Method for curing base course and subbase of pavement by adopting soil stabilizing agent

A technology of soil curing agent and pavement base layer, which is applied in the direction of roads, roads, buildings, etc., can solve the problems of single variety of curing agent, can not adapt to soils of different properties, less products, etc., achieve strong curing performance and curing effect, and a good society. Benefit and economic benefit, good effect

Inactive Publication Date: 2014-04-23
LIUZHOU DONGFENG CHEM
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AI Technical Summary

Problems solved by technology

[0008] Due to the relatively single variety of domestic curing agents, they cannot adapt to different types of soil, and there are very few commercialized products.

Method used

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Embodiment Construction

[0023] The present invention comprises steps:

[0024] (1) Steps for preparing soil stabilizer: mixing materials including strong oxidizer, dispersant, ionic polymer activator and curing catalyst to prepare soil stabilizer;

[0025] (2) Steps for selecting roadbed materials: The selected roadbed materials are prepared according to the soil with a plasticity index of 7-35;

[0026] (3) Preparation steps of soil curing agent spray liquid: soil curing agent and water are diluted in water at a volume ratio of 1:100 to 1:200, and roadbed materials are added with calcium carbide slag 3-20 or lime 3-12 or Cement 2-8 is mixed;

[0027] (4) Spraying compaction step: upper spraying compaction step: the prepared soil solidification spray liquid is calculated according to the volume ratio of the compacted soil, which is generally 0.016-0.02%, and then converted into a weight ratio when adding the usage amount. The density of the soil stabilizer is 1.7-1.75g / cm 3 It is sprayed on the so...

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Abstract

The invention provides a method for stabilizing a subgrade by adopting a soil stabilizing agent. The method comprises the steps of mixing materials comprising a strong oxidant, a dispersing agent, an ionic polymer activating agent and a stabilizing catalyst together to prepare the soil stabilizing agent; preparing the selected subgrade material according to the soil with the plasticity index of 7-35; diluting the soil stabilizing agent in water in a volume ratio of (1:100)-(1:200), and simultaneously adding 3-20 of carbide slag, 3-12 of lime or 2-8 of cement to the subgrade material according to the earthwork weight ratio to be mixed; spraying and compacting: computing the volume ratio (generally 0.016-0.02%) of the prepared soil stabilizing spray solution according to the earth volume of compacted soil, converting the volume ratio to weight ratio when adding the usage amount, spraying the soil stabilizing agent with density of 1.7-1.75g/cm<3> into the soil used for the subgrade, and forming the subgrade through compaction. The method has the advantages that harmful substances can not be produced; the method is simple in construction technology, is convenient to operate, is favorable for reducing the construction amount, is high in soil stabilizing speed, has good effects, conduces to greatly shortening the construction period, is more suitable for the characteristics of local soil properties, and has more obvious stabilizing effects.

Description

technical field [0001] The invention relates to a method for curing a road base, in particular to a method for curing a road base by using a soil curing agent. Background technique [0002] Roadbed curing is an indispensable part of road laying. In China, roadbed curing technology generally stays at using gravel, mortar or quicklime, which is costly. Some roads are paved with thinner mortar in order to save costs, resulting in cracks on the road surface. [0003] The current status of the soil stabilizer is: [0004] 1. The status quo of foreign technology [0005] In the United States and other countries, soil stabilization technology has gradually formed a relatively mature technology in the 1990s. Common soil stabilization agents are divided into polymer soil stabilization agents, surfactant soil stabilization agents, biological enzyme soil stabilization agents, Several types of powdery soil stabilizer. The main products are American Bessel soil stabilizer (Baseseal-1...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C3/04
Inventor 孙念超
Owner LIUZHOU DONGFENG CHEM
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