CN103115825A - Asphalt surface course structure indoor environment simulation and high-temperature deformation test method - Google Patents
Asphalt surface course structure indoor environment simulation and high-temperature deformation test method Download PDFInfo
- Publication number
- CN103115825A CN103115825A CN2013100175092A CN201310017509A CN103115825A CN 103115825 A CN103115825 A CN 103115825A CN 2013100175092 A CN2013100175092 A CN 2013100175092A CN 201310017509 A CN201310017509 A CN 201310017509A CN 103115825 A CN103115825 A CN 103115825A
- Authority
- CN
- China
- Prior art keywords
- test
- temperature
- test specimen
- asphalt
- time
- 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.)
- Granted
Links
Images
Abstract
The invention discloses an asphalt surface course structure indoor environment simulation and high-temperature deformation test method which comprises the following steps of: forming upper, middle and lower surface course asphalt concrete samples respectively, bonding the material of each layer through emulsified asphalt, and drilling on the surfaces of the formed full-thickness asphalt concrete samples; tightly covering the outer part of the sample with a layer of rock wool pipe, and forming a hole in corresponding position of the asphalt concrete sample; embedding a temperature sensor into the drilled hole; determining the control temperatures in different depths according to an actually measured pavement temperature field or a finite element simulation temperature field; placing the prepared samples in a constant-temperature air bath, and recording the time of reaching the control temperature in each depth and the end time; and when the heat insulation time reaches the start time of a minimum public interval, quickly taking out the samples and performing a permanent deformation test. The method disclosed by the invention can accurately simulate the stress state and the environment temperature of the surface course asphalt concrete in actual pavement so as to compare the high-temperature performances of the asphalt surface courses in different structural combinations.
Description
Technical field
The present invention relates to the traffic engineering technical field, concrete bituminous pavement top temperature field and stress field environment lab simulation and high temperature deformation test method.
Background technology
Fast development along with national economy, the construction of China's highway has obtained the achievement that attracts people's attention, semi-rigid asphalt pavement is wherein main pavement structure form, and the characteristics of highway heavy traffic and Heavy Traffic make bituminous pavement rut in various degree occur and destroy.Rut is the peculiar damage phenomenon of bituminous pavement, not only weakened the bulk strength of pavement structure, but also can cause the roughness descent of bituminous pavement, cause rainy day ponding, affect the driving safety of vehicle, so the high-temperature behavior of rational evaluation bituminous concrete and the high temperature permanent deformation of actual bituminous pavement is proposed specific requirement is the important means of bituminous pavement design.But existing evaluation method exists different problems separately, below summarizes it:
(1) empirical test method.Empirical test method mainly refers to Marshall stability test, and Marshall Test adopts standard marshal piece (diameter 101.6mm, high 63.5mm), and test condition is 60 ℃ of water-baths, measures Marshall stability and the flow valuve of test specimen.The simulation extreme difference of Marshall Test to the scene, Marshall stability is higher can not guarantee that bituminous pavement has anti-rut performance preferably, has not re-used Marshall Test in China's standard as the method for estimating high-temperature behavior.
(2) performance correlation test method.Performance correlation test method mainly comprises wheel tracking test and large-scale circuit, straight way test, mainly measures the relation curve between the distortion of number of loading and test specimen.The dynamic stability of small-sized wheel tracking test is the evaluation index of China's asphalt concrete elevated temperature property at present, but the distortion of the 5cm thickness bituminous concrete distortion of reflecting multilayer asphalt pavement structure fully under specific temperature conditions; The cost of circuit, straight way test is very large, the cycle is longer, generally is rarely used in the evaluation of engineering practice bituminous pavement high-temperature behavior.Simultaneously, although these class methods simulated field virtual condition to a certain extent, the performance correlation test can not obtain the basic mechanical parameter of material, can not be used for Pavement Design and pavement structure Mechanics Calculation.
(3) based on the test method of mechanics principle.test method based on mechanics principle mainly comprises Uniaxial Static, the single shaft dynamic load, the single shaft repeated creep test, three axle static loads, three axle dynamic loads, three axle repeated creep tests, torsion shear test, bending creep test and local triaxial test etc., these test methods are the virtual condition of simulated roadway to a certain extent, but except local triaxial test, other creep tests are all different with actual road surface for the simulation of compound sidewise restraint, and local triaxial test just is used for estimating the croop property of individual layer asphalt, the performance evaluation that can not be used for surface layer structure.
According to above-mentioned analysis as can be known, existing test method is inadequate to the simulation degree of through thickness bituminous pavement top structure on the one hand, can not reflect the loading characteristic of actual road surface under load action; On the other hand, existing test method can only be estimated the performance of asphalt under the steady temperature effect, the impact in temperature field in the road surface thickness scope can not be truly reflected, actual pavement structure road table absorption solar radiation, the inner virtual condition that heats up by the heat transmission between compound can not be simulated.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of asphalt mat structure indoor environment simulation and high temperature deformation test method are provided, the method can be simulated stress and the environment temperature of surface layer bituminous concrete in actual road surface exactly, thereby can the asphalt mat high-temperature behavior of different structure combination be compared, and can obtain easily the evaluating of asphalt concrete elevated temperature property under actual environment, the selection of choosing with design parameter for bituminous pavement bituminous concrete type provides foundation.The method is less demanding to testing equipment, easily realizes under existing test condition.
The technical solution used in the present invention is: a kind of asphalt mat structure indoor environment simulation and high temperature deformation test method comprise the following steps:
Step 1: difference moulding upper, middle and lower surface layer bituminous concrete test specimen, bond by emulsified asphalt between every layer material, the Full Depth Asphalt Pavement test specimen surface drilling that is forming;
Step 2: two-layer brushing insulating moulding coating is divided in bottom and side at test specimen, and two-layer insulating moulding coating solidifies under baking oven air blast environment respectively; Tightly cover one deck rock wool pipe in the test specimen outside, in the position perforate corresponding with the bituminous concrete test specimen;
Step 3: the temperature sensor dress is imbedded bored in good hole, the space in the hole adopts fine aggregate or cotton to fill, and uses the soft rubber plug that the aperture is sealed at the place, aperture;
Step 4: determine the control temperature at different depth place according to actual measurement pavement temperature field or finite element analogy temperature field, take the actual measurement on bituminous road surface or accounting temperature as the air bath thermostat temperature.Ready test specimen is placed in the air bath of constant temperature, record time and concluding time that each severity control temperature reaches, count the minimum public region of different depth temperature time of arrival and concluding time, as the control time of follow-up scrag test, the fluctuation range of controlling temperature is ± 1 ℃.
Step 5: when temperature retention time reaches the zero-time of minimum public region, rapidly test specimen taken out and carry out scrag test.The zero-time of minimum public region is the start time of scrag test, and the concluding time of minimum public region is got the concluding time by off-test time or test data analyzer.The Full Depth Asphalt Pavement test specimen is placed on test base, applies an xial feed in process of the test, the load waveform can be according to research needs setting, and the seaming chuck diameter is 80.6mm, lays two displacement transducers test axial deformations at the pressure head top.
As preferably, in described step 1, the test specimen diameter is 150 ± 2mm, and each surface layer height of specimen can determine according to road surface actual (real) thickness or design data, and described Asphalt emulsion content is 350g/m
2Hole every 2cm in described Full Depth Asphalt Pavement test specimen surface, bore dia is 5mm, and the degree of depth is 75mm.
As preferably, in described step 2, insulating moulding coating ground floor thickness is 0.3mm, solidifies 36h under 25 ℃ of air blast environment of baking oven, and second layer thickness is 0.5mm, solidifies 48h under 25 ℃ of air blast environment of baking oven.Described rock wool bore is 150mm, external diameter 155mm, and the overall height of aspect ratio bituminous concrete test specimen increases 5mm.
As preferably, in the xial feed that applies in described step 5, the seaming chuck diameter is 80.6mm.
Beneficial effect of the present invention: the scrag test method that at first the present invention relates to test specimen used can embody the bituminous pavement top general thickness, and test findings can reflect the high-temperature behavior difference of different pavement combination intuitively; The scrag test method that next the present invention relates to has realized the simulation in temperature field, concrete different depth place, and the concrete temperature environment of process of the test medium pitch and road surface virtual condition are more approaching; Again, the concrete outside pressure head can provide with the material sidewise restraints that change different from temperature, can the concrete actual forced status of simulated roadway medium pitch; At last, testing equipment required for the present invention is comparatively simple, only needs to apply power-equipment and the displacement transducer of axial force, and the requirement of equipment is hanged down and is beneficial to promoting the use of of this test method.
Description of drawings
Fig. 1 is the schematic diagram of bituminous concrete test specimen of the present invention temperature field lab simulation method;
Fig. 2 is the schematic diagram of scrag test method of the present invention.
Embodiment
The present invention will be further described below in conjunction with the drawings and specific embodiments.
As illustrated in fig. 1 and 2: a kind of asphalt mat structure indoor environment simulation and high temperature deformation test method comprise the following steps:
Step 1: difference moulding upper, middle and lower surface layer bituminous concrete test specimen, requiring the test specimen diameter is 150 ± 2mm, each surface layer height of specimen can be definite according to road surface actual (real) thickness or design data, bonds by emulsified asphalt between every layer material, and Asphalt emulsion content is 350g/m
2Hole every 2cm on Full Depth Asphalt Pavement test specimen 1 surface that forms, bore dia is 5mm, and the degree of depth is 75mm.
Step 2: two-layer brushing insulating moulding coating is divided in bottom and side at test specimen, and ground floor thickness is 0.3mm, solidifies 36h under 25 ℃ of air blast environment of baking oven, and second layer thickness is 0.5mm, solidifies 48h under 25 ℃ of air blast environment of baking oven.Tightly cover one deck rock wool pipe 2 in the test specimen outside, requiring rock wool pipe 2 internal diameters is 150mm, external diameter 155mm, and the overall height of aspect ratio bituminous concrete test specimen increases 5mm, in the position perforate corresponding with the bituminous concrete test specimen.
Step 3: temperature sensor 3 dresses are imbedded bored in good hole, the Material Fillings such as fine aggregate or cotton can be adopted in the space in the hole, use the soft rubber plug that the aperture is sealed at the place, aperture.
Step 4: determine the control temperature at different depth place according to actual measurement pavement temperature field or finite element analogy temperature field, take the actual measurement on bituminous road surface or accounting temperature as the air bath thermostat temperature.Ready test specimen is placed in the air bath of constant temperature, record time and concluding time that each severity control temperature reaches, count the minimum public region of different depth temperature time of arrival and concluding time, as the control time of follow-up scrag test, the fluctuation range of controlling temperature is ± 1 ℃.
Step 5: when temperature retention time reaches the zero-time of minimum public region, rapidly test specimen taken out and carry out scrag test.The zero-time of minimum public region is the start time of scrag test, and the concluding time of minimum public region is got the concluding time by off-test time or test data analyzer.Full Depth Asphalt Pavement test specimen 1 is placed on test base 6, applies an xial feed in process of the test, the load waveform can be according to research needs setting, and seaming chuck 5 diameters are 80.6mm, lays the 4 test axial deformations of two displacement transducers at the pressure head top.
Bituminous concrete pavement indoor environment simulation proposed by the invention with the mentality of designing of high temperature deformation test method is: by materials such as insulating moulding coating and rock wool pipes, realize the unidirectional delivery of test specimen and external environment condition heat, be that test specimen is that the surface is heated, and to test specimen conducted inside heat; Local loading by little pressure head makes pressure head bituminous concrete in addition can provide with the material sidewise restraints that change different from temperature simultaneously.Can reach following purpose by such design:
(1) simulation by thermograde and local loading realize that the concrete actual temperature environment of road pavement medium pitch and stress simulate more exactly.On the one hand, the test findings of surface layer Full Depth Asphalt Pavement can reflect the high-temperature behavior difference of different structure combination intuitively; On the other hand, by obtaining the correlation parameter of bituminous concrete mechanical model to the simple process of test figure.
(2) determine rational test specimen and pressure head size by FEM (finite element) calculation, not only can provide rational sidewise restraint, and can reduce the test error that causes due to size effect.
Test material preparation
Reasonably sample dimensions can be eliminated size effect, and according to existing result of study, the minimum test specimen diameter that can eliminate the bituminous concrete size effect should be not less than more than 3 times of nominal maximum particle diameter.Present indoor moulding bituminous concrete right cylinder test specimen maximum gauge is 150mm, and calculating best pressure head diameter by finite element modeling is 80.6mm, and the stress distribution of test specimen inside is identical with the stress distribution of bituminous pavement at this moment.For the warranty test precision, every kind of test specimen needs at least two.During actual moulding, can a minute cutting obtain two parallel test specimens in one-time formed right cylinder test specimen like this according to the twice of each layer actual (real) thickness in the road surface height as the monolayer material shaping test piece, reduce forming errors.Concrete shop experiment job step is:
(1) layers of material test specimen diameter is 150mm, the height of test specimen is determined according to the road surface actual (real) thickness, recommend adoption rotary compactor shaping test piece, utilize cutting machine that one-time formed test specimen cutting is obtained two parallel test specimens, the height of specimen departure is 2%, if the height of specimen after cutting is undesirable, should polish smooth to claimed range, otherwise discarded.Layers of material is bondd by emulsified asphalt form the through thickness test specimen, Asphalt emulsion content is 350g/m
2
(2) divide two-layer brushing insulating moulding coating in through thickness test specimen side and bottom, can adopt brush, roller, trowel or spraying method to brush.Concrete brushing technique is as follows:
1. driving bucket stirs: after driving bucket, all coating are placed in the material bucket, more than continuing to stir 2min, coating are stirred, to be advisable without lump, particle;
2. standing slaking: after coating is stirred, need to use after standing 30min slaking;
3. coating brushing: the coating of getting required quality stirs again, brushing ground floor thickness is 0.3mm, adopts the right-angled intersection brushing method during brushing, can carry out after one deck surface drying before second layer construction need etc., in order to accelerate surface drying speed, can solidify 36h under 25 ℃ of air blast environment of baking oven; Brushing second layer thickness is 0.5mm, solidifies 48h under 25 ℃ of air blast environment of baking oven;
4. coating stores: when coating does not once use, need the pocket that is coated with in paint can is sealed, after building bung, place shady and cool place and preserve.
Should guarantee air themperature in the coating application process more than 10 ℃, be advisable with 25 ℃, air humidity needs simultaneously to guarantee that less than 60% the surface temperature of test specimen is 15 ~ 60 ℃, can not directly be coated in the test specimen surface of high temperature or low temperature.
Testing equipment and material requirements
(1) testing machine can adopt the testing equipments such as UTM or MTS, and other alternative equipment also can adopt, but must satisfy following requirement:
1. many waveforms, the stable vertical load of multi-frequency should be able to be provided, and the load range should be more than 25kN, and the load measurement precision is 1N.
2. temperature control environmental cabinet, 0.1 ℃ of temperature control accuracy, the temperature-control range maximal value is at least 65 ℃;
(2) data acquisition system (DAS), can automatically gather the electric signal of load transducer and surface displacement sensor, the data that gather can be stored in acquisition system, maybe can be shown in real time the controlling test end by the X-Y curve form, and the measuring accuracy that requires the surface displacement sensor is 0.1%mm.
(3) constant temperature oven is used for the test specimen insulation, and the accuracy of temperature control that requires baking oven is 0.1 ℃, should have the air blast circulation system.
(4) heat-barrier material.Insulating moulding coating should have lower coefficient of heat conductivity and higher adhesive strength, requires the coefficient of heat conductivity＜0.06W/ (mK) of thermal insulation coatings, can firmly be attached at the test specimen surface after the paint solidification moulding, and plays the effect of certain insulation.
The rock wool tube material is good heat-insulating heat-preserving material, its coefficient of heat conductivity is very low, require the coefficient of heat conductivity＜0.03W/ (mK) of rock wool pipe, requiring the rock wool bore is 150mm, external diameter 155mm, length is 185mm, and should have certain intensity, can not produce distortion with process of the test in the test temperature scope.
Test method and step should satisfy following condition:
(1) preliminary work
1. make on request each layer test specimen, every group of parallel test specimen of test is no less than 2, measures simultaneously and record height and the inner and outer diameter of test specimen, need to satisfy the given size requirement.Each test specimen must utilize " highway engineering pitch and Asphalt Mixture Experiment rules " (JTJ052-2000) middle density measuring method measurement test specimen density simultaneously, and calculates voidage, satisfies the test objective requirement.
2. adopt on request the emulsified asphalt bonding testing piece, on request at test specimen side and bottom brushing insulating moulding coating, wrap tightly one deck rock wool tube material before the test specimen insulation outside test specimen.
3. bituminous concrete through thickness test specimen is placed in stable constant temperature oven and is incubated, control according to the temperature field test findings, between test specimen, distance should greater than 10mm, should have the air blast circulation system in baking oven.
(2) testing method
1. when temperature retention time reaches the zero-time of minimum public region, rapidly test specimen is taken out, upper and lower surface at test specimen respectively pads two polyethylene films and smears lubricated butter in the centre, then place seaming chuck, should be noted when placing pressure head pressure head is placed on test specimen upper surface middle part position (in order to guarantee the accurate of ram position, can draw in advance in test specimen upper surface center the circle that Radius is 40.3mm).The process that test specimen and pressure head are placed is wanted rapidly, scatters and disappears to reduce the test specimen temperature.
2. lay the surface displacement sensor at the seaming chuck top, and sensor is connected with data acquisition system (DAS).
3. carry out prestrain with the 20kPa load, the prestrain time is 5 ~ 10min, if need the different load stresses of research or loading speed on the impact of permanent strain performance, load stress peak value, load waveform, load action time and load circulating continuancing time need be set.
4. utilize data acquisition system (DAS) to record under load action, permanent strain and number of loading curve are until test specimen adds up permanent strain or number of loading reaches when setting stop condition, termination test, the load precision of requirement equipment is 1N, and the displacement measurement precision is 0.1%mm.
For the accuracy of warranty test, reduce the undulatory property that load loads, after test duration 24h, suggestion closing device power supply 2h carries out correlation test again, to prevent that testing equipment is tired, to strengthen test error.
(3) in test method of the present invention, require:
1. the same loading condition of same pavement structure need be carried out at least 2 parallel experiments, less than 20%, the mean value of desirable twice test is as test findings when the deformation coefficient of twice test total deformation, when analyzing reason greater than 20% the time, and supplementary test, until meet the demands;
Should comprise test temperature in test report, load waveform, load stress level, the correlation parameters such as each layer test specimen density, voidage.
Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.In the present embodiment not clear and definite each ingredient all available prior art realized.
Claims (4)
1. an asphalt mat structure indoor environment is simulated and the high temperature deformation test method, it is characterized in that: comprise the following steps:
Step 1: difference moulding upper, middle and lower surface layer bituminous concrete test specimen, bond by emulsified asphalt between every layer material, the Full Depth Asphalt Pavement test specimen surface drilling that is forming;
Step 2: two-layer brushing insulating moulding coating is divided in bottom and side at test specimen, and two-layer insulating moulding coating solidifies under baking oven air blast environment respectively; Tightly cover one deck rock wool pipe in the test specimen outside, in the position perforate corresponding with the bituminous concrete test specimen;
Step 3: the temperature sensor dress is imbedded bored in good hole, the space in the hole adopts fine aggregate or cotton to fill, and uses the soft rubber plug that the aperture is sealed at the place, aperture;
Step 4: the control temperature of determining the different depth place according to actual measurement pavement temperature field or finite element analogy temperature field, take the actual measurement on bituminous road surface or accounting temperature as the air bath thermostat temperature, ready test specimen is placed in the air bath of constant temperature, record time and concluding time that each severity control temperature reaches, count the minimum public region of different depth temperature time of arrival and concluding time, as the control time of follow-up scrag test, the fluctuation range of controlling temperature is ± 1 ℃;
step 5: when temperature retention time reaches the zero-time of minimum public region, rapidly test specimen taken out and carry out scrag test, the zero-time of minimum public region is the start time of scrag test, the concluding time of minimum public region is got the concluding time by off-test time or test data analyzer, the Full Depth Asphalt Pavement test specimen is placed on test base, apply an xial feed in process of the test, the load waveform can be according to the setting of research needs, the seaming chuck diameter is 80.6mm, lay two displacement transducers test axial deformations at the pressure head top.
2. asphalt mat structure indoor environment simulation according to claim 1 and high temperature deformation test method, it is characterized in that: in described step 1, the test specimen diameter is 150 ± 2mm, each surface layer height of specimen can be definite according to road surface actual (real) thickness or design data, and described Asphalt emulsion content is 350g/m
2, hole every 2cm in described Full Depth Asphalt Pavement test specimen surface, and bore dia is 5mm, and the degree of depth is 75mm.
3. asphalt mat structure indoor environment simulation according to claim 1 and high temperature deformation test method, it is characterized in that: in described step 2, insulating moulding coating ground floor thickness is 0.3mm, solidify 36h under 25 ℃ of air blast environment of baking oven, second layer thickness is 0.5mm, solidify 48h under 25 ℃ of air blast environment of baking oven, described rock wool bore is 150mm, external diameter 155mm, and the overall height of aspect ratio bituminous concrete test specimen increases 5mm.
4. asphalt mat structure indoor environment simulation according to claim 1 and high temperature deformation test method, it is characterized in that: in the xial feed that applies in described step 5, the seaming chuck diameter is 80.6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310017509.2A CN103115825B (en) | 2013-01-17 | 2013-01-17 | Asphalt surface course structure indoor environment simulation and high-temperature deformation test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310017509.2A CN103115825B (en) | 2013-01-17 | 2013-01-17 | Asphalt surface course structure indoor environment simulation and high-temperature deformation test method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103115825A true CN103115825A (en) | 2013-05-22 |
| CN103115825B CN103115825B (en) | 2015-01-28 |
Family
ID=48414249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310017509.2A Expired - Fee Related CN103115825B (en) | 2013-01-17 | 2013-01-17 | Asphalt surface course structure indoor environment simulation and high-temperature deformation test method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103115825B (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104880545A (en) * | 2015-05-26 | 2015-09-02 | 山西省交通科学研究院 | Pavement cement concrete temperature and humidity test mould |
| CN105784520A (en) * | 2016-04-25 | 2016-07-20 | 长安大学 | Indoor programmable asphalt mixture fatigue simulation test device |
| CN106153446A (en) * | 2016-08-31 | 2016-11-23 | 南京林业大学 | A kind of method of testing of permanent deformation for asphalt pavement |
| CN106501099A (en) * | 2016-09-29 | 2017-03-15 | 东南大学 | Emulsified asphalt cold in place recycling compound high-temerature creep test method |
| CN106525601A (en) * | 2016-12-01 | 2017-03-22 | 王燕 | Integrated epoxy asphalt low-temperature load deformation temperature measuring device |
| CN106841090A (en) * | 2016-12-21 | 2017-06-13 | 山西省交通科学研究院 | One kind is based on SBS modified pitch overall process calibrated shot infrared spectrum method for detecting dose |
| CN108760615A (en) * | 2018-03-07 | 2018-11-06 | 宁夏大学 | A kind of simulating natural condition bituminous concrete tester |
| CN109580712A (en) * | 2018-12-01 | 2019-04-05 | 河南工业大学 | A kind of coating cooling effect evaluation method |
| CN110658079A (en) * | 2019-09-18 | 2020-01-07 | 浙江大学 | Indoor characterization method of asphalt surface layer under multiple environment gradient coupling |
| CN111044556A (en) * | 2019-12-18 | 2020-04-21 | 河海大学 | Method and device for measuring load temperature strain coefficient of concrete sample at high temperature |
| CN110904946B (en) * | 2019-12-11 | 2021-11-16 | 安徽三联学院 | Foundation reinforcing method |
| CN113654888A (en) * | 2021-08-09 | 2021-11-16 | 长沙学院 | Method for rapidly predicting permanent deformation of carbonaceous mudstone |
| CN114264526A (en) * | 2021-12-22 | 2022-04-01 | 厦门华特公路沥青技术有限公司 | Method for measuring shear deformation resistance of sand type mixture |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6125685A (en) * | 1997-09-30 | 2000-10-03 | The Board Of Trustees Of The University Of Arkansas | Apparatus and method for the evaluation of asphalt mixes |
| CN101135619A (en) * | 2007-07-13 | 2008-03-05 | 东南大学 | Asphalt concrete elevated temperature property testing method |
-
2013
- 2013-01-17 CN CN201310017509.2A patent/CN103115825B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6125685A (en) * | 1997-09-30 | 2000-10-03 | The Board Of Trustees Of The University Of Arkansas | Apparatus and method for the evaluation of asphalt mixes |
| CN101135619A (en) * | 2007-07-13 | 2008-03-05 | 东南大学 | Asphalt concrete elevated temperature property testing method |
Non-Patent Citations (1)
| Title |
|---|
| 张裕卿: ""沥青混合料高温变形规律及试验方法研究"", 《中国优秀硕士学位论文数据库》, 31 December 2007 (2007-12-31), pages 1 - 73 * |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104880545A (en) * | 2015-05-26 | 2015-09-02 | 山西省交通科学研究院 | Pavement cement concrete temperature and humidity test mould |
| CN105784520A (en) * | 2016-04-25 | 2016-07-20 | 长安大学 | Indoor programmable asphalt mixture fatigue simulation test device |
| CN106153446A (en) * | 2016-08-31 | 2016-11-23 | 南京林业大学 | A kind of method of testing of permanent deformation for asphalt pavement |
| CN106501099A (en) * | 2016-09-29 | 2017-03-15 | 东南大学 | Emulsified asphalt cold in place recycling compound high-temerature creep test method |
| CN106525601B (en) * | 2016-12-01 | 2023-06-09 | 王燕 | Integrated epoxy asphalt low-temperature load deformation temperature measuring device |
| CN106525601A (en) * | 2016-12-01 | 2017-03-22 | 王燕 | Integrated epoxy asphalt low-temperature load deformation temperature measuring device |
| CN106841090A (en) * | 2016-12-21 | 2017-06-13 | 山西省交通科学研究院 | One kind is based on SBS modified pitch overall process calibrated shot infrared spectrum method for detecting dose |
| CN108760615A (en) * | 2018-03-07 | 2018-11-06 | 宁夏大学 | A kind of simulating natural condition bituminous concrete tester |
| CN108760615B (en) * | 2018-03-07 | 2024-04-16 | 宁夏大学 | Asphalt concrete tester simulating natural conditions |
| CN109580712A (en) * | 2018-12-01 | 2019-04-05 | 河南工业大学 | A kind of coating cooling effect evaluation method |
| CN110658079A (en) * | 2019-09-18 | 2020-01-07 | 浙江大学 | Indoor characterization method of asphalt surface layer under multiple environment gradient coupling |
| CN110658079B (en) * | 2019-09-18 | 2024-04-05 | 浙江大学 | Indoor characterization method of asphalt surface layer under multiple environment gradient coupling |
| CN110904946B (en) * | 2019-12-11 | 2021-11-16 | 安徽三联学院 | Foundation reinforcing method |
| CN111044556A (en) * | 2019-12-18 | 2020-04-21 | 河海大学 | Method and device for measuring load temperature strain coefficient of concrete sample at high temperature |
| CN113654888A (en) * | 2021-08-09 | 2021-11-16 | 长沙学院 | Method for rapidly predicting permanent deformation of carbonaceous mudstone |
| CN114264526A (en) * | 2021-12-22 | 2022-04-01 | 厦门华特公路沥青技术有限公司 | Method for measuring shear deformation resistance of sand type mixture |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103115825B (en) | 2015-01-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103115825B (en) | Asphalt surface course structure indoor environment simulation and high-temperature deformation test method | |
| CN109163985B (en) | In-situ testing device and method for testing shear strength and long-term creep deformation of rock sample | |
| CN103344705B (en) | Method of measuring rock brittleness index through applying acoustic emission energy values | |
| CN105716969B (en) | A kind of bituminous paving feather plucking effect test method based on three-dimensional laser detection technique | |
| CN105241761A (en) | Method for evaluating bonding strength and durability between layers of asphalt road | |
| CN105155593A (en) | Deformation-visible pile foundation model test loading box | |
| CN107219131B (en) | A kind of asphalt horizontal shear performance test apparatus and method considering local axial compressive force | |
| CN103364310B (en) | Strong gel strength measuring apparatus and measuring method | |
| CN102494962B (en) | Circulating single shaft dynamic load testing device with function of simulating tire load | |
| CN105115893A (en) | Method and device for shearing test on interface between steel bridge deck and pavement layer | |
| CN104316416B (en) | A kind of asphalt semicircle loads direct shear test device and test method thereof | |
| CN108956349A (en) | A kind of test method measuring asphalt interfacial transition zone characteristic parameter | |
| CN106483011A (en) | Bituminous paving each layer dynamic testing method and thread gluing device | |
| CN102393339A (en) | Test method and apparatus for simulating actual pavement cracking through crack | |
| CN102944483A (en) | Testing device and method for creep performance of material under coupling action of multiple factors | |
| CN109668782B (en) | Method for measuring fracture initiation fracture toughness of concrete | |
| CN108645676A (en) | Seasonal frost region subgrade soils material damage methods of testing and evaluating based on ultrasonic technology | |
| CN107907430B (en) | Test device and test method for testing shearing performance of asphalt mixture | |
| CN203534875U (en) | Road surface crack pouring material binding power measuring test specimen forming and stretching clamping device | |
| CN106501099A (en) | Emulsified asphalt cold in place recycling compound high-temerature creep test method | |
| CN203519527U (en) | Temperature field and heat conductivity coefficient tester applicable to multilayer pavement structure | |
| CN113567072B (en) | Simulation experiment device and method for bridge expansion joint crack propagation | |
| CN104655499A (en) | Equipment for measuring interlamellar treatment measures torsional shear resistance between pavement structure layers | |
| Xie et al. | Analysis of a methodology for torsional test under normal stress and shear performance for asphalt mixtures | |
| CN106442603A (en) | Test method capable of simulating thermophysical parameters of soil mass under different thermal loads |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20150128 Termination date: 20180117 |