CN106644933A - Testing method of interlayer bonding power of asphalt pavement - Google Patents
Testing method of interlayer bonding power of asphalt pavement Download PDFInfo
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- CN106644933A CN106644933A CN201611158943.2A CN201611158943A CN106644933A CN 106644933 A CN106644933 A CN 106644933A CN 201611158943 A CN201611158943 A CN 201611158943A CN 106644933 A CN106644933 A CN 106644933A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/04—Measuring adhesive force between materials, e.g. of sealing tape, of coating
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Abstract
The invention relates to a testing method of interlayer bonding power of an asphalt pavement. The testing method comprises the following steps: preparing a test piece: bonding a lower-layer cement concrete test piece with upper-layer asphalt concrete through bonding layer oil; (2) mounting the test piece: putting a test piece to be tested into a lower clamp and slowly lowering a pressing head; continually lowering the pressing head so as to tightly stick an upper mold and the lower mold; and tightly fixing the upper and lower clamps with the test piece respectively; (3) starting to test: starting a pressure machine and adjusting the speed; starting to carry out a pulling test to enable a force value and displacement on a display device to be changed; and when the test piece is pulled to be opened and the force value reaching a peak valve, recording. According to the testing method of the interlayer bonding power of the asphalt pavement, a vertical load of the asphalt pavement can be really simulated and bonding power parameters are obtained; and evaluation of bonding performances of an interlayer material is convenient to realize.
Description
Technical field
The present invention relates to interlayer adhesion determines test fixture, particularly a kind of test side of bituminous paving interlayer cohesive force
Method.
Background technology
The existing bituminous pavement design of China is, based on elastic layer system theory, to answer in the stress for calculating analysis pavement structure
When becoming response, it is assumed that each layer of bituminous paving is continuous elastomeric, affect yet with factors such as design of material, construction and environment,
Bituminous paving interlayer is difficult to completely continuous.Under traffic and environmental factorss effect, usually because interlaminar bonding is not enough, it is difficult to
Resist the shearing force of wheel load generation and interlaminar failure occurs, cause road surface passage, rut occur and gather around the multiple diseases such as bag.Cause
This, improves and strengthens the caking property between asphalt surface course, for interlayer materials shearing strength is improved, prevents such disease to have weight
Want meaning.
But, the evaluation methodology of bituminous paving interlayer material adhesive property is not clearly advised in current Chinese code of practice
It is fixed, be more the absence of the adhesive property of the materials such as corresponding method of testing, modified pitch and emulsified asphalt only by when En Gela glue
Spend with normal viscosity to evaluate.Numerous studies data shows that bituminous paving interlayer is mainly subject to compressive stress, drawing stress to answer with cutting
The effect of power, and drawing stress and shear stress are unfavorable for the cementation of interlayer, and shear stress is cause interlaminar failure main
Shear stress under one of factor, particularly high temperature.Therefore, under the adhesive property of interlayer materials can be by determining its different temperatures
Bonding shear strength evaluated.For this purpose, the multi-functional boxshear apparatus that author is voluntarily developed using seminar, to common drip
Green grass or young crops, the adhesive property of modified pitch and this conventional sticking material of modified emulsifying asphalt under the conditions of different temperatures and spread quantity
Testing research is carried out, is proposed using the bond shear strength under different temperatures as interlayer materials adhesive property evaluation index.
Current generation, inter-layer shearing strength method of testing used is numerous in engineering, but there are many shortcomings, to test result
Affect larger, subject matter there are following several classes：1. can not true simulated roadway working environment, that is, the data for drawing do not utilize
Value, is mainly manifested in：Vertical load etc. is not considered；No data automatic acquisition equipment when 2. testing, mainly manually measuring
And record, measuring accuracy is severely impacted；3. test equipment simple structure, testability can be single, meets complex situations test
As a result accuracy rate is low, poor operability.
At present, the method for testing that can be also evaluated not used for bituminous paving interlayer adhesion.
The content of the invention
The invention reside in overcoming the deficiencies in the prior art, there is provided a kind of method of testing of bituminous paving interlayer cohesive force, energy
The vertical load load of enough true simulation bituminous pavings, obtains cohesive force bonding force parameter, is easy to interlayer materials bond propertiess to comment
Valency.
A kind of method of testing of bituminous paving interlayer cohesive force, it is characterised in that：Comprise the steps：
(1) test specimen is prepared：Cement concrete test specimen is prepared, in placing it in mould, uniform application sticking layer oil waits viscous
Layer oil is reached after surface drying, thereon using rolling molding mode compact dimensions identical bituminous concrete test specimen, after test specimen health preserving
The demoulding, obtains the complete test specimen that two-layer is bonded together, and after test specimen cooling cutting suitable dimensions are carried out, and labelling is good, is ready for
Pull-out test；
(2) test specimen is installed, first the lower clamp of test device is fixed on press base by nut connection, then
Test specimen to be tested is positioned in lower clamp, while the upper fixture of test device is fixed on into press ram by nut
On, blood pressure lowering head is gently put down, adjust upper fixture and be allowed to be coincide with test specimen, after adjusting, continue to decline pressure head so that on
Lower clamp is adjacent to, and upper lower clamp is fixedly clamped respectively at test specimen, and test specimen is installed；
(3) test is started, Opening pressure machine adjusts speed, proceeds by pull-out test, force value and displacement on display
Start change, after test specimen is pulled open, force value reaches peak value, record, peak value now as calculates the maximum that intensity is dialled in drawing
Destructive power, is completed, and dismantles test specimen.
And, described test device includes forcing press and test fixture, and test fixture includes upper fixture and lower clamp, institute
State lower clamp to be made up of the three faces fixation enclosing and a face portable plate of horizonal base plate and its periphery, the upper fixture is by horizontal top
And its enclosing is fixed in three faces of periphery and a face portable plate is constituted, lower clamp, the portable plate of upper fixture are located at corresponding same up and down
Side, portable plate and its be relatively fixed between enclosing and be attached using parallel screw.
And, the horizonal base plate center of described lower clamp is provided with screw hole, by screw connection in forcing press work
Make on the base at the axle center of platform.
And, the horizontal top center of described upper fixture is welded with nut, and by nut press ram is connected
The drawing force transducer that axle center bottom is fixedly mounted with.
The advantages of the present invention are：
1. the method for testing of this bituminous paving interlayer cohesive force, using special test fixture, during test upper fixture, under
Test test specimen is put between fixture, upper fixture and lower clamp are respectively equipped with adjustable space, by parallel screw it is elastic come adapt to examination
Part size, its advantage is：Fixture is adapted to sample dimensions error, it is ensured that can clamp in test specimen reasonable sizes；Can have
The actual interlayer adhesion of effect simulated field, for application true reference data is provided；It is easy to use, it is only necessary to usual pressure test machine
Can be tested, wide accommodation.
2. the method for testing of this bituminous paving interlayer cohesive force, its test fixture can be entered by parallel screw to portable plate
Row is adjusted, it is ensured that clamp test specimen and do not press from both sides bad test specimen, by this fixture, it is to avoid original pull strength test result is single,
Test area is too small the shortcomings of cause error excessive, regardless of the interlayer pulling capacity of structure, including bituminous concrete and Colophonium
Between concrete, between bituminous concrete and cement concrete, the interlayer adhesion between cement concrete and cement concrete,
As long as test needs can the corresponding test specimen of molding, determine different materials structures cohesive force between layers.
3. the method for testing of this bituminous paving interlayer cohesive force, its test fixture upper fixture and lower clamp two ends center are adopted
Screw connection pressure testing machine is used, even if sample dimensions have error, also be can guarantee that when carrying out pull-out test, pulling force is in same
On axle center, test process automation degree is high, and data are accurately and reliably.
4. the method for testing of this bituminous paving interlayer cohesive force, its test fixture has as test specimen flexible in size is adjustable,
The measure of each structure sheaf interlayer adhesion of road pavement is realized, with high precision, verity is good, the advantage of good reliability.
5. the method for testing of this bituminous paving interlayer cohesive force, can truly simulate the vertical load load of bituminous paving,
Cohesive force bonding force parameter is obtained, is easy to interlayer materials bond propertiess evaluation.
Description of the drawings
Fig. 1 is the structural representation of test device of the present invention；
Fig. 2 is the A direction views of Fig. 1.
Reference：
1- press rams, 2- drawing force transducers, 3- upper fixtures, 4- forcing presses, 5- lower clamps, 6- bases, 7- work
Platform, 8- motors, 9- pedestals, 10- horizonal base plates, 11- portable plates, 12- parallel screws, 13- screw holes, 14- fix enclosing.
Specific embodiment
Below by specific embodiment, the invention will be further described, and following examples are descriptive, is not limit
Qualitatively, it is impossible to which protection scope of the present invention is limited with this.
A kind of method of testing of bituminous paving interlayer cohesive force, it comprises the steps：
(2) test specimen is prepared：The cement concrete test specimen that length × width × height is 30cm × 30cm × 5cm is prepared, is put
In the mould of 30cm*30cm*10cm, uniform application sticking layer oil waits sticking layer oil to reach after surface drying, is ground into using wheel thereon
The 30cm*30cm*5cm bituminous concretes that type mode compact dimensions are, the demoulding after test specimen health preserving obtains what two-layer was bonded together
Complete test specimen, is cut after test specimen cooling, and the size of test specimen is 10cm*10cm*10cm after cutting, and labelling is good, is ready for
Pull-out test；
(2) test specimen is installed, first the lower clamp of test fixture is fixed on press base by nut connection, then
Test specimen to be tested is positioned in lower clamp, while the upper fixture of test fixture is fixed on into press ram by nut
On, blood pressure lowering head is gently put down, adjust upper fixture and be allowed to be coincide with test specimen, after adjusting, continue to decline pressure head so that on
Lower clamp is adjacent to, and upper lower clamp is fixedly clamped respectively at test specimen, and test specimen is installed；
(3) test is started, Opening pressure machine adjusts speed, proceeds by pull-out test, force value and displacement on display
Start change, after test specimen is pulled open, force value reaches peak value, record, peak value now as calculates the maximum that intensity is dialled in drawing
Destructive power, is completed, and dismantles test specimen, when not testing, to maintain fixture, one layer of oil reservoir is smeared after cleaning up and is protected.
The test device of bituminous paving interlayer cohesive force used in the present invention, as shown in Figure 1, 2, it include forcing press and
Test fixture, test fixture includes upper fixture 3 and lower clamp 5, and lower clamp is fixed by three faces of horizonal base plate 10 and its periphery and enclosed
Gear 14 and one face portable plate 11 constitute, portable plate and its be relatively fixed between enclosing and be attached using parallel screw 12.
Upper fixture fixes enclosing by three faces of horizontal top and its periphery and a face portable plate is constituted, identical with lower clamp structure.Lower folder
Tool, the portable plate of upper fixture are located at upper and lower corresponding homonymy.
The horizonal base plate center of lower clamp is provided with screw hole 13, by screw connection in the work platformses 7 of forcing press 4
On base 6 at axle center.The horizontal top center of upper fixture is welded with nut, and by nut the axle of press ram 1 is connected
The drawing force transducer 2 that heart bottom is fixedly mounted with.The pressure head of forcing press is by the motor 8 in pedestal 9 and the lead screw transmission machine of both sides
Structure drives and is lifted.
Test test specimen is put between upper fixture, lower clamp during test, upper fixture and lower clamp are respectively equipped with adjustable space,
It is elastic adapting to sample dimensions by parallel screw.
Although disclosed embodiments of the invention and accompanying drawing for the purpose of illustration, those skilled in the art can manage
Solution, without departing from the present invention and spirit and scope of the appended claims in, various replacements, change and modifications all be it is possible,
Therefore the scope of the present invention is not limited to embodiment and accompanying drawing disclosure of that.
Claims (4)
1. a kind of method of testing of bituminous paving interlayer cohesive force, it is characterised in that：Comprise the steps：
(1) test specimen is prepared：Cement concrete test specimen is prepared, in placing it in mould, uniform application sticking layer oil waits sticking layer oil
After reaching surface drying, thereon using rolling molding mode compact dimensions identical bituminous concrete test specimen, the demoulding after test specimen health preserving,
The complete test specimen that two-layer is bonded together is obtained, after test specimen cooling cutting suitable dimensions are carried out, labelling is good, be ready for drawing survey
Examination；
(2) test specimen is installed, first the lower clamp of test device is fixed on press base by nut connection, then will treat
The test specimen of test is positioned in lower clamp, while the upper fixture of test device is fixed on press ram by nut, is delayed
Blood pressure lowering head is put down slowly, upper fixture is adjusted and is allowed to be coincide with test specimen, after adjusting, continue to decline pressure head so that press from both sides up and down
Tool is adjacent to, and upper lower clamp is fixedly clamped respectively at test specimen, and test specimen is installed；
(3) test is started, Opening pressure machine adjusts speed, proceeds by pull-out test, and force value and displacement on display starts
Change, after test specimen is pulled open, force value reaches peak value, record, and peak value now as calculates the maximal destruction that intensity is dialled in drawing
Power, is completed, and dismantles test specimen.
2. the method for testing of a kind of bituminous paving interlayer cohesive force according to claim 1, it is characterised in that：Described survey
Trial assembly is put including forcing press and test fixture, and test fixture includes upper fixture and lower clamp, the lower clamp by horizonal base plate and
Enclosing is fixed in three faces of its periphery and a face portable plate is constituted, and the upper fixture is fixed by three faces of horizontal top and its periphery and enclosed
Gear and a face portable plate are constituted, and lower clamp, the portable plate of upper fixture are located at upper and lower corresponding homonymy, and portable plate is relative with it
It is attached using parallel screw between fixed enclosing.
3. the method for testing of a kind of bituminous paving interlayer cohesive force according to claim 2, it is characterised in that：Under described
The horizonal base plate center of fixture is provided with screw hole, by base of the screw connection at the axle center of forcing press work platformses
On.
4. the method for testing of a kind of bituminous paving interlayer cohesive force according to claim 2, it is characterised in that：Described is upper
The horizontal top center of fixture is welded with nut, and by nut the pulling capacity that press ram axle center bottom is fixedly mounted with is connected
Sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611158943.2A CN106644933A (en) | 2016-12-15 | 2016-12-15 | Testing method of interlayer bonding power of asphalt pavement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611158943.2A CN106644933A (en) | 2016-12-15 | 2016-12-15 | Testing method of interlayer bonding power of asphalt pavement |
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| CN106644933A true CN106644933A (en) | 2017-05-10 |
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| CN201611158943.2A Pending CN106644933A (en) | 2016-12-15 | 2016-12-15 | Testing method of interlayer bonding power of asphalt pavement |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108562538A (en) * | 2018-03-09 | 2018-09-21 | 中路高科(北京)公路技术有限公司 | A kind of asphalt material bonding force test method |
| CN108918840A (en) * | 2018-09-17 | 2018-11-30 | 西安公路研究院 | A kind of Bituminous Isolation Agent isolation performance evaluation method based on isolation performance library |
| CN108918839A (en) * | 2018-09-17 | 2018-11-30 | 西安公路研究院 | A kind of test of Bituminous Isolation Agent isolation performance and evaluation method |
| CN109765042A (en) * | 2019-01-24 | 2019-05-17 | 郑州大学 | A kind of multi-functional tapping screw drawing test clamp |
| CN109959607A (en) * | 2019-04-30 | 2019-07-02 | 中国水利水电第十二工程局有限公司 | A kind of concrete tension bond strength testing method |
| CN110907353A (en) * | 2019-12-04 | 2020-03-24 | 河海大学 | Test device for bonding strength between multi-layer bonding materials |
| CN111595693A (en) * | 2020-05-29 | 2020-08-28 | 吉林省嘉鹏集团有限公司 | Test method for asphalt mixture drawing test |
| CN112147314A (en) * | 2020-09-25 | 2020-12-29 | 西南交通大学 | Indoor molding-based nondestructive separation method for interlayer interface of asphalt pavement structure |
| CN113125338A (en) * | 2019-12-31 | 2021-07-16 | 悉地（苏州）勘察设计顾问有限公司 | Quantitative testing device and method for cohesive force between pervious concrete aggregate and slurry |
| CN113640215A (en) * | 2021-08-30 | 2021-11-12 | 河南省交通规划设计研究院股份有限公司 | On-site simulation method based on nondestructive testing of pavement interlayer bonding strength |
| CN114563346A (en) * | 2022-04-28 | 2022-05-31 | 南京庆瑞水泥有限公司 | Cement bonding strength detection device |
| CN115950820A (en) * | 2023-03-13 | 2023-04-11 | 四川蜀工公路工程试验检测有限公司 | Device and method for measuring interface bonding force of asphalt mortar |
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| CN204116208U (en) * | 2014-10-21 | 2015-01-21 | 长安大学 | A kind of pavement structure interlayer cohesive strength pick-up unit |
| CN105388107A (en) * | 2015-05-04 | 2016-03-09 | 徐州工程学院 | Protective coating adhesion effect test device and test method under action of uniaxial tension |
| CN205580879U (en) * | 2016-04-29 | 2016-09-14 | 长安大学 | Detector is drawn to adhesion strength between structural layer of road surface |
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2016
- 2016-12-15 CN CN201611158943.2A patent/CN106644933A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204116208U (en) * | 2014-10-21 | 2015-01-21 | 长安大学 | A kind of pavement structure interlayer cohesive strength pick-up unit |
| CN105388107A (en) * | 2015-05-04 | 2016-03-09 | 徐州工程学院 | Protective coating adhesion effect test device and test method under action of uniaxial tension |
| CN205580879U (en) * | 2016-04-29 | 2016-09-14 | 长安大学 | Detector is drawn to adhesion strength between structural layer of road surface |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108562538A (en) * | 2018-03-09 | 2018-09-21 | 中路高科(北京)公路技术有限公司 | A kind of asphalt material bonding force test method |
| CN108918839B (en) * | 2018-09-17 | 2021-07-13 | 西安公路研究院有限公司 | Asphalt separant isolation performance testing and evaluating method |
| CN108918840A (en) * | 2018-09-17 | 2018-11-30 | 西安公路研究院 | A kind of Bituminous Isolation Agent isolation performance evaluation method based on isolation performance library |
| CN108918839A (en) * | 2018-09-17 | 2018-11-30 | 西安公路研究院 | A kind of test of Bituminous Isolation Agent isolation performance and evaluation method |
| CN109765042A (en) * | 2019-01-24 | 2019-05-17 | 郑州大学 | A kind of multi-functional tapping screw drawing test clamp |
| CN109959607A (en) * | 2019-04-30 | 2019-07-02 | 中国水利水电第十二工程局有限公司 | A kind of concrete tension bond strength testing method |
| CN110907353A (en) * | 2019-12-04 | 2020-03-24 | 河海大学 | Test device for bonding strength between multi-layer bonding materials |
| CN110907353B (en) * | 2019-12-04 | 2021-10-19 | 河海大学 | Test device for bonding strength between multi-layer bonding materials |
| CN113125338A (en) * | 2019-12-31 | 2021-07-16 | 悉地（苏州）勘察设计顾问有限公司 | Quantitative testing device and method for cohesive force between pervious concrete aggregate and slurry |
| CN111595693A (en) * | 2020-05-29 | 2020-08-28 | 吉林省嘉鹏集团有限公司 | Test method for asphalt mixture drawing test |
| CN112147314A (en) * | 2020-09-25 | 2020-12-29 | 西南交通大学 | Indoor molding-based nondestructive separation method for interlayer interface of asphalt pavement structure |
| CN113640215A (en) * | 2021-08-30 | 2021-11-12 | 河南省交通规划设计研究院股份有限公司 | On-site simulation method based on nondestructive testing of pavement interlayer bonding strength |
| CN114563346A (en) * | 2022-04-28 | 2022-05-31 | 南京庆瑞水泥有限公司 | Cement bonding strength detection device |
| CN114563346B (en) * | 2022-04-28 | 2022-10-18 | 诺信(广东)工程检测有限公司 | Cement bonding strength detection device |
| CN115950820A (en) * | 2023-03-13 | 2023-04-11 | 四川蜀工公路工程试验检测有限公司 | Device and method for measuring interface bonding force of asphalt mortar |
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