELECTRICAL & MECHANICAL EQUIP CO LTD
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