A kind of polymer foundation soil consolidation agent
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A technology of foundation soil and consolidating agent is applied in the field of polymer foundation soil consolidating agent, which can solve the problems of insufficient environmental protection and economy, and achieve the effect of improving dry shrinkage performance and stable development of strength.
Active Publication Date: 2022-01-28
SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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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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[0029] The method of the present invention are prepared:
[0030] 1, the raw materials for preparing the modified weight solution of triisopropanolamine, triisopropanolamine modified percentage ratio was as follows:
[0031] Triisopropanolamine 35-45%
[0032] Ethylene glycol bis methacrylate, 12 to 20%
[0033] The organic solvent is 37% to 50%
[0034] Further, wherein the organic solvent is styrene, triethanolamine and ethanol.
[0035] Triisopropanolamine step of preparing a modified solution is a, homogenizer autoclave was heated to 50 ~ 70 ℃, triisopropanolamine and the purity of 35 to 45% by weight ratio of at least 60% of the organic solution slowly wait until the heating was added; B, the ratio of 12 to 20% by weight of ethylene glycol dimethacrylate was added slowly triisopropanolamine homogenizer autoclave, stirred for 5 ~ 20min, to prepare a modified triisopropanolamine solution.
[0036] 2. Preparation of a mixture of methacrylic acid and N- isopropyl acrylamide:
[0...
Embodiment 1
[0057] Preparation of the polymer ground foundant of the present invention is prepared according to Table 1:
[0058] Table 1 Consolidation compound ratio A
[0059]
[0060] Thereafter, the consolidated ground foundation is designed according to Table 2.
[0061] Table 2 Consolidated ground foundation ratio 1 #
[0062] Serial number Material name unit Compliance 1 water kg 21 2 Soil 1 # m 3
Embodiment 2
[0064] The polymer ground soil solidifier of the present invention is prepared according to the ratio shown in Table 3:
[0065] Table 3 Consolidation compound ratio B
[0066]
[0067] Thereafter, the coordination ratio design of the solid foundation according to the contents of Table 2.
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Abstract
The invention discloses a polymer foundation soil consolidating agent. The weight proportion of each raw material in the polymer foundation soil consolidating agent is as follows: cement 40-76, steel slag 10-25, modified triisopropanolamine solution 10~25, the mixture of methacrylic acid and N-isopropylacrylamide 3~10; the water reducer is 0~3‰ of the weight of steel slag; the defoamer is 0~3% of the weight of modified triisopropanolamine . The polymer foundation soil consolidation agent of the present invention can solidify silt, muddy silt, soft soil and dregs etc. with moisture content between 10% and 70%, especially for soil with organic matter content below 30%. The scope of application of the consolidated soil can significantly enhance the compressive rebound modulus and unconfined compressive strength of the cured product, and it can still ensure that the consolidated soil can provide greater support for the upper engineering construction without adding gravel. the bearing capacity of the foundation.
Description
Technical field [0001] Invention is in the field of foundation treatment roads, airports, construction works, in particular a polymeric foundation soil consolidating agent and its preparation method, can expand the scope of consolidation of the soil, it is possible to ensure that the material properties of the other main road Technology the index is not reduced conditions, the cured product is significantly enhanced compressive resilient modulus and unconfined compressive strength, crushed stone without adding more significant reduction and improve the bearing capacity of the roadbed soil shrinkage late condensing temperature cracking. Background technique [0002] With the demand for urban development, construction around the city more and more, before roads, airports and construction need to be processed during the foundation of even the replacement of soil, in order to more economical, faster and more environmentally friendly implementation of this project, full use of existin...
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