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Method for improving over-wet cohesive soil by using curing agent

A curing agent and over-humidity technology, applied in soil protection, construction, infrastructure engineering, etc., can solve the problems of high price, limited by soil type, insufficient strength, etc., achieve low cost, improve physical and mechanical properties, and facilitate The effect of construction

Inactive Publication Date: 2010-09-22
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0022] In order to solve the problems existing in the prior art, such as being restricted by soil type, water stability, insufficient strength, and high price, the present invention provides a method for improving over-wet clay soil with a curing agent, which can effectively improve over-wet clay, and Inexpensive and effective

Method used

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  • Method for improving over-wet cohesive soil by using curing agent
  • Method for improving over-wet cohesive soil by using curing agent
  • Method for improving over-wet cohesive soil by using curing agent

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Embodiment 1

[0046] A method for improving over-wet cohesive soil with a curing agent, characterized in that the plasticity index of the over-wet cohesive soil is greater than 10, the curing agent used is carbide slag, and the amount of carbide slag is 4-4% of the weight of the over-wet cohesive soil. 8%.

[0047] Specific embodiments of the present invention are described in more detail below:

[0048] 1. Carbide slag improved over-wet clay technology

[0049] The effect of calcium carbide slag on wet soil is planned to be evaluated through the combination of indoor test and theoretical analysis, mainly from the following aspects:

[0050] ①Study the physical and mechanical properties of calcium carbide slag-improved over-wet soil;

[0051] ②Evaluate the feasibility of improving over-wet soil road with carbide slag;

[0052] ③ Clarify the mechanism of calcium carbide slag improving over-wet soil;

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Abstract

The invention discloses a method for improving over-wet cohesive soil by using a curing agent. The plasticity index of the over-wet cohesive soil is more than 10; the used curing agent is carbide slag; and the used carbide slag is 4 to 8 percent of the mass of the over-wet cohesive soil. The method for improving the over-wet cohesive soil can effectively improve the over-wet cohesive soil, and has the advantages of low cost and good effect.

Description

technical field [0001] The invention particularly relates to a method for treating over-wet clay roadbed filler, which belongs to the technical fields of civil engineering and road engineering. Background technique [0002] Over-wet soil refers to the cohesive soil whose natural moisture content exceeds the optimal moisture content by a lot, but is not higher than its liquid limit, cannot be directly compacted and rolled, and must be treated before being rolled and used. [0003] The descriptions of over-wet soils in the existing researches in China are roughly as follows: [0004] (1) It is pointed out in the "Comprehensive Stabilization Technology of High-grade Highway Over-wet Soil Subgrade" jointly completed by the Highway Research Institute of the Ministry of Communications, Jiangsu Provincial Transportation Research Institute, Southeast University, and Nanjing Institute of Chemical Technology c After being less than a certain allowable value, corresponding technical m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/12
Inventor 杜延军刘松玉张莹莹
Owner SOUTHEAST UNIV
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