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Anti-impact cement-based paste grout and preparation method thereof

A paste-like slurry and cement-based technology, which is applied in the field of grouting materials and its preparation, can solve complex problems such as inability to form effective curtains, and achieve the effects of high fluidity, good impact resistance, and good durability

Inactive Publication Date: 2016-12-14
SINOHYDRO FOUND ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the complex geological conditions that need to be faced in the grouting project, the traditional grout mainly adds bentonite, fly ash and a certain amount of water reducer to the plain cement grout, which is acceptable as a conventional construction, but it cannot be used in large seepage Effective curtains are formed in complex formations with high water flow, high pressure and large flow. In order to solve such problems, a kind of anti-water flow dilution and impact characteristics is required. The setting time can be adjusted and controlled according to the needs of grouting. After the grout condenses in water, there is a certain Strong high-performance grouting material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Prepare materials according to weight ratio:

[0018] Sulphoaluminate cement 10000g

[0019] water 5000g

[0020] Admixture 265g

[0021] Among them, the admixtures include: polysaccharide organic polymer flocculant 100g, hydroxypropyl methylcellulose 50g, calcium chloride 20g, sodium aluminate 20g, lime 20g, alkali 20g, alum 20g, sodium silicate 10g, polyacrylic acid Sodium 5g.

[0022] Mix sulfoaluminate cement and water, stir until fully dissolved, and prepare cement slurry, which is placed in the upper barrel of a double-barrel low-speed mixer;

[0023] Weigh the polysaccharide-type organic polymer flocculant, hydroxypropyl methylcellulose, calcium chloride, sodium aluminate, lime, alkali, alum, sodium silicate, and sodium polyacrylate, mix them in water, and stir until Fully dissolve to prepare the admixture solution, and place it in the lower barrel of the double-barrel low-speed mixer;

[0024] Turn on the mixer, put the cement slurry in the upper barrel int...

Embodiment 2

[0027] Prepare materials according to weight ratio:

[0028] Sulphoaluminate cement 10000g

[0029] water 5000g

[0030] Admixture 647.5g

[0031] Among them, the additives include: polysaccharide organic polymer flocculant 250g, hydroxypropyl methylcellulose 125g, calcium chloride 60g, sodium aluminate 56g, lime 50g, alkali 50g, alum 34g, sodium silicate 15g, polyacrylic acid Sodium 7.5g.

[0032] Mix sulfoaluminate cement and water, stir until fully dissolved, and prepare cement slurry, which is placed in the upper barrel of a double-barrel low-speed mixer;

[0033] Weigh the polysaccharide-type organic polymer flocculant, hydroxypropyl methylcellulose, calcium chloride, sodium aluminate, lime, alkali, alum, sodium silicate, and sodium polyacrylate, mix them in water, and stir until Fully dissolve to prepare the admixture solution, and place it in the lower barrel of the double-barrel low-speed mixer;

[0034] Turn on the mixer, put the cement slurry in the upper barrel...

Embodiment 3

[0037] Prepare materials according to weight ratio:

[0038] Sulphoaluminate cement 10000g

[0039] water 5000g

[0040] Admixture 1300g

[0041] Among them, the admixtures include: polysaccharide organic polymer flocculant 400g, hydroxypropyl methylcellulose 200g, calcium chloride 120g, sodium aluminate 120g, lime 80g, alkali 40g, alum 40g, sodium silicate 20g, polyacrylic acid Sodium 10g.

[0042] Mix sulfoaluminate cement and water, stir until fully dissolved, and prepare cement slurry, which is placed in the upper barrel of a double-barrel low-speed mixer;

[0043] Weigh the polysaccharide-type organic polymer flocculant, hydroxypropyl methylcellulose, calcium chloride, sodium aluminate, lime, alkali, alum, sodium silicate, and sodium polyacrylate, mix them in water, and stir until Fully dissolve to prepare the admixture solution, and place it in the lower barrel of the double-barrel low-speed mixer;

[0044] Turn on the mixer, put the cement slurry in the upper barre...

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Abstract

The invention discloses anti-impact cement-based paste grout and a preparation method thereof. The anti-impact cement-based paste grout is prepared from sulphoaluminate cement, water, a polysaccharide organic polymer flocculant, hydroxypropyl methyl cellulose, calcium chloride, sodium aluminate, lime, alkali, alum, sodium silicate and sodium polyacrylate. The anti-impact cement-based paste grout and the preparation method thereof have advantages of great improvement of grout performances, enhancement of resistance of the grout to flushing of flowing water, shortening of grout coagulation time, improvement of leakage stopping effects, simplification of construction process and protection of the natural environment.

Description

technical field [0001] The invention belongs to the field of water conservancy engineering, and in particular relates to a grouting material capable of resisting the impact of a certain water flow and a preparation method thereof. Background technique [0002] Grouting is one of the effective methods to solve the leakage problem of dam foundation or cofferdam. Grouting is to inject materials with filling and cementing properties into the cracks or holes in the formation through equipment, and wait for the grout to solidify and harden to form a "slurry stone body" with high strength, good impermeability, and good durability, so as to achieve filling and reinforcement , The purpose of anti-seepage and plugging. [0003] Due to the complex geological conditions that need to be faced in the grouting project, the traditional grout mainly adds bentonite, fly ash and a certain amount of water reducer to the plain cement grout, which is acceptable as a conventional construction, bu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/06C04B111/70
CPCC04B28/065C04B2111/70C04B22/002C04B24/38C04B24/383C04B22/124C04B22/0093C04B22/064C04B22/06C04B22/148C04B14/045C04B24/2641
Inventor 江志安唐玉书苏迎春胡硕鹏李佐良苗志斌
Owner SINOHYDRO FOUND ENG
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