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Improvement agent for expansive soil foundation and improvement construction method

A construction method and land-based technology, applied in infrastructure engineering, soil protection, construction, etc., can solve problems such as restricting sustainable social development, destroying ecology, polluting the environment, etc., achieving significant social and environmental benefits, and reducing land occupation. , the effect of protecting the ecological environment

Active Publication Date: 2016-04-13
曙鹏建筑工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These wastes not only take up a lot of space, but also pollute the environment, destroy the ecology, and restrict the sustainable development of society.

Method used

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  • Improvement agent for expansive soil foundation and improvement construction method
  • Improvement agent for expansive soil foundation and improvement construction method
  • Improvement agent for expansive soil foundation and improvement construction method

Examples

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Effect test

Embodiment Construction

[0017] The following specific examples describe the present invention in further detail:

[0018] The expansion soil foundation improver is characterized in that it is a mortar formed by stirring waste rubber powder and phosphogypsum powder with water, the mass ratio of waste rubber powder and phosphogypsum powder is 20:80-30:70, waste rubber powder and phosphorus Gypsum powder accounts for 6-7% of the total mass of the mortar.

[0019] The improving agent of the present invention has both physical and chemical improvement effects on the expansive soil foundation. Physical improvement: the physical and chemical properties of the rubber powder are stable under normal temperature conditions, and it has the characteristics of high elasticity, high toughness, impact resistance and the like. Through drilling and grouting, the waste rubber powder and expansive soil groups are evenly mixed. The waste rubber powder doped therein has the function of retarding, inhibiting or alleviatin...

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Abstract

The invention provides an expansive soil modifying agent. The expansive soil modifying agent is adhesive cement prepared by mixing waste rubber powder, ardealite and water; the mass ratio of the waste rubber powder to the ardealite powder is 20: 80-30: 70; and the mass sum of the waste rubber powder and the ardealite powder is 6-7% of the total mass of the adhesive cement. The modifying agent has the following beneficial effects: compared with a general lime modifying agent, the expansive soil modifying agent combines physical and chemical methods, so that the modifying effect is better, the water stability of expansive soil can be largely increased, the foundation dilatation deformation is prominently decreased, and the duration and the stability are kept.

Description

technical field [0001] The invention relates to the technical field of construction, in particular to an expansive soil foundation improver and an improved construction method. Background technique [0002] Expansive soil is a kind of regional special clay, which has the characteristics of water absorption expansion, water loss shrinkage, repeated expansion and contraction deformation, water immersion bearing capacity attenuation, drying shrinkage crack development, etc. It is extremely unstable in nature and often causes uneven vertical deformation of buildings. Or horizontal expansion and contraction deformation, causing displacement, cracking, tilting or even damage. Treatment methods for expansive soil foundation include engineering measures such as soil replacement, soil property improvement, pre-soaking, and prevention of water content changes in the foundation soil. The soil replacement method requires large-scale excavation, and the cost of earth and stone allocatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D3/12
CPCE02D3/12E02D2300/0001
Inventor 谷耀东高赟李立万泽鹏
Owner 曙鹏建筑工程有限公司
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