CN111470813A - Solidified soil using high molecular emulsion as soil solidifying agent and preparation method thereof - Google Patents
Solidified soil using high molecular emulsion as soil solidifying agent and preparation method thereof Download PDFInfo
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- CN111470813A CN111470813A CN202010217959.6A CN202010217959A CN111470813A CN 111470813 A CN111470813 A CN 111470813A CN 202010217959 A CN202010217959 A CN 202010217959A CN 111470813 A CN111470813 A CN 111470813A
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- soil
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Classifications
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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
- C04B28/02—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 hydraulic cements other than calcium sulfates
- C04B28/021—Ash cements, e.g. fly ash cements ; Cements based on incineration residues, e.g. alkali-activated slags from waste incineration ; Kiln dust cements
-
- 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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/2623—Polyvinylalcohols; Polyvinylacetates
-
- 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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/2641—Polyacrylates; Polymethacrylates
-
- 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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/2676—Polystyrenes
-
- 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
-
- 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
- C04B28/02—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 hydraulic cements other than calcium sulfates
- C04B28/10—Lime cements or magnesium oxide cements
Abstract
The invention discloses solidified soil taking polymer emulsion as a soil curing agent, which consists of the following raw materials in parts by weight: 1-3 parts of high-molecular emulsion, 45-50 parts of clay and 4-11 parts of inorganic curing agent, wherein the total weight of the high-molecular emulsion and the inorganic curing agent is 7-12 parts. This application is through adopting polymer emulsion to make soil curing agent reinforcing soil body intensity and improving soil body water stability, has solved clay intensity low itself, and water stability is poor and traditional soil curing agent quantity is big, with high costs, the energy consumption is big and environmental pollution big scheduling problem during secondary construction.
Description
Technical Field
The invention relates to the application field of high polymer material building engineering, in particular to solidified soil taking high polymer emulsion as a soil curing agent and a preparation method thereof.
Background
With the continuous development of traffic science and technology, the requirements on road grades are higher and higher. The clay used as building material has potential application value, has the advantages of wide raw material, low cost and the like, is widely applied to ground engineering such as highways, streets, airports and the like, and is also widely applied to structures of power and water conservancy engineering, such as canals, cofferdams, dams, substrates, retaining walls and the like. However, natural clay has low strength and poor water stability, and the application range of the natural clay is limited.
The soil solidifying agent is a clay additive with excellent performance, is a hydraulic cementing material prepared from various inorganic or organic materials and is characterized by specially solidifying soil. After being mixed with soil, the material can produce the functions of cementing soil grains, filling pores and the like through a series of physical and chemical reactions, and loose soil is converted into a compact cementing material, so that the properties of the soil, such as strength, durability and the like, can be greatly improved. As a novel road material, the material is gradually accepted and accepted by the masses of engineers. Such as cement, lime, or cement-lime soil solidifying agents, which belong to inorganic cementing materials, can form stable soil with certain strength after solidification, and are widely researched and used due to relatively stable performance. However, the use of these inorganic curing agents alone often requires the addition of a relatively large amount of inorganic curing agents, which results in a high overall cost, and in addition, the use of a large amount of inorganic curing agents causes the destruction of the soil structure, and the secondary construction has high energy consumption and causes great environmental pollution.
The high-molecular soil curing agent is a new product in soil curing agent ranks in recent years, and has better hydrophobicity after curing, so that the water stability of clay can be improved, and the high-molecular soil curing agent has the advantages of effectively improving the strength of a roadbed, increasing the bearing capacity of the roadbed, prolonging the service time of a road surface, reducing maintenance and the like. Particularly, for some low-grade highways or backfill projects, the inorganic soil curing agent is mixed with a small amount of cement, fly ash or lime and other inorganic soil curing agents, so that the using amount of the inorganic soil curing agent can be obviously reduced, and the economic benefit is more obvious under the condition of ensuring the integral quality of the projects to be unchanged.
Disclosure of Invention
The invention aims to: aiming at the problems that the conventional soil curing agents such as cement, lime or cement-lime are only used, and the like, a large amount of the conventional soil curing agents are usually added, so that the overall cost is high, meanwhile, the large amount of the inorganic soil curing agents are used to cause the damage of a soil body structure, the energy consumption is large during secondary construction, and the environmental pollution is large, so that the conventional soil curing agents are comprehensively considered to have great limitation on engineering application; provides solidified soil using high molecular emulsion as soil solidifying agent and its preparation method to strengthen soil body strength and improve soil body water stability.
The technical scheme adopted by the invention is as follows:
the solidified soil takes the polymer emulsion as a soil curing agent and consists of the following raw materials in parts by weight: 1-3 parts of high-molecular emulsion, 45-50 parts of clay and 4-11 parts of inorganic curing agent, wherein the total weight of the high-molecular emulsion and the inorganic curing agent is 7-12 parts.
Preferably, the polymer emulsion is any one of polyvinyl alcohol emulsion, butylbenzene emulsion and acrylic acid emulsion.
Preferably, the molecular weight of the polyvinyl alcohol emulsion is 70000-150000.
Furthermore, the polyvinyl alcohol has a melting temperature of 80-90 ℃ in water, so that high-temperature heating is required firstly
Preferably, the molecular weight of the butylbenzene emulsion is 5000-.
Preferably, the acrylic emulsion has a molecular weight of 50000-200000.
Preferably, the inorganic curing agent is one or more of cement, fly ash and CaO.
Preferably, the clay comprises one or more of montmorillonite, quartz sand and expansive soil.
A preparation method of solidified soil using polymer emulsion as soil solidifying agent comprises the following steps:
s1: weighing a certain part of polymer emulsion, heating and stirring until the solution is transparent;
s2: weighing a certain amount of clay and an inorganic curing agent, putting into a container, uniformly mixing, adding the transparent polymer emulsion obtained in the step S1 into the container, uniformly stirring, and finally adding into a mold for curing and molding to obtain the solidified soil.
Preferably, the curing time in the step S2 is 24-48 h.
Compared with the prior art, the invention has the beneficial effects that:
this application is through adopting polymer emulsion to make soil curing agent reinforcing soil body intensity and improving soil body water stability, has solved clay intensity low itself, and water stability is poor and traditional soil curing agent quantity is big, with high costs, the energy consumption is big and environmental pollution big scheduling problem during secondary construction.
Detailed Description
Example 1:
the solidified soil with high molecular emulsion as soil solidifying agent is prepared with the mixture of PVA emulsion and flyash as soil solidifying agent:
30ml of water containing 2g of polyvinyl alcohol emulsion are stirred and heated at 85 ℃ until the solution is transparent for further use. Then weighing 45g of clay, adding the clay into a 250ml beaker, then weighing 5g of water coal ash, adding 30ml of the prepared water containing 2g of polyvinyl alcohol emulsion into the beaker, stirring the mixture evenly at normal temperature, and finally adding the mixture into a mould to be solidified for 48 hours to obtain solidified soil.
Example 2:
the solidified soil with high molecular emulsion as soil solidifying agent has the mixture of PVA emulsion and cement as soil solidifying agent:
30ml of water containing 2g of polyvinyl alcohol emulsion are stirred and heated at 85 ℃ until the solution is transparent for further use. Then weighing 45g of clay, adding the clay into a 250ml beaker, weighing 5g of cement, adding 30ml of the prepared water containing 2g of polyvinyl alcohol emulsion into the beaker, stirring the mixture evenly at normal temperature, and finally adding the mixture into a mould to be solidified for 48 hours to obtain solidified soil.
Example 3:
the solidified soil with high molecular emulsion as soil solidifying agent is prepared with the mixture of PVA emulsion and flyash-CaO as soil solidifying agent:
30ml of water containing 2g of polyvinyl alcohol emulsion are stirred and heated at 85 ℃ until the solution is transparent for further use. Then weighing 45g of clay, adding the clay into a 250ml beaker, weighing 5g of 1:1 fly ash-CaO, adding 30ml of the prepared water containing 2g of polyvinyl alcohol emulsion into the beaker, stirring the mixture evenly at normal temperature, and finally adding the mixture into a mould to be solidified for 36 hours for forming, thus obtaining the solidified soil.
Example 4:
the solidified soil with high molecular emulsion as soil solidifying agent has the mixture of PVA emulsion and cement-CaO as soil solidifying agent:
30ml of water containing 2g of polyvinyl alcohol emulsion are stirred and heated at 85 ℃ until the solution is transparent for further use. Then weighing 45g of clay, adding the clay into a 250ml beaker, weighing 5g of 1:1 cement-CaO, adding 30ml of the prepared water containing 2g of polyvinyl alcohol emulsion into the beaker, stirring the mixture evenly at normal temperature, and finally adding the mixture into a mould to be solidified for 36 hours to obtain solidified soil.
Example 5:
the solidified soil with high molecular emulsion as soil solidifying agent is prepared with the mixture of PVA emulsion and cement-flyash-CaO as soil solidifying agent:
35ml of water containing 2g of polyvinyl alcohol emulsion are stirred and heated at 85 ℃ until the solution is transparent for further use. Then 50g of clay is weighed and added into a 250ml beaker, 6g of 1:1:1 cement-fly ash-CaO is weighed and added into the beaker, 30ml of water containing 2g of polyvinyl alcohol emulsion prepared in the previous step is added into the beaker, the mixture is stirred uniformly at normal temperature, and finally the mixture is added into a mould to be solidified for 24 hours to form, so that solidified soil is obtained.
Example 6:
the solidified soil with high molecular emulsion as soil solidifying agent is prepared with the mixture of PVA emulsion and cement-flyash-CaO as soil solidifying agent:
35ml of water containing 6g of polyvinyl alcohol emulsion are stirred and heated at 85 ℃ until the solution is transparent for further use. Then 50g of clay is weighed and added into a 250ml beaker, 6g of 1:1:1 cement-fly ash-CaO is weighed and added into the beaker, 30ml of water containing 2g of polyvinyl alcohol emulsion prepared in the previous step is added into the beaker, the mixture is stirred uniformly at normal temperature, and finally the mixture is added into a mould to be solidified for 24 hours to form, so that solidified soil is obtained.
Example 7:
the solidified soil with high molecular emulsion as soil solidifying agent is prepared with the mixture of acrylic emulsion and cement-flyash as soil solidifying agent:
firstly weighing 45g of clay and adding the clay into a 250ml beaker, then weighing 5g of 1:1 cement-fly ash and adding the cement-fly ash into the beaker, then adding 30ml of emulsion containing 2g of acrylic acid into the beaker, stirring the mixture evenly at normal temperature, and finally adding the mixture into a mould to be solidified for 36h and forming, thus obtaining the solidified soil.
Example 8:
the solidified soil with high molecular emulsion as soil solidifying agent is prepared with the mixture of acrylic emulsion and cement-flyash-CaO as soil solidifying agent:
firstly weighing 50g of clay, adding the clay into a 250ml beaker, then weighing 6g of 1:1:1 cement-fly ash-CaO, adding 35ml of emulsion containing 2g of acrylic acid into the beaker, stirring uniformly at normal temperature, and finally adding the emulsion into a mould to be solidified for 24h and molded, thus obtaining the solidified soil.
Example 9:
the solidified soil with high molecular emulsion as soil solidifying agent is prepared with the mixture of acrylic emulsion and cement-flyash-CaO as soil solidifying agent:
firstly weighing 50g of clay and adding the clay into a 250ml beaker, then weighing 6g of 1:1:1 cement-fly ash-CaO and adding the cement-fly ash-CaO into the beaker, then adding 35ml of emulsion containing 6g of acrylic acid into the beaker, stirring the emulsion uniformly at normal temperature, and finally adding the emulsion into a mould to be solidified for 24 hours to form the solidified soil.
Example 10:
the solidified soil with high molecular emulsion as soil solidifying agent is prepared with the mixture of butylbenzene emulsion and cement-flyash as soil solidifying agent:
firstly weighing 45g of clay and adding the clay into a 250ml beaker, then weighing 5g of 1:1 cement-fly ash and adding the cement-fly ash into the beaker, then adding 30ml of emulsion containing 2g of butylbenzene into the beaker, stirring the mixture evenly at normal temperature, and finally adding the mixture into a mould to be solidified for 36h and forming the mixture to obtain solidified soil.
Example 11:
the solidified soil with polymer emulsion as soil solidifying agent is prepared with the mixture of butylbenzene emulsion and cement-flyash-CaO as soil solidifying agent:
firstly weighing 50g of clay and adding the clay into a 250ml beaker, then weighing 6g of 1:1:1 cement-fly ash-CaO and adding the cement-fly ash-CaO into the beaker, then adding 35ml of emulsion containing 2g of butylbenzene into the beaker, stirring the mixture evenly at normal temperature, and finally adding the mixture into a mould to be solidified for 24 hours to form the solidified soil.
Example 12:
the solidified soil with polymer emulsion as soil solidifying agent is prepared with the mixture of butylbenzene emulsion and cement-flyash-CaO as soil solidifying agent:
firstly weighing 50g of clay and adding the clay into a 250ml beaker, then weighing 6g of 1:1:1 cement-fly ash-CaO and adding the cement-fly ash-CaO into the beaker, then adding 35ml of emulsion containing 6g of butylbenzene into the beaker, stirring uniformly at normal temperature, and finally adding the emulsion into a mould to be solidified for 24h and forming, thus obtaining the solidified soil.
Table 1 shows the compressive strength data of examples 1 to 6
| Examples | 1 | 2 | 3 | 4 | 5 | 6 |
| Compressive strength (MPa) | 2.3 | 2.5 | 2.7 | 3.0 | 4.9 | 5.7 |
| Examples | 7 | 8 | 9 | 10 | 11 | 12 |
| Compressive strength (MPa) | 3.7 | 4.5 | 5.3 | 3.5 | 4.3 | 4.9 |
The above-mentioned embodiments only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.
Claims (9)
1. The solidified soil using the high-molecular emulsion as the soil curing agent is characterized by comprising the following raw materials in parts by weight: 1-3 parts of high-molecular emulsion, 45-50 parts of clay and 4-11 parts of inorganic curing agent, wherein the total weight of the high-molecular emulsion and the inorganic curing agent is 7-12 parts.
2. The solidified soil using the polymer emulsion as the soil solidifying agent according to claim 1, wherein the polymer emulsion is any one of a polyvinyl alcohol emulsion, a styrene-butadiene emulsion and an acrylic emulsion.
3. The solidified soil using polymer emulsion as soil solidifying agent as defined in claim 1, wherein the molecular weight of the polyvinyl alcohol emulsion is 70000-150000.
4. The solidified soil using polymer emulsion as soil solidifying agent as defined in claim 1, wherein the molecular weight of the butylbenzene emulsion is 5000-150000.
5. The curing soil using polymer emulsion as soil curing agent as claimed in claim 1, wherein the molecular weight of the acrylic emulsion is 50000-200000.
6. The solidified soil using the polymer emulsion as the soil solidifying agent according to claim 1, wherein the inorganic solidifying agent is one or more of cement, fly ash and CaO.
7. The solidified soil using polymer emulsion as soil solidifying agent as claimed in claim 1, wherein the clay comprises one or more of montmorillonite, quartz sand, and expansive soil.
8. The method for preparing solidified soil by using the polymer emulsion as the soil solidifying agent according to any one of claims 1 to 7, which is characterized by comprising the following steps:
s1: weighing a certain part of polymer emulsion, heating and stirring until the solution is transparent;
s2: weighing a certain amount of clay and an inorganic curing agent, putting into a container, uniformly mixing, adding the transparent polymer emulsion obtained in the step S1 into the container, uniformly stirring, and finally adding into a mold for curing and molding to obtain the solidified soil.
9. The method for preparing solidified soil by using polymer emulsion as soil solidifying agent according to claim 8, wherein the solidifying time in step S2 is 24-48 h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010217959.6A CN111470813A (en) | 2020-03-25 | 2020-03-25 | Solidified soil using high molecular emulsion as soil solidifying agent and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010217959.6A CN111470813A (en) | 2020-03-25 | 2020-03-25 | Solidified soil using high molecular emulsion as soil solidifying agent and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113149592A (en) * | 2021-02-07 | 2021-07-23 | 杭州圣立新材料有限公司 | Early-strength soil stabilizer and preparation method and application thereof |
| CN114772878A (en) * | 2022-04-05 | 2022-07-22 | 浙江华东工程建设管理有限公司 | Rapid curing agent for pipe-jacking construction slurry and rapid curing method |
| CN114956762A (en) * | 2022-06-09 | 2022-08-30 | 湖北美畅环保科技有限公司 | Curing agent for purifying industrial solid waste and preparation method thereof |
| CN114989831A (en) * | 2022-05-12 | 2022-09-02 | 成都城投建筑科技投资管理集团有限公司 | Modified high-molecular polymer soil curing agent |
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| CN102093898A (en) * | 2009-12-11 | 2011-06-15 | 王莹莹 | Composite soil stabilizer |
| CN105198367A (en) * | 2015-08-17 | 2015-12-30 | 广州市建筑科学研究院有限公司 | Curing agent capable of rapidly curing sludge at room temperature and use method thereof |
| CN105442409A (en) * | 2015-12-31 | 2016-03-30 | 中城建第五工程局集团有限公司 | Waterborne epoxy stabilized soil, application thereof and stabilized soil road surface |
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2020
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS572389A (en) * | 1980-06-05 | 1982-01-07 | Toshima Kensetsu Kk | Reactant for soil stabilization and process therefor |
| CN102093898A (en) * | 2009-12-11 | 2011-06-15 | 王莹莹 | Composite soil stabilizer |
| CN105198367A (en) * | 2015-08-17 | 2015-12-30 | 广州市建筑科学研究院有限公司 | Curing agent capable of rapidly curing sludge at room temperature and use method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113149592A (en) * | 2021-02-07 | 2021-07-23 | 杭州圣立新材料有限公司 | Early-strength soil stabilizer and preparation method and application thereof |
| CN113149592B (en) * | 2021-02-07 | 2022-04-29 | 杭州圣立新材料有限公司 | Early-strength soil stabilizer and preparation method and application thereof |
| CN114772878A (en) * | 2022-04-05 | 2022-07-22 | 浙江华东工程建设管理有限公司 | Rapid curing agent for pipe-jacking construction slurry and rapid curing method |
| CN114989831A (en) * | 2022-05-12 | 2022-09-02 | 成都城投建筑科技投资管理集团有限公司 | Modified high-molecular polymer soil curing agent |
| CN114956762A (en) * | 2022-06-09 | 2022-08-30 | 湖北美畅环保科技有限公司 | Curing agent for purifying industrial solid waste and preparation method thereof |
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