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Method for reinforcing lignin fiber soil stabilizer roadbed

A lignin fiber and soil technology, applied in the field of geotechnical engineering, can solve the problems that cannot meet the requirements of complex engineering construction, complex engineering construction foundation, complex soil reinforcement problems, etc., and achieve good application prospects, good structural viscosity, good resistance Effects of corrosion and freeze-thaw resistance

Active Publication Date: 2018-02-13
CHINA SHENHUA ENERGY CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, with the continuous development of the economy, the foundation of engineering construction has become more and more complex, and the problems of soil reinforcement encountered in construction have become more and more complicated. Traditional reinforcement materials such as lime, cement and fly ash, etc. It is prone to shrinkage cracks and other problems, which can no longer meet the construction requirements of complex projects

Method used

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  • Method for reinforcing lignin fiber soil stabilizer roadbed

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] This example is used to illustrate the improved soil provided by the present invention and its preparation method.

[0060] Weigh 18g P.II 52.5 Portland cement, 37g slag, 10g lime, 8g gypsum, 12g water glass, 12g silica fume, 3g calcium chloride, 8g calcium sulfate, 5g triethanolamine and 2g polycarboxylate water reducer, It was placed in a stirrer and stirred at room temperature (25° C.) for 0.3 h to obtain a mixture.

[0061] Weigh 100g of soil material (dry weight, taken from the Bazhun heavy-duty railway area of ​​Ordos City, Inner Mongolia, the same below), 6g of the above-mentioned mixture, 0.75g of lignin fiber and 87.4mL of water, and place them in a mixer at room temperature (25°C) Under stirring for 0.4h, improved soil T1 was obtained.

Embodiment 2

[0063] This example is used to illustrate the improved soil provided by the present invention and its preparation method.

[0064] Weigh 20g PO42.5 ordinary Portland cement, 40g slag, 12g lime, 10g gypsum, 15g water glass, 15g silica fume, 4g aluminum chloride, 10g sodium sulfate, 6g triethanolamine, 3g polycarboxylate superplasticizer, It was placed in a stirrer and stirred at room temperature (25° C.) for 0.3 h to obtain a mixture.

[0065] Weigh 100g of soil material (dry weight), 8g of the above mixture, 1g of lignin fiber and 87.4mL of water, put them in a mixer and stir at room temperature (25°C) for 0.4h to obtain improved soil T2.

Embodiment 3

[0067] This example is used to illustrate the improved soil provided by the present invention and its preparation method.

[0068] Weigh 15g P.II 52.5 Portland cement, 35g slag, 8g lime, 5g gypsum, 8g water glass, 10g silica fume, 2g calcium chloride, 5g calcium sulfate, 3g triethanolamine, 3g polycarboxylate superplasticizer, It was placed in a stirrer and stirred at room temperature (25° C.) for 0.3 h to obtain a mixture.

[0069] Weigh 100g of soil material (dry weight), 5g of the above mixture, 0.2g of lignin fiber and 87.4mL of water, put them in a mixer and stir at room temperature (25°C) for 0.4h to obtain improved soil T3.

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Abstract

The invention relates to the field of geotechnical engineering, and discloses a method for reinforcing a lignin fiber soil stabilizer roadbed. Specifically, the invention relates to a soil reinforcingcomposition, an improved soil containing the soil reinforcing composition, an application of the soil reinforcing composition and / or the improved soil in soil body improvement, and a method for soilbody improvement. Specifically, the soil reinforcing composition provided by the invention comprises a stabilizing component, a reinforcing component and lignin fibers, wherein the stabilizing component is at least one of cement, slag and lime and optional gypsum; the reinforcing component is water glass and / or silica fume. When the soil reinforcing composition provided by the invention is appliedto soil body improvement, the compression strength, crack resistance and water stability of the soil body can be obviously improved.

Description

technical field [0001] The present invention relates to the field of geotechnical engineering, in particular to a soil reinforcement composition, an improved soil containing the soil reinforcement composition, the application of the soil reinforcement composition and / or the improved soil in soil improvement, And a method for soil improvement. Background technique [0002] Soil is an important part of railway engineering, highway engineering and water conservancy engineering, and its engineering performance directly affects the quality and safety of railway engineering, highway engineering, water conservancy engineering, etc., so it is necessary to take appropriate measures to improve the soil , especially to improve the compressive strength, crack resistance and water stability of the soil. [0003] At present, soil stabilization agents are usually used to improve the soil. The soil curing agent and the soil material are mixed and stirred, the soil curing agent and the soi...

Claims

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Application Information

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IPC IPC(8): C04B28/26C04B28/14C04B28/10C04B28/04
CPCC04B28/04C04B28/10C04B28/14C04B28/26C04B2111/00732C04B2201/50C04B7/02C04B18/141C04B22/064C04B22/143C04B18/146C04B22/124C04B24/122C04B24/24C04B22/12C04B22/147C04B14/361C04B24/383
Inventor 赵莹莹凌贤长惠舒清李岩李鹏田爽
Owner CHINA SHENHUA ENERGY CO LTD
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