CN106198941B - A kind of method evaluated heat and fill class base joint grouting glue high-temperature behavior - Google Patents
A kind of method evaluated heat and fill class base joint grouting glue high-temperature behavior Download PDFInfo
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- CN106198941B CN106198941B CN201610437453.XA CN201610437453A CN106198941B CN 106198941 B CN106198941 B CN 106198941B CN 201610437453 A CN201610437453 A CN 201610437453A CN 106198941 B CN106198941 B CN 106198941B
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Abstract
A kind of method evaluated heat and fill class base joint grouting glue high-temperature behavior, it is related to a kind of method evaluated heat and fill class base joint grouting glue performance.The present invention is to solve the technical problem for the high-temperature behavior that current base joint grouting glue high-temperature behavior evaluation method can not reflect under the true pavement state of base joint grouting glue well.The present invention:First, road bed data survey;2nd, rut plate is prepared;3rd, the cementation of fissures;4th, then wheel tracking test compares deformation.The present invention, using the actual conditions at the wheel tracking test scene of can simulating, evaluates the viscous wheel of base joint grouting glue and rolls out situation on the basis of the evaluation of existing base joint grouting glue high-temperature behavior;Equipment and experimental enviroment are easily realized, the existing equipment in laboratory are rationally make use of using the method for wheel tracking test evaluation base joint grouting glue high-temperature behavior, it is not necessary to additionally develop new equipment;The evaluation index of base joint grouting glue deformation length L and base joint grouting glue deformation area two base joint grouting glue high-temperature behaviors of S is provided, 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 evaluated heat and fill class base joint grouting glue high-temperature behavior.
Background technology
Crack is a kind of relatively conventional pavement disease, and the method for handling pavement crack disease at present is usually the cementation of fissures, heat
Class base joint grouting glue is filled as a kind of common gap-grouting material by the extensive use of maintenance department.Heat fills class base joint grouting glue (the hereinafter referred to as cementation of fissures
Glue) it is made of modified pitch macromolecule polymer material, good cementation of fissures glue material should have good high-temperature behavior.The cementation of fissures
Glue high-temperature stability refers to that it stablizes, do not trickled, not gluing wheel under the high temperature conditions, is mainly shown as the work repeatedly in wheel load
It will not be taken out of under by wheel.Although the use of base joint grouting glue is relatively broad, for the examination of the evaluation of base joint grouting glue high-temperature behavior
Proved recipe method need further perfect.At present, the domestic evaluation method for base joint grouting glue high-temperature behavior has awl penetration test, softening
Experimental tests, slamp value experiment, but the high-temperature behavior that can not all reflect well under the true pavement state of base joint grouting glue.
The content of the invention
The present invention is can not to reflect the cementation of fissures well to solve current heat filling class base joint grouting glue high-temperature behavior evaluation method
The technical problem of high-temperature behavior under the true pavement state of glue, and a kind of side for evaluating heat and filling class base joint grouting glue high-temperature behavior is provided
Method.
The method that a kind of evaluation heat of the present invention fills class base joint grouting glue high-temperature behavior is carried out according to the following steps:
First, road bed data survey:Investigate and obtain the basic data of actual bituminous paving;
2nd, rut plate is prepared:It is complete that the basic data of the actual bituminous paving obtained according to step 1 prepares basic data
Identical asphalt, is then placed in mould, by the way of reserved groove, use rolling method prepare a size for
300mm × 300mm × 50mm cuboid rut plate test specimen, and the surface that a size is 300mm × 300mm wherein
Centerline has a cuboid groove to simulate the crack of bituminous paving, and the length of cuboid groove is 300mm, width and depth
Degree is identical with the width and depth of the cementation of fissures of actual bituminous paving fluting, cuboid groove center line alongst and length
The center line of rut plate surface of test piece where cube groove overlaps;The cementation of fissures groove width of described actual bituminous paving is
10mm~20mm, depth are 10mm~20mm;
3rd, the cementation of fissures:With base joint grouting glue, the cementation of fissures, the base joint grouting glue after guarantee cooling are higher by the cuboid groove described in step 2
Rut plate surface of test piece 2mm~3mm where cuboid groove, the base joint grouting glue after cooling is in the rut plate where cuboid groove
Surface of test piece is rectangle and overlapped with the center line of cuboid groove that the width of the base joint grouting glue after cooling is 80mm;
4th, wheel tracking test:The complete rut plate test specimen of the cementation of fissures is placed in wheel rutting test machine specimen stage, the temperature of testing machine is set
For 60 DEG C, the direction of guarantee wheel traveling and cuboid groove long side direction are vertically and in the center line of cuboid groove long side
Place, wheel tracking test observe the deformation of base joint grouting glue in 5min, 10min, 20min, 30min and 45min after starting, if some
Base joint grouting glue has occurred and that damage inactivation during timing node, that is, stops wheel tracking test, and this time is recorded as the out-of-service time, during failure
Between longer, base joint grouting glue high-temperature behavior it is better;If there is no damage inactivation in 45min base joint grouting glues, the examination of base joint grouting glue rut is calculated
The base joint grouting glue deformation length L or base joint grouting glue deformation area S tested, does 3~5 groups of parallel test and averagesWithDeformation lengthThe high-temperature behavior of smaller then base joint grouting glue is better, deformation areaSmaller then high-temperature behavior is better;
Wheel tracking test start after 45min, the exterior lateral area of two long sides of base joint grouting glue before wheel tracking test is not carried out
In, base joint grouting glue after deformation distance do not carry out two farthest points of two long sides of base joint grouting glue before wheel tracking test with apart from its compared with
The distance of two long sides near gap 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, base joint grouting glue of the base joint grouting glue before wheel tracking test is not carried out two after deformation
The area of the exterior lateral area of long side is respectively SAAnd SB, base joint grouting glue deformation area S is SAAnd SBSum.
The method of the present invention can be used for the high-temperature behavior for comparing base joint grouting glues different at that same temperature.
Base joint grouting glue generation damage inactivation refers to that base joint grouting glue all departs from cuboid groove in step 4.
The invention has the advantages that:
(1) it is high in existing base joint grouting glue the invention provides a kind of new method of effectively evaluating base joint grouting glue high-temperature behavior
On the basis of warm performance evaluation, the viscous wheel of the actual conditions at the wheel tracking test scene of can simulating, further evaluation base joint grouting glue is utilized
And situation is rolled out, make up the deficiency of existing experiment;
(2) equipment and experimental enviroment of the invention are easily realized, the side of base joint grouting glue high-temperature behavior is evaluated using wheel tracking test
Method rationally make use of the existing equipment in laboratory, it is not necessary to additionally develop new equipment;
(3) present invention provides base joint grouting glue deformation length L according to the rut plate experiment after wheel tracking test and base joint grouting glue deforms
The evaluation index of two base joint grouting glue high-temperature behaviors of area S, result of the test is clear, so as to effectively instruct the selection of base joint grouting glue.
Brief description of the drawings
Fig. 1 is the top view of the mould in step 2 of the present invention, and 1 is packing area, and 2 be projection;
Fig. 2 is the schematic diagram of the rut plate test specimen in step 2 in the present invention, and 3 be cuboid groove;
Fig. 3 is the schematic diagram of the rut plate test specimen after the cementation of fissures in step 3 of the present invention, and 4 be base joint grouting glue, and 5 be that rut plate tries
Part;
Fig. 4 is the schematic diagram that wheel tracking test is carried out in step 4 of the present invention, and 4 be base joint grouting glue, and 5 be rut plate test specimen, and 6 be wheel
Tire;
Fig. 5 is to take measurement base joint grouting glue deformation length L to test base joint grouting glue height after step 4 wheel tracking test of the present invention terminates
The schematic diagram of rut plate test specimen during warm nature energy, 4 is do not carry out the base joint grouting glue region before wheel tracking test, and 5 be rut plate test specimen, and 7
For the base joint grouting glue region after deformation;
Fig. 6 is to take measurement base joint grouting glue deformation area S to test base joint grouting glue height after step 4 wheel tracking test of the present invention terminates
The schematic diagram of rut plate test specimen during warm nature energy, 4 is do not carry out the base joint grouting glue region before wheel tracking test, and 5 be rut plate test specimen, and 7
For the base joint grouting glue region after deformation;
The unit of all sizes is mm in figure.
Embodiment
Embodiment one:With reference to Fig. 1-6, present embodiment is a kind of side for evaluating heat and filling class base joint grouting glue high-temperature behavior
Method, specifically carry out according to the following steps:
First, road bed data survey:Investigate and obtain the basic data of actual bituminous paving;
2nd, rut plate is prepared:It is complete that the basic data of the actual bituminous paving obtained according to step 1 prepares basic data
Identical asphalt, is then placed in mould, by the way of reserved groove, use rolling method prepare a size for
300mm × 300mm × 50mm cuboid rut plate test specimen, and the surface that a size is 300mm × 300mm wherein
Centerline has a cuboid groove to simulate the crack of bituminous paving, and the length of cuboid groove is 300mm, width and depth
Degree is identical with the width and depth of the cementation of fissures of actual bituminous paving fluting, cuboid groove center line alongst and length
The center line of rut plate surface of test piece where cube groove overlaps;The cementation of fissures groove width of described actual bituminous paving is
10mm~20mm, depth are 10mm~20mm;
3rd, the cementation of fissures:With base joint grouting glue, the cementation of fissures, the base joint grouting glue after guarantee cooling are higher by the cuboid groove described in step 2
Rut plate surface of test piece 2mm~3mm where cuboid groove, the base joint grouting glue after cooling is in the rut plate where cuboid groove
Surface of test piece is rectangle and overlapped with the center line of cuboid groove that the width of the base joint grouting glue after cooling is 80mm;
4th, wheel tracking test:The complete rut plate test specimen of the cementation of fissures is placed in wheel rutting test machine specimen stage, the temperature of testing machine is set
For 60 DEG C, the direction of guarantee wheel traveling and cuboid groove long side direction are vertically and in the center line of cuboid groove long side
Place, wheel tracking test observe the deformation of base joint grouting glue in 5min, 10min, 20min, 30min and 45min after starting, if some
Base joint grouting glue has occurred and that damage inactivation during timing node, that is, stops wheel tracking test, and this time is recorded as the out-of-service time, during failure
Between longer, base joint grouting glue high-temperature behavior it is better;If there is no damage inactivation in 45min base joint grouting glues, the examination of base joint grouting glue rut is calculated
The base joint grouting glue deformation length L or base joint grouting glue deformation area S tested, does 3~5 groups of parallel test and averagesWithDeformation lengthThe high-temperature behavior of smaller then base joint grouting glue is better, deformation areaSmaller then high-temperature behavior is better;
Wheel tracking test start after 45min, the exterior lateral area of two long sides of base joint grouting glue before wheel tracking test is not carried out
In, base joint grouting glue after deformation distance do not carry out two farthest points of two long sides of base joint grouting glue before wheel tracking test with apart from its compared with
The distance of two long sides near gap 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, base joint grouting glue of the base joint grouting glue before wheel tracking test is not carried out two after deformation
The area of the exterior lateral area of long side is respectively SAAnd SB, base joint grouting glue deformation area S is SAAnd SBSum.
Embodiment two:The difference of present embodiment and embodiment one is:Pitch described in step 1
The basic data on road surface is the species gathered materials in bituminous pavement top mix type, asphalt mixture gradation, compound and mixed
Close the label of material pitch.Other are identical with embodiment one.
Embodiment three:The difference of present embodiment and embodiment one is:Mould described in step 2
Have for the cuboid of a hollow uncovered, the depth of boring is 50mm, and length and width is 300mm, bottom internally
One projection is set among face, and the length of projection be 300mm, the width of projection and the highly cementation of fissures with actual bituminous paving respectively
The width of fluting is identical with depth.Other are identical with embodiment one.
Embodiment four:The difference of present embodiment and embodiment one or two is:Entering in step 4
The round rolling speed of wheel is 42 times/min during row wheel tracking test.Other are identical with embodiment one or two.
Embodiment five:The difference of present embodiment and embodiment one to four is:Described in step 4
Base joint grouting glue deformation area S measuring method be:Base joint grouting glue deformed region after the completion of wheel tracking test covers transparent rice lattice
Paper, the outline of the base joint grouting glue after deformation is depicted in transparent rice ruled paper with pen, base joint grouting glue deformation is calculated to obtain from rice ruled paper
Then area S is labeled to obtain base joint grouting glue deformation area S using taking pictures using CAD.Other and embodiment one
It is identical to four.
Claims (5)
- A kind of 1. method evaluated heat and fill class base joint grouting glue high-temperature behavior, it is characterised in that evaluation heat fills class base joint grouting glue high-temperature behavior Method is carried out according to the following steps:First, road bed data survey:Investigate and obtain the basic data of actual bituminous paving;2nd, rut plate is prepared:The basic data of the actual bituminous paving obtained according to step 1 prepares identical asphalt, It is then placed in mould, using reserved fluted manner, uses rolling method to prepare a size as 300mm × 300mm × 50mm's Cuboid rut plate test specimen, and the centerline on the surface that a size is 300mm × 300mm has a cuboid wherein For groove to simulate the crack of bituminous paving, the length of cuboid groove is 300mm, width and depth and the filling of actual bituminous paving The width of seam fluting is identical with depth, the center line of cuboid groove alongst and the rut plate where cuboid groove The center line of surface of test piece overlaps;The cementation of fissures groove width of described actual bituminous paving is 10mm~20mm, depth 10mm ~20mm;3rd, the cementation of fissures:With base joint grouting glue, the cementation of fissures, the base joint grouting glue after guarantee cooling are higher by rectangular in the cuboid groove described in step 2 Rut plate surface of test piece 2mm~3mm where body groove, the base joint grouting glue after cooling is in the rut plate test specimen where cuboid groove Surface is rectangle and overlapped with the center line of cuboid groove that the width of the base joint grouting glue after cooling is 80mm;4th, wheel tracking test:The complete rut plate test specimen of the cementation of fissures is placed in wheel rutting test machine specimen stage, the temperature for setting testing machine is 60 DEG C, the direction of guarantee wheel traveling and cuboid groove long side direction are vertically and in the midline of cuboid groove long side, car The deformation of base joint grouting glue is observed after rut on-test in 5min, 10min, 20min, 30min and 45min, if some time Base joint grouting glue has occurred and that damage inactivation during node, that is, stops wheel tracking test, and this time is recorded as the out-of-service time, and the out-of-service time gets over Length, the high-temperature behavior of base joint grouting glue are better;If there is no damage inactivation in 45min base joint grouting glues, base joint grouting glue wheel tracking test is calculated Base joint grouting glue deformation length L or base joint grouting glue deformation area S, does 3~5 groups of parallel test and averagesWithDeformation lengthMore The high-temperature behavior of small then base joint grouting glue is better, deformation areaSmaller then high-temperature behavior is better;Wheel tracking test start after 45min, in the exterior lateral area of two long sides of base joint grouting glue before not carrying out wheel tracking test, become Base joint grouting glue distance after shape do not carry out two farthest points of two long sides of base joint grouting glue before wheel tracking test with it is nearer apart from it The distance of two long sides in gap 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, base joint grouting glue two long sides of the base joint grouting glue before wheel tracking test is not carried out 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 2. method evaluated heat and fill class base joint grouting glue high-temperature behavior according to claim 1, it is characterised in that step 1 Described in the basic data of bituminous paving be bituminous pavement top mix type, asphalt mixture gradation, gather materials in compound Species and pitch label.
- A kind of 3. method evaluated heat and fill class base joint grouting glue high-temperature behavior according to claim 1, it is characterised in that step 2 Described in mould be the cuboid of hollow uncovered, the depth of boring is 50mm, and length and width is 300mm, One projection is set among bottom surface internally, the length of projection be 300mm, the width of projection and highly respectively with actual pitch The width of the cementation of fissures fluting on road surface is identical with depth.
- A kind of 4. method evaluated heat and fill class base joint grouting glue high-temperature behavior 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 5. method evaluated heat and fill class base joint grouting glue high-temperature behavior according to claim 1, it is characterised in that step 4 Described in base joint grouting glue deformation area S measuring method be:Base joint grouting glue deformed region after the completion of wheel tracking test covers transparent Rice ruled paper, with pen transparent rice ruled paper depict deformation after base joint grouting glue outline, the cementation of fissures is calculated to obtain from rice ruled paper Then glue deformation area S is labeled to obtain base joint grouting glue deformation area S using taking pictures using CAD.
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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 |
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2016
- 2016-06-17 CN CN201610437453.XA patent/CN106198941B/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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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 |
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