CN102643652B - High osmosis type soil hardener and application method thereof - Google Patents
High osmosis type soil hardener and application method thereof Download PDFInfo
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- CN102643652B CN102643652B CN201210112134.3A CN201210112134A CN102643652B CN 102643652 B CN102643652 B CN 102643652B CN 201210112134 A CN201210112134 A CN 201210112134A CN 102643652 B CN102643652 B CN 102643652B
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Abstract
The invention discloses a high osmosis type soil hardener, which is bicomponent seriflux containing materials of hardener and main liquid, and is characterized in that the volume ratio of hardener to main liquid is 1: (0.8-2). Since bicomponent seriflux disclosed by the invention is aqueous solution with low viscosity, the bicomponent seriflux can effectively seep into a small gap of 0.001mm, and good hardening of soil can be realized; the strength of sodium silicate in the components is large by hardening of acidity and ester materials, additionally, soil plays a role of enhancement, so that the strength of consolidation materials reaches around 10-15MPa; by the adoption of polyacrylic acid materials and polyacrylic ester materials as hardener for sodium silicate, the tenacity is good, additionally, certain amount of flexible materials such as polyacylamide are used for increasing the tenacity of sodium silicate hardener, certain tenacity of sodium silicate hardener is realized after hardening soil, the mechanical property of hardened soil can be increased; and the hardener disclosed by the invention is low in cost, non-toxic and environmental-friendly.
Description
Technical field
The invention belongs to building material field, be specifically related to a kind of high osmosis type soil-solidified-agent and and using method with good solidification soil effect.
Technical background
Soil-solidified-agent refers to the material that can improve soil body physical and mechanical properties.20 beginnings of the century, some developed countries have adopted soil stabilization to improve the soil body in building the engineerings such as road, harbour, airport and antiseepage, have obtained good effect.20 century 70s, the countries such as U.S., day, moral have carried out profound exploitation to soil improvement technology, state of the art has obtained rapid progress, the material of modified soil is by original single lime, cement, flyash and water glass etc., develops into be used for specially the novel material-soil-solidified-agent of soil mass consolidation.Abroad oneself is widely used in the every field such as road, civil construction, environment protection, farmland water conservancy works at present.The U.S., Japan are the research most active countries of this material, for example the road nation (ROADBOND) of U.S.'s Palma company, Lu Tegu (ROADGOOD), solidify enzyme, day Honda bear Aughset of company series soil body solidifying agent etc.
Over nearly 20 years, soil stabilization has obtained development at a high speed, and a series of soil curing materials are developed, developed to Chinese scholars, from different engineering application purposes,, for reinforcing various types of soil.The nineties in 20th century, China introduces soil-solidified-agent as new high-tech product, and in conjunction with the soil characteristic of deifferent regions.China, more domestic units have started research and the exploration of soil-solidified-agent modification.China Geological Univ. Wuhan, Yangtze River company of Changjiang Academy of sciences, Beijing University of Civil Engineering and Architecture, Shandong University, Wuhan Water Conservancy and Electric Power Univ, South China Science & Engineering University, Chenguang Chemical Inst., Ministry of Chemical Industry and china academy of railway sciences etc., obtained a collection of experimental study achievement, what have also makes overtesting on some railways, highway, has obtained good benefit.Test shows, soil-solidified-agent generally can improve native intensity, density, water stability, weather resistance, frost resistance, reduces native plasticity and perviousness.At present, the domestic main unit that is engaged in this respect research has Lanzhou University, Beijing special Saite difficult to understand, Hainan to build the solid nation in car, Peking University, Zhejiang University and Beijing etc.
External soil-solidified-agent mainly contains ROADBO DEN-1, CBRPLUS, RoadPaekerPlus etc.ROADBO DEN-1 is the road solidifying agent that U.S. C.S.S company produces, and strong oxidizer, strong solvating agent and dispersion agent, consists of.There is non-volatile, non-combustible, to dilute rear safety, environmental protection feature.By cementing, ion exchange, strengthen the adsorptive power between grogs, reduce hole, curing soil strength can improve 40%-60%.The high soil of the new property of suitable reinforcing soil content, is less than 10 native effect undesirable, if can obtain good consolidation effect mix vigorous soil, gravel, traditional solidifying agent in these soil after for the high soil of sand content or plasticity index.ROADBO DEN-1 is fully mixed with ordinary Portland cement or flyash, can increase substantially its intensity.Under equal conditions, can reduce cement or flyash consumption 50%, cost saving 30%-40%.ROADBO DEN-1 also can be used to improvement by petroleum chemicals contaminated soils such as gasoline, diesel oil, benzene,toluene,xylene, ethane benzene.
The CBRpLus solidifying agent of CBRpLUSNorthAmerieaIne, production, is the thick concentrated liquid of Vandyke brown, has feature corrosion-free, nontoxic, environmental protection.It forms chemical bond at vigorous native Surface Creation oily layer with grogs surface, fixedly has the ion of exchangeability.By ion-exchange, the planar water in grogs is slowly discharged on the other hand, can forever change the wetting ability of new soil, roll the fine and close soil body of rear formation; Connection between grogs has improved its intensity and degree of compactness, has reduced perviousness.Open-minded soil and the mud of the suitable reinforcing Liquidity limit of this product.For without vigorous property soil, as sand, only mix appropriate vigorous soil material and just can play reinforcement effect.CBRPLUS is mainly used in road engineering, can improve soil strength, water stability and reinforcing CBR CBR, has the feature of easy construction, good economy performance and environmental protection.Oneself has the history of more than 20 year the use of CBRPLUS on highway, is adopted as the prefered method of making backroad in development country by the World Bank.
RoadPackerPlus reinforces vigorous soil by ion exchange, makes the soil body closely knit, and water ratio reduces, the permanent wetting ability that changes vigorous soil.The soil that the content that suitable curing linear shrinkage ratio is greater than 2%, particle diameter is less than 0.075 mm is greater than 15%, pH value is less than 7, when linear shrinkage ratio is less than 2% or when breast grain content is few, can mix a certain amount of vigorous soil material.More than 20 year of past in many countries use in road engineering, can improve CBR value, density, intensity, compactibility, reduce plasticity, shrinkability, wetting ability etc.In addition, the curing enzyme of U.S.'s Palma company and Australian ISS etc. are representative kinds.
Along with the develop rapidly of China's Road construction, the domestic development and application that also starts to rise ion soil solidify material.Zhang Huifen etc. utilize analytical procedure in modern age (XRD, IR, Raman, MASNMR, TEM, AFM and SEM), and surface tissue and character before and after native mineral (kaolinite, montmorillonite and the illite) passivation of slitting have been carried out to systematic study.Modification by tensio-active agent to the surface composition of the native mineral of breast, electric charge and microtexture, makes diligent native mineral be transformed into hydrophobicity by wetting ability, suppresses and reduces its water ratio, makes vigorous soil meet no longer water-swelling after water, thereby keeps the stability of soil.
Peng Bo etc. are by the experimental study to based on the theoretical Liquid Stabilizer Reinforced Soil of developing of electrostatic double layer, analyzed the Strength Forming Mechanism of polymeric surface active agent compacted soil, studied the pavement performance of Consolidation Agent Reinforced Earth, and with Lime Stabilization, surface tissue and character before and after native mineral (kaolinite, montmorillonite and the illite) passivation of slitting have been carried out to systematic study, by comparative analysis, show that polymeric surface active agent compacted soil has the pavement performance that is better than Lime Stabilization soil.Modification by tensio-active agent to the surface composition of the native mineral of breast, electric charge and microtexture, make diligent native mineral be transformed into hydrophobicity by wetting ability, suppress and reduce its water ratio, make vigorous soil meet no longer water-swelling after water, thereby the stability that keeps soil, research surface: tensio-active agent is in the absorption of solid-liquid interface, except being decided by the character of itself, also be decided by the character of solid, the pH value of solution and temperature etc., this is the domestic ISS product of developing voluntarily first.
Though the soil solidifying agent to reinforce soil technology of current China has been applied to traffic route engineering and water conservancy Canal Seepage Control Project, but the shortcomings such as the soil solidifying agent to reinforce soil ubiquity intensity of using is low, impermeability is poor and frost resistance is poor, most Consolidation Agent Reinforced Earths do not reach the requirement of engineering to weather resistance.Because China's soil property is complicated and changeable, the soil stabilization of introduction is difficult to adapt to the requirement of various soil types.At present, the soil curing material of exploitation excellent performance is the direction that domestic and international project circle is tried to explore.Visible, the Novel curing agent that research, exploitation are applicable to China's soil property must bring great economic benefit and social benefit, promotes the development of China's compacted soil technology, expands range of application and the use scale of China's compacted soil technology.
From above-mentioned analysis, soil-solidified-agent is a kind of very important material of construction, in the development of the national economy, playing the part of very important role, yet at present conventional soil-solidified-agent exists that poor permeability, consolidation strength are low, the easy shortcoming such as crisp, contaminate environment.
Summary of the invention
The object of this invention is to provide a kind of high osmosis type soil-solidified-agent, its viscosity is low, good penetrability, and consolidation strength is high, is conducive to environment protection.
Another object of the present invention is to provide the using method of described high osmosis type soil-solidified-agent.
A kind of high osmosis type soil-solidified-agent of the present invention, contains solidifying agent material and main liquid material, is two-pack slurries, it is characterized in that:
The mass percent of described each component of solidifying agent material is
SODIUM PHOSPHATE, MONOBASIC 5%～20%,
Sodium hydrogen phosphate 10%～20%,
Polyacrylamide 2%～8%,
Sodium lauryl sulphate 1%～5%,
Polyacrylic material 5%～10%,
Polyacrylate(s) material 10%～60%,
Water reducer 1%～5%,
Water 30%～60%,
The mass percent sum of said components is 100%;
Described main liquid material is that mass concentration is the aqueous solution of 20%～60% water glass; Described water glass is that sodium is that water glass, potassium are one or both in water glass;
Described solidifying agent material: the volume ratio of described main liquid material is 1: 0.8～2.
Further, described polyacrylic material is a kind of in polyacrylic acid, polymethyl acrylic acid or two kinds.
Further, described polyacrylate(s) material is one or several in polymethylmethacrylate, polymethyl acrylate, polyisobutyl methacrylate, polyethyl acrylate, polyethyl methacrylate, Poly(Hydroxyethyl Methacrylate), poly hydroxy ethyl acrylate.
Further, described water reducer is one or more in lignosulfonic acid sodium salt water reducer, naphthalene series high-efficiency water-reducing agent, aliphatic high-efficiency water reducing agent, amino high efficiency water reducing agent, high-efficiency water-reducing agent of poly-carboxylic acid.
The using method of described a kind of high osmosis type soil-solidified-agent, is characterized in that: described two-pack slurries adopt single slurry filling mode to carry out fixed to soil; Described single slurry filling mode is to being that main liquid material and solidifying agent material are first mixed and obtain two-pack slurries according to 1: 0.8～2 volume percent before use, then by the two-pack slurry filling obtaining in soil, form induration;
The using method of described a kind of high osmosis type soil-solidified-agent, is characterized in that: described two-pack slurries adopt two slurry filling modes to carry out fixed to soil; Described pair of slurry filling mode is by solidifying agent material: the volume ratio of described main liquid material is 1: 0.8～2 to measure respectively the slurries of main liquid material and the slurries of solidifying agent material, adopt the two tubes difference slurries to the slurries of the main liquid material of soil-perfusion and solidifying agent material simultaneously, the slurries of main liquid material and the slurries of solidifying agent material are mixed in soil, then, then reaction form induration.
In the engineering that described high osmosis type soil-solidified-agent is mainly used in road basis, watches out for reinforcing, tunnel antiseepage, soil conservation, pile foundation reinforcement etc. need to be reinforced soil.
The present invention compared with prior art has advantages of as follows:
(1) soil-solidified-agent is mainly divided at present: and mineral compound class (be mainly cement, flyash, lime or industrial ore deposit are assorted etc.); Biological enzyme; Ion-exchange class and macromolecule emulsion class.Wherein mineral compound class is most popular soil-solidified-agent, but it exists a very large defect, and that is exactly that viscosity is larger, thereby is being difficult to be penetrated in the micro-cracks of soil, is therefore difficult to realize the good solidification of soil.And two component soil-solidified-agents that the present invention uses are all aqueous solution types, with respect to traditional mineral compound class or polymer firming agent for soil, its viscosity is very low, can effectively infiltrate in the finedraw of 0.001mm, thereby realize the good solidification of soil.
(2) consolidation strength of this soil-solidified-agent is large, the present invention be mainly utilize the acidic substance of solidifying agent the inside and lipid material by soil consolidation in the three-dimensional network of water glass, water glass is very large in the lower intensity of solidifying of acid and Ester, add the reinforced effects that soil plays inside, can make the intensity of induration reach 10～15MPa left and right, obviously be better than the normal soil solidifying agent of use in the market.
(3) soil-solidified-agent provided by the invention has certain toughness after solidifying, conventional acidic substance, and after the sodified water glass such as example hydrochloric acid, formed induration is very crisp, makes the soil function after fixed also very crisp, thereby can affect construction effect.And the present invention adopts polyacrylic material and polyacrylate(s) material as the solidifying agent of water glass, the prepared water glass induration of water glass curing agent of this polymer-type has good toughness, adding certain flexibility material as polyacrylamide etc. in addition, improve the toughness of water glass curing agent, thereby make to there is certain toughness after its curing soil, can improve the mechanical property of the soil after solidifying.
(4) raw material of the present invention is easy cheap industrial chemicals, and be all non-toxic, environmental friendly, therefore the green non-pollution of hypertonicity soil-solidified-agent provided by the invention, with low cost, technique is simple, has good effect and development prospect.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
case study on implementation one:
Solidifying agent material: SODIUM PHOSPHATE, MONOBASIC 5g, sodium hydrogen phosphate 10g, polyacrylamide 8g, sodium lauryl sulphate 1g, polyacrylic acid 5g, polymethylmethacrylate 40g, lignosulfonic acid sodium salt water reducer 1g, water 30g;
Main liquid material: sodium is water glass, its mass concentration is 60%.
Adopt single liquid slurry method for filling, according to solidifying agent material: the volume ratio of main liquid material measures at 1: 0.8, mixes, and is then filled in soil and goes immediately, and its ultimate compression strength of second day sampling and testing is 10MPa.
case study on implementation two:
Solidifying agent material: SODIUM PHOSPHATE, MONOBASIC 5g, sodium hydrogen phosphate 20g, polyacrylamide 8g, sodium lauryl sulphate 2g, polymethyl acrylic acid 5g, polyisobutyl methacrylate 20g, naphthalene series high-efficiency water-reducing agent 2g, water 60g;
Main liquid material: potassium is water glass, its mass concentration is 50%.
Adopt biliquid slurry method for filling, according to solidifying agent material: the volume ratio of main liquid material measures at 1: 1, adopt respectively two-tubely according to same speed, to be filled in soil and to go, its ultimate compression strength of second day sampling and testing is 12MPa.
case study on implementation three:
Solidifying agent material: SODIUM PHOSPHATE, MONOBASIC 5g, sodium hydrogen phosphate 20g, polyacrylamide 8g, sodium lauryl sulphate 2g, polyacrylic acid 5g, polymethyl acrylate 20g, high-efficiency water-reducing agent of poly-carboxylic acid 2g, water 60g;
Main liquid material: sodium is water glass, its mass concentration is 40%.
Adopt biliquid slurry method for filling, according to solidifying agent material: the volume ratio of main liquid material measures at 1: 1, adopt respectively two-tubely according to same speed, to be filled in soil and to go, its ultimate compression strength of second day sampling and testing is 14.5MPa.
case study on implementation four:
Solidifying agent material: SODIUM PHOSPHATE, MONOBASIC 5g, sodium hydrogen phosphate 20g, polyacrylamide 8g, sodium lauryl sulphate 2g, polyacrylic 5g, polyethyl acrylate 20g, aliphatic high-efficiency water reducing agent 2g, water 60g;
Main liquid material: potassium is water glass, its mass concentration is 30%.
Adopt single liquid slurry method for filling, according to solidifying agent material: the volume ratio of main liquid material measures at 1: 1.5, mixes, and is then filled in soil and goes immediately, and its ultimate compression strength of second day sampling and testing is 15MPa.
case study on implementation five:
Solidifying agent material: SODIUM PHOSPHATE, MONOBASIC 20g, sodium hydrogen phosphate 20g, polyacrylamide 8g, sodium lauryl sulphate 5g, polymethyl acrylic acid 10g, poly hydroxy ethyl acrylate 10g, amino high efficiency water reducing agent 1g, water: 30g;
Main liquid material: sodium is that water glass and potassium are water glass composition (the two mass ratio 1:1), and its mass concentration is 20%.
Adopt single liquid slurry method for filling, according to solidifying agent material: the volume ratio of main liquid material measures at 1: 1.2, mixes, and is then filled in soil and goes immediately, and its ultimate compression strength of second day sampling and testing is 10MPa.
Above-described embodiment is preferably embodiment of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under spirit of the present invention and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection scope of the present invention.
Claims (3)
1. a high osmosis type soil-solidified-agent, contains solidifying agent material and main liquid material, is two-pack slurries, it is characterized in that:
The mass percent of described each component of solidifying agent material is
SODIUM PHOSPHATE, MONOBASIC 5%～20%,
Sodium hydrogen phosphate 10%～20%,
Polyacrylamide 2%～8%,
Sodium lauryl sulphate 1%～5%,
Polyacrylic material 5%～10%,
Polyacrylate(s) material 10%～60%,
Water reducer 1%～5%,
Water 30%～60%,
The mass percent sum of said components is 100%;
Described main liquid material is that mass concentration is the aqueous solution of 20%～60% water glass; Described water glass is that sodium is that water glass, potassium are one or both in water glass;
Described solidifying agent material: the volume ratio of described main liquid material is 1: 0.8～2;
Described polyacrylic material is a kind of in polyacrylic acid, polymethyl acrylic acid or two kinds;
Described polyacrylate(s) material is one or several in polymethylmethacrylate, polymethyl acrylate, polyisobutyl methacrylate, polyethyl acrylate, polyethyl methacrylate, Poly(Hydroxyethyl Methacrylate), poly hydroxy ethyl acrylate;
Described water reducer is one or more in lignosulfonic acid sodium salt water reducer, naphthalene series high-efficiency water-reducing agent, aliphatic high-efficiency water reducing agent, amino high efficiency water reducing agent, high-efficiency water-reducing agent of poly-carboxylic acid.
2. a kind of using method of high osmosis type soil-solidified-agent as claimed in claim 1, is characterized in that: described two-pack slurries adopt single slurry filling mode to carry out fixed to soil; Described single slurry filling mode is that main liquid material and solidifying agent material are first mixed and obtain two-pack slurries according to 1: 0.8～2 volume percent before use, then by the two-pack slurry filling obtaining in soil, form induration.
3. a kind of using method of high osmosis type soil-solidified-agent as claimed in claim 1, is characterized in that: described two-pack slurries adopt two slurry filling modes to carry out fixed to soil; Described pair of slurry filling mode is by solidifying agent material: the volume ratio of described main liquid material is 1: 0.8～2 to measure respectively the slurries of main liquid material and the slurries of solidifying agent material, adopt the two tubes difference slurries to the slurries of the main liquid material of soil-perfusion and solidifying agent material simultaneously, the slurries of main liquid material and the slurries of solidifying agent material are mixed in soil, then, then reaction form induration.
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| CN105419815B (en) * | 2015-12-29 | 2018-06-29 | 吕贵松 | A kind of polymeric soil curing agent |
| CN105623671B (en) * | 2015-12-29 | 2018-06-29 | 吕贵松 | A kind of water-fast soil-solidified-agent |
| CN105524620B (en) * | 2015-12-29 | 2018-02-23 | 吕贵松 | A kind of soil-solidified-agent |
| CN105622016B (en) * | 2015-12-29 | 2018-02-23 | 吕贵松 | A kind of composite soil stabilizer |
| CN105602571B (en) * | 2015-12-29 | 2018-06-29 | 吕贵松 | A kind of polymer soil-solidified-agent |
| CN106348681A (en) * | 2016-08-22 | 2017-01-25 | 桂林新艺制冷设备有限责任公司 | Soil solidifying agent and preparation method thereof |
| CN107711401A (en) * | 2017-09-28 | 2018-02-23 | 兰新良 | A kind of method for preventing landslide using leaflet banyan |
| CN108329926A (en) * | 2018-05-12 | 2018-07-27 | 黄河勘测规划设计有限公司 | A kind of organic inorganic hybridization type soil waterproofing agent |
| 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 |
| CN111676024A (en) * | 2020-06-18 | 2020-09-18 | 江苏山水国土资源开发工程有限公司 | Novel liquid anti-seepage channel construction material, construction process and construction equipment |
| CN112830758B (en) * | 2021-02-26 | 2022-07-22 | 何旭阳 | Environment-friendly soil stabilizer and preparation method thereof |
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| CN102031119A (en) * | 2010-11-25 | 2011-04-27 | 湖南路捷能源科技有限公司 | Soil curing agent directly processing soil into surface layer of road |
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| CN102031119A (en) * | 2010-11-25 | 2011-04-27 | 湖南路捷能源科技有限公司 | Soil curing agent directly processing soil into surface layer of road |
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