Foundation soil polymeric consolidation agent

Abstract

The invention discloses a foundation soil polymeric consolidation agent, which comprises, by weight, 40-76 parts of cement, 10-25 parts of steel slag, 10-25 parts of modified triisopropanolamine solution, and 3-10 parts of mixture of methacrylic acid and N-isopropylacrylamide, wherein water reducing agents accounts for 0-0.3% of steel slag by weight, and defoamer accounts for 0-3% of modified triisopropanolamine by weight. The foundation soil polymeric consolidation agent can consolidate sludge, mucky soil, soft soil and muck and the like, which have the moisture content ranging from 10% to 70%, especially soil with organic matter content lower than 30%, expand application range of consolidated soil, strengthen compression rebound modulus and unconfined compressive strength of consolidatedproducts greatly, and guarantee that the consolidated soil body can provide a higher foundation bearing capacity to the upper engineering construction without adding of aggregates.

Description

Technical field [0001] The invention belongs to the field of foundation treatment of roads, airports, and construction projects. Specifically, it is a polymer foundation soil consolidation agent and its preparation method. It expands the application range of consolidable soil and can be used in other major road performance technologies of the material. Under the condition that the index does not decrease, the compressive resilience modulus and unconfined compressive strength of the cured product are significantly enhanced, without the addition of crushed stones, which significantly improves the bearing capacity of the foundation and reduces the dry shrinkage and temperature shrinkage of the road bed in the later stage. Cracked. Background technique [0002] With the demands of urban development, there are more and more constructions surrounding cities. Foundation treatment and even soil replacement are required before roads, airports and construction projects. In order to impleme...

AI Technical Summary

Problems solved by technology

At present, hydraulic materials such as cement and fly ash are commonly used to consolidate these soils, or to modify these hydraulic materials by adding some stimulating materials, most of which are inorganic stimulating materials, which usually affect the organic matter content in the soil. There are strict requirements, usually less than 10% can be successfully consolidated; in addition, the current consolidation method increases the strength of the soil by adding crushed stones. As the environmental protection department has become more stringent on the mining of mountain rocks, the price of crushed stones has doubled. Therefore, this method is not environmentally friendly and economical enough

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