CN102031119B - Soil curing agent directly processing soil into surface layer of road - Google Patents
Soil curing agent directly processing soil into surface layer of road Download PDFInfo
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- CN102031119B CN102031119B CN201010557635.3A CN201010557635A CN102031119B CN 102031119 B CN102031119 B CN 102031119B CN 201010557635 A CN201010557635 A CN 201010557635A CN 102031119 B CN102031119 B CN 102031119B
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- soil
- curing agent
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Abstract
The invention discloses a soil curing agent directly processing soil into the surface layer of a road and provides an environment-friendly soil curing agent, which has very obvious soil curing performance and wide practicability and is simple in construction. Particularly, when field soil is directly processed into the surface layer of a road by the soil curing agent and the composite cured soil directly substitutes a cement surface layer and an asphalt surface layer, only a small amount of curing agent and 2 to 5 percent of cement are mixed and then the mixture is used for stabilizing the surface layer, wherein the compression strength in 7 days can be up to 5 to 10Mpa. The soil curing agent meets the requirement of directly substituting for a base layer, a water stability layer and the surface layer; the construction cost is saved by 30 to 50 percent; the soil curing agent has a low price and high fireproof performance, shock resistance and durability, is simple in construction, overcomes the performance defects of the traditional soil curing agent; and serving as the surface layer, the soil curing agent better accords with the social requirements of environment friendliness, ecology and energy conservation.
Description
Technical field
The present invention is a part for highway, civic building engineering, belongs to fine chemical technology field.
Background technology
Soil curing agent technology is existing nearly 30 years above use history abroad, is widely used in the engineering projects such as national motorway, airport, sea wall, harbour, harbour, water conservancy antiseepage.Technique is mainly to adopt soil on the spot to carry out strong roadbed, make to form more firm, stable, a lasting integral slab block structure, the problems such as ubiquitous damaged or destroyed by flood in old technology road, differential settlement, reflective crack are solved, thereby greatly improve the carrying capacity of roadbed, road deck attenuate and crushed rock base course are cancelled.Thereby the direct investment on road basis is reduced, reduced roadupkeep cost.
Soil-solidified-agent utilisation technology, along with the Chinese government and the common people are approved gradually and promote the reinforcement of environmental protection, the ecological awareness, this has benefited from gathering materials on the spot in recent years, reduce exploitation, conserve water and soil, save the good characteristics of construction cost, start to be applied to highway subgrade, during seepage control project etc. are processed.Now have the product of nearly ten soil-solidified-agents to use in China abroad, but due to its requirement to soil property and the costliness of price, practical application is few.The domestic product that also has nearly ten soil-solidified-agents, because factors such as being subject to geographical environment weather affects, these are all confined to the subbase of rank compare Di highway and the processing of basic unit, the present invention can replace the steady layer of water and surface layer directly to use, solve the water resistance after soil curing, the core bottleneck problems such as solar heat protection anti-freezing property, its sexual valence advantage will attract huge market resource, and soil-solidified-agent will have more wide application prospect.
Summary of the invention
Technical problem solved by the invention is to provide a kind of soil-solidified-agent that soil is directly treated as to road deck, to solve the shortcoming in above-mentioned background technology.
Technical problem solved by the invention realizes by the following technical solutions:
A kind of soil-solidified-agent that soil is directly treated as to road deck, the per-cent of raw material and quality thereof is: water glass 50-60%, dehydrated alcohol 2-5%, polyacrylamide 5-10%, Walocel MT 20.000PV 5-10%, sodium hydroxide 8-15%, potassium hydroxide 8-15%, magnesium hydroxide 2-5%, Sodium Silicofluoride 2-5%, alum 2-5%, water reducer 2-5% etc., above-mentioned raw materials percentage ratio sum is 100%.
In the reactor that heating unit, reflux exchanger, whipping appts are housed by water glass (water glass), dehydrated alcohol, alum [KAl (SO
4)
212H
2o], Walocel MT 20.000PV (HPMC), polyacrylamide (PAM), Sodium Silicofluoride (Na
2siF
6) be heated to reaction at 80-100 DEG C, composite copolymerization liquid cooling, to 15-20 DEG C, is added to 99% solid state hydrogen sodium oxide (NaOH), magnesium hydroxide [Mg (OH)
2] and potassium hydroxide (KOH) raw material stirring even, reaction 1-2 hour, then add water reducer etc. to use high speed compound machine at room temperature evenly to mix, draws this soil solidification agent solution.
The present invention in use, need be with reference to national standard, i.e. " curing sub-surface and subbase technical regulation CJJ/T80-98 " and " highway pavement roadbed design specification JTGD30-2004 ".
The present invention in use, this solidifying agent is diluted according to 2/10000ths ratio and water, evenly be sprayed in the soil of the scope of operation, mix again with the cement mix of 2-4% evenly, use after the street roller compacting of 18 tons, by the even spreading of stone flour of the every square of 2kg in surface, with street roller hydrostatic profile, finally the curing agent solution of remaining dilution is sprayed on to surface, through a series of physical-chemical reaction process, stablizes lasting effect and reach soil solidification.
Outward appearance of the present invention is colourless, can select coloured interpolation staining agent to use as auxiliary material, and optional coloured interpolation staining agent has grey, red-purple, black, orange-yellow, blue look, brown etc.
In the present invention, when after soil-solidified-agent and soil particle and a small amount of cement uniform mixing, the xln that is rich in mass crystallization needle-like interts rapidly and between particle hole, forms intensity skeleton.In composition part, between Vltra tears (HPMC) and grogs, form wadding fibrous colloid, be conducive to form fast soil body mechanical structure; Main characteristic flocculence, water-retentivity, the emulsifying property binding property of the polyacrylamide (PAM) under the effect of molecule in composition part are brought into play, and adsorptive power between soil particle is strengthened greatly, and the free ability on monomer surface reduces; When sodium ion, silicon ion generation permutoid reaction after the calcium salt in solidifying agent, magnesium salts, sylvite dissolving and in soil, further increase the agglomeration of soil particle.Under the real state of defeating outside, can make soil compaction effect stronger, compactness is larger, has afterwards superpower bearing capacity and high water repellency.
React when a series of " point depolymerize " occurs for composition part of solidifying agent and silicon oxide in the soil body, aluminum oxide, form a large amount of hydrated calcium silicate gels, aquation sulphur, calcium aluminate etc.Composition part also simultaneously with the cement mixing in Calucium Silicate powder, tricalcium silicate, tricalcium aluminate, composition reaction is same forms for tetracalcium aluminoferrites etc.Composition during hydrated calcium silicate gel composition divides can also rapid extraction participate in the various calcium, silicon, iron, the aluminium isoreactivity composition that react.Not only strengthen the cohesive force between soil particle by this physical-chemical reaction, and the water glass of itself and the hydrated calcium silicate isogel of generation, can play to the full extent the intergranular gap of filling soil.
These reaction process do not isolate, mutually intert but connect each other, by physical mechanics react, physical-chemical reaction, make soil body engineering property, barrier performance, weather resistance, solar heat protection freezing tolerance obtain huge improvement.
Beneficial effect: the present invention and traditional technique relatively have the following advantages and practical significance:
1. scientific formulation is reasonable, and starting material wide material sources are made simply, and with low cost, stable and reliable for performance, intensity is high, repellency is strong, solar heat protection anti-freezing property is good;
2. many field multiple uses, not only can be used as the processing of the steady layer of base water of motorway, Class I highway, and maximum advantage is to be directly used in the surface layer of community road, country road, parkway, municipal administration, sightseeing sidewalk;
3. gather materials on the spot, without transporting on-the-spot soil, no longer need a large amount of sand materials, do not re-use cement, pitch as surface layer, saved greatly laid down cost, reduced the pollution of atmosphere, reduce and cut into a mountain for quarrying, having kept soil erosion, reduced environmental and ecological road original appearance, is to meet building a New Socialist Countryside, advocate demand that low-carbon economy builds a harmonious society.
In sum, the present invention has broken through the freeze proof core technology of waterproof, solved other at present on the market all soil-solidified-agents can only be applicable to road subbase course and basic unit, and can not be directly as the Application Areas of surface layer, market outlook are very wide, and it is widely used in also and will produces huge social effect and economic benefit.
Embodiment
For technique means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
In embodiment mono-, under laboratory conditions:
According to " earthwork test rule ", get < 5mm soil sample 10kg after sieve, by the cement of mixing 4% 325 labels outward, by 1.2/10000ths of compound weight, mix suitable quantity of water and dilute and mix and stir, make the module of 50mm × 50mm.5 groups totally 50, operate and test detection according to " highway stabilized with inorganic binder testing of materials code ", getting 3 for every group carries out, 7 days without side limit intensity, more than on average reaching 3.51Mpa, Expressway Design requirement, get 3 for every grade and on average reached 8.97Mpa at 28 days without side limit intensity, remaining 4 every group are carried out freezing and thawing test, repeatedly test unconfined compression strength after soaked without considerable change through 50 DEG C to-18 DEG C 18 times circulations, can find out that by following table this soil-solidified-agent resistance to compression index, water resistance and heat expansion-proof and cold shrinkage are all fabulous.
One group of intensity detection testing data
Case study on implementation 2, selects approximately 2000 squares altogether, at village level road surface, ALFISOL IN CENTRAL, selects hot weather construction.Use this kind of soil-solidified-agent to be total to 100kg by 1.2/10000ths, 4% cement carries out compacting after evenly mixing, every square of 2kg stone flour is spread on surface, directly, as surface layer, be completed in August, 2008, and in October, 2010, Compressive strength of coring samples was 8.5Mpa to the maximum, use surperficial intact without any crackle so far, vehicle pass-through is normal, rains non-slip, can not become a fine day ash.
More than show and described ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification sheets, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (1)
1. one kind is directly treated as soil the soil-solidified-agent of road deck, it is characterized in that, the per-cent of raw material and quality thereof is: water glass 50-60%, dehydrated alcohol 2-5%, polyacrylamide 5-10%, Walocel MT 20.000PV 5-10%, sodium hydroxide 8-15%, potassium hydroxide 8-15%, magnesium hydroxide 2-5%, Sodium Silicofluoride 2-5%, alum 2-5%, water reducer 2-5%, above-mentioned raw materials percentage ratio sum is 100%, its concrete procedure of processing is: heating unit is being housed, reflux exchanger, in the reactor of whipping appts by water glass, dehydrated alcohol, alum, Walocel MT 20.000PV, polyacrylamide, Sodium Silicofluoride is heated to reaction at 80-100 DEG C, by composite copolymerization liquid cooling to 15-20 DEG C, add 99% solid state hydrogen sodium oxide, magnesium hydroxide and potassium hydroxide stir, reaction 1-2 hour, add again water reducer to use high speed compound machine at room temperature evenly to mix, draw this soil solidification agent solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010557635.3A CN102031119B (en) | 2010-11-25 | 2010-11-25 | Soil curing agent directly processing soil into surface layer of road |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010557635.3A CN102031119B (en) | 2010-11-25 | 2010-11-25 | Soil curing agent directly processing soil into surface layer of road |
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| Publication Number | Publication Date |
|---|---|
| CN102031119A CN102031119A (en) | 2011-04-27 |
| CN102031119B true CN102031119B (en) | 2014-06-04 |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102643652B (en) * | 2012-04-17 | 2014-05-07 | 重庆融极环保工程有限公司 | High osmosis type soil hardener and application method thereof |
| CN102690099B (en) * | 2012-06-15 | 2013-08-07 | 新疆惠森生物技术有限公司 | Application of soil hardener in wall body building of greenhouse |
| CN106190159A (en) * | 2016-07-28 | 2016-12-07 | 甘肃鑫业环保科技有限公司 | A kind of soil additive that clay solidifying is become Ecological Road and preparation technology thereof |
| CN106244164A (en) * | 2016-08-11 | 2016-12-21 | 洛阳名力科技开发有限公司 | A kind of liquid soil-solidified-agent |
| CN107151957A (en) * | 2017-03-24 | 2017-09-12 | 广东省建筑科学研究院集团股份有限公司 | A kind of Tourism Ecological road of utilization soil body solidification, rural road pavement structure |
| CN107502369A (en) * | 2017-09-20 | 2017-12-22 | 任运（北京）科技有限公司 | Soil-solidified-agent that reclamation and treatment of soft foundation use and preparation method thereof |
| CN108165273A (en) * | 2017-12-26 | 2018-06-15 | 洛阳神佳窑业有限公司 | A kind of liquid soil-solidified-agent |
| CN108178551A (en) * | 2018-01-03 | 2018-06-19 | 东莞市粤惠建筑工程技术咨询有限公司 | A kind of special ground curing agent of civil engineering and preparation method thereof |
| CN109053096B (en) * | 2018-10-26 | 2021-06-01 | 长春工程学院 | Anti-frost-cracking curing agent for soda saline-alkali soil |
| CN112876190B (en) * | 2021-02-03 | 2023-01-17 | 中科聚垚环保新材料科技有限公司 | Fiber-cured road surface layer mixture and preparation method thereof |
| CN115109597B (en) * | 2022-07-21 | 2024-03-22 | 西安墙体材料研究设计院有限公司 | Soil curing agent and preparation and use methods thereof |
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| CN1884182A (en) * | 2006-07-07 | 2006-12-27 | 邓桂云 | Civil engineering materials curing agent and preparation method thereof |
| CN101481238A (en) * | 2009-02-18 | 2009-07-15 | 西北农林科技大学 | Green soil curing agent |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4307809B2 (en) * | 2002-05-14 | 2009-08-05 | 三菱商事建材株式会社 | Hardening retarder, cure delay method for hydraulic solidification material and cure delay method for improved soil |
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|---|---|---|---|---|
| CN1884182A (en) * | 2006-07-07 | 2006-12-27 | 邓桂云 | Civil engineering materials curing agent and preparation method thereof |
| CN101481238A (en) * | 2009-02-18 | 2009-07-15 | 西北农林科技大学 | Green soil curing agent |
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| 陈胜等.高性能土壤固化剂的制备与性能.《硅酸盐通报》.2006,(第1期),第109-113页. |
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| CN102031119A (en) | 2011-04-27 |
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