Silt solidifying material and silt solidifying method

Abstract

The invention relates to the technical field of road engineering, in particular to a silt solidification material and a silt solidification method. The silt curing material is prepared from the following raw materials in parts by weight: 60-80 parts of silt, 10-20 parts of a curing agent, 10-20 parts of a curing agent, 20-40 parts of oil sand, and 2-5 parts of cement. The silt curing material provided by the invention does not need to adopt any one of foamed asphalt, emulsified asphalt, a soil curing agent and latex, the raw materials are simple and easy to obtain, the cost is relatively low,the environment is protected, and the obtained silt curing material is relatively excellent in mechanical property.

Description

technical field [0001] The invention relates to the technical field of road engineering, in particular to a silt solidification material and a silt solidification method. Background technique [0002] A large amount of silt is distributed in vast areas of our country, especially in Dongying, Heze, Liaocheng, Dezhou, Binzhou, Zibo, Jining, Jinan and other areas in Shandong Province, where a large area of ​​Yellow River alluvial silt is distributed, covering an area of ​​about 20% of the total area of ​​Shandong Province. 1 / 3. However, due to the special origin of silt, it has several obvious bad engineering characteristics: First, the silt particles are uniform and poorly graded, so it is difficult to achieve the ideal compaction state, that is, there are no more fine particles between the pores. Filled with clay, similar to the suspended state of building blocks; secondly, silt cannot effectively act with various stabilizers like clay, nor can it act as a skeleton in the so...

AI Technical Summary

Problems solved by technology

Common inorganic binders include cement, fly ash and lime materials. For soil reinforcement projects using lime and fly ash, according to the research of many researchers, lime and fly ash are suitable for stabilizing cohesive soils with a plasticity index between 12 and 20. , the stabilization effect on silt soil is not good

Cement can stabilize almost all types of soil, but cement soil also has problems such as large drying shrinkage and easy cracking, and the exposed cement soil is prone to uneven volume due to changes in cement hydration reaction, ambient temperature, and humidity. Cracks are generated due to the change of the solidified body, which leads to the reduction of the compression resistance, impermeability, frost resistance and erosion resistance of the solidified body, and a large amount of cement is used in the cement soil, which increases the project cost

Common polymer synthetic materials mainly include SBR latex, SBS latex, EVA, etc., but polymer materials are expensive and cost-effective for rural road construction

Soil stabilizer is a new method of soil stabilization. It is a kind of geotechnical composite material with excellent performance. It is a material prepared from a variety of inorganic and organic materials. It is specially used for soil reinforcement. A series of physical and chemical reactions transform the loose soil into a dense cementitious material. However, each curing agent has its own scope of application. Some soil curing agents often only meet some single performance indicators and cannot improve the comprehensive performance of various aspects. Performance, some soil stabilizers are often only suitable for certain types of soil, but have little stabilizing effect on other types of soil