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Micro-expansion grouting material and preparation method thereof

A grouting material and micro-expansion technology, applied in the field of building grouting materials

Active Publication Date: 2018-06-26
重庆建工第七建筑工程有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] Aiming at the deficiencies of the above-mentioned prior art, the primary technical problem to be solved by the present invention is: how to provide a method that can significantly improve the compatibility between the grout hardened body and the soil, and on this basis, improve the early strength and stability of the grout micro-expansion grouting material and its preparation method, which further makes the grout harden to have micro-expansion characteristics, and significantly reduces the drying shrinkage deformation of the stone body during consolidation and hardening

Method used

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  • Micro-expansion grouting material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0065] A kind of micro-expansion grouting material of this embodiment adopts the following mass parts ratio of materials:

[0066] High calcium fly ash: 30 parts

[0067] Calcined shale: 30 parts

[0068] Phosphogypsum: 5 parts

[0069] Ordinary Portland cement: 20 parts

[0070] Rapid hardening sulfoaluminate cement: 15 parts;

[0071] The above-mentioned materials are all powder materials and together form a gelling material. On the basis of the total number of parts of the above-mentioned materials constituting the gelling material being adjusted to 100 parts, and then according to the mass multiple of the total number of parts of the above-mentioned materials, add the following Additive materials and water:

[0072] Polycarboxylate superplasticizer: 0.01 times

[0073] Redispersible latex powder: 0.005 times

[0074] Hydroxypropyl methylcellulose ether: 0.0005 times

[0075] Calcium lignosulfonate: 0.004 times parts

[0076] Cationic organic polymer: 0.001 times part...

Embodiment 2

[0084] A kind of micro-expansion grouting material of this embodiment adopts the following mass parts ratio of materials:

[0085] High calcium fly ash: 40 parts

[0086] Calcined Shale: 25 parts

[0087] Phosphogypsum: 10 parts

[0088] Ordinary Portland cement: 15 parts

[0089] Rapid hardening sulfoaluminate cement: 10 parts;

[0090] The above-mentioned materials are all powder materials and together form a gelling material. On the basis of the total number of parts of the above-mentioned materials constituting the gelling material being adjusted to 100 parts, and then according to the mass multiple of the total number of parts of the above-mentioned materials, add the following Additive materials and water:

[0091] Polycarboxylate superplasticizer: 0.008 times

[0092] Redispersible latex powder: 0.002 times

[0093] Hydroxypropyl methylcellulose ether: 0.0005 times

[0094] Calcium lignosulfonate: 0.003 times parts

[0095] Cationic organic polymer: 0.002 times ...

Embodiment 3

[0099] A kind of micro-expansion grouting material of this embodiment adopts the following mass parts ratio of materials:

[0100] High calcium fly ash: 40 parts

[0101] Calcined shale: 20 parts

[0102] Phosphogypsum: 10 parts

[0103] Ordinary Portland cement: 15 parts

[0104] Rapid hardening sulfoaluminate cement: 15 parts;

[0105] The above-mentioned materials are all powder materials and together form a gelling material. On the basis of the total number of parts of the above-mentioned materials constituting the gelling material being adjusted to 100 parts, and then according to the mass multiple of the total number of parts of the above-mentioned materials, add the following Additive materials and water:

[0106] Polycarboxylate superplasticizer: 0.008 times

[0107] Redispersible latex powder: 0.006 times

[0108] Hydroxypropyl methyl cellulose ether: 0.0010 times parts

[0109] Calcium lignosulfonate: 0.003 times parts

[0110] Cationic organic polymer: 0.003...

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Abstract

The invention discloses a micro-expansion grouting material. The micro-expansion grouting material is characterized by being prepared from the following materials in parts by mass: 30-50 parts of high-calcium flyash, 15-30 parts of calcined shale, 5-20 parts of phosphorus gypsum, 10-20 parts of ordinary silicate cement and 5-15 parts of rapidly-hardened sulphate aluminum cement. Further, additivematerials and water are added according to the times of the total parts by mass of the above materials on the basis that the total parts by mass of the materials are prepared to 100 parts. The additive materials comprise 0.5-1 part of a polycarboxylic acid water reducer, 0.1-1 part of redispersible latex powder, 0.05-0.15 part of hydroxypropyl methyl cellulose ether, 0.2-0.4 part of calcium lignosulphonate and 0.1-0.5 part of a cationic organic polymer; the water accounts for 8-10 parts. The micro-expansion grouting material has the characteristics of excellent mechanical property, micro expansion, low preparation cost, high solid waste utilization rate, green and environmental protection and high compatibility with soil.

Description

technical field [0001] The invention relates to the field of building grouting materials, in particular to a micro-expansion grouting material and a preparation method thereof. Background technique [0002] Grouting material is a material with gelling properties that is poured into rock-soil gaps, mine tunnels, and backfill soil layers to fill and consolidate. It can play the key role in anti-seepage, plugging, stabilizing soil layers and strengthening rock-soil slopes. effect. Grouting materials are widely used in geotechnical engineering, mine filling, soil consolidation, roadbed hardening, slope reinforcement and other fields. According to the type of raw material, grouting materials can be divided into granular slurry, chemical slurry and fine mineral slurry. [0003] Granular slurry grouting materials mainly include cement slurry, cement clay slurry and cement-water glass slurry. Cement grouting materials usually use general-purpose Portland cement as the main cement...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B18/08C04B22/14
CPCC04B18/08C04B22/144C04B28/04C04B2201/50C04B14/108C04B2103/12C04B24/24C04B24/2623C04B24/383C04B24/18C04B22/002Y02W30/91
Inventor 邓世猛贾兴文路雨明曾维勇聂勇贾森张斌白晓斌周杰王鉴星蒋毅聂波
Owner 重庆建工第七建筑工程有限责任公司
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