CN204514786U - A kind of equipment for testing pavement seam filling material bonding fatigue behaviour - Google Patents
A kind of equipment for testing pavement seam filling material bonding fatigue behaviour Download PDFInfo
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- CN204514786U CN204514786U CN201520216645.9U CN201520216645U CN204514786U CN 204514786 U CN204514786 U CN 204514786U CN 201520216645 U CN201520216645 U CN 201520216645U CN 204514786 U CN204514786 U CN 204514786U
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Abstract
For testing an equipment for pavement seam filling material bonding fatigue behaviour, the testing equipment of described bonding fatigue property test comprises proving installation, shaking platform and base, and wherein shaking platform is connected by four springs with base.Two motors are housed in the bottom surface of shaking platform, and motor is engaged with two excentric shafts by gear, and two excentric shafts are separately positioned on horizontal and vertical direction.Be provided with rubber layer in the bottom surface of base and produce slip to prevent whole device from operationally vibrating.In two pieces of test specimens one piece is fixed on shaking platform, another block is fixed on bottom and is equipped with on the test lead that universal wheel can move freely, by pavement seam filling material, two pieces of experiment test specimens are bonded together, vibration is produced in the vertical direction, the accumulative time of vibration destroyed with bonding interface, vibration class and interfacial failure grade comprehensive and quantitative evaluation pavement seam filling material bonding fatigue behaviour with horizontal direction.The utility model is for testing pavement seam filling material bonding fatigue behaviour.
Description
Technical field:
The utility model relates to a kind of testing equipment, is specifically related to a kind of equipment for testing pavement seam filling material bonding fatigue behaviour.
Background technology
Crack is one of Major Diseases of bituminous pavement.The ponding that the existence in crack makes road show or other impurity enter roadbase by crack, greatly cut down the strength and stability degree of road entirety, make road receive more serious destruction.In the northern area of China, temperature Change is fast, and the large and cold weather of day and night temperature, the crack problem of bituminous pavement is particularly outstanding.
At present both at home and abroad the disposal route of fracture is normally repaired with gap-grouting material fracture, and the initial matrix pitch of heat that uses carries out the cementation of fissures, but does not meet request for utilization due to matrix pitch performance, after the cementation of fissures, occur other problems very soon.SBS modified bitumen gap-grouting material is used widely in asphalt pavement crack is repaired with its excellent performance, but SBS modified bitumen is a kind of non-polar material, and the cohesive strength between old pavement is lower, easily occur that when road surface low-temperature shrink gap-grouting material and old pavement are peeled off to come off, regenerate crack.Nowadays gap-grouting material on the market makes rapid progress, and usability is also uneven, but the usability of neither one simple effective method to gap-grouting material is evaluated all the time.
Gap-grouting material is not only directly exposed in external environment, but also will be bonded together on the road surface that two pieces disconnect under the effect of wheel load, therefore how to test and evaluate the key point that the usability of gap-grouting material under the effect of reloading, deformation enters the excellent summary of usability being evaluation gap-grouting material.But, in the middle of existing technology and equipment, reporting the equipment for testing gap-grouting material usability, and there is no can to complete under upper institute condition test process, still lacking this equipment at present thus.
Adopt the repetition relative displacement between the wheel load of which kind of method simulation repetition and two block road plates to become large difficult point and an emphasis of the usability of test gap-grouting material, the time of recording Crack failure inefficacy timely is also a difficult point.
Utility model content:
The technical problems to be solved in the utility model is to provide a kind of equipment for testing pavement seam filling material bonding fatigue behaviour, for the usability of simulation test pavement seam filling material, thus solve the test problem of pavement seam filling material usability, finally in order to solve the problem evaluating pavement seam filling material quality in engineering reality.
The utility model in order to solve the problems of the technologies described above the technical scheme taked is:
A kind of equipment for testing pavement seam filling material bonding fatigue behaviour, comprise base and be arranged on the shaking platform on base, be connected by some springs be evenly arranged between base with shaking platform, the bottom of shaking platform is provided with the adjustable motor of two rotating speeds, and the output shaft of two motors is meshed with the vertical eccentric axle be fixed on shaking platform and horizontal excentric shaft respectively by gear;
The top of shaking platform is provided with proving installation, proving installation comprises stiff end and movable end, wherein, the stiff end of proving installation comprises the test stiff end base be fixed on shaking platform and the test stiff end test specimen draw-in groove be fixed on above test stiff end base, and the movable end of proving installation comprises test activity bottom seat and is fixed on the test activity end test specimen draw-in groove above the seat of test activity bottom;
During test, test stiff end test specimen is fixed in test stiff end test specimen draw-in groove, and test activity end test specimen is fixed in test activity end test specimen draw-in groove, and test stiff end test specimen is connected by bonding interface with between test activity end test specimen; Disengaging time registering instrument for recording bonding interface time to rupture is arranged on test stiff end base.
The utility model further improves and is: base is fixed on testing table, and is also provided with rubber antiskid layer between base and testing table.
The utility model further improves and is: the upper end of each spring is all fixed on the bottom of shaking platform by upside spring stationary pipes, and the lower end of each spring is all fixed on base by downside spring stationary pipes.
The utility model further improves and is: test stiff end base is fixed on shaking platform by test stiff end base fixed screw; Test stiff end test specimen draw-in groove is fixed on the top of test stiff end base by the vertical standing screw of test stiff end; Test stiff end test specimen is fixed in test stiff end test specimen draw-in groove by the horizontal standing screw of test stiff end.
The utility model further improves and is: test activity bottom seat is arranged on shaking platform by some universal wheels be evenly arranged; Test activity end test specimen draw-in groove is fixed on the seat of test activity bottom by the vertical standing screw of test activity end; Test activity end test specimen is fixed in test activity end test specimen draw-in groove by the horizontal standing screw of test activity end.
The utility model further improves and is: test activity bottom seat is also provided with the configuration of test activity end.
The utility model further improves and is: shaking platform is provided with two cover proving installations and disengaging time registering instrument.
Compared with prior art, effective effect of the present utility model is:
The testing apparatus that the utility model provides achieves the test of pavement seam filling material usability, advantage is: it breaches the limitation of load mode, the relative displacement that the load adopting shaking platform to utilize principle of inertia to apply to repeat to tested gap-grouting material bonding interface repeats with generation.
Further, the utility model provides two cover proving installations and disengaging time registering instrument, can complete two groups of tests simultaneously, ensure stronger relativity and test efficiency; In record data, can test specimen destroys under accurate recording time, ensure the accuracy of data and the repeatability of test; The accumulative time of vibration destroyed with bonding interface, vibration class and interfacial failure grade comprehensive and quantitative evaluation pavement seam filling material bonding fatigue behaviour.
In sum, the utility model is mainly pavement crack process in solution engineering reality and develops, and can be used for the usability of testing pavement seam filling material.
Accompanying drawing illustrates:
Fig. 1 is that the utility model is for testing the front view of the equipment of pavement seam filling material bonding fatigue behaviour;
Fig. 2 is the vertical view of Fig. 1;
In figure: 1-shaking platform, 1-1-base, 1-2-rubber antiskid layer, 1-3-downside spring stationary pipes, 1-4-upside spring stationary pipes, 1-5-spring, 2-motor, 2-1-vertical eccentric axle, 2-2-horizontal excentric shaft, 3-test stiff end base, 3-1-horizontal standing screw of test stiff end, 3-2-test stiff end base fixed screw, 3-3-vertical standing screw of test stiff end, 3-4-test stiff end test specimen draw-in groove, 4-test activity bottom seat, 4-1-horizontal standing screw of test activity end, 4-2-universal wheel, 4-3-test activity end counterweight, 4-4-vertical standing screw of test activity end, 4-5-test activity end test specimen draw-in groove, 5-test activity end test specimen, 6-test stiff end test specimen, 7-bonding interface, 8-disengaging time registering instrument.
Embodiment:
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As depicted in figs. 1 and 2, a kind of equipment for testing pavement seam filling material bonding fatigue behaviour of the utility model, comprise base 1-1 and be arranged on the shaking platform 1 on base 1-1, base 1-1 is fixed on testing table, and be also provided with rubber antiskid layer 1-2 between base 1-1 and testing table, to prevent from vibrating the slip produced during whole plant running; Be connected by some spring 1-5 be evenly arranged between base 1-1 with shaking platform 1, the upper end of each spring 1-5 is all fixed on the bottom of shaking platform 1 by upside spring stationary pipes 1-4, the lower end of each spring 1-5 is all fixed on base 1-1 by downside spring stationary pipes 1-3; The bottom of shaking platform 1 is provided with the adjustable motor 2 of two rotating speeds, the output shaft of two motors 2 is meshed with the vertical eccentric axle 2-1 be fixed on shaking platform 1 and horizontal excentric shaft 2-2 respectively by gear, can provide the vibration in horizontal direction and vertical direction respectively;
The top of shaking platform 1 is provided with proving installation, proving installation comprises stiff end and movable end, wherein, the stiff end of proving installation comprises the test stiff end base 3 be fixed on shaking platform 1 and the test stiff end test specimen draw-in groove 3-4 be fixed on above test stiff end base 3, and the movable end of proving installation comprises test activity bottom seat 4 and is fixed on the test activity end test specimen draw-in groove 4-5 above test activity bottom seat 4;
During test, test stiff end test specimen 6 is fixed in test stiff end test specimen draw-in groove 3-4, test activity end test specimen 5 is fixed in test activity end test specimen draw-in groove 4-5, and test stiff end test specimen 6 and test activity end test specimen 5 by gap-grouting material be bonded together maintenance form intensity after for testing, record bonding interface 7 is arranged on bonding interface 7, record bonding interface 7 when bonding interface destroys and can record time to rupture, and the disengaging time registering instrument 8 for recording bonding interface 7 time to rupture is arranged on test stiff end base 3.
Above-mentioned test stiff end base 3 is fixed on shaking platform 1 by test stiff end base fixed screw 3-2; Test stiff end test specimen draw-in groove 3-4 is fixed on the top of test stiff end base 3 by the vertical standing screw 3-3 of test stiff end; Test stiff end test specimen 6 is fixed in test stiff end test specimen draw-in groove 3-4 by the horizontal standing screw 3-1 of test stiff end.Test activity bottom seat 4 is arranged on shaking platform 1 by some universal wheel 4-2 be evenly arranged, can be movable on shaking platform 1 freely; Test activity end test specimen draw-in groove 4-5 is fixed on test activity bottom seat 4 by the vertical standing screw 4-4 of test activity end; Test activity end test specimen 5 is fixed in test activity end test specimen draw-in groove 4-5 by the horizontal standing screw 4-1 of test activity end.
Further, test activity bottom seat 4 is also provided with test activity end configuration 4-3.
Further, shaking platform 1 is provided with two cover proving installations and disengaging time registering instrument 8, can carries out two groups of tests under the same conditions simultaneously, the accuracy of the comparative and data of strengthen test also improves test efficiency.
Based on the method for testing of the above-mentioned equipment for testing pavement seam filling material bonding fatigue behaviour, comprise following operation steps:
Step one, ground surface material is made the standard rut plate test specimen of 300mm*300mm*50mm, by the state of backlash pavement crack again after grooving process of two pieces of rut plate test specimens, then two blocks of rut plates are fixed on stiff end and the movable end of proving installation respectively by standing screw;
Step 2, to be bonded together with the rut plate of quantitative pavement seam filling material by two piece of one determining deviation, and at room temperature health 24h, use in order to follow-up test;
Step 3, be fixed on bonding interface by disengaging time registering instrument, reset by registering instrument, open shaking platform and start timing simultaneously, testing in the process of carrying out, according to concrete pre-set programs conversion vibration frequency and direction of vibration, concrete vibration class is in table one.Sustained vibration is until bonding interface destroys, and now two pieces of rut plate test specimens are separated, and read the time to rupture that disengaging time registering instrument records;
Step 4, the time of destroying with bonding interface, the vibration class of shaking platform and bonding interface destroy grade Comprehensive Assessment pavement seam filling material bonding fatigue behaviour; The time that bonding interface destroys directly is read by disengaging time registering instrument; The vibration class of shaking platform is determined, in table one by the vibration mode preset; The interface of coming out during off-test is the destruction interface of gap-grouting material bonding interface, destroys the destruction grade at interface in table two.
Table one shaking platform vibration class
Vibration class score higher explanation oscillation intensity is higher.
Table two destroys interface grade evaluation index
Interface ranking score is higher, illustrates that bonding interface when destroying between pavement seam filling material and road surface is more complete.
Claims (7)
1. one kind for test pavement seam filling material bonding fatigue behaviour equipment, it is characterized in that: comprise base (1-1) and be arranged on the shaking platform (1) on base (1-1), be connected by some springs (1-5) be evenly arranged between base (1-1) with shaking platform (1), the bottom of shaking platform (1) is provided with the adjustable motor (2) of two rotating speeds, the output shaft of two motors (2) is meshed with the vertical eccentric axle (2-1) be fixed on shaking platform (1) and horizontal excentric shaft (2-2) respectively by gear,
The top of shaking platform (1) is provided with proving installation, proving installation comprises stiff end and movable end, wherein, the stiff end of proving installation comprises the test stiff end base (3) be fixed on shaking platform (1) and test stiff end test specimen draw-in groove (3-4) being fixed on test stiff end base (3) top, and the movable end of proving installation comprises test activity bottom seat (4) and is fixed on test activity end test specimen draw-in groove (4-5) of top, test activity bottom seat (4);
During test, test stiff end test specimen (6) is fixed in test stiff end test specimen draw-in groove (3-4), test activity end test specimen (5) is fixed in test activity end test specimen draw-in groove (4-5), and test stiff end test specimen (6) is connected by bonding interface (7) with between test activity end test specimen (5); Disengaging time registering instrument (8) for recording bonding interface (7) time to rupture is arranged on test stiff end base (3).
2. the equipment for testing pavement seam filling material bonding fatigue behaviour according to claim 1, it is characterized in that: base (1-1) is fixed on testing table, and be also provided with rubber antiskid layer (1-2) between base (1-1) and testing table.
3. the equipment for testing pavement seam filling material bonding fatigue behaviour according to claim 1, it is characterized in that: the upper end of each spring (1-5) is all fixed on the bottom of shaking platform (1) by upside spring stationary pipes (1-4), the lower end of each spring (1-5) is all fixed on base (1-1) by downside spring stationary pipes (1-3).
4. the equipment for testing pavement seam filling material bonding fatigue behaviour according to claim 1, is characterized in that: test stiff end base (3) is fixed on shaking platform (1) by test stiff end base fixed screw (3-2); Test stiff end test specimen draw-in groove (3-4) is fixed on the top of test stiff end base (3) by the test vertical standing screw of stiff end (3-3); Test stiff end test specimen (6) is fixed in test stiff end test specimen draw-in groove (3-4) by the test horizontal standing screw of stiff end (3-1).
5. the equipment for testing pavement seam filling material bonding fatigue behaviour according to claim 1, is characterized in that: test activity bottom seat (4) is arranged on shaking platform (1) by some universal wheels (4-2) be evenly arranged; Test activity end test specimen draw-in groove (4-5) is fixed on test activity bottom seat (4) by the vertical standing screw of test activity end (4-4); Test activity end test specimen (5) is fixed in test activity end test specimen draw-in groove (4-5) by the horizontal standing screw of test activity end (4-1).
6. the equipment for testing pavement seam filling material bonding fatigue behaviour according to claim 1, is characterized in that: test activity bottom seat (4) is also provided with test activity end configuration (4-3).
7. the equipment for testing pavement seam filling material bonding fatigue behaviour according to claim 1, is characterized in that: shaking platform (1) is provided with two cover proving installations and disengaging time registering instrument (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520216645.9U CN204514786U (en) | 2015-04-09 | 2015-04-09 | A kind of equipment for testing pavement seam filling material bonding fatigue behaviour |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520216645.9U CN204514786U (en) | 2015-04-09 | 2015-04-09 | A kind of equipment for testing pavement seam filling material bonding fatigue behaviour |
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| Publication Number | Publication Date |
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| CN204514786U true CN204514786U (en) | 2015-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520216645.9U Expired - Fee Related CN204514786U (en) | 2015-04-09 | 2015-04-09 | A kind of equipment for testing pavement seam filling material bonding fatigue behaviour |
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| CN (1) | CN204514786U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104777095A (en) * | 2015-04-09 | 2015-07-15 | 长安大学 | Equipment and method for testing bonding fatigue performance of pavement crack filling material |
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2015
- 2015-04-09 CN CN201520216645.9U patent/CN204514786U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104777095A (en) * | 2015-04-09 | 2015-07-15 | 长安大学 | Equipment and method for testing bonding fatigue performance of pavement crack filling material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 Termination date: 20160409 |