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High-performance superfine-cement-based grouting material

A technology of ultra-fine cement and grouting material, which is used in the field of crack treatment to achieve the effects of enhancing early compressive strength, reasonable formula, and improving impermeability and corrosion resistance.

Active Publication Date: 2017-08-18
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

But at present, such materials are mainly Portland series ultra-fine cement or modified materials made by adding high-efficiency water reducer, expansion agent, etc. to the ultra-fine cement. High-performance cement-based grouting material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1 High-performance ultra-fine cement-based grouting material, the grouting material is prepared according to the following parts by weight (kg) of raw materials after thorough mixing and uniformity: 2640 parts of ultra-fine cement, 110 parts of modified nano-scale calcium dust, polycarboxylate 19 parts of acid water reducing agent, 85 parts of superfine expansion agent, 117 parts of superfine low calcium fly ash, 28 parts of superfine desulfurization gypsum, 0.8 part of fatty alcohol sodium sulfate.

Embodiment 2

[0021] Example 2 High-performance ultra-fine cement-based grouting material, the grouting material is prepared according to the following weight parts (kg) of raw materials after thorough mixing and uniformity: 2700 parts of ultra-fine cement, 80 parts of modified nano-scale calcium dust, polycarboxylate 22.5 parts of acid water reducing agent, 90 parts of superfine expansion agent, 85 parts of superfine low calcium fly ash, 22 parts of superfine desulfurization gypsum, 0.5 part of fatty alcohol sodium sulfate.

Embodiment 3

[0022] Example 3 High-performance ultra-fine cement-based grouting material, the grouting material is prepared according to the following weight parts (kg) of raw materials after thorough mixing and uniformity: 2700 parts of ultra-fine cement, 70 parts of modified nano-scale calcium dust, polycarboxylate 23 parts of acid water reducing agent, 100 parts of superfine expansion agent, 85 parts of superfine low calcium fly ash, 21 parts of superfine desulfurization gypsum, 1.0 part of fatty alcohol sodium sulfate.

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PUM

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Abstract

The invention relates to a high-performance superfine-cement-based grouting material. The high-performance superfine-cement-based grouting material is prepared by, by weight, 2640-2760 parts of superfine cement, 60-110 parts of modified nanoscale calcium powder, 19-25 parts of polycarboxylate superplasticizer, 65-105 parts of superfine expanding agent, 70-120 parts of superfine low-calcium fly ash, 10-28 parts of superfine desulfurization gypsum and 0.5-1.3 parts of sodium aliphatic alcohol sulfate. The high-performance superfine-cement-based grouting material is reasonable in formula, low in production cost, good in working performance, easy to process, environmentally friendly, energy-saving, free of pollution and wide in application range.

Description

technical field [0001] The invention relates to the technical field of crack and fissure treatment, in particular to a high-performance ultrafine cement-based grouting material. Background technique [0002] As a grouting material, cement has the advantages of high strength, good durability, non-toxic, tasteless, wide and convenient sources of materials, and low price. Generally, ordinary cement is used for grouting and grouting. However, the particle size of ordinary cement is large, there are many coarse particles, and when the water-cement ratio is relatively large, the stability of the slurry is poor, and it is easy to separate water and thicken, and it cannot be effectively poured into fine cracks, especially for the grouting of basic fine cracks. Engineering requirements, so a new type of grouting material---ultrafine cement-based grouting material was applied. Since Japan successfully developed MC-500 ultra-fine cement in the early 1980s, due to its good slurry stabi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B111/70
CPCC04B28/04C04B2111/00672C04B2111/00732C04B2111/70C04B18/141C04B18/08C04B2103/302C04B2103/0068C04B18/064C04B24/16
Inventor 曾馨花冯月娥程永娃
Owner GANSU ZHITONG TECH ENG DETECTION CONSULTING CO LTD
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