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Curing agent and construction method of weak soil

A construction method and curing agent technology, applied in the direction of solid waste management, sustainable waste treatment, climate sustainability, etc., can solve the problems of difficult sludge dehydration and low bearing capacity of consolidated bodies, and achieve low production costs and reduced use Quantity, the effect of huge social benefits

Inactive Publication Date: 2010-03-31
要明伦
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a curing agent with less admixture, fast precipitation in soft soil, high bearing capacity, and good water immersion resistance of the consolidated body, so as to solve the problems of low bearing capacity of the consolidated body and difficulty in dehydrating the sludge in the existing sludge solidification technology , the disadvantage of many foreign materials

Method used

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  • Curing agent and construction method of weak soil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1 Get each raw material component of soft soil solidifying agent by following weight ratio:

[0029] The powder raw material is: P.O42.5 ordinary Portland cement.

[0030] The raw material composition of the solution is: anionic polyacrylamide 5kg, pulp waste liquid 45kg, cement retarder 45kg, OP-10 industrial emulsifier 2.0kg, carrageenan 0.5kg, xanthan gum 0.5kg, sodium α-olefin sulfonate 2.0kg, mixed with 3 times water to make a liquid.

[0031] Calculate the amount of water needed to be added to the cement according to the water-cement ratio of 0.45, mix it with the liquid agent evenly, and then mix it with cement to make a cement slurry for use. The ratio of cement and liquid agent is about 50:1, and use the prepared cement slurry to solidify the sludge. Knot treatment test. The test uses the silt blowing and land reclamation silt from Lingang New District, Tianjin. It has been determined that the water content of the silt is about 100%, and the organi...

Embodiment 2

[0033] Embodiment 2 Get each raw material component of soft soil solidifying agent by following weight ratio:

[0034] The powder raw materials are: 15kg of Portland cement clinker, 74kg of water-quenched slag, 2kg of lime, 5kg of gypsum, 3kg of sodium fluoride, and 1kg of sodium fluorosilicate. The above raw materials are crushed and mixed to obtain a powder;

[0035] The raw materials of the solution are: 15kg of amphoteric polyacrylamide, 40kg of pulp waste liquid, 40kg of cement retarder, 2.0kg of OP-10 emulsifier, 2.5kg of α-olefin sulfonate, 0.5kg of carrageenan, and 3 times water Mix to make a liquid.

Embodiment 3

[0037] Embodiment 3 Get each raw material component of soft soil solidifying agent by following weight ratio:

[0038] The powder raw materials are: Portland cement clinker 10kg, active water-quenched slag 83kg, lime 3kg, gypsum 3kg, sodium fluorosilicate 1kg;

[0039] The raw materials of the solution are: polyacrylamide 6kg, pulp waste liquid 60kg, caustic soda 2kg, cement retarder 30kg, OP-10 emulsifier 1.5kg, α-olefin sulfonate 0.5kg.

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Abstract

The invention relates to a curing agent and a construction method of weak soil. The curing agent of the weak soil is characterized by comprising powder and liquid, wherein the powder comprises cementand congealing stones or the following materials in parts by weight: 0-20 parts of cement clinker, 60-95 parts of grain slag or slag, 1-5 parts of lime, 1-5 parts of plaster, 1-5 parts of anhydrous sodium sulphate, 0-10 parts of caustic soda, 0-10 parts of water glass and 0.1-3 parts of sodium fluosilicate; the liquid comprises the following components in parts by weight: 1-15 parts of polyacrylamide, 20-60 parts of pulp waste liquid, 10-40 parts of cement retarder, 0.5-1.5 parts of OP emulsifier, 0.3-1.0 part of carrageenan, 0.3-1.0 part of xanthan gum and 0.5-1.5 parts of alpha-olefin sulfonate. The curing agent is previously prepared into seriflux before being used, and the weak soil and the curing agent seriflux are uniformly stirred by mechanical stirring equipment and then are spreador compacted. The addition quantity of the powder is greatly reduced because a small quantity of the liquid is added; in addition, materials can be easily obtained, and the performance of consolidated soil is superior, thus the curing agent of the weak soil, i.e. sludge and the like, has high efficiency and environmental protection.

Description

technical field [0001] The invention belongs to the technical field of curing agent for soft soil consolidation, and in particular relates to a chemical used for curing treatment of weak soil with different water contents and a construction method thereof. Background technique [0002] Igneous rocks or sedimentary rocks on land have experienced climate change for millions of years, and the rocks have been weathered and crushed. Under the action of inland rivers and coastal tidal hydraulic transport, fine rock and soil particles will deposit and settle in estuaries and coasts, and in slow-flow areas such as rivers, lakes, and reservoirs. Form a weak soil layer, and at the same time carry and mix upstream domestic and industrial pollutants. The formed weak soil layer generally has the characteristics of fine particles, high organic matter content, high water content, and is not easy to fall, resulting in low bearing capacity, high porosity, and large settlement after bearing, ...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B18/14
CPCY02W30/91
Inventor 孙建国刘曰键梁力民王展国
Owner 要明伦
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