CN117735935A - Humus soil curing agent and preparation method and application thereof - Google Patents
Humus soil curing agent and preparation method and application thereof Download PDFInfo
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- CN117735935A CN117735935A CN202311698505.5A CN202311698505A CN117735935A CN 117735935 A CN117735935 A CN 117735935A CN 202311698505 A CN202311698505 A CN 202311698505A CN 117735935 A CN117735935 A CN 117735935A
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- 239000002689 soil Substances 0.000 title claims abstract description 75
- 239000003864 humus Substances 0.000 title claims abstract description 70
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 50
- 238000002360 preparation method Methods 0.000 title abstract description 13
- 239000002893 slag Substances 0.000 claims abstract description 67
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 claims abstract description 33
- 238000003756 stirring Methods 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 238000002156 mixing Methods 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 5
- 230000003068 static effect Effects 0.000 claims description 3
- 238000010348 incorporation Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 11
- 238000002386 leaching Methods 0.000 abstract description 6
- 238000004064 recycling Methods 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 239000003344 environmental pollutant Substances 0.000 abstract description 2
- 238000011066 ex-situ storage Methods 0.000 abstract description 2
- 238000011065 in-situ storage Methods 0.000 abstract description 2
- 231100000719 pollutant Toxicity 0.000 abstract description 2
- 238000009270 solid waste treatment Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 description 10
- 239000000203 mixture Substances 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 239000005416 organic matter Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 229910001385 heavy metal Inorganic materials 0.000 description 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 238000007873 sieving Methods 0.000 description 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000004568 cement Substances 0.000 description 3
- 239000010813 municipal solid waste Substances 0.000 description 3
- 239000002910 solid waste Substances 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000003446 ligand Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 230000001988 toxicity Effects 0.000 description 2
- 231100000419 toxicity Toxicity 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000033558 biomineral tissue development Effects 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
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- 230000007547 defect Effects 0.000 description 1
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- 230000018109 developmental process Effects 0.000 description 1
- 230000009881 electrostatic interaction Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 229910001653 ettringite Inorganic materials 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 230000003334 potential effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000003900 soil pollution Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
The application belongs to the technical field of solid waste treatment, and particularly relates to a humus soil curing agent, a preparation method and application thereof. The humus soil curing agent comprises, by mass, 50-80 parts of blast furnace slag, 5-30 parts of carbide slag, 5-10 parts of phosphogypsum and 0-10 parts of biochar. The humus soil curing agent, the preparation method and the application thereof solve the recycling problem of humus soil, and the formed curing body can meet the requirements of pollutant leaching and mechanical properties, can be used as an in-situ or ex-situ backfill material, saves a large amount of transportation cost and secondary landfill cost, and has excellent environmental and economic benefits.
Description
Technical Field
The invention relates to the technical field of solid waste treatment, in particular to a humus soil curing agent and a preparation method and application thereof.
Background
Mining and quality-based recycling of landfill sites are considered as one of important ways for realizing ecological restoration of Chen Jiuxing simple landfill sites and recycling of landfill wastes. The main components obtained by screening the garbage soil comprise: building components, combustible components, recyclable components and fine-class components. The fine components are also called humus soil, and are mainly mixed particles generated by daily soil coverage of a simple garbage landfill and degradation of biodegradable substances in municipal domestic garbage. At present, humus soil is not widely reused, and the content of the humus soil is more than 50%. As is known, since humus soil contains high concentrations of organic matter, heavy metals, soluble salts and other contaminating components, reuse must also take into consideration the leachate properties as a key parameter for evaluating the reliability of direct backfill of humus soil, in addition to satisfying basic mechanical properties.
Cure stabilization is a common approach proposed for mechanical strength and contaminant control. The traditional inorganic curing materials mainly comprise cementing materials such as cement, lime and the like, but the large-scale use of the inorganic curing materials inevitably increases the disposal cost and simultaneously causes the problems of unavoidable energy consumption and environmental pollution. Therefore, searching a potential low-carbon low-cost material to replace the traditional inorganic curing material has important significance for reducing carbon emission and realizing the sustainable development goal of waste disposal.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the humus soil curing agent, the preparation method and the application thereof, the curing agent solves the recycling problem of humus soil, the formed curing body can meet the requirements of pollutant leaching and mechanical properties, can be used as an in-situ or ex-situ backfill material, saves a large amount of transportation cost and secondary landfill cost, and has excellent environmental and economic benefits.
In order to solve the technical problems, the invention provides a humus soil curing agent. A preparation method and application.
In a first aspect of the application, the application provides a humus soil curing agent, which comprises, by mass, 50-80 parts of blast furnace slag, 5-30 parts of carbide slag, 5-10 parts of phosphogypsum and 0-10 parts of biochar.
In some embodiments, the blast furnace slag, the carbide slag, the phosphogypsum, and the biochar have a particle size of less than or equal to 200 mesh.
In a second aspect of the present application, the present application further provides a preparation method of the humus soil curing agent, where the preparation method includes:
providing raw materials, wherein the raw materials comprise the following components in parts by mass: 50-80 parts of blast furnace slag, 5-30 parts of carbide slag, 5-10 parts of phosphogypsum and 0-10 parts of biochar;
and mixing and stirring the provided raw materials uniformly to obtain the humus soil curing agent.
In some embodiments, in the process of uniformly mixing and stirring the provided raw materials, the stirring speed is more than or equal to 150r/min, and the stirring time is 3-5 min.
In a third aspect of the present application, there is also provided the use of a humus soil solidifying agent as described above, characterized in that the humus soil solidifying agent is incorporated into wet humus soil;
uniformly stirring the wet humus soil doped with the humus soil curing agent;
uniformly stirring a humus soil curing agent and wet humus soil, adding water with the residual mass according to the optimal water content, and then uniformly stirring again;
and (5) preparing a sample according to a maximum dry density static pressure method, and curing to obtain a cured body.
In some embodiments, the incorporation of the humus soil solidifying agent into wet humus soil specifically comprises:
according to the total mass portion ratio, the humus soil is 70-90 portions, and the curing agent is 10-30 portions.
In some embodiments, the uniformly stirring the wet humus soil doped with the humus soil solidifying agent specifically comprises:
the stirring speed is more than or equal to 150r/min, and the stirring time is 5-10 min.
In some embodiments, the stirring is performed again after adding the water with the residual mass according to the optimal water content, and the method specifically comprises the following steps:
adding 60-80 parts of water according to the optimal water content, uniformly stirring, sealing and standing for more than 12 hours.
In some embodiments, the stirring speed is more than or equal to 150r/min, and the stirring time is 5-10 min.
In some embodiments, the curing conditions of the cured body are:
the temperature is 20+/-2 ℃, the humidity is 95+/-3 percent, and the curing is carried out for 7-90 days.
One or more technical solutions provided by the present application have at least the following technical effects or advantages:
the humus soil curing agent, the preparation method and the application provided by the application fully exert the volcanic ash activity of slag, the supplement of carbide slag and phosphogypsum as exciting agents and various active components, and the biochar as an adsorbent can also have a better fixing effect on carbon and nitrogen, so that the advantages and the disadvantages of the material characteristics are taken as a complement, and the novel humus soil curing agent is prepared. Specifically, the potential activity effect of blast furnace slag is stimulated by the carbide slag and phosphogypsum, the pozzolan reaction is promoted to generate hydraulic gel such as hydrated calcium silicate/hydrated calcium aluminate, the cohesiveness among humus soil particles is improved, a large amount of ettringite crystals grow, microscopic pores among the humus soil particles are filled, and a stable and compact soil structure is formed, so that the later mechanical property is remarkably improved. The organic matter content in the sample is reduced by influencing the mineralization of the organic matter due to the partially active oxides (e.g., iron oxide, aluminum oxide, etc.) in the novel curing agent. The organic matter can be adsorbed by electrostatic interaction and ligand exchange, especially ligand exchange on iron and aluminium oxides, and the direct fixation of the organic matter on the oxides, especially iron and aluminium oxides, is also an important way of reducing the content thereof. The encapsulation and chemical stabilization of the amorphous gel products can passivate heavy metals and lose mobility. The biochar has rich pore structures and large specific surface area, and can adsorb heavy metals and organic pollutants in humus soil, thereby reducing the pollution risk to the environment.
Detailed Description
The following will illustrate by way of specific examples.
Example 1
The embodiment provides a humus soil curing agent, and a preparation method and application thereof, wherein the preparation method comprises the following steps:
s01, sieving blast furnace slag through a 200-mesh sieve, wherein the blast furnace slag is taken from a mineral product processing plant, and the chemical composition of the blast furnace slag is shown in a table I:
TABLE-main chemical composition of blast furnace slag (mass percent%)
| MgO | Al 2 O 3 | SiO 2 | CaO | Fe 2 O 3 | K 2 O | Na 2 O | P 2 O 5 | SO 3 |
| 8.73 | 13.25 | 35.86 | 38.52 | 0.31 | 1.08 | 0.85 | 0.06 | - |
S02, sieving carbide slag and phosphogypsum through a 200-mesh sieve, wherein the carbide slag is taken from a certain chemical company, the chemical composition of the carbide slag is shown in a table II, and the phosphogypsum is taken from a certain chemical company, and the chemical composition is shown in a table III:
main chemical composition (mass percent) of table dicarbite slag
| MgO | Al 2 O 3 | SiO 2 | CaO | Fe 2 O 3 | K 2 O | Na 2 O | P 2 O 5 | SO 3 |
| 0.26 | 1.29 | 3.65 | 90.75 | 0.30 | - | 0.95 | 0.03 | 2.63 |
Main chemical composition of exterior three phosphogypsum (mass percent)
| MgO | Al 2 O 3 | SiO 2 | CaO | Fe 2 O 3 | K 2 O | Na 2 O | P 2 O 5 | SO 3 |
| 0.11 | 0.83 | 8.27 | 37.25 | 0.63 | 0.53 | 0.17 | 0.88 | 50.11 |
S03, sieving the biochar with a 200-mesh sieve, wherein the biochar is produced by high-temperature pyrolysis of straws, the bulk density of the biochar is 400-450g/l, and the specific surface area is 1000-1300m 2 And/g, the content of C is more than 95%.
S04, uniformly mixing the blast furnace slag, the carbide slag, the phosphogypsum and the biochar to form the novel inorganic curing agent, wherein the mass portion ratio of the blast furnace slag, the carbide slag, the phosphogypsum and the biochar is 50 portions of the blast furnace slag, 30 portions of the carbide slag, 10 portions of the phosphogypsum and 10 portions of the biochar.
In step S04 of the embodiment, blast furnace slag, carbide slag, phosphogypsum and biochar are mixed uniformly, and the concrete method is that the blast furnace slag, the carbide slag, the phosphogypsum and the biochar are added into a stirring device according to the mass portion ratio and stirred for 5-10 min under the condition of low-speed stirring speed of 150rpm, so that the blast furnace slag, the carbide slag, the phosphogypsum and the biochar are mixed uniformly, and the novel inorganic curing agent is obtained.
S05, screening, airing and crushing the components mined by the refuse landfill, sieving with a 10-mesh sieve to obtain humus soil, and drying the humus soil in a drying oven for 24 hours at the temperature of about 60 ℃ before curing.
S06, uniformly mixing the novel inorganic curing agent and humus soil to form a mixture, wherein the mass portion ratio of the novel inorganic curing agent to the humus soil is 15 portions of the novel inorganic curing agent and 85 portions of the humus soil.
S07, performing compaction test according to the test procedure of the inorganic binder stabilizing material of highway engineering (JTG E51-2009), and determining the maximum dry density and the optimal water content of the mixture according to the standard method of the test procedure of the inorganic binder stabilizing material of highway engineering (JTG E51-2009).
S08, uniformly stirring the novel inorganic curing agent and humus soil, forming a cured body with 95% compactness by adopting a static pressure method according to the optimal water content of the cured soil mixture, wherein the total operation time from water adding, mixing and compacting is within 0.5-2 h.
Example two
As yet another embodiment of the present invention, unlike the first embodiment, in step S04, the mass part ratio of the blast furnace slag, the carbide slag, the phosphogypsum, and the biochar is 55 parts of the blast furnace slag, 30 parts of the carbide slag, 10 parts of the phosphogypsum, and 5 parts of the biochar.
Example III
As yet another embodiment of the present invention, unlike the first embodiment, in step S04, the blast furnace slag, the carbide slag, the phosphogypsum, and the biochar are in a mass part ratio of 60 parts of the blast furnace slag, 20 parts of the carbide slag, 10 parts of the phosphogypsum, and 10 parts of the biochar.
Example IV
As yet another embodiment of the present invention, unlike the first embodiment, in step S04, the mass part ratio of the blast furnace slag, the carbide slag, the phosphogypsum, and the biochar is 65 parts of the blast furnace slag, 20 parts of the carbide slag, 10 parts of the phosphogypsum, and 5 parts of the biochar.
Example five
As yet another embodiment of the present invention, unlike the first embodiment, in step S04, the blast furnace slag, the carbide slag, the phosphogypsum, and the biochar are in a mass part ratio of 70 parts of the blast furnace slag, 15 parts of the carbide slag, 5 parts of the phosphogypsum, and 10 parts of the biochar; in step S06, the mass portion ratio of the novel inorganic curing agent to the humus soil is 10 portions of the novel inorganic curing agent and 90 portions of the humus soil.
Example six
As yet another embodiment of the present invention, unlike the first embodiment, in step S04, the blast furnace slag, the carbide slag, the phosphogypsum, and the biochar are in a mass part ratio of 70 parts of the blast furnace slag, 15 parts of the carbide slag, 5 parts of the phosphogypsum, and 10 parts of the biochar.
Example seven
As yet another embodiment of the present invention, unlike the first embodiment, in step S04, the mass part ratio of the blast furnace slag, the carbide slag, the phosphogypsum, and the biochar is 75 parts of the blast furnace slag, 15 parts of the carbide slag, 5 parts of the phosphogypsum, and 5 parts of the biochar.
Example eight
As yet another embodiment of the present invention, unlike the first embodiment, in step S04, the mass part ratio of the blast furnace slag, the carbide slag, the phosphogypsum, and the biochar is 80 parts, 5 parts, and 10 parts.
Example nine
As yet another embodiment of the present invention, unlike the first embodiment, in step S04, the mass part ratio of the blast furnace slag, the carbide slag, the phosphogypsum, and the biochar is 80 parts of the blast furnace slag, 15 parts of the carbide, 5 parts of the phosphogypsum, and 0 part of the biochar.
The solidified humus soil prepared in each example was tested for solid waste leaching toxicity according to the method of solid waste leaching toxicity leaching sulfuric acid method (HJ/T299-2007), the organic matter content of the test sample was tested according to the method of geotechnical test standard (GB/T50123-1999) by the potassium dichromate capacity method, and the 7d unconfined compressive strength and California bearing ratio of the test sample were tested according to the method of geotechnical test standard (GB/T50123-1999). The test results are shown in the following table:
the leaching concentration of the heavy metal (Cr, pb, zn, cu, ni, cd) element of the solidified humus soil can meet the requirements of the first-class land and the second-class land in the soil environmental quality construction land soil pollution risk management and control standard (trial) of GB 36600-2018. The organic matter content of the solidified humus soil in all the embodiments can meet the requirements of Chinese standards of soil hardener application technical standards (CJJ/T286-2018) and general standards of building and municipal foundation foundations (GB 55003-2021) after solidification (less than or equal to 5%). The unconfined compressive strength of sample 7d in all examples meets the design requirements of composite foundation materials (not less than 300 kPa) in general Specification for foundation of building and municipal Foundation (GB 55003-2021). The solidified humus in all embodiments can meet the California bearing ratio limit requirements of various levels of highway subgrade beds in highway subgrade design Specification (JTG D30-2015).
In summary, the road subbase layer in all embodiments has good heavy metal stabilizing effect, mechanical properties and use safety. The curing agent not only realizes the bulk consumption of industrial solid waste, but also realizes the purposes of not using traditional cement, reducing the cement consumption, being green and environment-friendly, having simple preparation process, good curing effect meeting the national requirements, and low cost and being suitable for popularization and application to society.
Claims (10)
1. The humus soil curing agent is characterized by comprising, by mass, 50-80 parts of blast furnace slag, 5-30 parts of carbide slag, 5-10 parts of phosphogypsum and 0-10 parts of biochar.
2. The humus soil solidifying agent of claim 1, wherein the blast furnace slag, the carbide slag, the phosphogypsum, and the biochar have a particle size of 200 mesh or less.
3. A method for preparing the humus soil solidifying agent according to claim 1 or 2, comprising:
providing raw materials, wherein the raw materials comprise the following components in parts by mass: 50-80 parts of blast furnace slag, 5-30 parts of carbide slag, 5-10 parts of phosphogypsum and 0-10 parts of biochar;
and mixing and stirring the provided raw materials uniformly to obtain the humus soil curing agent.
4. The method for preparing the humus soil curing agent of claim 3, wherein the stirring speed is equal to or higher than 150r/min and the stirring time is 3-5 min in the process of uniformly mixing and stirring the provided raw materials.
5. The use of the humus soil solidifying agent according to claim 1 or 2, characterized in that,
mixing the humus soil curing agent into wet humus soil;
uniformly stirring the wet humus soil doped with the humus soil curing agent;
uniformly stirring a humus soil curing agent and wet humus soil, adding water with the residual mass according to the optimal water content, and then uniformly stirring again;
and (5) preparing a sample according to a maximum dry density static pressure method, and curing to obtain a cured body.
6. The use of a humus soil solidifying agent according to claim 5, characterized in that said incorporation of the humus soil solidifying agent into wet humus soil comprises in particular:
according to the total mass portion ratio, the humus soil is 70-90 portions, and the curing agent is 10-30 portions.
7. The use of the humus soil solidifying agent according to claim 5, wherein the mixing of the wet humus soil into which the humus soil solidifying agent is incorporated is carried out uniformly, specifically comprising:
the stirring speed is more than or equal to 150r/min, and the stirring time is 5-10 min.
8. The application of the humus soil curing agent according to claim 5, wherein the mixing is performed again after adding the water with the remaining mass according to the optimal water content, and the method specifically comprises the following steps:
adding 60-80 parts of water according to the optimal water content, uniformly stirring, sealing and standing for more than 12 hours.
9. The use of the humus soil solidifying agent according to claim 8, wherein the stirring rate is not less than 150r/min, and the stirring time is 5-10 min.
10. The use of the humus soil curing agent of claim 5, wherein the curing conditions of the cured body are:
the temperature is 20+/-2 ℃, the humidity is 95+/-3 percent, and the curing is carried out for 7-90 days.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311698505.5A CN117735935A (en) | 2023-12-12 | 2023-12-12 | Humus soil curing agent and preparation method and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311698505.5A CN117735935A (en) | 2023-12-12 | 2023-12-12 | Humus soil curing agent and preparation method and application thereof |
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Country or region after: China Address after: 518000, 2007 Pingshan Avenue, Liulian Community, Pingshan Street, Pingshan District, Shenzhen City, Guangdong Province, China Innovation Plaza A1201-A1206 Applicant after: Shenzhen Special Zone Construction Engineering Energy Construction Group Co.,Ltd. Applicant after: INSTITUTE OF ROCK AND SOIL MECHANICS, CHINESE ACADEMY OF SCIENCES Address before: 518000, 2007 Pingshan Avenue, Liulian Community, Pingshan Street, Pingshan District, Shenzhen City, Guangdong Province, China Innovation Plaza A1201-A1206 Applicant before: SHENZHEN TIANJIAN PINGSHAN CONSTRUCTION ENGINEERING Co.,Ltd. Country or region before: China Applicant before: INSTITUTE OF ROCK AND SOIL MECHANICS, CHINESE ACADEMY OF SCIENCES |
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