CN106680113B - Using the method for interlayer shear experimental evaluation road surface aging conditions - Google Patents
Using the method for interlayer shear experimental evaluation road surface aging conditions Download PDFInfo
- Publication number
- CN106680113B CN106680113B CN201710031120.1A CN201710031120A CN106680113B CN 106680113 B CN106680113 B CN 106680113B CN 201710031120 A CN201710031120 A CN 201710031120A CN 106680113 B CN106680113 B CN 106680113B
- Authority
- CN
- China
- Prior art keywords
- disease
- core sample
- aging
- shear
- section
- 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.)
- Active
Links
- 230000032683 aging Effects 0.000 title claims abstract description 49
- 239000011229 interlayer Substances 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000011156 evaluation Methods 0.000 title claims description 10
- 201000010099 disease Diseases 0.000 claims abstract description 56
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 claims abstract description 56
- 238000012360 testing method Methods 0.000 claims abstract description 26
- 238000002474 experimental method Methods 0.000 claims abstract description 11
- 239000010410 layer Substances 0.000 claims abstract description 11
- 239000002344 surface layer Substances 0.000 claims abstract description 7
- 238000005070 sampling Methods 0.000 claims abstract description 5
- 238000010008 shearing Methods 0.000 claims description 34
- 230000035882 stress Effects 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 3
- 230000002123 temporal effect Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000005553 drilling Methods 0.000 abstract 1
- 239000000523 sample Substances 0.000 description 55
- 238000010586 diagram Methods 0.000 description 13
- 239000000463 material Substances 0.000 description 9
- 238000011160 research Methods 0.000 description 6
- 238000010835 comparative analysis Methods 0.000 description 3
- 239000010426 asphalt Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 230000004069 differentiation Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002431 foraging effect Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001558 permutation test Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Road Paving Structures (AREA)
Abstract
本发明公开了一种采用层间剪切实验评价路面老化情况的方法。包括以下步骤：对现场路面钻芯取样，采集不同服役年限尚未产生病害路段以及相应服役年限病害路段的路面芯样；尚未产生病害路段的芯样进行上面层和中面层之间的层间剪切试验，根据试验所得到的数据作出其相关的抗剪切性能老化曲线图；对病害路段的路面芯样进行上面层和中面层之间的层间剪切试验，将得到的数据以及图表进行病害边界条件处理，界定该段路面的病害边界条件；进行联合分析，共同评价整条路段的老化情况。本发明首次采用病害边界条件和老化曲线联合分析的方法来确定路面芯样的老化情况，且所有分析结果都依据层间实验的检测数据而界定，相比起其他方法有更强的适用性。The invention discloses a method for evaluating the aging condition of pavement by adopting an interlayer shear test. It includes the following steps: sampling the road surface by drilling cores, collecting road core samples of road sections that have not yet developed disease in different service years and the road sections with corresponding service years; According to the data obtained from the test, the relative shear resistance aging curve is made; the interlayer shear test between the upper layer and the middle surface layer is carried out on the road core sample of the diseased road section, and the obtained data and chart The disease boundary conditions are processed to define the disease boundary conditions of the road section; joint analysis is carried out to jointly evaluate the aging condition of the entire road section. The present invention adopts the method of joint analysis of disease boundary condition and aging curve for the first time to determine the aging condition of the road core sample, and all analysis results are defined according to the detection data of interlayer experiments, which has stronger applicability than other methods.
Description
Technical field
The invention belongs to technical field of buildings, and in particular to a kind of using interlayer shear experimental evaluation road surface aging conditions
Method.
Background technique
Bituminous pavement is due to making it disease easily occur under aging and particular surroundings with unique characteristic semi-flexible.Its
In most important Damage Types first is that track.About the origin cause of formation of track, current research suggests that, this is due primarily to pitch material
Material softens what the interaction for cutting the factors such as the decaying of performance with shearing strength at intersection generated in a high temperauture environment.
It is an important road quality index that shearing strength at intersection, which cuts performance, characterizes road surface in the energy for resisting shearing strength between layers
The size of power.Interlayer shear experiment is that a kind of shearing strength at intersection of Research on Asphalt Mixture cuts the routine experiment of performance, this experiment is surveyed
The shear strength of interlayer is tried to characterize the bonding force between the different layers of road surface, while also be used to characterize its mixture itself
Shear strength.There are many selection in the selection of research object type, the selection of research object of the present invention is logical for this test
It crosses detection road surface and fetches the cutting performance of core sample to evaluate the aging conditions on road surface, to probe into the different location and difference of disease
The rule of the Interlaminar shear strengths of the core sample in military service time.Although carrying out many grinding for shearing strength at intersection shear force both at home and abroad
Study carefully, also once carried out the test of the shearing strength at intersection shear force of different sizes and different experiments method, but test using interlayer shear
To be not yet suggested by detecting the method that the cutting performance of core sample is fetched to evaluate road surface aging conditions in road surface.
Summary of the invention
It is an object of that present invention to provide a kind of methods using interlayer shear experimental evaluation road surface aging conditions.The invention
Method is not only easy to operate, scientific and effective, can also obtain its interlayer by the exact test to live core sample shearing strength between layers
The attenuation of anti-shear performance, to accurately evaluate its road surface aging conditions.
To achieve the above object, the present invention is as follows using technical solution:
Using the method for interlayer shear experimental evaluation road surface aging conditions, comprising the following steps:
To live road surface core boring sampling, acquires different Years Of Services and not yet generate disease section and phase Years Of Service Required disease
The road surface core sample in evil section；
Different Years Of Services are not yet generated with the interlayer shear between the core sample progress upper layer in disease section and middle surface layer
Test makes its relevant anti-shear performance aging curve figure according to obtained data are tested；The relevant shear resistant
Energy aging curve figure includes shearing strength at intersection shearing stress figure, maximum strain figure and shear stress-strain curve figure；Shear strength is strong
Spend lower, maximum strain is bigger, load-deformation curve is more precipitous, and it is more serious to represent aging, on the contrary then aging is slight；
Interlayer shear-strength test between upper layer and middle surface layer is carried out to the road surface core sample in phase Years Of Service Required disease section,
Obtained data and chart are subjected to disease boundary condition treatment, define the disease boundary condition of the road section surface；The boundary
Condition is that average interlayer shear strength, average maximum strain and the shear stress-strain in phase Years Of Service Required disease section are bent
Line slope；Average interlayer shear strength is bigger, and average maximum strain is smaller, and load-deformation curve closer to S type, then get over by aging
Slightly, on the contrary then aging is serious；
Above-mentioned different Years Of Services are not yet generated into the relevant anti-shear performance aging curve figure in disease section and phase
The disease boundary condition in Years Of Service Required disease section carries out Conjoint Analysis, evaluates the aging conditions in whole section jointly.
According to the above scheme, it is the section on same highway to be measured that the different Years Of Services, which not yet generate disease section,
Temporal span was half a year to 1 year.
According to the above scheme, the road surface core sample in the phase Years Of Service Required disease section is the core of different location at disease section
Sample, including non-track, the core sample at track and road shoulder.
According to the above scheme, the interlayer shear-strength test the following steps are included:
1) core sample and mold are kept the temperature in the environment of 10 DEG C, soaking time is at least 5h；
2) the Marshall stability analyzer rate of climb is set for 50mm/min, and level-off；
3) it is placed on Marshall stability analyzer platform at once after taking out the mold of good heat insulation, while taking out a core
Sample is put into mold fixed；
4) Marshall Test is carried out according to Marshall Test code requirement, and is unloaded immediately after the test in this core sample
Sample, and mold is moved back into incubator and continues to keep the temperature；
5) machine is adjusted, data is recorded, carries out the experiment of next core sample.
Compared with prior art, the beneficial effects of the present invention are:
The present invention is based on interlayer experiments from the formation mechenism direction of disease, and the angle for cutting performance from shearing strength at intersection is satisfied the need
Face performance is evaluated.
It has been put forward for the first time using disease boundary condition and the method for aging curve Conjoint Analysis and has determined the old of road surface core sample
Change situation, and all analysis results are all defined according to the detection data of interlayer experiment, have compared other methods, it is stronger according to having
Applicability.
Other methods are compared, required time is shorter, and more efficient, specific aim is stronger.
Detailed description of the invention
Fig. 1: the core sample shearing strength at intersection shearing stress variation diagram under the difference military service time；
Fig. 2: the core sample interlayer maximum strain variation diagram under the difference military service time；
Fig. 3: the core sample interlayer maximum strain variation diagram under the difference military service time；
Fig. 4: the shear strength average value scatterplot comparison diagram of opsition dependent differentiation core sample；
Fig. 5: the maximum strain average value scatterplot comparison diagram of opsition dependent differentiation core sample；
Fig. 6: the 1 group of core sample shearing strength at intersection shearing stress-strain curve comparison diagram；
Fig. 7: the 2 group of core sample shearing strength at intersection shearing stress-strain curve comparison diagram；
Fig. 8: the 3 group of core sample shearing strength at intersection shearing stress-strain curve comparison diagram；
Fig. 9: the 4 group of core sample shearing strength at intersection shearing stress-strain curve comparison diagram；
Figure 10: the 5 group of core sample shearing strength at intersection shearing stress-strain curve comparison diagram；
Figure 11: the 6 group of core sample shearing strength at intersection shearing stress-strain curve comparison diagram；
Figure 12: different years core sample shearing strength at intersection shearing stress and boundary condition comparative analysis figure；
Figure 13: the sample interlayer maximum strain of different years core and boundary condition comparative analysis figure.
Specific embodiment
Following embodiment further illustrates technical solution of the present invention, but not as limiting the scope of the invention.
A kind of method using interlayer shear experimental evaluation road surface aging conditions of the present invention, the specific steps are as follows:
To live road surface core boring sampling, acquires different Years Of Services and not yet generate disease section and phase Years Of Service Required disease
The road surface core sample in evil section；
Different Years Of Services are not yet generated with the interlayer shear between the core sample progress upper layer in disease section and middle surface layer
Test makes its relevant anti-shear performance aging curve figure according to obtained data are tested；The relevant shear resistant
Energy aging curve figure includes shearing strength at intersection shearing stress figure, maximum strain figure and shear stress-strain curve figure；Shear strength is strong
Spend lower, maximum strain is bigger, load-deformation curve is more precipitous, and it is more serious to represent aging, on the contrary then aging is slight；
Interlayer shear-strength test between upper layer and middle surface layer is carried out to the road surface core sample in phase Years Of Service Required disease section,
Obtained data and chart are subjected to disease boundary condition treatment, define the disease boundary condition of the road section surface；The boundary
Condition is that average interlayer shear strength, average maximum strain and the shear stress-strain in phase Years Of Service Required disease section are bent
Line slope；Average interlayer shear strength is bigger, and average maximum strain is smaller, and load-deformation curve closer to S type, then get over by aging
Slightly, on the contrary then aging is serious；
Above-mentioned different Years Of Services are not yet generated into the relevant anti-shear performance aging curve figure in disease section and phase
The disease boundary condition in Years Of Service Required disease section carries out Conjoint Analysis, evaluates the aging conditions in whole section jointly.
Interlayer shear-strength test process of the present invention is as follows:
1) core sample and mold are kept the temperature in the environment of 10 DEG C, soaking time is at least 5h；
2) the Marshall stability analyzer rate of climb is set for 50mm/min, and level-off；
3) it is placed on Marshall stability analyzer platform at once after taking out the mold of good heat insulation, while taking out a core
Sample is put into mold fixed；
4) Marshall Test is carried out according to Marshall Test code requirement, and is unloaded immediately after the test in this core sample
Sample, and mold is moved back into incubator and continues to keep the temperature；
5) machine is adjusted, data is recorded, carries out the experiment of next core sample.
To live road surface core boring sampling, fetches its different Years Of Service and not yet generate disease section and identical Years Of Service
The road surface core sample of disease section different location, specific such as table 1 and table 2.
Table 1 distinguishes core sample table by the different military service times
| Number | The milling time | It is on active service the time | Core sample number |
| 1 | 2011 | 4 | 8 |
| 2 | 2012 | 3 | 8 |
| 3 | 2013 | 2 | 8 |
| 4 | 2014 | 1 | 8 |
| 5 | 2015 | 0 | 8 |
Table 2 distinguishes core sample table by the different location of disease
The core sample for not yet generating disease section to the different Years Of Services fetched carries out interlayer shear-strength test, according to test institute
Obtained related data makes the aging curve figure of its relevant anti-shear performance, as shown in Figure 1, Figure 2, Figure 3 shows.
Interlayer shear experiment is carried out to the core sample at the phase Years Of Service Required different diseases fetched, by obtained data and
Chart carries out disease boundary condition treatment, define boundary condition such as Fig. 4, Fig. 5 of the road section surface disease, Fig. 6, Fig. 7, Fig. 8, Fig. 9,
Shown in Figure 10, Figure 11.
First analyze aging curve, according to the shear strength of Fig. 1, Fig. 2 variation diagram core sample and maximum strain with
The increase in time of being on active service gradually becomes smaller, that is, suffer from a degree of decaying, this surface shear strength of road surface interlayer and
Relationship between maximum strain and the degree of aging on road surface.
According to Fig. 3, with the increase in time of being on active service, slope of a curve variation degree is gradually decreased, this surface roadways it is soft
Property be on active service the time passage gradually lose.Simultaneously as can be seen from FIG. 4, from scatter plot, we can see that at track
The shear strength average value of core sample is minimum, this material of explanation herein is weathered；Disease boundary condition is defined again, passes through meter
Calculate, in this research section, the average interlayer shear strength of non-track, track and road shoulder for 2508MPa, 2446MPa and
2423MPa, this is boundary condition one.
According to Fig. 5, since maximum strain can also be used as Rule of judgment, maximum strain is demonstrated by material in shear history
Toughness, maximum strain is bigger, and material property is better, and non-rigid closer to semi-rigid material, and the core sample at track is most
Big strain is less than the core sample at non-track and at road shoulder, this maximum strain for also demonstrating disease road surface is also boundary condition, is obtained
To boundary condition two.
According to the shearing strength at intersection of 1-6 group core sample shown in Fig. 6,7,8,9,10,11 shearing stress-strain curve comparison diagram, due to drip
Green road surface is a kind of semirigid material, has certain flexibility, is embodied onto the load-deformation curve of interlayer shear, curve is answered
Serpentine or reversed S-shape is presented, and straight line is generally presented in shear stress-strain curve of rigid material.The vehicle in six groups of curve graphs
Straight line is often presented in curve at rut, this shows at track, and the degree of aging of this asphalt material is very high, rather than track and road
The case where at shoulder, is then slightly good, and determining whether semirigid property is lost is also one of boundary, obtains boundary condition three.
Finally combine aging curve and boundary condition comparative analysis, according to Figure 12 and Figure 13, the core sample of military service 4 years
Shearing strength at intersection cut in performance all with disease at core sample it is close.Comprehensive shear strength, maximum stress and load-deformation curve are oblique
Rate changes three aspects, compares the boundary condition defined in this research, core at the shear property and disease of the core sample being on active service 4 years
Sample is close, and road surface aging where this illustrates the core sample being on active service 4 years is serious, has the risk for track disease occur, also illustrates that its is residual
The remaining service life is shorter, and other be on active service the times core sample according to be on active service the time increase, performance is declined, but is still had certain
Residual life can still be on active service for a long time in the case where keeping status constant.
The above is only a preferred embodiment of the present invention, it is noted that come for those of ordinary skill in the art
It says, without departing from the concept of the premise of the invention, several modifications and variations can also be made, these belong to of the invention
Protection scope.
Claims (4)
1. using the method for interlayer shear experimental evaluation road surface aging conditions, it is characterised in that the following steps are included:
To live road surface core boring sampling, acquires different Years Of Services and not yet generate disease section and phase Years Of Service Required disease road
The road surface core sample of section；
Different Years Of Services are not yet generated with the interlayer shear-strength test between the core sample progress upper layer in disease section and middle surface layer,
Its relevant anti-shear performance aging curve figure is made according to obtained data are tested；The relevant anti-shear performance aging
Curve graph includes shearing strength at intersection shearing stress figure, maximum strain figure and shear stress-strain curve figure；Shear strength intensity is got over
Low, maximum strain is bigger, load-deformation curve is more precipitous, and it is more serious to represent aging, on the contrary then aging is slight；
Interlayer shear-strength test between upper layer and middle surface layer is carried out to the road surface core sample in phase Years Of Service Required disease section, will
The data and chart arrived carry out disease boundary condition treatment, define the disease boundary condition of the road section surface；The boundary condition
It is oblique for the average interlayer shear strength in phase Years Of Service Required disease section, average maximum strain and shear stress-strain curve
Rate；Average interlayer shear strength is bigger, and average maximum strain is smaller, and then aging is lighter closer to S type for load-deformation curve
It is micro-, it is on the contrary then aging is serious；
Above-mentioned different Years Of Services are not yet generated into the relevant anti-shear performance aging curve figure in disease section and corresponding clothes
The disease boundary condition for using as a servant time limit disease section carries out Conjoint Analysis, evaluates the aging conditions in whole section jointly.
2. as described in claim 1 use interlayer shear experimental evaluation road surface aging conditions method, it is characterised in that it is described not
It is the section on same highway to be measured that disease section is not yet generated with Years Of Service, and temporal span was half a year to 1 year.
3. using the method for interlayer shear experimental evaluation road surface aging conditions as described in claim 1, it is characterised in that the phase
The road surface core sample in Years Of Service Required disease section is the core sample of different location at disease section, including non-track, track and road shoulder
The core sample at place.
4. using the method for interlayer shear experimental evaluation road surface aging conditions as described in claim 1, it is characterised in that the layer
Between shearing test the following steps are included:
1) core sample and mold are kept the temperature in the environment of 10 DEG C, soaking time is at least 5h；
2) the Marshall stability analyzer rate of climb is set for 50mm/min, and level-off；
3) it is placed on Marshall stability analyzer platform at once after taking out the mold of good heat insulation, while taking out a core sample,
It is put into mold fixed；
4) Marshall Test is carried out according to Marshall Test code requirement, and carries out unloading sample after the test immediately in this core sample,
And mold is moved back into incubator and continues to keep the temperature；
5) machine is adjusted, data is recorded, carries out the experiment of next core sample.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710031120.1A CN106680113B (en) | 2017-01-17 | 2017-01-17 | Using the method for interlayer shear experimental evaluation road surface aging conditions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710031120.1A CN106680113B (en) | 2017-01-17 | 2017-01-17 | Using the method for interlayer shear experimental evaluation road surface aging conditions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106680113A CN106680113A (en) | 2017-05-17 |
| CN106680113B true CN106680113B (en) | 2019-03-15 |
Family
ID=58859835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710031120.1A Active CN106680113B (en) | 2017-01-17 | 2017-01-17 | Using the method for interlayer shear experimental evaluation road surface aging conditions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106680113B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108487018A (en) * | 2018-03-28 | 2018-09-04 | 西安电子科技大学 | Asphalt road surface by microwave heating restorative procedure based on surface layer preheating |
| CN109580396A (en) * | 2018-11-28 | 2019-04-05 | 南京林业大学 | A kind of test method of bituminous pavement superficial layer load fatigue damage degree |
| CN110008535B (en) * | 2019-03-18 | 2023-06-30 | 山西省交通科技研发有限公司 | Method for determining water stability index of newly-built asphalt pavement |
| CN110823717B (en) * | 2019-11-01 | 2022-04-19 | 广州大学 | Semi-flexible pavement shear strength testing device and testing method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102297811A (en) * | 2011-05-27 | 2011-12-28 | 长安大学 | Method for detecting inter-laminar shear stress and strain of asphalt road |
| CN105651977A (en) * | 2015-08-28 | 2016-06-08 | 武汉理工大学 | Simulation Method of Asphalt Pavement Aging |
-
2017
- 2017-01-17 CN CN201710031120.1A patent/CN106680113B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102297811A (en) * | 2011-05-27 | 2011-12-28 | 长安大学 | Method for detecting inter-laminar shear stress and strain of asphalt road |
| CN105651977A (en) * | 2015-08-28 | 2016-06-08 | 武汉理工大学 | Simulation Method of Asphalt Pavement Aging |
Non-Patent Citations (3)
| Title |
|---|
| Evolution and locational variation of asphalt binder aging in long-life hot-mix asphalt pavements;P.E. Yuhong Wang等;《Construction and Building Materials》;20141231;第172-182页 |
| 基于层间剪切的沥青路面粘层力学性能研究;朱俊等;《武汉理工大学学报（交通科学与工程版）》;20130831;第775-779页 |
| 沥青路面公路技术状况评价研究;万九鸣等;《武汉理工大学学报（交通科学与工程版）》;20151231;第1269-1273页 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106680113A (en) | 2017-05-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106680113B (en) | Using the method for interlayer shear experimental evaluation road surface aging conditions | |
| Villeneuve et al. | Determination of the damage in concrete affected by ASR–the damage rating index (DRI) | |
| Li et al. | Damage analysis of CFRP-confined circular concrete-filled steel tubular columns by acoustic emission techniques | |
| Aliha et al. | Experimental study on modeI fracture toughness of different asphalt mixtures | |
| CN109472107A (en) | A method for establishing a mathematical model of the damage rate evolution of recycled concrete under freezing and thawing | |
| CN110078417A (en) | A kind of anti-rutting asphalt mixture mixing proportion design method | |
| CN103995036A (en) | Method for monitoring cement-based material crack by using electrochemical impedance spectroscopy in real time | |
| Islam et al. | Effects of large freeze-thaw cycles on stiffness and tensile strength of asphalt concrete | |
| CN108801905B (en) | A method for evaluating the effect of semi-rigid base asphalt pavement penetration oil construction technology | |
| Fakhri et al. | Impact of loading frequency on the fatigue behavior of SBS modified asphalt mixtures | |
| CN114113552A (en) | A Quantitative Analysis Method of Asphalt Master Curve | |
| CN113433304A (en) | Method for testing and evaluating self-healing performance of asphalt | |
| CN111551457A (en) | A method for testing and evaluating the healing properties of asphalt | |
| CN105067452B (en) | A kind of method for obtaining asphalt material physical hardening Performance Evaluating Indexes | |
| Belaribi et al. | The relationship between the compressive strength and ultrasonic pulse velocity concrete with fibers exposed to high temperatures | |
| Martino et al. | Determining ground penetrating radar amplitude thresholds for the corrosion state of reinforced concrete bridge decks | |
| CN113505966A (en) | Method for evaluating ecological environment restoration effect of rock slope regeneration planting complexing agent | |
| CN109305776A (en) | A kind of high-performance asphalt mixture and preparation method thereof | |
| Nataadmadja et al. | Evaluation of moisture susceptibility of hot mix asphalt | |
| CN104805747B (en) | By the bituminous paving upper layer mixture mixing proportion design method of topology requirement | |
| Apeagyei et al. | Moisture damage evaluation of asphalt mixtures using AASHTO T283 and DC (T) fracture test | |
| López-Montero et al. | Obtaining the fatigue laws of bituminous mixtures from a strain sweep test: Effect of temperature and aging | |
| CN115479968A (en) | Freeze-thaw damage test and evaluation method for cement stabilized macadam material | |
| CN106644786B (en) | A method of evaluation asphaltmastic fatigue behaviour | |
| Jones et al. | Reflective cracking study: Summary report |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |