Soil stabilizer

Abstract

The invention discloses a soil stabilizer which is prepared by mixing 20-30 parts of sodium carbonate, 15-20 parts of calcium chloride, 15-20 parts of calcium sulfate, 30-40 parts of polyferric sulfate, 5-8 parts of magnesium oxide, 5-8 parts of potassium phosphate, 10-12 parts of modified cellulose, 5-7 parts of nano zeolite and 6-8 parts of repairing microcapsules in proportion. During use, 0.05-1 part by weight of the curing agent, 3-5 parts by weight of red mud, 2-2.5 parts by weight of fly ash, 2-5 parts by weight of ordinary Portland cement and 95-97 parts by weight of plain soil are mixed through a mixing device, and then spreading and curing are performed; and the cured soil has relatively strong impermeability, freeze-thaw resistance, pressure resistance and self-repairing property, also has a very good complexing and curing effect on heavy metal ions, is not easy to seep, has recoverability, is uniformly dispersed with the soil, and has a good overall curing effect.

Description

technical field [0001] The invention relates to the field of solidification of novel geotechnical materials, in particular to a soil solidification agent. Background technique [0002] The essence of the soil is a kind of sol. Such a colloid has certain stability, and there is a certain distance between the colloidal particles. With the change of the moisture content, the soil strength varies greatly. It is used in road construction, geological disaster prevention, Water conservancy and hydropower anti-seepage and anti-leakage projects require soil with high density and strength. It is necessary to change the soil structure effect and solidify the water content of the soil. Adding chemical substances to the soil can change the properties of the soil, which is beneficial to the construction effect. [0003] Soil stabilizer is a new type of energy-saving and environmentally friendly engineering material synthesized from various inorganic and organic materials to stabilize vari...

AI Technical Summary

Problems solved by technology

[0003] Soil stabilizer is a new type of energy-saving and environmentally friendly engineering material synthesized from various inorganic and organic materials to stabilize various soils. For the soil that needs to be reinforced, according to the physical and chemical properties of the soil, only a certain amount of curing agent is required. After mixing and compacting, the required performance index can be achieved. Compared with the use of traditional pavement base material road construction, it can save road construction costs and shorten the construction period. Without changing the construction conditions, no side effects The limiting compressive strength can be improved, the soil curing agent composite consolidated soil specimens will not dissolve when soaked in water at room temperature, good water stability, good durability, etc., the polymer soil curing agent is used in practical applications because of its high concentration and dosage It is less, easy to transport, and convenient to construct. It is used in many fields, but its impermeability, freeze-thaw resistance, and compression resistance need to be further improved to meet the application in more fields. Traditional inorganic soil stabilizers mainly include lime cement. Soil stabilizer is also the preferred type of soil stabilizer in the treatment of railway subgrade foundations in the past. It combines with the moisture in the soil to form a gelling component, and finally achieves the purpose of cementing the soil, improving the stability and shear strength of the soil. But prone to deformation, cracking and other problems

[0004] In addition, due to environmental pollution, some soils often disperse a lot of heavy metal ions. How to solidify and recycle these heavy metal ions is also a problem to be solved in soil solidification.

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