Swelling soil modifier

Abstract

The invention relates to a material for regulating and improving the soil structure, soil compactness, and soil chemical properties and physical properties of a swelling soil roadbed. The technical scheme is that: a swelling soil stabilizer comprising a main component of dodecylbenzene sulfonic acid and a swelling soil firming agent comprising a main component of polyvinyl alcohol are combined to improve the chemical and physical properties of swelling soil. The swelling soil stabilizer regulates the components and molecular structure of the swelling soil so as to improve the structure, compactness and expansion and shrinkage performance of the swelling soil, and recombine the structure of the swelling soil; the firming agent is used to firm swelling-shrinking soil, reduce the swelling ratio, improve bearing capacity and reduce construction cost so as to reasonably use human, financial and material resources, and the aim that civil engineering including road engineering is durable is fulfilled; and after being rolled, the soil can be compressed to achieve high compactness, reduce an osmotic coefficient and improve soil consolidation capacity, so that the damage of water to the roadbed is reduced and the frost boiling phenomenon of the roadbed is effectively prevented.

Description

(1) Technical field [0001] The invention relates to an adjusting material for adjusting and improving the soil structure, soil compactness, soil chemical properties and physical properties of the expansive soil road foundation. (2) Background technology [0002] Expansive soil is a geological body with many cracks and significant expansion and contraction formed in the natural geological process. The clay component is mainly composed of hydrophilic clay minerals (mainly montmorillonite and illite). It has the characteristics of water absorption expansion, water loss shrinkage and repeated deformation. When the temperature and humidity of the environment change, the building Objects, especially light buildings, roadbeds, airports, canal slopes, and dams, etc., have serious damage effects, especially the deformation and damage to buildings often have long-term potential dangers. [0003] The clay content in the particle size composition of expansive soil is high, generally mo...

AI Technical Summary

Problems solved by technology

Due to the characteristics of expansion and contraction, the abandoned square is often replaced with soil in the project, which not only consumes huge engineering costs, but also occupies a large amount of land, which is not conducive to environmental protection

[0006] The most traditional method in the currently known expansive soil treatment technology is to add a certain proportion of lime to the soil and mix it with expansive soil, and then roll it. This method not only causes serious pollution to the environment during the construction process, but also does not get good results. effect, another method is to replace the soil, which will increase a lot of cost and prolong the construction time, and destroy a lot of arable land

There is still no good solution

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