Soil stabilizer and road construction method
The use of composite soil stabilizers has solved the limitations of single stabilizers in road construction, achieved soil modification, improved soil bearing capacity and stability, and increased compressive strength and curing time.
Patent Information
- Application Number
- CN202510180052.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2024-08-28
- Filing Date
- 2025-02-19
- Publication Date
- 2026-03-10
AI Technical Summary
The use of a single curing agent in existing technologies has limitations in road construction, especially the poor water stability and drying shrinkage of inorganic curing agents.
A composite curing agent is formulated by combining organic and inorganic curing agents, including a main curing agent, an activator, a stabilizer, and a surfactant. It is used for soil modification by combining epoxy resin, cement, lime, fly ash, slag, sodium sulfate, potassium sulfate, sodium carbonate, sodium fluoride, and benzenesulfonate surfactants in a specific ratio.
It improves the soil's bearing capacity and stability, overcomes the limitations of single curing agents, and enhances compressive strength and curing time.
Smart Images
Figure BDA0005276717330000041
Abstract
Description
TECHNICAL FIELD
[0002] The present application relates to the technical field of soil solidification, in particular to a soil solidification agent and a road construction method. BACKGROUND
[0003] At present, traditional materials such as sand and asphalt are commonly used in road construction, but these materials have a greater impact on the environment during mining, transportation and processing, and are also more expensive. As a new type of soil reinforcement material, soil solidification agent can effectively solidify soil and improve the bearing capacity and stability of soil, and is widely used in road construction.
[0004] In the prior art, organic solidification agent or inorganic solidification agent is used alone, which has certain limitations. SUMMARY
[0005] The technical problem to be solved by the present application is that the use of a single solidification agent in the prior art has certain limitations.
[0006] To achieve the above-mentioned purpose, the technical solution provided by the present application is as follows: A soil solidification agent comprises a main solidification agent, an activator, a stabilizer and a surfactant.
[0007] Further, the main solidification agent comprises organic material and inorganic material, the organic material comprises epoxy resin 5-20 parts, and the inorganic material comprises cement 30-50 parts, lime 20-30 parts, fly ash 10-35 parts and slag 10-15 parts.
[0008] Further, the activator comprises sodium sulfate 1-5 parts and potassium sulfate 1-5 parts.
[0009] Further, the stabilizer comprises 2-8 parts of sodium carbonate and 1-5 parts of sodium fluoride.
[0010] Further, the surfactant is benzene sulfonate surfactant 0.5-1 part.
[0011] Further, a road construction method of a soil solidification agent comprises the following steps: S1, preparing soil: according to the site conditions, using transportation equipment to transport the soil to the construction site; using construction machinery to pave and cover the sub-base layer and slightly flatten the soil transported to the construction site; crushing the soil appropriately, and detecting the water content of the soil to ensure that the water content of the soil is lower than the optimum water content of the soil; S2, measuring and setting out: restoring the center line on the sub-base, old pavement or roadbed, setting a stake every 15-20 m for straight sections and every 10-15 m for curved sections; setting edge stakes on both sides of the layer position to control the paving boundary, mark the thickness and elevation. S3, mixing: according to the amount of inorganic binder of the design mixing ratio, the inorganic binder is placed in the line; when the design mixing ratio has slaked lime or quicklime, the soil is added to the line one day in advance; the initial mixing is carried out by using road mixing machinery; the cement is placed according to the line and is directly added to the soil; the mixing is carried out by using road mixing machinery; each mixing needs to be overlapped and turned over, and should not be missed; the diluted soil curing agent aqueous solution is loaded by a watering cart, and is sprayed in multiple times; the first half is sprayed first, and the mechanical mixing should not be less than two times, and the remaining half is mixed for one to two times, and each spraying is immediately mixed; during the spraying process, it is evenly and not missed, and the vehicle should not be stopped in the middle, so as to prevent the spraying amount from being too large, and the hard control final curing soil mixing completion period moisture content is at the optimum moisture content or higher than the optimum moisture content +1%~+2%; the mixing completion sign is that the curing soil is fully mixed, meets the requirements of dry and wet and color consistency and no lump soil; the mixing completed curing soil is sampled and checked to ensure that the maximum particle size of the soil particles is not greater than 30mm, and the soil particles greater than 20mm are less than 5% of the total weight; when there are multiple layers of curing soil construction, the surface damage depth of the lower layer of curing soil is about 1cm during the mixing of the upper layer of curing soil, and there should be no "soil" interlayer without mixing; S4, curing soil shaping and rolling: after the curing soil is mixed, the tire roller or bulldozer is used for pressure, and then the land leveler is used for scraping and is matched with manual shaping. In the straight line section, the land leveler is scraped from both sides to the center of the road, and in the flat curve section, the land leveler is scraped from the inside to the outside; when manual shaping is used, a spade and a rake are used, the curing soil is first flattened, the land leveler is used for preliminary shaping, and then the crawler tractor is used for preliminary pressure for 1~2 times for the second time shaping; the shaping is strictly controlled according to the design requirements of the thickness, height, cross slope and flatness of the structure layer, and must be synchronous measurement and timely adjustment; during the shaping process, any vehicle is strictly prohibited to pass, and the segregation of coarse and fine materials is eliminated by manual cooperation, and then rolling is carried out; S5, curing soil curing: after the curing soil layer is rolled and formed, the traffic is interrupted for curing, and the curing time is not less than 72h; the curing soil surface is kept wet by watering.
[0012] The beneficial effects obtained by the application are as follows: The organic curing agent and the inorganic curing agent are compounded to form a composite curing agent, which can fully exert the advantages of organic materials to effectively modify the soil, and can also well avoid the limitations caused by the poor water stability and poor dry shrinkage of the structure when only using the inorganic curing agent. PREFERRED EMBODIMENT
[0013] Example 1: A soil solidifying agent, comprising a main solidifying agent, an activator, a stabilizer and a surfactant, the main solidifying agent comprising organic material and inorganic material, the organic material comprising epoxy resin 16 parts, the inorganic material comprising cement 42 parts, lime 28 parts, fly ash 30 parts and slag 13 parts, the activator comprising sodium sulfate 3 parts and potassium sulfate 3 parts, the stabilizer comprising sodium carbonate 7 parts and sodium fluoride 4 parts, and the surfactant being benzene sulfonate surfactant 0.8 parts.
[0014] Embodiment 2: A soil solidifying agent, comprising a main solidifying agent, an activator, a stabilizer and a surfactant, the main solidifying agent comprising organic material and inorganic material, the organic material comprising epoxy resin 10 parts, the inorganic material comprising cement 36 parts, lime 22 parts, fly ash 20 parts and slag 11 parts, the activator comprising sodium sulfate 2 parts and potassium sulfate 1 part, the stabilizer comprising sodium carbonate 5 parts and sodium fluoride 2 parts, and the surfactant being benzene sulfonate surfactant 0.6 parts.
[0015] A road construction method of a soil solidifying agent, comprising the following steps: S1, preparing soil: according to the site conditions, using transportation equipment to transport the soil to the construction site; using construction machinery to pave and cover the sublayer of the soil transported to the construction site and slightly flatten it; crushing the soil appropriately, and detecting the moisture content of the soil to ensure that the moisture content of the soil is lower than the optimum moisture content of the soil; S2, measuring and setting out: restoring the center line on the subbase, old pavement or roadbed, setting a stake every 15-20m for straight line segments and every 10-15m for curved line segments; setting edge stakes outside the edges of the layer position to be paved for hanging line control to mark the thickness and elevation of the boundary line; S3, mixing: according to the amount of inorganic binder of the designed mixing ratio, the inorganic binder is placed in the line; when the designed mixing ratio has slaked lime or quicklime, the soil is added to the line one day in advance; the initial mixing is carried out by using road mixing machinery; the cement is placed in the line and directly added to the soil; the mixing is carried out by using road mixing machinery; each mixing needs to be overlapped and turned over, and should not be missed; the diluted soil curing agent aqueous solution is loaded by using a watering cart, and is sprayed in multiple times; the first half is sprayed first, and the mechanical mixing should not be less than two times, and the remaining half is mixed for one to two times, and each spraying is immediately mixed; during the spraying process, it is already uniform, without omission, and without stopping in the middle, so as to prevent the spraying amount from being too large, and the final curing soil mixing is completed when the moisture content is at the best moisture content or higher than the best moisture content +1%~+2%; the mixing is completed when the curing soil is fully mixed, the dry and wet curing soil is basically consistent in color, and there is no lump soil; the mixed curing soil is sampled and checked to ensure that the maximum particle size of the soil particles is not greater than 30mm, and the soil particles greater than 20mm are less than 5% of the total weight; when there are multiple layers of curing soil construction, the surface of the lower layer of curing soil is damaged to a depth of about 1cm during the mixing of the upper layer of curing soil, and there should be no "soil" interlayer without mixing; S4, curing soil shaping and rolling: after the curing soil is mixed, the tire roller or bulldozer is used for pressure, and then the land leveler is used for scraping and shaping with manual operation. In the straight line section, the land leveler is scraped from both sides to the center of the road, and in the flat curve section, the land leveler is scraped from the inside to the outside. When manual shaping is used, a spade and a rake are used, the curing soil is first flattened, the road arch board is used for preliminary shaping, and then the crawler tractor is used for preliminary pressure for 1-2 times for the second time shaping. The thickness, height, cross slope and flatness of the structure layer are strictly controlled according to the design requirements, and synchronous measurement and timely adjustment must be done. During the shaping process, any vehicle is strictly prohibited, and the segregation of coarse and fine materials is eliminated by manual operation, and then rolling is carried out; S5, curing soil curing: after the curing soil layer is rolled and formed, the traffic is interrupted for curing, and the curing time is not less than 72h; the curing soil surface is kept wet by watering.
[0016] The data of the above examples 1-2 and the difference table of the existing comparative examples 1-2 are as follows: From the above, the compressive strength and curing time in the design are obviously improved.
[0017] In summary: in the examples of the present application, the organic curing agent and the inorganic curing agent are compounded to form a composite curing agent, which can fully exert the advantages of organic materials to effectively modify the soil, and can also avoid the limitations caused by the poor water stability and poor dry shrinkage of the structure when only using inorganic curing agents.
[0018] The above describes the present application and its embodiments, which are not limited. In general, if a person skilled in the art is inspired by the above, without departing from the spirit of the present application, similar ways and embodiments can be designed without creative design, which should belong to the protection scope of the present application.
Claims
1. A soil stabilizer characterized by: The main solidifying agent, the excitation agent, the stabilizer and the surfactant are included.
2. A soil stabilizer according to claim 1, characterized in that: The main solidifying agent includes organic material and inorganic material, the organic material includes epoxy resin 5-20 parts, the inorganic material includes cement 30-50 parts, lime 20-30 parts, fly ash 10-35 parts and slag 10-15 parts.
3. A soil stabilizer according to claim 2, wherein: The excitation agent includes sodium sulfate 1-5 parts and potassium sulfate 1-5 parts.
4. A soil stabilizer according to claim 3, wherein: The stabilizer includes sodium carbonate 2-8 parts and sodium fluoride 1-5 parts.
5. A soil stabilizer according to claim 4, wherein: The surfactant is benzene sulfonate surfactant 0.5-1 part.
6. A method of constructing a road with a soil stabilizing agent according to claim 5, characterized by: The method includes the following steps: S1, preparing soil: according to the site conditions, the soil is transported to the construction site by the transportation equipment; the soil transported to the construction site is paved and covered on the lower bearing layer by the construction machinery and is slightly leveled; the soil is properly broken, and the water content of the soil is detected to ensure that the water content of the soil is lower than the optimum water content of the soil; S2, measuring and setting out: the center line is restored on the base layer, the old road surface or the roadbed, one stake is set for a straight section 15-20 m, and one stake is set for a curve section 10-15 m; the edge stakes are set outside the edges of the layer position to hang the line and control the paving boundary, the thickness and the elevation; S3, mixing: according to the inorganic binder amount of the design mixing ratio, the inorganic binder placing line is marked; when the design mixing ratio includes slaked lime or quicklime, the inorganic binder is added into the soil one day in advance according to the marked placing line for aging; The cement is placed according to the marked placing line and is directly added into the aged soil; the road mixing machinery is used for mixing; each mixing needs to be overlapped and turned over, and should not be missed; the diluted soil solidifying agent aqueous solution is loaded by the watering cart and is sprayed in multiple times; half of the soil solidifying agent aqueous solution is sprayed first, and the mixing should not be less than two times, one to two times of mixing is performed after the remaining half of the soil solidifying agent aqueous solution is sprayed; the spraying process is uniform, without omission, and the vehicle should not be stopped in the middle of the way; the spraying amount is prevented from being too large; the final solidified soil mixing is controlled to be in the optimum water content or higher than the optimum water content +1%~+2% in the later stage; the mixing is completed when the solidified soil is fully mixed, the dry and wet solidified soil is basically consistent in color, and there is no lump soil; the solidified soil after mixing is sampled and checked to ensure that the maximum particle size of the soil particles is not greater than 30 mm, and the soil particles greater than 20 mm are less than 5% of the total weight; when there are multiple layers of solidified soil construction, the surface of the lower layer of solidified soil is damaged to a depth of about 1 cm when the upper layer of solidified soil is mixed, and there should be no "soil” interlayer without mixing; S4, solidified soil shaping and rolling: after the mixing of solidified soil is completed, first use the tire roller or bulldozer to compact, then immediately use the grader to scrape and shape with manual work; in straight section, the grader scrapes from both sides to the center of the road, in flat curve section, the grader scrapes from the inside to the outside; when manual shaping is used, use the spade and rake, first lay the solidified soil flat, use the road arch board to preliminarily shape, then use the tracked tractor to compact 1-2 times to perform the second shaping; the shaping strictly controls the thickness, height, cross slope and flatness of the structure layer according to the design requirements, must be synchronous measurement and timely adjustment; during the shaping process, strictly prohibit any vehicle to pass, and eliminate the segregation of coarse and fine materials by manual work, then perform the rolling; S5, solidified soil curing: after the solidified soil layer is rolled and formed, interrupt the traffic to perform the curing, the curing time is not less than 72h; sprinkle water to cover and cure, keep the surface of the solidified soil wet.