CN105524620B - A kind of soil-solidified-agent - Google Patents
A kind of soil-solidified-agent Download PDFInfo
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- CN105524620B CN105524620B CN201511015639.8A CN201511015639A CN105524620B CN 105524620 B CN105524620 B CN 105524620B CN 201511015639 A CN201511015639 A CN 201511015639A CN 105524620 B CN105524620 B CN 105524620B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2103/00—Civil engineering use
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention discloses a kind of soil-solidified-agent, belong to building material technical field.Described soil-solidified-agent is made up of each component of following weight：4~6 parts of Portland cement, 25~35 parts of binding agent, 15~25 parts of reinforcing agent, 4~8 parts of early strength agent, 3~6 parts of waterproofing agent, 6~8 parts of filler, 1~3 part of water reducer, 3~7 parts of dispersant, 0.01~0.03 part of air entraining agent.Soil-solidified-agent disclosed in this invention has reasonable formula, penetration depth big (17mm), compression strength big (7 days unconfined compressive strength 12.23MPa), and water resistance is good (7 days immersion water absorption rates 0.85%), can be applied to the engineerings such as highway, railway, subway.
Description
Technical field
The present invention relates to a kind of soil-solidified-agent, belong to building material technical field.
Background technology
Soil-solidified-agent be it is a kind of by a variety of inorganic, organic materials synthesize be used for improve soil engineering technology
The composite of energy.It has that curing rate is fast, early strength is high, consolidation time is long, later strength is high, dosage is few, takes on the spot
Material, the advantages that engineering time and reduction construction costs is saved, in the engineering constructions such as highway, railway, subway, water conservancy, house
Have broad application prospects.
Existing soil-solidified-agent species is various, but by the evolution of curing agent can be divided into lime cement class curing agent,
Slag silicate salt curing agent, high polymer class curing agent and electron ion solution class curing agent.Wherein, high polymer class curing agent also wraps
Include the class curing agent such as various kinds of resin, fiber, surfactant.High polymer class curing agent, it is that one kind is changed using surfactant
Grogs surface hydrophilic property, or stereochemical structure parcel and cementing grogs are formed using crosslinked polymer, in the base of soil compression
On plinth, the soil-solidified-agent of preferable compression strength can be obtained.It has that volume is few, cost is low, easy for construction, soil early stage
The advantages of intensity and later stage strength of stability can meet requirement etc.；But it is poor there is also water repelling property, it is anxious to meet water intensity
Fall sharply the shortcomings that low.
In order to solve the bottleneck of such technology, people have carried out many studying and obtaining one to high polymer class curing agent
Fixed achievement, such as a kind of patent of invention " macromolecule organic soil curing agent and its synthetic method " (patent No.：CN 105038806
A) using 2-6 parts magnesium chloride, 4-8 parts calcium chloride, 0.3-0.8 parts calcium oxide, 0.3-0.8 parts magnesia, 3-8 parts acrylamide,
0.1-0.4 parts ammonium persulfate, 0.2-0.6 parts potassium peroxydisulfate, 10-20 parts soluble cellulose, 5-15 parts sodium carboxymethylcellulose,
0.5-1 parts sodium hydroxide, 50-70 parts water prepare macromolecule organic soil curing agent.Although it has simple to operate, cost is low
Honest and clean, quick, the advantages of green and stronger anti-pressure ability, but water repelling property still could not be efficiently solved enough.
A kind of and for example patent of invention " basic soil curing agent and its manufacture craft " (patent No.：The B of CN 102517033) profit
Basic soil curing agent is prepared with polyvinyl alcohol, sodium alginate, polyacrylamide, calcium chloride, aluminium hydroxide, distilled water.Though
So it has that construction technology is simple, and compression strength is high, and water stability is good, and freezing stability is good, energy-conserving and environment-protective, can extend road occupation
The advantages that life-span, but it is only applicable to basic soil, application is narrow, so as to limit promoting the use of for its.Together
When its not disclosing the data such as specific compression strength, water stability, freezing stability yet.
For another example patent of invention " high strong water resistant the composite soil stabilizer " (patent No.：The B of CN 102020990) utilize bonding group
Point, enhancing component, dispersant, waterproofing agent of organosilicon, filler prepare high strong water resistant composite soil stabilizer.Although it has good
Good water resistance and compression strength, and it is easy for construction, it is pollution-free, the engineerings such as building, roadbed, water conservancy are can be widely applied to, but
It is that its penetration depth is not so preferable, cured layer is easily broken through by rainwater and influences solidification effect, and then influences curing agent
Service life.Therefore, very important effect will be played to construction material by developing a kind of soil-solidified-agent.
The content of the invention
It is not so preferable technical problem for the above-mentioned penetration depth of soil-solidified-agent in the prior art, the present invention wants
The technical problem of solution is to propose that a kind of penetration depth is big, compression strength is big, and the soil-solidified-agent that water resistance is good.
It is of the invention to be for the taken technical scheme that solves the above problems：
A kind of soil-solidified-agent, it is made up of each component of following weight：4~6 parts of Portland cement, bond
25~35 parts of agent, 15~25 parts of reinforcing agent, 4~8 parts of early strength agent, 3~6 parts of waterproofing agent, 6~8 parts of filler, water reducer 1~3
Part, 3~7 parts of dispersant, 0.01~0.03 part of air entraining agent.
Preferably,
A kind of soil-solidified-agent, it is made up of each component of following weight：5 parts of Portland cement, binding agent
30 parts, 20 parts of reinforcing agent, 6 parts of early strength agent, 5 parts of waterproofing agent, 7 parts of filler, 2 parts of water reducer, 5 parts of dispersant, air entraining agent 0.02
Part.
Wherein, described binding agent is compound binding agent, by weight by polyurethane-modified polyacrylate composite glue powder
20~28 parts, 5~7 parts of sodium alginate mixes.
Described reinforcing agent is composite fortifier, fine by 4~8 parts of calcium sulfate, 8~12 parts of silicon ash, polypropylene by weight
3~5 parts of dimension mixes.
Described early strength agent is complex accelerator, mixed by 2~4 parts of triisopropanolamine, 2~4 parts of lithium hydroxide by weight
Conjunction forms.
Described waterproofing agent is composite water-proof agent, by weight by 1~2 part of aluminium chloride, 1~2 part of sodium metasilicate, methane-siliconic acid
1~2 part of sodium mixes.
Described filler is composite filler, is mixed by weight by 3~4 parts of talcum powder, 3~4 parts of perlite.
Described water reducer is high-efficiency water-reducing agent of poly-carboxylic acid；Described dispersant is hydroxyethyl cellulose；Described bleed
Agent is modified rosin resin.
Polyacrylate has the advantages that good cementability, weatherability, ageing-resistant performance, and polyurethane have it is resistance to low
The advantages that temperature, height adhesion, excellent water resistance, by acrylate and polyurethane carry out it is composite modified prepare it is polyurethane-modified
Polyacrylate composite glue powder, the shortcomings that respective can be overcome, glue film performance is significantly improved.When being added into soil
When middle, scattered soil particle good bond can be made together, and be not easy to peel off, so as to improve its intensity.Although sodium alginate
Adherence is small, but it has thickening, scattered, gelatification, and it is insoluble especially chemical reaction generation to occur with soil
Salt, and hole or space between soil particle are filled in, the intensity of solidified earth is can further improve, while it is anti-to improve it
Ooze, water-proof function.
Polypropylene fibre (5~8mm of length) has that intensity is high, the good characteristic such as acidproof, alkaline-resisting, antimicrobial, can be to soil
Earth plays reinforcement effect, and makes soil settlement uniform, reduces polygon ground.At the same time it can also change polyurethane-modified polypropylene
The mechanical property of acid esters composite glue powder, improve the performance of solidified earth.
With calcium ion (or calcium ion in soil), carboxylic acid ion in curing agent chemistry occurs for aluminium ion instead in aluminium chloride
Should, network-like complex is formed, soil particle can be made to be connected to become an entirety, improves the intensity of solidified earth.Sodium metasilicate can
Improve compactness, intensity, impermeability, frost resistance and water resistance of solidified earth etc..Its modulus is bigger, and viscosity is bigger, and cohesive force is just
It is stronger, but curing agent penetration depth can be influenceed.Therefore, the sodium metasilicate that modulus is 2.0~2.4 is chosen.When sodium methyl silicate enters
Chemically reacted after soil, so as to form excellent water-repellent layer, while also there is good penetrant crystalline, microdilatancy, increase
Compactness function.
Talcum powder has excellent lubricity and anti-stickiness, it is possible to increase the depth of curing agent permeable soil, so as to extend
The life-span of curing agent.Perlite can act on cementitious matters such as sodium metasilicate, cement, curing agent is had water resistance and thermal insulation
Can, wherein, it is heat-insulated to reduce between polymer atom or intermolecular chemical bond rupture.Perlite also has certain absorption simultaneously
Ability, the materials such as certain cation and hydrone can be adsorbed, improve curing agent performance.
High-efficiency water-reducing agent of poly-carboxylic acid, there is absorption-peptizaiton, lubrication and wetting action, can reduce in soil
Water content, curing agent penetration depth is improved, improve the intensity of solidified earth.Meanwhile it belongs to surfactant again, water can be reduced
Surface tension, improve curing agent penetration depth.In addition, tiny soil particle has certain surface energy and adsorption capacity,
It can be had an effect with surfactant, so as to replace intrinsic cation in soil, reduce soil micelle ξ potentials, native glue is thinned
Grain electric double layer thickness makes soil particle aggregation agglomerating, forms pellet and arenaceous qualitative structure, improves solidified earth intensity.
The beneficial effects of the invention are as follows：
The present invention is equipped with Portland cement, water reducer, dispersant, air entraining agent phase by using a variety of compounds
Under interaction, acquisition penetration depth is big, compression strength is big, and the soil-solidified-agent that water resistance is good.
First, lime cement class curing agent and high polymer class curing agent are used in combination, the defects of overcoming unitary class curing agent,
So as to improve the performance of curing agent；Secondly, polyurethane-modified polyacrylate composite glue powder and high-efficiency water-reducing agent of poly-carboxylic acid can
Form carboxylate radical, and carboxylate radical is negatively charged, can sweetening of the soil particle positive charge, ion exchange is realized, so as to improve
The intensity of solidified earth；Then, talcum powder lubricity, anti-stickiness and the interaction of water reducer lubrication property, improve curing agent infiltration
Depth, so as to extend curing agent service life；Finally, the cementitious matter such as perlite and sodium metasilicate, cement acts on, and has curing agent
Water resistance and heat-proof quality, so as to provide a stable integral system for high polymer, and then improve curing agent durability.
In addition, soil-solidified-agent disclosed in this invention has, formula is reasonable, penetration depth is big, compression strength is big, and resistance to
Water-based energy is good, can be applied to the engineerings such as highway, railway, subway.
Embodiment
Embodiment 1
In this implementation, the length 7mm of polypropylene fibre, the modulus of sodium metasilicate is 2.2；
A kind of soil-solidified-agent, it is made up of each component of following weight：5 parts of Portland cement, polyurethane
It is 24 parts of modified polyacrylate composite glue powder, 6 parts of sodium alginate, 6 parts of calcium sulfate, 10 parts of silicon ash, 4 parts of polypropylene fibre, three different
3 parts of Propanolamine, 3 parts of lithium hydroxide, 1 part of aluminium chloride, 2 parts of sodium metasilicate, 2 parts of sodium methyl silicate, 4 parts of talcum powder, 3 parts of perlite,
2 parts of high-efficiency water-reducing agent of poly-carboxylic acid, 5 parts of hydroxyethyl cellulose, 0.02 part of modified rosin resin.
Embodiment 2
In this implementation, the length 5mm of polypropylene fibre, the modulus of sodium metasilicate is 2.0；
A kind of soil-solidified-agent, it is made up of each component of following weight：4 parts of Portland cement, polyurethane
20 parts of modified polyacrylate composite glue powder, 5 parts of sodium alginate, 4 parts of calcium sulfate, 8 parts of silicon ash, 3 parts of polypropylene fibre, three isopropyls
It is 2 parts of hydramine, 2 parts of lithium hydroxide, 1 part of aluminium chloride, 1 part of sodium metasilicate, 1 part of sodium methyl silicate, 3 parts of talcum powder, 3 parts of perlite, poly-
1 part of carboxylic acid high efficiency water reducing agent, 3 parts of hydroxyethyl cellulose, 0.01 part of modified rosin resin.
Embodiment 3
In this implementation, the length 8mm of polypropylene fibre, the modulus of sodium metasilicate is 2.4；
A kind of soil-solidified-agent, it is made up of each component of following weight：6 parts of Portland cement, polyurethane
It is 28 parts of modified polyacrylate composite glue powder, 7 parts of sodium alginate, 8 parts of calcium sulfate, 12 parts of silicon ash, 5 parts of polypropylene fibre, three different
4 parts of Propanolamine, 4 parts of lithium hydroxide, 2 parts of aluminium chloride, 2 parts of sodium metasilicate, 2 parts of sodium methyl silicate, 4 parts of talcum powder, 4 parts of perlite,
3 parts of high-efficiency water-reducing agent of poly-carboxylic acid, 7 parts of hydroxyethyl cellulose, 0.03 part of modified rosin resin.
In addition, the effect of in order to illustrate soil-solidified-agent of the present invention, applicant carried out following performance test：
Test example 1：Compression strength and immersion absorptivity
Using sandy soil as basic soil sample, 2.36mm round-hole meshes are crossed using preceding, by the embodiment of the present invention 1~3 and contrast
(it is curing agent, the use of comparative example 2 high polymer soil solidification in the prior art that comparative example 1 uses Portland cement 32.5 to example
Agent, its main component are ethylene-vinyl acetate copolymer etc.) curing agent be added to soil to be reinforced with certain proportion respectively
In earth, according to routine Consolidation Agent Reinforced Earth engineering construction method construct, then according to《Highway engineering stabilized with inorganic binder
Testing of materials code》(JTJ057-94) the 7 days unconfined compressive strengths and 7 days immersion water absorption rates of compacted soil, detection are determined respectively
It the results are shown in Table 1.
Table 1 is 7 days compression strength of curing agent and 7 days immersion water absorption rate testing results
| Curing agent type | Curing agent：Soil | 7 days unconfined compressive strengths (MPa) | 7 days immersion water absorption rates (%) |
| Embodiment 1 | 10：90 | 12.23 | 0.85 |
| Embodiment 2 | 10：90 | 11.64 | 0.89 |
| Embodiment 3 | 10：90 | 11.58 | 0.91 |
| Comparative example 1 | 10：90 | 2.83 | 2.54 |
| Comparative example 2 | 10：90 | 10.18 | 0.98 |
As can be seen from Table 1, compared with prior art, the present invention has high compression strength, low immersion water absorption rate, this
The intensity and water resistance of compacted soil can be significantly improved by indicating curing agent provided by the present invention.
Test example 2：Frost resistance
This experiment is referring especially to concrete antifreezing performance test method in the prior art, to the embodiment of the present invention 1~3 and right
(comparative example 1 uses Portland cement 32.5 to consolidate for curing agent, comparative example 2 using high polymer soil in the prior art to ratio
Agent, its main component are ethylene-vinyl acetate copolymer etc.) curing agent carry out anti-freezing property detection, testing result is shown in
Table 2.
Table 2 is curing agent frost resistance testing result
As can be seen from Table 2, compared with prior art, the present invention has low loss of strength rate, and this demonstrate the present invention
The curing agent provided has good anti-freezing property.
Test example 3：Water stability coefficient, penetration depth, infiltration coefficient
Referring especially to prior art, to the embodiment of the present invention 1~3 and comparative example 1, (comparative example 1 uses prior art for this experiment
Middle high polymer soil-solidified-agent, its main component are ethylene-vinyl acetate copolymer etc.) curing agent carry out water stability system
Number, penetration depth, infiltration coefficient detection, testing result are shown in Table 3.
Table 3 is curing agent performance test results
| Curing agent type | 7 sky and water stability coefficients (%) | Penetration depth (mm) | Infiltration coefficient (cm/s) |
| Embodiment 1 | 92.3 | 17 | 8×10-9 |
| Embodiment 2 | 91.8 | 16 | 9×10-9 |
| Embodiment 3 | 90.9 | 15 | 9×10-9 |
| Comparative example 1 | 87.2 | 11 | 1×10-8 |
As can be seen from Table 3, compared with prior art, the present invention have high water stability coefficient, big penetration depth,
Low infiltration coefficient, this demonstrate curing agent provided by the present invention to have good water stability, durability, impermeability.
Certainly, it is that the preferred embodiments of the disclosure is described in detail above, the present invention is not limited with this
Practical range, the equivalence changes that all principle, construction and structure under this invention are made, all should be covered by the present invention protection
In the range of.
Claims (2)
- A kind of 1. soil-solidified-agent, it is characterised in that：It is made up of each component of following weight：Portland cement 4 ~6 parts, 25~35 parts of binding agent, 15~25 parts of reinforcing agent, 4~8 parts of early strength agent, 3~6 parts of waterproofing agent, 6~8 parts of filler, subtract 1~3 part of aqua, 3~7 parts of dispersant, 0.01~0.03 part of air entraining agent；Wherein, described binding agent is compound binding agent, by weight by polyurethane-modified polyacrylate composite glue powder 20~ 28 parts, 5~7 parts of sodium alginate mixes；Described reinforcing agent is composite fortifier, by weight by 4~8 parts of calcium sulfate, 8~12 parts of silicon ash, polypropylene fibre 3~ 5 parts mix；Described early strength agent is complex accelerator, by weight by 2~4 parts of 2~4 parts of triisopropanolamine, lithium hydroxide mixing Into；Described waterproofing agent is composite water-proof agent, by weight by 1~2 part of aluminium chloride, the sodium metasilicate 1~2 of modulus 2.0~2.4 Part, 1~2 part of sodium methyl silicate mix；Described filler is composite filler, is mixed by weight by 3~4 parts of talcum powder, 3~4 parts of perlite；Described water reducer is high-efficiency water-reducing agent of poly-carboxylic acid；Described dispersant is hydroxyethyl cellulose；Described air entraining agent is Modified rosin resin.
- 2. soil-solidified-agent according to claim 1, it is characterised in that：It is made up of each component of following weight： 5 parts of Portland cement, 30 parts of binding agent, 20 parts of reinforcing agent, 6 parts of early strength agent, 5 parts of waterproofing agent, 7 parts of filler, water reducer 2 Part, 5 parts of dispersant, 0.02 part of air entraining agent.
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| CN105524620B true CN105524620B (en) | 2018-02-23 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7027105B2 (en) * | 2017-10-06 | 2022-03-01 | 株式会社日本触媒 | Cement composition |
| CN107916112A (en) * | 2017-10-26 | 2018-04-17 | 连云港世博工程设计研究院有限公司 | A kind of soil curing agent |
| CN107915459B (en) * | 2017-12-01 | 2020-07-14 | 江苏爱佳福如土壤修复有限公司 | Soil stabilizer |
| CN108707460B (en) * | 2018-06-15 | 2020-11-10 | 中国铁道科学研究院铁道建筑研究所 | Soil curing agent and preparation method thereof |
| CN109135761A (en) * | 2018-10-12 | 2019-01-04 | 西安同鑫伟业环保科技有限公司 | A kind of environment-friendly novel soil-solidified-agent |
| CN109761575B (en) * | 2019-03-06 | 2020-06-23 | 山东大学 | TRD continuous wall curing agent and using method and application thereof |
| CN112459035A (en) * | 2020-11-25 | 2021-03-09 | 中国水利水电第七工程局有限公司 | Treatment method of municipal pipe network construction muck with remarkable tensile effect |
| CN115636650A (en) * | 2021-07-20 | 2023-01-24 | 浙江省水利河口研究院(浙江省海洋规划设计研究院) | Soil curing agent and preparation method thereof |
| CN115849773B (en) * | 2022-08-10 | 2024-02-13 | 河南土化石环保建材有限公司 | Soil curing agent and preparation method thereof |
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