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Clay slurry curing agent

A technology of curing agent and clay slurry is applied in the field of clay slurry curing agent, which can solve the problems of increased cost of curing agent and low strength of stone body, and achieves the effects of increasing mechanical strength and increasing cross-linking density.

Inactive Publication Date: 2011-09-07
湖南宏禹工程集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially in the slurry with high clay content, the strength of the stone body obtained after curing with cement is very low. In order to make the material achieve higher strength, more cement is added, which forces the cost of curing agent to increase.

Method used

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  • Clay slurry curing agent
  • Clay slurry curing agent
  • Clay slurry curing agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A: Prepare clay slurry with a slurry density of 1.30g / cm 3 , the sand content is 7%, and the clay is dominated by silty clay.

[0016] B: Curing agent ratio: cement: mineral powder = 1:2, the mineral powder is made of steel slag powder and water-quenched slag powder.

[0017] Use 300g of cement and the above-mentioned curing agent. Under the same conditions, 1200g of clay slurry is respectively cured. The results are shown in the table below.

[0018] Table 1 adopts cement and curing agent in the present invention to solidify clay slurry gained strength

[0019]

Embodiment 2

[0021] A: Prepare clay slurry with a slurry density of 1.30g / cm 3 , the sand content is 7%, and the clay is dominated by silty clay.

[0022] B: Curing agent ratio: cement: mineral powder: activator: auxiliary agent = 1:1:0.02: 0.01.

[0023] The slag is water-quenched blast furnace slag, the activator is calcium sulfate, and the auxiliary agent is sodium pyrophosphate.

[0024] Using 300g of cement and the above-mentioned curing agent, under the same conditions, 1200g of clay slurry was respectively cured, and the results obtained are shown in Table 2 below.

[0025] Table 2 adopts cement and curing agent in the present invention to solidify clay slurry gained strength

[0026]

Embodiment 3

[0028] A: Prepare clay slurry with a slurry density of 1.50g / cm 3 , the sand content is 2%, and the clay is dominated by silty clay.

[0029] B: Curing agent ratio: cement: mineral powder: activator: auxiliary agent = 1:10:0.1:0.01.

[0030] The slag is water-quenched blast furnace slag and boiling furnace slag (mass ratio 1:1), the activator is sodium sulfate, and the auxiliary agent is naphthalenesulfonate formaldehyde condensate.

[0031] Using 300g of cement and the above-mentioned curing agent, under the same conditions, 1200g of clay slurry was respectively cured, and the results are shown in Table 3 below.

[0032] Table 3 adopts cement and curing agent in the present invention to solidify clay slurry gained strength

[0033]

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Abstract

The invention discloses a clay slurry curing agent. The curing agent is physically formed by mixing mineral powder and cement which are taken as main gel ingredients with little exciting agent and other auxiliary agents; and under the same condition, compared with the cement with the same mass, the final strength of the prepared slurry consolidation is improved by 100 to 800 percent by adopting the curing agent when the clay slurry with different finenesses is cured by adopting the curing agent. The clay curing slurry formed by adopting the curing agent and the clay slurry can be widely applied to engineering, such as filling and reinforcing of underground cavities, stratum seepage prevention, water plugging and the like.

Description

technical field [0001] The curing agent involved in the invention is a material for curing clay slurry, and is especially suitable for curing clay slurry with high clay content, high water-solid ratio and low sand content in the clay slurry. Background technique [0002] Clay cement slurry is made of clay as the main component, cement as the curing agent, and water as the solvent to form the grouting material. Due to its low cost, good durability, and easy availability of raw materials, it has been widely used in water conservancy and hydropower in recent years. Water blocking, anti-seepage and reinforcement in mines, tunnels, underground space engineering and other fields. Since the activity of clay in clay cement slurry is very low, when the solidified stone body is required to reach a certain unconfined compressive strength, a large amount of cement needs to be added. Especially in the slurry with higher clay content, the strength of the stone body obtained after curing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/08
Inventor 宾斌龚高武彭春雷贺茉莉
Owner 湖南宏禹工程集团有限公司
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