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Cement base soil-solidified-agent and preparation and application thereof

A soil curing agent and cement-based technology, applied in the field of civil engineering and building materials, can solve the problems of poor durability, limited growth strength, slow increase in lime soil strength, etc., and achieve the effect of reducing environmental pollution and energy consumption.

Inactive Publication Date: 2009-12-09
NORTHWEST A & F UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the strength of lime soil increases slowly, and the growth strength is limited; the strength of cement soil is low, the drying shrinkage is large, and the durability is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Soil sample: selected from Wugong loess. The granular mechanical composition of the soil samples is mainly silt (0.075-0.005mm), with a content of 60.2%, clay (0.075mm) 4.8%, which belongs to silty clay.

[0022] Cement: "Dunshi brand" P.O.42.5 cement produced by Jidong Cement Fufeng Co., Ltd.

[0023] Gypsum: Xinxing brand plaster of paris produced by Baoji Qishan Xinxing Gypsum Factory.

[0024] Lime: quicklime powder with calcium oxide and magnesium oxide contents of 49.2% and 12.0% respectively.

[0025] Forming method: dry hard forming, the dry density of the test piece is 1.723g / cm 3 , moisture content 18.2%.

[0026] Composition and preparation of soil stabilizer: anhydrous sodium sulfate: 20%, sodium tripolyphosphate: 4%, carbonamide: 3%, polyacrylamide: 4%, sodium lauryl sulfate emulsifier: 3% , Triethanolamine: 6%, Sodium Silicate: 30%, Sodium Hydroxide: 10%, Sodium Carbonate: 10%, Potassium Hydroxide 5%, Sodium Methyl Silicate 5%, the above raw materials ...

Embodiment 2

[0032] Soil sample: selected from Dingbian loess. The physical and chemical properties of the soil: the mechanical composition of the particles is mainly sand (>0.075mm), its content is 52.0%, the content of silt (0.075-0.005mm) is 37.0%, and the content of clay (<0.005mm) is 11.0%. Limited to silt.

[0033] Cement: "Qingtongxia" P.O.42.5 cement produced by Ningxia Xixia Cement Co., Ltd.

[0034] Gypsum: Xinxing brand plaster of paris produced by Baoji Qishan Xinxing Gypsum Factory.

[0035] Lime: quicklime powder with calcium oxide and magnesium oxide contents of 49.2% and 12.0% respectively.

[0036] Forming method: dry hard forming, the dry density of the test piece is 1.962g / cm 3 , moisture content 10.3%.

[0037] Composition and preparation of soil stabilizer: anhydrous sodium sulfate: 12%, sodium tripolyphosphate: 5%, carbonamide: 4%, polyacrylamide: 6%, sodium lauryl sulfate emulsifier: 3% , triethanolamine: 8%, sodium silicate: 35%, sodium hydroxide: 8%, sodium ca...

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Abstract

The invention discloses a cement base soil-solidified-agent and preparation and application thereof. The soil-solidified-agent is prepared by the following raw materials by weight percent: 10-40% of sodium sulfate, 2-6% of sodium tripolyphosphate, 2-5% of carbamide, 2-8% of polyacrylamide, 1-5% of lauryl sodium sulfate emulsifier, 2-10% of triethanolamine, 10-60% of sodium silicate, 4-12% of sodium hydroxide, 2-15% of sodium carbonate,2-6% of potassium hydroxide and 2-8% of methyl sodium silicate; and the sum of the percentage is 100%. The soil-solidified-agent can be prepared into powder or liquid, can fully activate various physical, chemical and physical chemistry reactions of cement and soil, so as to greatly improve engineering performance of cement soil, improve strength, reduce dry shrinkage and improve durability. The invention can be widely applied to projects such as road foundation, embankment reinforcement, channel seepage prevention, water and soil conservation, side slope protection, pile foundation processing and the like.

Description

technical field [0001] The invention belongs to the technical field of civil engineering materials, and in particular relates to soil reinforcement materials for construction of road foundations, embankment reinforcement, canal seepage prevention, water and soil conservation, slope protection, pile foundation treatment, etc., especially a cement-based soil curing agent and Its preparation and application of the cement-based soil curing agent in various types of cement-reinforced soil. Background technique [0002] With the deterioration of the ecological environment and the serious shortage of energy in the world, how to make full use of local building materials in the field of civil engineering construction to achieve the purpose of reducing energy consumption and curbing environmental degradation is a major issue facing civil engineers. At present, lime and cement are mostly used as soil reinforcement materials, which can enhance the strength of the soil, improve the water...

Claims

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Application Information

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IPC IPC(8): C09K17/40C09K103/00
Inventor 樊恒辉高建恩娄宗科何武全吴普特孙胜利
Owner NORTHWEST A & F UNIV
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