CN101265703A - Roadbed soil reinforcing agent - Google Patents
Roadbed soil reinforcing agent Download PDFInfo
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- CN101265703A CN101265703A CNA2008100313087A CN200810031308A CN101265703A CN 101265703 A CN101265703 A CN 101265703A CN A2008100313087 A CNA2008100313087 A CN A2008100313087A CN 200810031308 A CN200810031308 A CN 200810031308A CN 101265703 A CN101265703 A CN 101265703A
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Abstract
The invention provides a road foundation soil reinforcing agent, which contains the following components in the weight percentage: sodium polyacrylate 2%-10%, polyacrylamide 2%-10%, polyacrylamide copolymer 2%-10%, polyvinyl alcohol 2%-10%, sodium aluminate 2%-10% and distilled water 50%-90%. When using the inventive road foundation soil reinforcing agent, a compact road foundation is built by directly spraying on the field soil loosely planed and leveled up, then mixing and compacting. The soil reinforcing agent is capable of improving the speed and the quality of road construction, reducing road construction and maintenance costs, lessening the thick dust in construction, and prolonging road service life.
Description
Technical field
The present invention relates to a kind of engineering material that is used for urban road laying, relate in particular to the road foundation roadbed soil reinforcing agent.
Background technology
The damage of road is mainly relevant with the water enchroachment (invasion) evil.Moisture makes the expanded transition of soil when rainy weather is too much, so that deliquescing even liquefy, road Yin Luji loses stability and suffers thorough destruction.Present engineering needs with high pH value and uses the alkalization process to handle soil to reach the effect of solidifying or strengthening, and the method for matrix construction has gradating material worker method and grey worker's method of two ashes/three and cement stabilizing worker method.
Gradating material worker method need be excavated and be transported and abandon the thick soil of on-the-spot 50～60cm, making is worth expensive aggregate grading material, compole is long during the compacting of this roadbed, construction period is long, because of basic unit's quality bad, causing the AC surface layer often to exclude renews, the maintenance cost height, and, transport discarded soil and aggregate grading material in addition back and forth easily because the number of moisture causes the expansion or the contraction of volume in the material, cause environment pollution, high carrying capacity vehicle round transport, existing road is produced heavy damage, the more day by day frequent traffic volume is caused great impact, the social cost of being paid more is unable to estimate.
No matter the grey worker's method of two ashes/three is two grey subbases or three grey basic units, selection for soil is all very strict, need the discarded on-site soil that is not suitable as road basement material, mix and stir time-consuming, the construction sequence complexity, the roll extrusion time is long, and these have all caused the making cost higher, and because the variation of moisture and the problems such as expansion contraction of volume in the surge of climate change and the traffic volume and the material will cause the later period maintenance funds also higher.Very easily produce dust in the process of the material processed of huge two grey basic units or three grey subbases simultaneously, seriously influenced environment.
The domestic road of building is taked cement stabilizing worker method mostly at present, when using cement stabilizing worker method to handle roadbed, must excavate and transport and abandon the thick soil of on-the-spot 50～60cm, paving machine grating stone and cement, flyash and sand mix and stir material, and exploitation rubble itself produces destruction greatly to rivers and creeks and environment, and three and the material that use cement and flyash to handle can't be recycled, alkalization process for cement is handled the soil that has also directly polluted lower floor, add fortune abandon the soil of engineering site and ship three and high load-carrying vehicle reversion on the road of open to traffic of material sail, existing road is more produced great impact, quickened the destruction of existing road.
The object of the present invention is to provide a kind of roadbed soil reinforcing agent, it can utilize engineering site soil, and becomes solid roadbed it reacts compacting to soil after.
This roadbed soil reinforcing agent provided by the invention comprises following composition by weight percentage: 2%～10% Sodium Polyacrylate, 2%～10% poly-propionamide, 2%～10% poly-propionamide copolymer, 2%～10% polyvinyl alcohol, 2%～10% sodium aluminate, 50%～90% distilled water.
Roadbed soil reinforcing agent of the present invention directly is sprinkled upon when using on the on-site soil of digging the pine leveling, then after mixing and stirring again compacting can become solid roadbed.
The present invention is with low pH value but not the alkalization process reaches stable soil.Having only clay in soil is through the particle of the ore crystal of mineralogy variation, is called colloid.The structure of clay is octahedra or tetrahedral from lattice structure, and this structure molecule makes their particle surface produce electrostatic charge, the balance mode of electrostatic charge be negative electrical charge mainly inside and positive charge mainly in outer rim.These electrostatic charges make the electrode of hydrone produce electrostatic force attraction, and hydrone is adsorbed on particle surface.
When producing, soil reinforcing agent of the present invention and soil does the time spent, because of it has electronegative carboxylic acid ion, cation neutralization with clay particle surface, reach the effect of ion-exchange, eliminate the electrostatic attraction on soil particle surface, make clay become hydrophobicity by hydrophily, and then with hydrone displacement the becoming free water of the absorption of soil particle periphery, make the soil particle surface lose Electrostatic Absorption power to water, produce complex reaction simultaneously, generate water-fast complex compound, have viscosity and lubricity in initial reaction stage, therefore can less mechanical pressure be got rid of by moisture, and soil packing degree (degree of consolidation) will promptly improve, action through pervaporation makes the Heshui amount of soil descend again, the intensity of soil will rise gradually, and no longer form adsorbed water, to produce great frictional resistance between soil particle and particle, make the intensity of soil be enough to bear the various traffic volume and load-carrying, when the degree of consolidation of soil surpasses 95%, to not have the worry of depression through the base course behind the soil reinforcing agent processing of the present invention back, and because irreversible chemical reaction effect, to make the base course after handling sustain its quality through age, reduce in the future the maintenance cost and the day by day heavy traffic volume widely.
The present invention can reduce the index of plasticity of most soil, rainy season or spring frost free period, it limits in the base course soil texture of most moisture intake duct; In the phase of dehydrating, it has also reduced the speed that moisture breaks away from.The pellet of roadbase soil is integral, has relaxed the erosion of water.
The present invention has following advantage: can eliminate the electrostatic attraction between soil, get rid of intergranular adsorbed water; Increase the frictional resistance between soil particle, be integral, improve the compressive strength of soil, make through soil reinforcing agent processing soil later and form an artificial sedimentary rock plate in conjunction with the soil pellet; Reduce the index of plasticity of soil and eliminate the slip of bottom, reach the effect of ion-exchange, eliminate the electrostatic attraction on soil particle surface, reach the adsorbed water problem in the quick removal soil; The moisture content of balance and stability soil can be resisted humidity, prevents freezing injury, stops expansion damage and eliminate the saturated roadbed deadline factor that causes of water content, reduces hole, makes the soil texture after handling form impervious layer or permeable hardly; Obtain the degree of consolidation that requires fast, reduce the roll extrusion action, shorten the engineering time, realize the economic worth of road ahead of time; With the chemical reaction of soil be irreversible, the road of building with soil reinforcing agent is firm, durable, elastic force is arranged, can bear high load-carrying and frequent traffic and vibrations, makes to handle subgrade soil later and sustain its quality through age; Engineering cost is low, need not use the rubble gradating material, and road construction needn't be discarded on-site soil, not discarded soil; Improve road construction and execute speed and quality, reduce road construction expense and maintenance cost; Compliance with environmental protection requirements is not destroyed environment, reduces stirring up a cloud of dust in the construction, prolongs road service life.
The specific embodiment
With percentage by weight is that 2%～10% Sodium Polyacrylate, 2%～10% poly-propionamide, 2%～10% poly-propionamide copolymer, 2%～10% polyvinyl alcohol, 2%～10% sodium aluminate, 50%～90% distilled water mixing stirring just obtain roadbed soil reinforcing agent of the present invention.
Embodiment one
A kind of preferably proportioning of the present invention is: get 3% Sodium Polyacrylate, 3% poly-propionamide, 2% poly-propionamide copolymer, 3% polyvinyl alcohol, 3% sodium aluminate, 86% distilled water mixing stirring by weight percentage.
The inventor has prepared batch path subgrade soil reinforcing agent within the scope of the invention, sees Table one.
Table one:
| Composition | Embodiment two (weight %) | Embodiment three (weight %) | Embodiment four (weight %) | Embodiment five (weight %) | Embodiment six (weight %) |
| Sodium Polyacrylate | 5 | 7 | 10 | 2 | 10 |
| Poly-propionamide | 5 | 10 | 5 | 2 | 10 |
| Poly-propionamide copolymer | 3 | 7 | 5 | 2 | 10 |
| Polyvinyl alcohol | 3 | 10 | 10 | 2 | 10 |
| Sodium aluminate | 5 | 2 | 2 | 2 | 10 |
| Distilled water | 79 | 64 | 68 | 90 | 50 |
Use the construction sequence and the step of roadbed soil reinforcing agent of the present invention:
1. field sampling soil testing:
1.1 classification of soils test:
Determine the classification of on-site soil according to ASTM D2487-83 " the soil classification test method of engineering purposes (unified classification) ", the use amount with decision soil reinforcing agent of the present invention sees Table two.
Table two:
| The AASHT classification | The unified classification of soils | Handle a cubic metre of earth m 3 | Remarks |
| A-1-a | GW | 5～8 | It is better suitably to add the loamy ground effect |
| A-1-b | GP | 5～8 | The same |
| A-2-4~6 | GM | 3～5 | |
| A-2-5 | GC | 3～8 | |
| A-2-5 | SW | 4 | It is better suitably to add the loamy ground effect |
| A-4 | SP | 3～4 | The same |
| A-4 | SM | 3～4 | |
| A-4 | SC | 3～4 | |
| A-4 | ML | 3～4 | It is better suitably to add gravel soil effect |
| A-6 | CL | 3～4 | The same |
| A-4 | OL | 4 | The same |
| A-5 | MH | 4 | The same |
| A-7 | CH | 4 | The same |
| A-5 | OH | 4 | The same |
| -- | Pt | -- | Peat soil and highest organic soil must be done experiment |
1.2 on-site soil water content test:
ASTM D2216 or AASHTO T265[laboratory soil basis determining method].
1.3 soil optimum moisture content and maximum dry density test:
ASTM D698 or AASHTO T99 (, falling apart from 12 cun decision soil moisture content and density relationship test method(s)) with 5.5 pounds of hammer rams.
The difference of above-mentioned soil optimum moisture content and on-site soil water content is the thinned water amount of soil hardening agent.
2. the proportioning of roadbed soil reinforcing agent of the present invention
2.1 soil reinforcing agent is added the required dilution water that reaches optimum moisture content of soil behind laboratory test with 2/10000ths (2/10000) heavy ratios of soil dry ground, tries to achieve optimum dry density and optimum moisture content according to ASTM D2216 or AASHTOT265 (laboratory soil basis determining method).
2.2 adjust the using dosage of soil reinforcing agent according to the soil optimum moisture content of 2.1 gained, metering with 1.4/10000,1.7/10000,2.0/10000,2.3/10000,2.6/10000 is made CBR examination body more than two groups, test the maximum CBR value examination body proportioning of finding out above-mentioned soil sample or the examination body that meets the design CBR value of builder's road through CBR, this is the best using dosage of soil reinforcing agent.
Before making soil reinforcing agent stabilized zone, should be clean all surface dust in the roadbed basic unit, foreign material full scale clearance.
2.3 material requirements
The raw material of soil reinforcing agent require no precipitation, free from admixture, do not lump, and contain the gravel particle diameter in the required soil and are not more than 10cm, sift out the bigger Humus of stone bigger in the soil and volume (for example branch foreign material etc.).
3. construction lofting:
On going to a grassroots level, establish an elevation stake and sideline stake, and indicate thickness mark after loose laying depth and the compacting every 15m.
4. cubic metre of earth transportation
Adopt dumper truck to be mixed and stirred by the field of fetching earth behind a mix that fetches earth and a little transport to building-site, unload and pile on integer and the sub-layer that adheres to specification, windrow distance and active section length are passed through the concrete condition of execute-in-place and are decided.
5. pave
Before the soil grass-root material that paves, soil reinforcing agent of the present invention (soil reinforcing agent: water is 1: 250) after the use sprinkling truck sprinkling dilution earlier is on sub-layer (roadbed), require sub-layer (roadbed) surface slightly to wet during sprinkling and get final product, this work can make this soil reinforcing agent stabilized zone and sub-layer (roadbed) combine closely.Soil grass-root material after marching into the arena adopt land leveller nappe, smooth, and pave with artificial cooperation, when the part location can not adopt land leveller to pave, adopt push away with artificial cooperate smooth.The area that paves (coefficient of loose laying is 1.25～1.4) according to the THICKNESS CALCULATION per car earthwork of making layer, the earthwork is discharged at road width of cloth central authorities equably, according to measuring the absolute altitude hanging wire, adopt bulldozer, excavator and land leveller will be marched into the arena cubic metre of earth by loose laying depth in addition smooth after slightly flat, and coarse aggregate nest and rough set strip are in time eliminated by the group that establishes, pave with artificial cooperation around the pipe lid, smooth (can be directly when building-site soil is enough with the on-site soil arrangement to requiring high-rise back directly to spray soil reinforcing agent above the soil that desire is handled, use the road roller roll extrusion after adopting the road-mixed machine uniform mixing again).
6. mix
Roadbed soil reinforcing agent of the present invention and mixing with soil material mix and stir and adopt road-mixed machine to mix system in the scene, if sewer and pipe network are shaped, the directly enforcement stirring on-site of available vacant lot is sought at the manhole place that can arrange on-the-spot pipe network.When mixing and stirring, the use amount of soil reinforcing agent must be carried out the weighing allotment in strict accordance with the optimum mix of test room, guarantees the accurate of materials, and the blended stock of the system of mixing all reaches quality requirement and palpus uniform mixing.
7. shaping, roll
During integer, after the use road roller rolls twice fast earlier, make its surface expose potential out-of-flatness.For low-lying place, part, adopt tooth harrow will be more than the surperficial 5cm rake pine, backfill newly mix and stir material make up a deficiency smooth, until reaching the vertical and horizontal section that meets design requirement.Compacting: this engineering intends adopting land leveller to cooperate vibratory roller to roll, soil grass-root (time is no more than 3 hours) after the land leveller paving and leveling is a bit of after soil reinforcing agent is handled, adopt road roller static pressure two times on just flat highway section, after the pressure of shaking a time, temporarily stop to roll, survey crew carries out height measurement immediately and checks, absolute altitude is made up a deficiency immediately than the high position that surpasses 1cm or low 0.5cm of design, and then it is molded to shake with road roller, the part location can not adopt land leveller to pave and road roller when rolling, adopt push away with artificial cooperate smooth, roll.
When rolling, its travel speed should be that slow earlier back is fast, and its maximum travelling speed should be less than 4km/h.During direct route, rolled to the centre by both sides, the sharp radius curve section is rolled laterally by the inboard, rolls and should be undertaken by the pass that test provides, and the narrow place that road roller can't roll is then tamped with gasoline rammer machine.During the stone roller type by Bian Zhizhong, from low to high, take turns wide principle and roll to strong, overlapping 1/3 by weak, when in official hour, (being no more than 4 hours) and rolling the design degree of compaction and there is no obvious wheelmark till.Roll in the process, forbid road roller to be reversed end for end in basic unit or the speed per hour that starts to walk is spent greatly, when rolling, tyre roller is towards the direction that is paving.
Forbid road roller tune or bring to a halt on molded or the highway section of rolling, in case destruction finished product, in each construction section termination 4-5m scope, road roller should suitably laterally roll from low to high along the road surface horizontal wall inscription, makes compound to termination direction slippage when preventing the longitudinal rolling termination.
Transverse joint is handled: during soil grass-root after the soil reinforcing agent that paves is handled, the middle ware break time is no more than 3 hours, meets otherwise should be provided with laterally to connect.Adopt and manually terminal compound is snugged, the soil grass-root after the leveling soil reinforcing agent is handled, and with the soil grass-root compacting after the soil reinforcing agent processing; Before the soil grass-root after the soil reinforcing agent that restarts to pave is handled, the stabilized zone end is scraped out stepped, and use 250 times soil reinforcing agent dilution to spray the surface, make to connect surface, face place and keep little wet, spread new stabilized zone then.
Longitudinal seam: under the situation that can not avoid longitudinal seam, longitudinal joint adopts and manually terminal compound is snugged, the soil grass-root after the leveling soil reinforcing agent is handled, and with the soil grass-root compacting after the soil reinforcing agent processing; Before the soil grass-root after the soil reinforcing agent that restarts to pave is handled, the stabilized zone end is scraped out stepped, and use 250 times soil reinforcing agent dilution to spray the surface, make to connect surface, face place and keep little wet, spread new stabilized zone then.
8. degree of compaction after the roll extrusion:
8.1 should reaching at least according to AASHTO T180 method (Improvement type ram to be pressed test method(s): weigh 10 pounds, hammer drop height ten eight o'clock divides five layers to ram and press, every layer hammering 25 times), building site density tests, again with theoretical formula correction gained maximal density more than 95%.
8.2 per 1,000m
2Do density test once.
9. check roadbed soil reinforcing agent Treated Base thickness of the present invention:
9.1 after handling basic unit's making compacting and finish with soil reinforcing agent of the present invention, handle the thickness check when handling the building site compactness test in the lump, per 1,000 square centimeter of examination a bit, when not being inconsistent the contract regulation as the building site degree of compaction, then this time check will not be accepted, and should go examination when the building site degree of compaction is rechecked again.
9.2 adopt mean value calculation, with 10,000m
2Be a unit work area, ask its average, as for not reaching 10,000m
2The person should get whole average, and must dwindle the work area because of its obvious characteristic and ask its average.When checking thickness greater than design load as single-point, its exceedance will not calculate.As under the sample point undreground works is arranged, when being not enough to representative sampling thickness, then must avoid giving sampling again in contiguous place in addition.
9.3 the test value of average thickness is more than or equal to design load person, it is qualified to be considered as.
9.4 when the test value of average thickness was less than design load, its error part should be adjusted making to design altitude with asphalt concrete pavement.
9.5 the test value of average thickness is less than design load, its difference surpasses design load 10, and this district should dig pine and reform.
9.6 should properly converging, the check record puts in order keeping, as the reference frame of completion of works clearing and examination.
9.7 after soil reinforcing agent and soil mix are finished,, extract a part of compound and deliver to through owner and the test room that manages approval and detect, carry out the CBR test by supervising engineer's witness sampling.Adopt sand replacement method that compactness of subbase is detected behind basic unit's roller-compaction in 24 hours, the test eye adopts the C10 concrete to mend flat.Degree of compaction reaches 95% can spray layer and asphalt concrete pavement when above.
10. construction survey
In work progress, can adopt road center line, three lines in sideline to carry out the control of all fronts road, according to the job site actual conditions, rationally arrange to pave band, and before vertical control point employing paver is laid in the band both sides that pave during hanging wire Height control mode, each Height control dot spacing 10m.
Each layer absolute altitude that paves finished at decking and rolling and adopted level gauge to detect immediately, just can carry out the construction of lower floor after qualified.Each layer system-wide width of cloth is established vertical control point after paving and finishing, successively the control surface planeness.
11. saturating layer
For guaranteeing the quality of asphalt concrete pavement, carrying out spraying one deck priming oil before asphalt concrete paves.
11.1 split spray-type mulseal making during saturating layer adopts, distributive value is 0.8～1.2kg/m
2
12. bituminous concrete is laid
Should check basic unit by the regulation of relevant specification before the asphalt surface course construction, can the making asphalt surface course after base layer quality meets the following requirements:
(1) having breakage repairs;
(2) has good stable;
(3) handle the bigger hard and soft connecting part of influence;
(4) surfacing, closely knit, camber is consistent with surface layer, elevation meets the requirements;
(5) spill the cloth sticking layer oil
12.1 the pitch material paves
Before the compound that paves, should check the quality of confirming lower floor, when lower floor's non-conformity of quality closes when requiring, forbidden to pave.Before paving, should submit a report asking for supervising engineer's approval.
All discrete materials to the surface all should clean, till the surface does not have dirt.To cleaning and spilt the surface of adhesion coating pitch, do not allow vehicle '.
The flat stone of side and other works should be finished before making, should brush one deck thin layer mulseal or heated bitumen binder equably before paving on all contact surfaces.
The mode that following surface layer, middle surface layer adopt hanging wire to connect preface Height control mode or the continuous Height control of metal guide rail paves, and upper layer (antiskid top layer) adopts the shifting balance beam control elevation of band sledge pin when paving.Must set longitudinal and transverse sloping controller walking benchmark before paving.
The pressing plate will fully heat before paving.When paving, haul should be arranged incessantly as soon as possible and be unloaded into paver, and paves at once, and is without delay.When paving, the rotating speed of feeding screw should cooperate appropriately, so that the height of compound stockpile flushes in or a little more than the axial line of feeding screw, promptly is as the criterion to see helical blade a little or just to have covered blade before the pressing plate.
Bituminous mixture must be slowly, evenly, pave uninterruptedly.Random conversion rate or stop in the paving process.
Haulage vehicle reply paver has enough lasting feed amounts, if temporary fracture takes place, then paver should continue to keep running.
Should avoid construction joint during construction as far as possible.
To the irregular road surface of profile (as square, crossing), thickness low LCL or space such as are restricted at the place that paver can't be worked, and can adopt artificial making compound through supervising engineer's approval.
When existing ponding and temperature to be lower than 10 ℃ on rainy day, surface, compound all must not pave.
At any time check its width, thickness, planeness, road camber and temperature in the bituminous mixture laying process, should in time adjust improper part.
In paving process,, forbid construction machinery on uncompleted road surface, to reverse end for end, brake, turn for reducing the destruction of construction machinery road pavement.As special circumstances, should on the road surface, take safeguard measures such as place mat gunnysack or spacer.
Paving of bituminous mixture should be avoided carrying out in the rainy day.When road surface backwater or humidity, answer suspension of works.
Answer full scale clearance without the bituminous mixture that compacting is promptly drenched with rain, change virgin material.
12.2 the compacting in other special locations and requirement
Roll by vertically carrying out, and evenly carry out at a slow speed by the low limit that material paves.
Road roller must not turn to, turn around or stop-for-waiting on the road surface of not roller-compaction and cooling.When road roller alternately rolled back and forth, front and back stopped the place for twice at a distance of more than the 10m, and should roll away from beyond the compacting initial line 3m.Vibratory roller travels in type road surface and cuts out vibration.
To road roller can't compacting turn some areas such as dead angle, widened section and some Road Edge, adopt the compacting of vibration tamping plate.Also using artificial hammer ram, the additional compacting of hot network iron of edge to catch-basin and various manholes.The rolling road surface of having finished is not repaired epidermis.
The comparison of constructor's method of use soil reinforcing agent of the present invention and two traditional grey three grey worker's methods sees Table three
Table three:
| Project | The grey worker's method of two ashes/three | Soil reinforcing agent |
| Material | No matter be two grey subbases or three grey basic units, all very strict for the selection of soil, therefore improved and made the road unit price.AASHTO standard: bottom aggregate CBR＞80, PI＜4 | Use the available soil type of soil reinforcing agent comparatively loose, can use on-the-spot any kind of soil; When shipping soil, the soil that the also more traditional worker's method of price institute sternly selects is low if need borrow earth. |
| Job practices | The material processed of two grey basic units or three grey subbases very easily produces dust, seriously influences environment, and mix is time-consuming, the construction sequence complexity, and the roll extrusion time is long, and cost improves relatively. | Liquid pharmaceutical is easy to infiltration, and it is simple and easy to construct, and can meet the requirements of degree of consolidation in the extremely short time, uses common mechanical such as blade machine to get final product. |
| Discarded soil | The discarded on-site soil that is not suitable as road basement material; Discard the licence that must obtain the spoil ground of throwing aside of soil; The transportation of discarded soil and rubble, lime, sand causes to stir up a cloud of dust and destroys environment and the existing traffic of serious impact; Need a large sum of funds of cost improve environment throwing aside with compliance with environmental protection requirements. | Needn't discard on-site soil, save very hard iron of freight; Do not destroy the worry of environment; The puzzlement that is faced without any traditional worker's method. |
| Compressive strength | The following road base layer 0.6～0.8MPa subbase of secondary and secondary 〉=0.5MPa speedway and 0.8～1.1MPa of Class I highway basic unit | 28 days long-term 11MPa data source of 5MPa of 7 days 2MPa of compressive strength: materials testing report |
| Subbase 〉=0.6MPa data source: the compressive strength standard of Chinese transportation portion issue " highway road surface construction technique normalizing " two grey compounds | ||
| The construction time limit | The embodiment of road economic benefit was later when useless in spacious day | Save the duration more than 70%, one group of machinery manpower can be finished the thick 8000m of basic unit of 20cm every day 2 |
| The AC wearing layer | 10～15cm | 5～7cm can save 50% |
| Maintenance cost | The problems such as expansion contraction of the variation of moisture and volume in the surge of the climate change and the traffic volume and the material, it is huge to cause maintenance cost | Stablize because of basic unit is solid, but the variation of irreversible chemical action weather temperature and humidity more because of intensity grows with each passing day, can be born the fierce traffic volume of growing up, maintenance cost is reduced to minimum or is zero |
| Transport discarded soil and aggregate grading material back and forth, cause to stir up a cloud of dust, influence environment, high carrying capacity vehicle round transport produces heavy damage and also big to the impact of traffic to existing road, and the social cost of being paid more is unable to estimate | Use soil reinforcing agent road construction basic unit then not have the left column problem and take place, not only environmental protection but also reach the economic benefit of high level |
Claims (2)
1, a kind of roadbed soil reinforcing agent comprises following composition by weight percentage: 2%～10% Sodium Polyacrylate, 2%～10% poly-propionamide, 2%～10% poly-propionamide copolymer, 2%～10% polyvinyl alcohol, 2%～10% sodium aluminate, 50%～90% distilled water.
2, roadbed soil reinforcing agent according to claim 1 comprises following composition by weight percentage: 3% Sodium Polyacrylate, 3% poly-propionamide, 2% poly-propionamide copolymer, 3% polyvinyl alcohol, 3% sodium aluminate, 86% distilled water.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008100313087A CN101265703A (en) | 2008-05-15 | 2008-05-15 | Roadbed soil reinforcing agent |
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|---|---|---|---|---|
| TWI384941B (en) * | 2010-06-30 | 2013-02-11 | Univ Vanung | Construction of potted plants by means of concrete |
| CN106635038A (en) * | 2016-12-21 | 2017-05-10 | 新疆旱海绿洲生态科技有限公司 | Chemical curing agent as well as preparation method and application thereof |
| CN107540998A (en) * | 2017-09-14 | 2018-01-05 | 金寨益企学农业科技有限公司 | A kind of recreation ground recreation facility foundation soil strengthening agent preparation method |
| CN109577124A (en) * | 2018-12-27 | 2019-04-05 | 舜元建设(集团)有限公司 | Roadbed reinforcement means on the spot under a kind of saturated soft soil geological conditions |
| CN110591727A (en) * | 2019-10-28 | 2019-12-20 | 长安大学 | Loose soil curing agent and preparation method thereof |
| CN112900409A (en) * | 2021-01-27 | 2021-06-04 | 中国铝业股份有限公司 | Dust suppression method for soil road for transportation |
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2008
- 2008-05-15 CN CNA2008100313087A patent/CN101265703A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI384941B (en) * | 2010-06-30 | 2013-02-11 | Univ Vanung | Construction of potted plants by means of concrete |
| CN106635038A (en) * | 2016-12-21 | 2017-05-10 | 新疆旱海绿洲生态科技有限公司 | Chemical curing agent as well as preparation method and application thereof |
| CN107540998A (en) * | 2017-09-14 | 2018-01-05 | 金寨益企学农业科技有限公司 | A kind of recreation ground recreation facility foundation soil strengthening agent preparation method |
| CN109577124A (en) * | 2018-12-27 | 2019-04-05 | 舜元建设(集团)有限公司 | Roadbed reinforcement means on the spot under a kind of saturated soft soil geological conditions |
| CN110591727A (en) * | 2019-10-28 | 2019-12-20 | 长安大学 | Loose soil curing agent and preparation method thereof |
| CN112900409A (en) * | 2021-01-27 | 2021-06-04 | 中国铝业股份有限公司 | Dust suppression method for soil road for transportation |
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