CN111470834A - Preparation method of ecological solidified light soil and ecological solidified light soil - Google Patents
Preparation method of ecological solidified light soil and ecological solidified light soil Download PDFInfo
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- CN111470834A CN111470834A CN202010293377.6A CN202010293377A CN111470834A CN 111470834 A CN111470834 A CN 111470834A CN 202010293377 A CN202010293377 A CN 202010293377A CN 111470834 A CN111470834 A CN 111470834A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
- C04B28/142—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements
- C04B28/144—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements the synthetic calcium sulfate being a flue gas desulfurization product
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention discloses a preparation method of ecological solidified light soil, which comprises the following steps: crushing the residual sludge dregs and the biomass material to the grain diameter of not more than 10mm, adding water and stirring to the density of 1400-3The slurry of (4); diluting the foaming agent by 50 times and foaming by 30 times to prepare a mixture of foam and aerogel; and (3) mixing the slurry obtained in the step (1) with gypsum, cement, mineral powder and water, uniformly stirring, heating for a period of time, cooling, then adding the mixture obtained in the step (3), uniformly stirring to obtain solidified light soil, and then carrying out casting molding. The invention adopts residual mud and dregs dug or generated in the construction of civil engineering, hydraulic engineering and the like as the raw materials of the solidified light soil, thereby effectively realizing the reutilization of wastesThe method has the advantages of reducing environmental pollution, reducing the use of traditional materials such as soil, broken stone, lime, cement and the like, saving resources and greatly reducing the production cost of the solidified light soil.
Description
Technical Field
The invention relates to the field of building materials, in particular to a preparation method of ecological solidified light soil and the ecological solidified light soil.
Background
The solidified light soil is formed by mixing soil and a soil solidifying agent, the soil solidifying agent is activated by water to tightly bond soil particles and the solidifying agent into a whole, and has the advantages of high strength, freeze thawing resistance, cold mixing, cold application, zero heat consumption, zero emission, self-restoration, renewable recycling, easy maintenance and extensibility, good contractibility, natural ageing resistance, pollution resistance, self-cleaning, safety, no toxicity, natural appearance temperature adjustment and the like.
In the building, hydraulic engineering construction process, because of excavation such as underground, river course, can produce a large amount of needs discarded surplus mud dregs, simultaneously, because of construction process's needs, can produce the muddy water of a certain amount, mud in the building, the dado mud of foundation pile construction, the shield that produces in the shield tunnel construction constructs soil, this type of mud has not obtained all fine processing yet at present. According to research, the building residual sludge soil is subjected to harmless treatment in many cities, is reused, is dehydrated through processes such as filtration, precipitation and the like, and is prepared into mud cakes, flowerpots and ceramic lamp articles through special processes. At present, no technology for curing light soil by reasonably utilizing the waste sludge and residue soil of the engineering as raw materials exists.
On the other hand, natural gypsum is mostly adopted in the current solidified light soil, but the high-grade natural gypsum in China has small reserves, low yield and production places far away from consumption places, so that the production cost of the solidified light soil is further increased. The desulfurized gypsum is an industrial byproduct gypsum obtained by coal or oil-fired industrial enterprises after treating sulfur dioxide in flue gas, is uniformly distributed in China, particularly has high yield in developed areas of the east of areas where a large amount of gypsum products are consumed, has the same components as natural gypsum and is calcium sulfate dihydrate (CaSO)4·2H2The content of O is more than or equal to 93 percent, but the content of O is greatly different from that of natural gypsum in the aspects of original physical state, particle size, water content, impurities and the like. The natural gypsum in the solidified light soil is replaced by the desulfurized gypsum, which has important significance for reducing the production cost of the solidified light soil and promoting the further development of national environmental protection circular economy.
Therefore, in view of the above problems, there is a need to provide further solutions to solve the problem of raw material requirement for solidifying light soil, and to realize utilization and opening of residual muck "renewable resources", so as to meet the basic requirements of the current "two-type" society on ecological environmental protection and sustainable development.
Disclosure of Invention
The invention aims to provide ecological solidified light soil to overcome the problem that the residual sludge and dregs dug or generated in the construction of civil engineering, water conservancy engineering and the like in the prior art can not be effectively utilized, such as clay, sandy soil, loam and the like dug in foundation engineering, sludge removed in rivers and lakes, dregs generated by building demolition blasting and the like.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a preparation method of ecological solidified light soil comprises the following steps:
(1) crushing the residual sludge muck and the biomass material to the particle size of not more than 10mm, adding water and stirring to the density of 1400-3The slurry of (4);
(2) weighing the following components: 30-50 parts of slurry, 4-8 parts of gypsum, 8-10 parts of cement, 13-15 parts of mineral powder, 10-15 parts of water and 2-4 parts of foaming agent;
(3) diluting the foaming agent by 50 times and foaming by 30 times to prepare a mixture of foam and aerogel;
(4) mixing the slurry obtained in the step 1 with gypsum, cement, mineral powder and water, uniformly stirring, heating for a period of time, cooling, then adding the mixture obtained in the step 3, uniformly stirring to obtain the solidified light soil, and then carrying out casting molding;
(5) and carrying out mold curing on the obtained cured light soil test block in a standard curing room for one day, and then demolding.
Preferably, the slurry in step 1 is allowed to stand at 20 to 30 ℃ for 5 to 10 days.
Preferably, the solidified light soil test block after being demolded in the step 5 is maintained to the corresponding age, 28-day strength is measured by a full-automatic pressure tester at the speed of 100N/s, 3 test blocks are tested at each age, and the average value is taken as the uniaxial compression strength and the wet density of the filling body at the age.
Preferably, the three test blocks are respectively in a cylindrical, square and plate-shaped structure.
Preferably, the foaming agent is aerogel powder, sodium dodecyl sulfate, sodium fatty alcohol-polyoxyethylene ether sulfate, silicone polyether, pectin and water according to a mass ratio (0.2-2.8): (0.5-1): (0.5-0.9): (1-1.3): (0.4-1): 10 are mixed evenly at normal temperature.
Preferably, the foaming agent is foamed by a high-pressure air method, the density of the foaming agent is 55-58 g/L, the bleeding rate is 25-35%, the settlement distance is less than 5mm, and the ph7-8 is adopted.
Preferably, in the step 2, desulfurized gypsum is used as the gypsum, and alkaline mineral powder is used as the mineral powder.
Preferably, the biomass material in step 1 comprises at least one of crop straws, tree branches and trunks, and kitchen waste.
Preferably, the ratio of nitrogen, phosphorus and potassium in the biomass material is (2-3): 1: (1.5-2).
The invention also provides ecological solidified light soil which comprises the following components: residual sludge, gypsum, cement, mineral powder and a foaming agent, wherein,
30-50 parts by mass of slurry, wherein the slurry is formed by stirring residual sludge soil, biomass material and water, and the density is 1400-3；
4-8 parts by mass of gypsum;
8-10 parts by mass of cement;
13-15 parts by mass of mineral powder;
10-15 parts by mass of water;
2-4 parts by mass of a foaming agent;
the volume ratio of the total volume of the slurry, the gypsum, the cement and the mineral powder to the volume of the water to the volume of the foaming agent is 1: (0.3-0.7): (0.8-2);
the mass ratio of the slurry, the gypsum, the cement and the mineral powder is (5-8): (0.7-0.8):(0.8-1.3):(1.5-2.2).
Preferably, the foaming agent comprises aerogel powder, sodium dodecyl sulfate, sodium fatty alcohol-polyoxyethylene ether sulfate, silicone polyether, pectin and water, wherein,
the mass ratio of aerogel powder, sodium dodecyl sulfate, sodium fatty alcohol-polyoxyethylene ether sulfate, silicone polyether, pectin and water is (0.2-2.8): (0.5-1): (0.5-0.9): (1-1.3): (0.4-1): 10.
preferably, the foaming agent is foamed by a high-pressure air method, the density of the foaming agent is 55-58 g/L, the bleeding rate is 25-35%, the settlement distance is less than 5mm, and the ph7-8 is adopted.
Preferably, the slurry has a density of 1540g/cm3。
Preferably, the gypsum is desulfurized gypsum.
Preferably, the ore powder is alkaline ore powder.
The biomass material comprises at least one of crop straws, tree branches and trunks and kitchen waste.
Preferably, the mass ratio of the slurry, the gypsum, the cement and the mineral powder is (6-7): 0.8:1:1.6.
Compared with the prior art, the invention has the beneficial effects that:
(1) the residual soil excavated or generated in the construction of civil engineering, hydraulic engineering and the like is used as the raw material of the solidified light soil, the waste recycling is effectively realized, the pollution to the environment is reduced, meanwhile, the biomass material is mixed, the solidified light soil is rich in more plant nutrient elements and is suitable for ecological planting, and the biological characteristics and the nutrient storage capacity of the residual soil can be improved by the mixed fermentation of the residual soil and the biomass material.
(2) The waste sludge and residue soil is used as a raw material, so that the use of traditional materials such as soil, broken stone, lime, cement and the like is reduced, and the production cost of the solidified light soil is greatly reduced; meanwhile, residual mud and residue soil does not need to be transported and transported, the on-site pouring can be carried out, the construction engineering cost is greatly reduced, the construction method is particularly suitable for construction of high-rise ecological planting infrastructures, the weight is light, the building bearing pressure is reduced, meanwhile, the porosity is high, the plant nutrient elements are rich, beneficial conditions can be provided for plant growth, and the sludge problem caused by soil is reduced.
(3) The desulfurized gypsum is adopted, so that the production cost of the solidified light soil is further reduced, the utilization of industrial byproducts is promoted, the natural gypsum resources are protected, and the economic cycle development is facilitated.
(4) According to the invention, the biomass material is heated to generate carbon dioxide gas, so that the internal pores of the slurry are increased; meanwhile, aerogel powder, preferably silicon dioxide aerogel powder, is adopted as the foaming agent, so that the weight of the solidified light soil is further reduced, and pores are filled.
(5) The ecological solidified light soil has the characteristics of light weight and high strength, and the density of the ecological solidified light soil can be controlled to be 650g/cm3And the strength also increases with increasing density.
Detailed Description
The disclosure may be understood more readily by reference to the following detailed description of preferred embodiments of the invention and the examples included therein. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of conflict, the present specification, including definitions, will control. The term "prepared from …" as used herein is synonymous with "comprising". The terms "comprises," "comprising," "includes," "including," "has," "having," "contains," "containing," or any other variation thereof, as used herein, are intended to cover a non-exclusive inclusion. For example, a composition, process, method, article, or apparatus that comprises a list of elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such composition, process, method, article, or apparatus.
The conjunction "consisting of …" excludes any unspecified elements, steps or components. If used in a claim, the phrase is intended to claim as closed, meaning that it does not contain materials other than those described, except for the conventional impurities associated therewith. When the phrase "consisting of …" appears in a clause of the subject matter of the claims rather than immediately after the subject matter, it defines only the elements described in the clause; other elements are not excluded from the claims as a whole.
When an amount, concentration, or other value or parameter is expressed as a range, preferred range, or as a range of upper preferable values and lower preferable values, this is to be understood as specifically disclosing all ranges formed from any pair of any upper range limit or preferred value and any lower range limit or preferred value, regardless of whether ranges are separately disclosed. For example, when a range of "1 to 5" is disclosed, the described range should be interpreted to include the ranges "1 to 4", "1 to 3", "1 to 2 and 4 to 5", "1 to 3 and 5", and the like. When a range of values is described herein, unless otherwise stated, the range is intended to include the endpoints thereof and all integers and fractions within the range.
The singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. "optional" or "any" means that the subsequently described event or events may or may not occur, and that the description includes instances where the event occurs and instances where it does not.
Approximating language, as used herein throughout the specification and claims, is intended to modify a quantity, such that the invention is not limited to the specific quantity, but includes portions that are literally received for modification without substantial change in the basic function to which the invention is related. Accordingly, the use of "about" to modify a numerical value means that the invention is not limited to the precise value. In some instances, the approximating language may correspond to the precision of an instrument for measuring the value. In the present description and claims, range limitations may be combined and/or interchanged, including all sub-ranges contained therein if not otherwise stated.
In addition, the indefinite articles "a" and "an" preceding an element or component of the invention are not intended to limit the number requirement (i.e., the number of occurrences) of the element or component. Thus, "a" or "an" should be read to include one or at least one, and the singular form of an element or component also includes the plural unless the stated number clearly indicates that the singular form is intended.
Example 1:
the preparation of the ecological solidified light soil comprises the following steps:
(1) crushing the residual sludge muck and the biomass material to the particle size of not more than 10mm, adding water and stirring to the density of 1400-3The slurry of (2) is generally crushed by a crusher. In the preferred scheme, the blending density is 1540g/cm3。
Wherein, the slurry is preferably kept still for 5 to 10 days at the temperature of between 20 and 30 ℃ for fermentation so as to improve the biological characteristics and the nutrient storage capacity of the residual mud residue soil.
(2) Weighing the following components: 30 parts by mass of slurry, 4 parts by mass of gypsum, 8.5 parts by mass of cement, 13 parts by mass of mineral powder, 15 parts by mass of water and 2.5 parts by mass of foaming agent.
Wherein the foaming agent is aerogel powder, lauryl sodium sulfate, fatty alcohol-polyoxyethylene ether sodium sulfate, silicone polyether, pectin and water according to a mass ratio of 0.25: 0.6: 0.7: 1: 0.5: 10 are mixed evenly at normal temperature.
Wherein, the foaming agent is preferably foamed by a high-pressure air method, the density of the foaming agent is 55-58 g/L, the bleeding rate is 25-35%, the settling distance is less than 5mm, the ph7-8 is preferred, and the ph value is 8.
Wherein, the gypsum is preferably desulfurized gypsum, and the mineral powder is alkaline mineral powder.
The biomass material comprises at least one of crop straws, tree branches and trunks and kitchen waste, and particularly the nitrogen-phosphorus-potassium ratio of the biomass material can be controlled to be (2-3): 1: (1.5-2) to be more suitable for plant growth, and preferably the ratio of nitrogen, phosphorus and potassium is 2.5:1: 1.5.
(3) Diluting the foaming agent by 50 times and foaming by 30 times to prepare a mixture of foam and aerogel;
(4) mixing the slurry obtained in the step 1 with gypsum, cement, mineral powder and water, uniformly stirring, heating for a period of time, cooling, then adding the mixture obtained in the step 3, uniformly stirring to obtain the solidified light soil, and then carrying out casting molding;
(5) and carrying out mold curing on the obtained cured light soil test block in a standard curing room for one day, and then demolding.
During testing, the demoulded solidified light soil test blocks are maintained to the corresponding age, the 28-day strength of the test blocks is measured by a full-automatic pressure tester at the speed of 100N/s, 3 test blocks are tested at each age, and the average value of the test blocks is taken as the uniaxial compression strength and the wet density of the filling body at the age.
Wherein, the shape of 3 test blocks is respectively cylindrical, square and plate-shaped structure. The test blocks in three different shapes can improve the test accuracy of the uniaxial compressive strength.
Example 2:
in the step 2, the raw materials are weighed according to the following components: 36 parts by mass of slurry, 4.5 parts by mass of gypsum, 8.8 parts by mass of cement, 14 parts by mass of mineral powder, 14 parts by mass of water and 2.67 parts by mass of foaming agent.
Wherein the foaming agent is aerogel powder, lauryl sodium sulfate, fatty alcohol-polyoxyethylene ether sodium sulfate, silicone polyether, pectin and water according to a mass ratio of 0.9: 0.8: 0.7: 1.1: 0.4: 10 are mixed evenly at normal temperature.
The other steps are the same.
Example 3:
in the step 2, the raw materials are weighed according to the following components: 40 parts by mass of slurry, 5 parts by mass of gypsum, 8.9 parts by mass of cement, 13.2 parts by mass of mineral powder, 13 parts by mass of water and 2.7 parts by mass of foaming agent.
Wherein the foaming agent is aerogel powder, lauryl sodium sulfate, fatty alcohol-polyoxyethylene ether sodium sulfate, silicone polyether, pectin and water according to a mass ratio of 2: 1: 0.65: 1.3: 0.8: 10 are mixed evenly at normal temperature.
The other steps are the same.
Example 4:
in the step 2, the raw materials are weighed according to the following components: 45 parts by mass of slurry, 6 parts by mass of gypsum, 8.9 parts by mass of cement, 13.5 parts by mass of mineral powder, 13.5 parts by mass of water and 2.2 parts by mass of foaming agent.
Wherein the foaming agent is aerogel powder, lauryl sodium sulfate, fatty alcohol-polyoxyethylene ether sodium sulfate, silicone polyether, pectin and water according to a mass ratio of 2.5: 0.9: 0.7: 1.3: 0.7: 10 are mixed evenly at normal temperature.
The other steps are the same.
Example 5:
in the step 2, the raw materials are weighed according to the following components: 50 parts by mass of slurry, 7 parts by mass of gypsum, 9.2 parts by mass of cement, 14.5 parts by mass of mineral powder, 12.5 parts by mass of water and 3.2 parts by mass of foaming agent.
Wherein the foaming agent is aerogel powder, lauryl sodium sulfate, fatty alcohol-polyoxyethylene ether sodium sulfate, silicone polyether, pectin and water according to a mass ratio of 2.6: 0.9: 0.8: 1.1: 0.8: 10 are mixed evenly at normal temperature.
The other steps are the same.
Table 1: results of Performance testing of examples
In conclusion, the invention adopts the waste sludge soil and the waste biomass material dug out by the construction of buildings, roads, bridges, hydraulic engineering and the like as the raw materials of the solidified light soil, effectively realizes the reutilization of wastes, reduces the pollution to the environment, simultaneously reduces the use of traditional materials such as soil, broken stones, lime, cement and the like on one hand, greatly reduces the production cost of the solidified light soil, and can carry out on-site pouring without transporting and transferring the waste sludge soil on the other hand, thereby greatly reducing the construction engineering cost, and being particularly suitable for ecological planting. The ecological solidified light soil has the characteristics of light weight and high strength, and the density of the ecological solidified light soil can be controlled to be 650g/cm3The strength is increased along with the increase of the density, and the mixing proportion of different densities and different strengths can be designed for construction according to construction requirements.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (10)
1. The preparation method of the ecological solidified light soil is characterized by comprising the following steps:
(1) breaking residual sludge, dregs and biomass materialsAdding water and stirring the mixture until the particle size is not more than 10mm until the density is 1400-1700g/cm3The slurry of (4);
(2) weighing the following components: 30-50 parts of slurry, 4-8 parts of gypsum, 8-10 parts of cement, 13-15 parts of mineral powder, 10-15 parts of water and 2-4 parts of foaming agent;
(3) diluting the foaming agent by 50 times and foaming by 30 times to prepare a mixture of foam and aerogel;
(4) mixing the slurry obtained in the step 1 with gypsum, cement, mineral powder and water, uniformly stirring, heating for a period of time, cooling, then adding the mixture obtained in the step 3, uniformly stirring to obtain the solidified light soil, and then carrying out casting molding;
(5) and carrying out mold curing on the obtained cured light soil test block in a standard curing room for one day, and then demolding.
2. The method for preparing eco-curing lightweight soil according to claim 1, wherein the slurry is left to stand at 20 to 30 ℃ for 5 to 10 days in step 1.
3. The method for preparing eco-curing lightweight soil according to claim 1, wherein the cured lightweight soil test block demolded in step 5 is cured to a corresponding age, 28-day strength is measured at a speed of 100N/s using a fully automatic compression tester, 3 test blocks are tested at each age, and the average value thereof is taken as uniaxial compression strength and wet density of the filler at the age.
4. The method for preparing ecological solidified lightweight soil according to claim 3, wherein the three test blocks have a cylindrical, square and plate-like structure.
5. The method for preparing ecological solidified light soil according to claim 1, wherein desulfurized gypsum is used as the gypsum in step 2, and alkaline mineral powder is used as the mineral powder.
6. The method for preparing ecological solidified lightweight soil according to claim 1, wherein the biomass material in step 1 comprises at least one of crop straw, tree branches and trunks, and kitchen waste.
7. The ecological solidified light soil is characterized by comprising the following components: residual sludge, gypsum, cement, mineral powder and a foaming agent, wherein,
30-50 parts by mass of slurry, wherein the slurry is formed by stirring residual sludge soil, biomass material and water, and the density is 1400-3；
4-8 parts by mass of gypsum;
8-10 parts by mass of cement;
13-15 parts by mass of mineral powder;
10-15 parts by mass of water;
2-4 parts by mass of a foaming agent;
the volume ratio of the total volume of the slurry, the gypsum, the cement and the mineral powder to the volume of the water to the volume of the foaming agent is 1: (0.3-0.7): (0.8-2);
the mass ratio of the slurry, the gypsum, the cement and the mineral powder is (5-8): (0.7-0.8):(0.8-1.3):(1.5-2.2).
8. The ecological curing light soil of claim 7, wherein the foaming agent comprises aerogel powder, sodium dodecyl sulfate, sodium fatty alcohol-polyoxyethylene ether sulfate, silicone polyether, pectin, and water,
the mass ratio of aerogel powder, sodium dodecyl sulfate, sodium fatty alcohol-polyoxyethylene ether sulfate, silicone polyether, pectin and water is (0.2-2.8): (0.5-1): (0.5-0.9): (1-1.3): (0.4-1): 10.
9. the eco-curing lightweight soil according to claim 7, wherein the foaming agent is foamed by a high pressure air method, and has a density of 55 to 58 g/L, a bleeding rate of 25 to 35%, a settling distance of <5mm, ph7 to 8.
10. The ecological solidified light soil of claim 7, wherein the biomass material comprises at least one of crop straws, tree branches and trunks and kitchen waste, the gypsum is desulfurized gypsum, and the mineral powder is alkaline mineral powder.
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| CN112851400A (en) * | 2021-03-10 | 2021-05-28 | 武汉广益交通科技股份有限公司 | Preparation method of geosynthetic material prestressed reinforcement assembled solidified slag soil block |
| CN113173769A (en) * | 2021-04-26 | 2021-07-27 | 江苏坤泽科技股份有限公司 | Chemical foaming sludge light soil and production method thereof |
| CN113880529A (en) * | 2021-11-17 | 2022-01-04 | 安徽科博建材科技有限公司 | Environment-friendly water-stable layer material and preparation method thereof |
| CN115474525A (en) * | 2022-09-24 | 2022-12-16 | 北京嘉博文生物科技有限公司 | Flower humus soil, preparation method thereof and flower planting method |
| CN115536353A (en) * | 2022-10-20 | 2022-12-30 | 湖南达生环保科技有限公司 | Preparation method of consolidated soil and bubble consolidated soil |
| CN115806417A (en) * | 2022-11-17 | 2023-03-17 | 上海申环环境工程有限公司 | Engineering muck curing agent and preparation method thereof |
| CN117003529A (en) * | 2023-10-07 | 2023-11-07 | 南京三合建环保科技有限公司 | Self-compacting ready-mixed fluid solidified soil and preparation method and application thereof |
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| CN115806417A (en) * | 2022-11-17 | 2023-03-17 | 上海申环环境工程有限公司 | Engineering muck curing agent and preparation method thereof |
| CN115806417B (en) * | 2022-11-17 | 2023-10-20 | 上海申环环境工程有限公司 | Engineering residue soil curing agent and preparation method thereof |
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