CN106198941A - A kind of method evaluating heat filling class base joint grouting glue high-temperature behavior - Google Patents
A kind of method evaluating heat filling class base joint grouting glue high-temperature behavior Download PDFInfo
- Publication number
- CN106198941A CN106198941A CN201610437453.XA CN201610437453A CN106198941A CN 106198941 A CN106198941 A CN 106198941A CN 201610437453 A CN201610437453 A CN 201610437453A CN 106198941 A CN106198941 A CN 106198941A
- Authority
- CN
- China
- Prior art keywords
- base joint
- joint grouting
- grouting glue
- temperature behavior
- test
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/42—Road-making materials
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Road Repair (AREA)
Abstract
A kind of method evaluating heat filling class base joint grouting glue high-temperature behavior, relates to a kind of method evaluating heat filling class base joint grouting glue performance.The present invention is the technical problem that can not reflect the high-temperature behavior under base joint grouting glue true in-path surface state in order to solve current base joint grouting glue high-temperature behavior evaluation methodology well.The present invention: one, road bed data survey；Two, rut plate is prepared；Three, the cementation of fissures；Four, then wheel tracking test compares deformation.The method have the advantages that the new method providing a kind of effectively evaluating base joint grouting glue high-temperature behavior, on the basis of existing base joint grouting glue high-temperature behavior is evaluated, utilize the wheel tracking test can be with the practical situation of simulated field, evaluate the viscous wheel of base joint grouting glue further and roll out situation, making up the deficiency of existing test；Equipment and experimental enviroment easily realize, and utilize wheel tracking test to evaluate the method Appropriate application existing equipment of laboratory of base joint grouting glue high-temperature behavior, it is not necessary to extra develop new equipment；Providing base joint grouting glue deformation length L and the evaluation index of base joint grouting glue two base joint grouting glue high-temperature behaviors of deformation area S, result of the test is clear.The present invention is applied to field of traffic.
Description
Technical field
The present invention relates to a kind of method evaluating heat filling class base joint grouting glue high-temperature behavior.
Background technology
Crack is a kind of relatively conventional pavement disease, and the method processing pavement crack disease at present is usually the cementation of fissures, heat
Fill class base joint grouting glue extensively to be applied by maintenance department as a kind of common gap-grouting material.Heat fills class base joint grouting glue (the hereinafter referred to as cementation of fissures
Glue) use modified pitch macromolecule polymer material to make, good base joint grouting glue material should have good high-temperature behavior.The cementation of fissures
Glue high-temperature stability refers to that it is stablized under the high temperature conditions, does not trickles, does not glues wheel, mainly shows as the work repeatedly at wheel load
Will not be taken out of by wheel under with.Although the use of base joint grouting glue is relatively broad, but the examination of the evaluation for base joint grouting glue high-temperature behavior
Proved recipe method need the most perfect.At present, the domestic evaluation methodology for base joint grouting glue high-temperature behavior has awl penetration test, softening
Experimental tests, slamp value test, but all can not reflect the high-temperature behavior under base joint grouting glue true in-path surface state well.
Summary of the invention
The present invention is to fill class base joint grouting glue high-temperature behavior evaluation methodology and can not reflect the cementation of fissures well to solve current heat
The technical problem of the high-temperature behavior under glue true in-path surface state, and provide a kind of heat of evaluating to fill the side of class base joint grouting glue high-temperature behavior
Method.
A kind of method evaluating heat filling class base joint grouting glue high-temperature behavior of the present invention is carried out according to the following steps:
One, road bed data survey: investigate and obtain the basic data of actual bituminous paving；
Two, rut plate is prepared: prepare basic data according to the basic data of the actual bituminous paving of step one acquisition complete
Identical asphalt, is then placed in mould, uses the mode of reserved groove, uses rolling method to prepare one a size of
The cuboid rut plate test specimen of 300mm × 300mm × 50mm, and the surface of an a size of 300mm × 300mm wherein
Centerline has a cuboid groove to simulate the crack of bituminous paving, and a length of 300mm of cuboid groove, width is with deep
Degree is identical with the width that the cementation of fissures of actual bituminous paving is slotted and the degree of depth, cuboid groove centrage alongst and length
The centrage of the rut plate surface of test piece at cube groove place overlaps；The cementation of fissures groove width of described actual bituminous paving is
10mm～20mm, the degree of depth is 10mm～20mm；
Three, the cementation of fissures: with base joint grouting glue cementation of fissures in the cuboid groove described in step 2, it is ensured that the base joint grouting glue after cooling exceeds
Rut plate surface of test piece 2mm at cuboid groove place～3mm, the base joint grouting glue after cooling is at the rut plate at cuboid groove place
Surface of test piece is rectangle and the centrage with cuboid groove overlaps, and the width of the base joint grouting glue after cooling is 80mm；
Four, wheel tracking test: rut plate test specimen complete for the cementation of fissures is placed in wheel rutting test machine specimen stage, the temperature of testing machine is set
It it is 60 DEG C, it is ensured that the direction that wheel is advanced is vertical with cuboid groove long side direction and center line on the long limit of cuboid groove
Place, wheel tracking test start after 5min, 10min, 20min, 30min and 45min observe base joint grouting glue deformation, if certain
During timing node, base joint grouting glue has occurred and that damage inactivation, i.e. stops wheel tracking test, and this time is recorded as the out-of-service time, during inefficacy
Between high-temperature behavior the longest, base joint grouting glue the best；If there is no damage inactivation at 45min base joint grouting glue, then calculate the examination of base joint grouting glue rut
Base joint grouting glue deformation length L tested or base joint grouting glue deformation area S, the parallel test doing 3～5 groups is averagedWithDeformation lengthThe high-temperature behavior of the least then base joint grouting glue is the best, deformation areaThe least then high-temperature behavior is the best；
Wheel tracking test start after 45min, the exterior lateral area on two the long limits of base joint grouting glue before not carrying out wheel tracking test
In, base joint grouting glue after deformation distance do not carry out farthest two point on two the long limits of base joint grouting glue before wheel tracking test with apart from it relatively
Near do not carry out wheel tracking test before the distance on two long limits of base joint grouting glue be respectively LAAnd LB, base joint grouting glue deformation length L is LAAnd LB
In maximum, i.e. L=max (LA,LB)；
Wheel tracking test start after 45min, the base joint grouting glue before not carrying out wheel tracking test of the base joint grouting glue after deformation two
The area of the exterior lateral area on long limit is respectively SAAnd SB, base joint grouting glue deformation area S is SAAnd SBSum.
The method of the present invention can be used to compare the high-temperature behavior of the most different base joint grouting glues.
In step 4, base joint grouting glue generation damage inactivation refers to base joint grouting glue and all departs from cuboid groove.
The method have the advantages that
(1) the invention provides the new method of a kind of effectively evaluating base joint grouting glue high-temperature behavior, high at existing base joint grouting glue
On the basis of temperature performance evaluation, utilize wheel tracking test that the viscous wheel of base joint grouting glue with the practical situation of simulated field, can be evaluated further
And roll out situation, make up the deficiency of existing test；
(2) equipment and the experimental enviroment of the present invention easily realizes, and utilizes wheel tracking test to evaluate the side of base joint grouting glue high-temperature behavior
The method Appropriate application existing equipment of laboratory, it is not necessary to extra develop new equipment；
(3) present invention tests according to the rut plate after wheel tracking test and provides base joint grouting glue deformation length L and base joint grouting glue deformation
The evaluation index of two base joint grouting glue high-temperature behaviors of area S, result of the test is clear, thus effectively instructs the selection of base joint grouting glue.
Accompanying drawing explanation
Fig. 1 is the top view of the mould in step 2 of the present invention, and 1 is packing area, and 2 is projection；
Fig. 2 is the schematic diagram of the rut plate test specimen in the present invention in step 2, and 3 is cuboid groove；
Fig. 3 is the schematic diagram of the rut plate test specimen in step 3 of the present invention after the cementation of fissures, and 4 is base joint grouting glue, and 5 try for rut plate
Part；
Fig. 4 is the schematic diagram carrying out wheel tracking test in step 4 of the present invention, and 4 is base joint grouting glue, and 5 is rut plate test specimen, and 6 is wheel
Tire；
Fig. 5 is to take after step 4 wheel tracking test of the present invention terminates to measure base joint grouting glue deformation length L to test base joint grouting glue height
The schematic diagram of rut plate test specimen during warm nature energy, 4 is the base joint grouting glue region before not carrying out wheel tracking test, and 5 is rut plate test specimen, 7
For the base joint grouting glue region after deformation；
Fig. 6 is to take after step 4 wheel tracking test of the present invention terminates to measure base joint grouting glue deformation area S to test base joint grouting glue height
The schematic diagram of rut plate test specimen during warm nature energy, 4 is the base joint grouting glue region before not carrying out wheel tracking test, and 5 is rut plate test specimen, 7
For the base joint grouting glue region after deformation；
In figure, the unit of all sizes is mm.
Detailed description of the invention
Detailed description of the invention one: combine Fig. 1-6, present embodiment is that a kind of heat of evaluating fills the side of class base joint grouting glue high-temperature behavior
Method, is carried out the most according to the following steps:
One, road bed data survey: investigate and obtain the basic data of actual bituminous paving；
Two, rut plate is prepared: prepare basic data according to the basic data of the actual bituminous paving of step one acquisition complete
Identical asphalt, is then placed in mould, uses the mode of reserved groove, uses rolling method to prepare one a size of
The cuboid rut plate test specimen of 300mm × 300mm × 50mm, and the surface of an a size of 300mm × 300mm wherein
Centerline has a cuboid groove to simulate the crack of bituminous paving, and a length of 300mm of cuboid groove, width is with deep
Degree is identical with the width that the cementation of fissures of actual bituminous paving is slotted and the degree of depth, cuboid groove centrage alongst and length
The centrage of the rut plate surface of test piece at cube groove place overlaps；The cementation of fissures groove width of described actual bituminous paving is
10mm～20mm, the degree of depth is 10mm～20mm；
Three, the cementation of fissures: with base joint grouting glue cementation of fissures in the cuboid groove described in step 2, it is ensured that the base joint grouting glue after cooling exceeds
Rut plate surface of test piece 2mm at cuboid groove place～3mm, the base joint grouting glue after cooling is at the rut plate at cuboid groove place
Surface of test piece is rectangle and the centrage with cuboid groove overlaps, and the width of the base joint grouting glue after cooling is 80mm；
Four, wheel tracking test: rut plate test specimen complete for the cementation of fissures is placed in wheel rutting test machine specimen stage, the temperature of testing machine is set
It it is 60 DEG C, it is ensured that the direction that wheel is advanced is vertical with cuboid groove long side direction and center line on the long limit of cuboid groove
Place, wheel tracking test start after 5min, 10min, 20min, 30min and 45min observe base joint grouting glue deformation, if certain
During timing node, base joint grouting glue has occurred and that damage inactivation, i.e. stops wheel tracking test, and this time is recorded as the out-of-service time, during inefficacy
Between high-temperature behavior the longest, base joint grouting glue the best；If there is no damage inactivation at 45min base joint grouting glue, then calculate the examination of base joint grouting glue rut
Base joint grouting glue deformation length L tested or base joint grouting glue deformation area S, the parallel test doing 3～5 groups is averagedWithDeformation lengthThe high-temperature behavior of the least then base joint grouting glue is the best, deformation areaThe least then high-temperature behavior is the best；
Wheel tracking test start after 45min, the exterior lateral area on two the long limits of base joint grouting glue before not carrying out wheel tracking test
In, base joint grouting glue after deformation distance do not carry out farthest two point on two the long limits of base joint grouting glue before wheel tracking test with apart from it relatively
Near do not carry out wheel tracking test before the distance on two long limits of base joint grouting glue be respectively LAAnd LB, base joint grouting glue deformation length L is LAAnd LB
In maximum, i.e. L=max (LA,LB)；
Wheel tracking test start after 45min, the base joint grouting glue before not carrying out wheel tracking test of the base joint grouting glue after deformation two
The area of the exterior lateral area on long limit is respectively SAAnd SB, base joint grouting glue deformation area S is SAAnd SBSum.
Detailed description of the invention two: the present embodiment difference from detailed description of the invention one is: Colophonium described in step one
The basic data on road surface is the kind gathered materials in bituminous pavement top mix type, asphalt mixture gradation, compound and mixes
Close the label of material Colophonium.Other are identical with detailed description of the invention one.
Detailed description of the invention three: the present embodiment difference from detailed description of the invention one is: the mould described in step 2
Tool is the cuboid of a hollow uncovered, and the degree of depth of boring is 50mm, and length and width is 300mm, at the internal end
One projection is set in the middle of face, a length of 300mm of projection, the width of projection and the most respectively with the cementation of fissures of actual bituminous paving
The width of fluting is identical with the degree of depth.Other are identical with detailed description of the invention one.
Detailed description of the invention four: the present embodiment difference from detailed description of the invention one or two is: entering in step 4
During row wheel tracking test, the round rolling speed of wheel is 42 times/min.Other are identical with detailed description of the invention one or two.
Detailed description of the invention five: the present embodiment difference from detailed description of the invention one to four is: described in step 4
The measuring method of base joint grouting glue deformation area S be: the base joint grouting glue deformed region after wheel tracking test completes covers transparent rice lattice
Paper, with the outline of pen base joint grouting glue after transparent rice ruled paper depicts deformation, calculates base joint grouting glue deformation from rice ruled paper
Area S or employing are taken pictures and are then utilized CAD to be labeled obtaining base joint grouting glue deformation area S.Other are with detailed description of the invention one
Identical to four.
Claims (5)
1. evaluate the method that heat fills class base joint grouting glue high-temperature behavior for one kind, it is characterised in that evaluate heat and fill class base joint grouting glue high-temperature behavior
Method is carried out according to the following steps:
One, road bed data survey: investigate and obtain the basic data of actual bituminous paving；
Two, rut plate is prepared: prepare identical asphalt according to the basic data of the actual bituminous paving of step one acquisition,
It is then placed in mould, uses reserved fluted manner, use rolling method to prepare an a size of 300mm × 300mm × 50mm's
Cuboid rut plate test specimen, and the centerline on the surface of an a size of 300mm × 300mm wherein has a cuboid
Groove is to simulate the filling of the crack of bituminous paving, a length of 300mm of cuboid groove, width and the degree of depth and actual bituminous paving
The width of seam fluting is identical with the degree of depth, cuboid groove centrage alongst and the rut plate at cuboid groove place
The centrage of surface of test piece overlaps；The cementation of fissures groove width of described actual bituminous paving is 10mm～20mm, and the degree of depth is 10mm
～20mm；
Three, the cementation of fissures: with base joint grouting glue cementation of fissures in the cuboid groove described in step 2, it is ensured that the base joint grouting glue after cooling exceeds rectangular
Rut plate surface of test piece 2mm at body groove place～3mm, the base joint grouting glue after cooling is at the rut plate test specimen at cuboid groove place
Surface is rectangle and the centrage with cuboid groove overlaps, and the width of the base joint grouting glue after cooling is 80mm；
Four, wheel tracking test: rut plate test specimen complete for the cementation of fissures is placed in wheel rutting test machine specimen stage, the temperature arranging testing machine is 60
DEG C, it is ensured that the direction that wheel is advanced is vertical with cuboid groove long side direction and midline on the long limit of cuboid groove, car
Observe the deformation of base joint grouting glue at 5min, 10min, 20min, 30min and 45min after rut on-test, if certain time
During node, base joint grouting glue has occurred and that damage inactivation, i.e. stops wheel tracking test, and this time is recorded as the out-of-service time, and the out-of-service time is more
High-temperature behavior long, base joint grouting glue is the best；If there is no damage inactivation at 45min base joint grouting glue, then calculate base joint grouting glue wheel tracking test
Base joint grouting glue deformation length L or base joint grouting glue deformation area S, the parallel test doing 3～5 groups is averagedWithDeformation lengthMore
The high-temperature behavior of little then base joint grouting glue is the best, deformation areaThe least then high-temperature behavior is the best；
Wheel tracking test start after 45min, in the exterior lateral area on two the long limits of base joint grouting glue before not carrying out wheel tracking test, become
Farthest two point that base joint grouting glue distance after shape does not carries out two the long limits of base joint grouting glue before wheel tracking test is nearer with apart from it
The distance not carrying out two the long limits of base joint grouting glue before wheel tracking test is respectively LAAnd LB, base joint grouting glue deformation length L is LAAnd LBIn
Maximum, i.e. L=max (LA,LB)；
Wheel tracking test start after 45min, two long limits of the base joint grouting glue before not carrying out wheel tracking test of the base joint grouting glue after deformation
The area of exterior lateral area be respectively SAAnd SB, base joint grouting glue deformation area S is SAAnd SBSum.
A kind of method evaluating heat filling class base joint grouting glue high-temperature behavior the most according to claim 1, it is characterised in that step one
Described in the basic data of bituminous paving be that bituminous pavement top mix type, asphalt mixture gradation, compound gather materials
Kind and the label of Colophonium.
A kind of method evaluating heat filling class base joint grouting glue high-temperature behavior the most according to claim 1, it is characterised in that step 2
Described in the cuboid that mould is a hollow uncovered, the degree of depth of boring is 50mm, and length and width is 300mm,
In the middle of internal bottom surface, a projection is set, a length of 300mm of projection, the width of projection and the most respectively with actual Colophonium
The width of the cementation of fissures fluting on road surface is identical with the degree of depth.
A kind of method evaluating heat filling class base joint grouting glue high-temperature behavior the most according to claim 1, it is characterised in that step 4
In when carrying out wheel tracking test the round rolling speed of wheel be 42 times/min.
A kind of method evaluating heat filling class base joint grouting glue high-temperature behavior the most according to claim 1, it is characterised in that step 4
Described in the measuring method of base joint grouting glue deformation area S be: the base joint grouting glue deformed region after wheel tracking test completes covers transparent
Rice ruled paper, with the outline of pen base joint grouting glue after transparent rice ruled paper depicts deformation, from rice ruled paper, calculate the cementation of fissures
Glue deformation area S or employing are taken pictures and are then utilized CAD to be labeled obtaining base joint grouting glue deformation area S.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610437453.XA CN106198941B (en) | 2016-06-17 | 2016-06-17 | A kind of method evaluated heat and fill class base joint grouting glue high-temperature behavior |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610437453.XA CN106198941B (en) | 2016-06-17 | 2016-06-17 | A kind of method evaluated heat and fill class base joint grouting glue high-temperature behavior |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106198941A true CN106198941A (en) | 2016-12-07 |
| CN106198941B CN106198941B (en) | 2018-01-30 |
Family
ID=57460678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610437453.XA Active CN106198941B (en) | 2016-06-17 | 2016-06-17 | A kind of method evaluated heat and fill class base joint grouting glue high-temperature behavior |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106198941B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101178340A (en) * | 2007-11-21 | 2008-05-14 | 长安大学 | Asphalt pavement reflection crack propagation analog experiment device |
| CN102135481A (en) * | 2011-01-10 | 2011-07-27 | 东南大学 | Method for testing rutting-resistant performance of mixture in bituminous pavement |
| CN102252915A (en) * | 2011-06-09 | 2011-11-23 | 北京科路泰技术有限公司 | Method for performing low temperature performance test on joint strip by using pull test machine |
| CN103278406A (en) * | 2013-06-14 | 2013-09-04 | 哈尔滨工业大学 | Testing device and testing method for evaluating rutting resistance of asphalt mixture |
| CN105259339A (en) * | 2015-11-17 | 2016-01-20 | 江苏中路工程技术研究院有限公司 | Testing method for texture depth anti-attenuation capacity of paving asphalt |
| CN105675852A (en) * | 2014-08-26 | 2016-06-15 | 交通运输部公路科学研究所 | Method for evaluating road surface driving performance of crack adhesive |
-
2016
- 2016-06-17 CN CN201610437453.XA patent/CN106198941B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101178340A (en) * | 2007-11-21 | 2008-05-14 | 长安大学 | Asphalt pavement reflection crack propagation analog experiment device |
| CN102135481A (en) * | 2011-01-10 | 2011-07-27 | 东南大学 | Method for testing rutting-resistant performance of mixture in bituminous pavement |
| CN102252915A (en) * | 2011-06-09 | 2011-11-23 | 北京科路泰技术有限公司 | Method for performing low temperature performance test on joint strip by using pull test machine |
| CN103278406A (en) * | 2013-06-14 | 2013-09-04 | 哈尔滨工业大学 | Testing device and testing method for evaluating rutting resistance of asphalt mixture |
| CN105675852A (en) * | 2014-08-26 | 2016-06-15 | 交通运输部公路科学研究所 | Method for evaluating road surface driving performance of crack adhesive |
| CN105259339A (en) * | 2015-11-17 | 2016-01-20 | 江苏中路工程技术研究院有限公司 | Testing method for texture depth anti-attenuation capacity of paving asphalt |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106198941B (en) | 2018-01-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107907430B (en) | Test device and test method for testing shearing performance of asphalt mixture | |
| CN104316416B (en) | A kind of asphalt semicircle loads direct shear test device and test method thereof | |
| CN106415194A (en) | Road pavement damage investigation and analysis system, and road pavement damage investigation and analysis method | |
| CN103245542A (en) | Test method of compound cracking of asphalt mixture | |
| CN106644933A (en) | Testing method of interlayer bonding power of asphalt pavement | |
| CN209368648U (en) | The test of cement stabilizing RAP mixture Base Asphalt Pavement reflection crack and evaluating apparatus | |
| CN102494962B (en) | Circulating single shaft dynamic load testing device with function of simulating tire load | |
| CN104749095B (en) | Pavement skid resistance condition evaluation method based on tire Yu road surface contact characteristic | |
| CN101571466B (en) | Indoor small size load testing method for asphalt mixture | |
| CN104792822A (en) | Local thermal regenerative heating effect indoor test simulation method for asphalt pavement | |
| CN102519812A (en) | Method for evaluating high-temperature stability of asphalt pavement structure or asphalt mixture | |
| CN107831070A (en) | A kind of compression shear test device of composite pavement structure intensity and fatigue | |
| 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 | |
| CN106198941A (en) | A kind of method evaluating heat filling class base joint grouting glue high-temperature behavior | |
| CN110826807B (en) | Method for rapidly predicting dynamic resilience modulus of roadbed filler in seasonal frozen region | |
| CN207380235U (en) | A kind of pavement structure for Ground Penetrating Radar | |
| CN206906141U (en) | The test device of bituminous paving interlayer shearing strength | |
| CN206292149U (en) | A kind of test fixture of bituminous paving interlayer cohesive force | |
| CN103278406B (en) | Evaluate test unit and the test method thereof of asphalt mixture anti-rutting performance | |
| Park | Investigation of primary causes of load-related cracking in asphalt concrete pavement in North Carolina | |
| CN107064203A (en) | A kind of asphalt pavement crack hot type base joint grouting glue selecting method | |
| CN203337490U (en) | Balance weight asphalt wheel tracking tester | |
| CN205665185U (en) | Bituminous mixture line shrinkage coefficient testing arrangement | |
| Titi et al. | Influence of aggregate base layer variability on pavement performance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |