CN202614757U - Testing device for evaluating long-term performance of snow self-melting pavement with salinizing substances by simulating rainfall - Google Patents
Testing device for evaluating long-term performance of snow self-melting pavement with salinizing substances by simulating rainfall Download PDFInfo
- Publication number
- CN202614757U CN202614757U CN 201220076770 CN201220076770U CN202614757U CN 202614757 U CN202614757 U CN 202614757U CN 201220076770 CN201220076770 CN 201220076770 CN 201220076770 U CN201220076770 U CN 201220076770U CN 202614757 U CN202614757 U CN 202614757U
- Authority
- CN
- China
- Prior art keywords
- salinizing
- water
- substances
- water container
- rainfall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The utility model discloses a testing device for evaluating the long-term performance of a snow self-melting pavement with salinizing substances by simulating rainfall. A water feeding component comprises a valve, a cylindrical water container, a water inlet pipe, a water outlet pipe and a water press and is used for providing rainfall needed by testing for the testing device. A testing component comprises a sprayer, a cylindrical water container, a valve, a water outlet pipe and a water container. A support component comprises a vertically movable cross rod, a supporting rod and a test piece base. The precipitation quantity of the salinizing substances in asphalt mixture with different salinizing substance contents under the same rainfall and the precipitation quantity of the salinizing substances in asphalt mixture with the same salinizing substance content under different rainfall can be measured by the testing device, the influence of the different rainfall on the precipitation quantity of the salinizing substances in the asphalt mixture and the influence of different salinizing substance contents of the asphalt mixture on the precipitation quantity of the salinizing substances are analyzed and compared, reliable basis is provided for testing, and accordingly, basis is provided for evaluating the long-term performance of the asphalt mixture with the salinizing substances.
Description
Technical field
The utility model relates to the highway pavement experimental technique; Be particularly related to a kind of through the testing equipment of simulated rainfall evaluation salt from snow melt road surface long-term behaviour; Can be applied to simulate behind the summer rainfall salt from the test of the long-term snow melt effect in snow melt road surface, estimate salt from the snow melt road surface long-term snow melt performance.
Background technology
Winter, the northern China most of areas was frozen with accumulated snow, and indivedual areas, south also have sleet to form, and this is perplexing road traffic department always, needs lot of manpower and material resources to remove ice and snow, and each place has begun initiatively to suppress the research of freezing technology thus.Initiatively suppressing freezing technology is meant in engineering construction or overhaul road surface; Make the road surface have the purpose that specific function reaches the snow melt deicing thereby initiatively adopt correlation technique in advance or in compound, add proprietary material, salt is wherein a kind of from the snow melt road surface.Salt refers to from the snow melt road surface in asphalt, add certain salt, makes its requirement that can satisfy pavement performance, has ice-melt snow function again.Salt is effective because of its ice-melt snow from the snow melt road surface, construction technology simple, be easy to popularization is widely used.The chronicity that this kind of how to evaluate road surface suppresses freezing efficiency is one of key problem of this research.Under the different weather conditions (snowfall, rainfall amount, temperature, humidity), the precipitation rate of snow melt road surface effective constituent salt is different, and the precipitation rate of salt directly influences its long-term snow melt effect.
Harbin Institute of Technology utilizes the MTS material test system that test specimen is applied dead load to carry out deicing test; Chang An University has developed a kind of road ice-breaking Simulation evaluation test unit; Simulation is at the inhibition freezing efficiency and the ice-breaking capacity that dynamically repeat road surface under the vehicular load effect; These two kinds of methods all are that salt can not be estimated snow melt road surface summer through after the rainwash from the ice-breaking capacity on snow melt road surface under the simulation low temperature condition, whether have the snow melt performance.
Summary of the invention
The purpose of the utility model is to provide a kind of and estimates the testing equipment of salt from snow melt road surface long-term behaviour through simulated rainfall; This equipment is through the simulation summer rainfall; Measure asphalt salt amount of separating out under identical rainfall amount of different salt content; And the asphalt of identical salt content salt amount of separating out under different rainfall amounts, for the long-term usability evaluation of salt asphalt provides foundation, thereby reliable basis is provided for rational highway design.This testing of equipment principle is simple, easy and simple to handle, and the detection of testing apparatus and the manufacturing expense of instrument are relatively low, and all elements of instrument are homemade, and use, easy to maintenance, and this testing apparatus good reliability help applying of this equipment.
In order to achieve the above object, the utility model adopts following technical scheme to be achieved.
A kind of simulated rainfall that passes through is estimated the testing equipment of salt from snow melt road surface long-term behaviour, comprises to wet part, test component and support part, it is characterized in that; Saidly comprise valve, the first cylindrical water container, water inlet pipe, rising pipe, water pressure machine to wet part, said test component comprises shower nozzle, the second cylindrical water container, valve, rising pipe, water container, and said support part comprises cross bar, support bar, the test specimen base that moves up and down; The first cylindrical water container links to each other with the water pressure machine through rising pipe, and on rising pipe, is provided with valve, and the water pressure machine is linking to each other with water inlet pipe; Water inlet pipe is connected with shower nozzle, and screw thread is arranged at shower nozzle top, links to each other with cross bar; Cross bar links to each other with support bar; The second cylindrical water container is set on the support bar, in cylindrical water container, is provided with the test specimen base, cylindrical water container is outer to link to each other with rising pipe; Rising pipe is provided with valve, places in the water container.
Above-mentioned shower nozzle lower surface is the circular arc structure.
The outstanding advantage of the utility model technology is:
(1) new testing equipment should be able to reasonably be simulated the rainfall in summer, through control valve and water pressure machine, confirms the size of shower nozzle rainfall amount, keeps the stability of current.
(2) new testing equipment is estimated the long-term usability of salt from the snow melt road surface through measuring the amount of separating out of salt after the rain drop erosion.
(3) new testing equipment can make rainfall be washed into whole test specimen surface, in time rainwater is discharged, and meets the road surface actual conditions, and rainwater is collected, and is used for testing next time, saves great amount of water resources, and makes measurement result more accurate.
(4) new equipment is at device structure with use aspect the flow process two all simple and convenient as much as possible, so that each local use of test.
Description of drawings
Fig. 1 is that a kind of of the utility model estimates the testing equipment of salt from snow melt road surface long-term behaviour through simulated rainfall;
Fig. 2 is a testing equipment part of detecting shower nozzle lower surface circular arc structural map.
Fig. 3 is a testing equipment part of detecting shower nozzle lower surface detail view.
Embodiment
Referring to Fig. 1-3, this through the testing equipment of simulated rainfall evaluation salt from snow melt road surface long-term behaviour, comprise to wet part, test component and support part; It is characterized in that, saidly comprise the cylindrical water container of valve 5, first 8, water inlet pipe 9, rising pipe 10, water pressure machine 12 to wet part, said test component comprises the cylindrical water container of shower nozzle 2, second 4, valve 5, rising pipe 6, water container 7; Said support part comprises that the cross bar 1, support bar 3, test specimen base 11, the first cylindrical water containers 8 that move up and down link to each other with water pressure machine 12 through water outlet 10 pipes, and on rising pipe, are provided with valve 5; The water pressure machine is linking to each other with water inlet pipe 9; Water inlet pipe is connected with shower nozzle 2, and screw thread is arranged at shower nozzle top, links to each other with cross bar 1; Cross bar 1 links to each other with support bar 3; The second cylindrical water container 4 is set on the support bar 3, in cylindrical water container, is provided with test specimen base 11, cylindrical water container is outer to link to each other with rising pipe 6; Rising pipe 6 is provided with valve 5, places in the water container 7.Shower nozzle 2 lower surfaces are the circular arc structure.
With reference to Fig. 1, water container 8 is hung on eminence, the water of the inside can all be discharged; Water gets into water pressure machine 12 by water container 8 through rising pipe 10, and the effect of water pressure machine mainly is to regulate hydraulic pressure to keep waterflow stabilization, flows into shower nozzle by water inlet pipe 9 again; Wash away test specimen, concrete test procedure is following:
1. the water of certain mass is packed in the water container 8; Open valve 5 and water pressure machine 12, make water flow into shower nozzles 2, get a bore and be 20 centimetres disposable plastic or paper bowl through rising pipe 10; At its bottom cutter one duck eye bigger slightly, then bowl is placed on the jar of a uncovered than iblet.In jar a vial is arranged, bottleneck joins with the duck eye at the bowl end, measures the amount of rainfall with this simple machine.
This equipment is placed on the test specimen base 11 accepts precipitation, regulate cross bar 1, making the distance of itself and test specimen base 11 is 70 centimetres.After treating certain hour, the water that weighs up in the bottle with scale is heavy, and 30 gram water promptly are equivalent to 1 millimeter rainfall amount.Through regulating hydraulic pressure, confirm rainfall amount hourly.
2. the test specimen (plastic as required large-scale marshal piece or small-sized marshal piece) with forming is placed on the test specimen base 11; Test specimen is except that upper surface, with the encapsulant sealing, through regulating cross bar 1; The distance that keeps test specimen base 11 and shower nozzle 2; So that shower nozzle watering area and test specimen upper surface fit like a glove, as required rainfall amount adjustment hydraulic pressure and valve begin test.
3. in the process of the test, the valve 5 of water container 4 is opened, in time discharged so that water drops to behind the test specimen surface, better the actual rainfall situation of simulated roadway.
4. collect the rainwater that ejects with water container 7.
5. after the water in the water container 8 was all discharged, test finished, and collected the water in water container 4 and 7, measured density with picnometer, measured the temperature and the quality of water.
6. collected water is poured in the water container 8, tested next time, repeat above-mentioned steps 1-5.
7. when measuring another rainfall amount, repeat above-mentioned steps 1-6.
At last, test figure is gathered arrangement,, calculate the amount of separating out of salt in the test specimen according to the proportion of pure water under a certain temperature and the difference in specific gravity of washing away water behind the test specimen.Salt total content in the amount of separating out of salt and the test specimen is compared, can draw the percent of separating out of salt.
This testing apparatus can be simulated the influence that the summer rainfall situation is separated out salt truly, guarantees reliability of testing result, and its practical application effect is remarkable.
Claims (2)
1. a testing equipment that passes through simulated rainfall evaluation salt from snow melt road surface long-term behaviour comprises to wet part, test component and support part, it is characterized in that; Saidly comprise valve (5), the first cylindrical water container (8), water inlet pipe (9), rising pipe (10), water pressure machine (12) to wet part, said test component comprises shower nozzle (2), the second cylindrical water container (4), valve (5), rising pipe (6), water container (7), and said support part comprises cross bar (1), support bar (3), the test specimen base (11) that moves up and down; The first cylindrical water container (8) links to each other with water pressure machine (12) through water outlet (10) pipe; And on rising pipe, be provided with valve (5), and the water pressure machine is linking to each other with water inlet pipe (9), and water inlet pipe is connected with shower nozzle (2); Screw thread is arranged at shower nozzle top; Link to each other with cross bar (1), cross bar (1) links to each other with support bar (3), and the second cylindrical water container (4) is set on the support bar (3); In cylindrical water container, be provided with test specimen base (11); Cylindrical water container is outer to link to each other with rising pipe (6), and rising pipe (6) is provided with valve (5), places in the water container (7).
2. a kind of simulated rainfall that passes through according to claim 1 is estimated the testing equipment of salt from snow melt road surface long-term behaviour, it is characterized in that said shower nozzle (2) lower surface is the circular arc structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220076770 CN202614757U (en) | 2012-03-05 | 2012-03-05 | Testing device for evaluating long-term performance of snow self-melting pavement with salinizing substances by simulating rainfall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220076770 CN202614757U (en) | 2012-03-05 | 2012-03-05 | Testing device for evaluating long-term performance of snow self-melting pavement with salinizing substances by simulating rainfall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202614757U true CN202614757U (en) | 2012-12-19 |
Family
ID=47348446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220076770 Expired - Fee Related CN202614757U (en) | 2012-03-05 | 2012-03-05 | Testing device for evaluating long-term performance of snow self-melting pavement with salinizing substances by simulating rainfall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202614757U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102621292A (en) * | 2012-03-05 | 2012-08-01 | 长安大学 | Testing apparatus for evaluating long-term performance of salinized matter self-snow melting road surface by simulating rainfall |
| CN104807980A (en) * | 2015-05-23 | 2015-07-29 | 林光琴 | Evaluation method for snow melting performance of pavement of highway |
-
2012
- 2012-03-05 CN CN 201220076770 patent/CN202614757U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102621292A (en) * | 2012-03-05 | 2012-08-01 | 长安大学 | Testing apparatus for evaluating long-term performance of salinized matter self-snow melting road surface by simulating rainfall |
| CN102621292B (en) * | 2012-03-05 | 2015-10-28 | 长安大学 | The test unit of salt from snow melt road surface long-term behaviour is evaluated by simulated rainfall |
| CN104807980A (en) * | 2015-05-23 | 2015-07-29 | 林光琴 | Evaluation method for snow melting performance of pavement of highway |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102621292B (en) | The test unit of salt from snow melt road surface long-term behaviour is evaluated by simulated rainfall | |
| CN102590474B (en) | Fine water erosion simulation test device for slope channel system, and test method for fine water erosion simulation test device | |
| KR101195407B1 (en) | Adjustable debris flow flume with multi-open channels and roughness in channels | |
| CN103245772A (en) | Indoor analog experiment device for roadbed slope erosion | |
| CN204882161U (en) | Device that karst cave decentralized is dripped and is collected and monitor | |
| CN103439236A (en) | Blocking experiment stimulation device and method for water-permeable concrete pavement | |
| CN102590475A (en) | Fine simulation test device and fine simulation test method for slope water erosion | |
| CN104374894A (en) | Fine simulation test method for water-erosion process of small-basin different-landform unit | |
| CN102095674A (en) | Permeability testing method of water-permeable paving material, and special tester thereof | |
| CN202614757U (en) | Testing device for evaluating long-term performance of snow self-melting pavement with salinizing substances by simulating rainfall | |
| CN204435306U (en) | A kind of simulation tailing dam ecological revetment system | |
| CN203414388U (en) | Water-permeable concrete pavement blocking experiment simulation device | |
| CN201697855U (en) | Rainfall erosion monitoring groove | |
| CN103983480B (en) | A kind of packaged type runoff and sediment different spaces distribution silt content monitoring device | |
| CN106644914B (en) | A kind of evaluation method of snow melt asphalt snow melt effect durability | |
| CN104062159A (en) | Porous asphalt mixture gap blocking experiment method | |
| CN210720044U (en) | Experimental survey device is collected to bush canopy interception volume and stem flow | |
| CN110296930A (en) | A kind of device and test method of on-site measurement porous pavement infiltration coefficient | |
| CN206832507U (en) | A kind of multi-functional riverbed sampler | |
| CN104990839B (en) | A kind of sealing material permeability test device of mist containing sand | |
| CN205404398U (en) | Simulation test device that bituminous paving blocks up influences heavy metal pollution in runoff that permeates water | |
| CN201955291U (en) | Permeability testing instrument for water permeable paving material | |
| CN101196441A (en) | Vacuum sampling device for monitoring rainwater drain water quality | |
| CN204405494U (en) | The determinator of porous pavements limit water discharge | |
| CN209280523U (en) | A kind of simulation permeable pavement structure layer pervasion test device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121219 Termination date: 20160305 |