CN103323301A - Mould for realization of multilayer asphalt mixture integral-body anti-rutting performance test - Google Patents
Mould for realization of multilayer asphalt mixture integral-body anti-rutting performance test Download PDFInfo
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- CN103323301A CN103323301A CN2013101793082A CN201310179308A CN103323301A CN 103323301 A CN103323301 A CN 103323301A CN 2013101793082 A CN2013101793082 A CN 2013101793082A CN 201310179308 A CN201310179308 A CN 201310179308A CN 103323301 A CN103323301 A CN 103323301A
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Abstract
The invention discloses a mould for realization of multilayer asphalt mixture integral-body anti-rutting performance test. The mould comprises a bottom plate (5) and more than two layers of side moulds. The layer number of a specimen can be determined according to conditions of simulation of pavement structure, and each layer of the side mould has a height of 4-10 cm. A four-layer side mould comprises, from bottom to top, the bottom plate (5) and four layers of the side moulds, corresponding positions around each layer of the side mould are provided with through holes and screw holes, and the through holes and screw holes of same serial numbers are matching in one-to-one correspondence. The through holes of the upper layer of adjacent two layers are fixedly connected with the screw holes of the lower layer of the adjacent two layers through inner hexagon screws. Each layer of the side mould in the mould is not fixed and is convenient to dismount, and different asphalt mixtures can be prepared through layered molding, so that the defect that the prior art mould can only carry out single structure layer asphalt mixture rutting test can be improved and the purpose of the multilayer asphalt mixture integral-body anti-rutting performance test can be achieved. The defects that the prior art side moulds are easy to get stuck in carving grooves, the prior art mould can cause inconvenience for directions turning of a specimen in two opposite directions of grinding wheel molding specimen processes, and the prior art mould is not convenient to demould, can be overcome.
Description
Technical field
The invention belongs to the shop experiment Instrument technology field that Asphalt Pavement Performance is estimated, be specifically related to a kind of mould that can realize the whole anti-rut performance test of multilayer asphalt.
Background technology
China's rapid development of economy, driving the magnitude of traffic flow increases significantly, the traffic channelization of highway, Class I highway, and the situation of overload heavy duty grows in intensity, in addition summer rare lasting high temperature, the rut problem has become affects the outstanding problem that highway in China develops in a healthy way.
The existence of rut has seriously affected the flatness on road surface, makes wheel path brea bed reduced thickness, has reduced the bulk strength of surface layer and pavement structure, also further causes thus other pavement destructions such as crack, hole groove; Rainy day time channel table impeded drainage can be caused in the highway section that has larger rut groove, so that the anti-slide performance on road surface descends, vehicle direction when overtaking other vehicles or change the track is difficult to control, has affected the stability of trailer reversing; The safety that affects high speed traveling because the existence of ponding, vehicle are easy to float the cunning.In addition, can be covered by ice and snow at cold district rut groove, also so that the anti-slide performance on road surface reduces serious threat traffic safety, and the existence of rut shortened the serviceable life on road surface, reduced the service quality of road.Therefore, correctly estimate the rut situation of bituminous pavement significant for effective control rut disease.
For this reason, propose in China's " highway engineering pitch and Asphalt Mixture Experiment rules " to adopt asphalt mixture in track test to estimate the anti-rut performance of asphalt.Rut test piece adopts the moulding of rolling forming machine, long 300mm, wide 300mm, thick 50～100mm.What but this method obtained only is the anti-rut performance of certain asphalt pavement material, can't react the anti-rut performance of whole asphalt pavement structure.Also therefore such phenomenon occurred, the anti-rut performance of each brea bed satisfies the dynamic stability index request of stipulating in the wheel tracking test in the pavement structure, but more serious rut disease still occurred in the actual road surface.Tracing it to its cause, mainly be that what to test in the actual road surface is the anti-rut performance of whole pavement structure, and the reaction of traditional wheel tracking test method only is the anti-rut performance of certain asphalt pavement material.
Some researchists have carried out the research of the anti-rut performance of asphalt pavement structure for this reason, and double-layer structure, three-decker are arranged.The die trial of multiple layer combination structure asphalt rut is achieved in that die trial is made of base plate and four side plates, and four side plates are installed on the base plate 5, forms the container of a carrying asphalt.All exceed other two side plates rolling two side forms that direction arranges along wheel tracking test, and before and after it two sections cutting is set respectively, the cutting on two side plates is mutually corresponding.Be provided with respectively two side plates on the perpendicular direction direction rolling with wheel tracking test, these two side plate height are selected according to the height of every layer of asphalt, are fixed between two other side plate along cutting.
But the die trial of this multiple layer combination structure asphalt rut exists some defectives: the one, and side plate is easy to be stuck in the cutting, makes troubles to practical operation.The 2nd, this die trial is made troubles to the operation of turning the test specimen direction in two reverse direction roller-compaction processes of regulation and stipulation.In the rolling moulding, need to roll 2 in a direction first and come and go in the standard; Off-load; Lifting rolling wheel, with the test specimen reverses its direction; Adding identical load rolls till the Marshall standard packing 100% ± 1% again.The die trial of this multiple layer combination structure asphalt rut all exceeds other two side plates owing to rolling two side plates that arrange on the direction along wheel tracking test, so make troubles for the operation of turning the test specimen direction.The 3rd, two side plates of this die trial all exceed other two side plates, and make troubles to the demoulding by cutting and fixing in four limits.
Summary of the invention
The present invention easily is stuck in the cutting in order to solve the existing mold side plate exactly, and existing mold is given and to be turned the test specimen direction in two reverse direction rolling shaping test piece processes and make troubles, and the defective of making troubles to the demoulding.Thereby a kind of mould that can realize the whole anti-rut performance test of multilayer asphalt is proposed, with the purpose that reaches simple in structure, easy to use, production cost is low, easy to utilize.
Technical scheme of the present invention:
A kind of mould that can realize the whole anti-rut performance test of multilayer asphalt comprises base plate and the side form more than 2 layers; The height of the number of plies of test specimen, each layer side form is decided according to the situation of simulated roadway structure, and the height of every layer of side form is 4～10cm;
As a kind of situation wherein, the situation of 4 layers of side form is specific as follows: from the bottom to top, comprise base plate, ground floor side form, second layer side form, the 3rd layer of side form, the 4th layer of side form; Base plate is long 32.8cm, wide 32.8cm, the rectangular parallelepiped of high 0.5cm; The xsect of each layer side form is " returning " font, and the outside is square, and the length of side is 32.8cm, and the inboard is square, and the length of side is 30cm; Four limits of every layer of side form are demountable part, are fixedly connected with by the side direction screw on four angles;
Base plate and each layer side form be the position of correspondence all around, is provided with the via hole, the threaded hole that are used for assembling of reservation; On four limits of plate upper surface, be provided with threaded hole No. 1 to No. 6; The ground floor side form is provided with via hole No. 1 to No. 6, and four limits on surface are provided with threaded hole No. 7 to No. 12 thereon; Second layer side form is provided with via hole No. 7 to No. 12, and four limits on surface are provided with threaded hole No. 13 to No. 18 thereon; The 3rd floor side form is provided with via hole No. 13 to No. 18, and four limits on surface are provided with threaded hole No. 19 to No. 24 thereon; The 4th floor side form is provided with via hole No. 19 to No. 24;
The via hole of identical numbering and threaded hole, corresponding supporting one by one; Via hole on the ground floor side form, the threaded hole with corresponding on the base plate is fixedly connected with by socket head cap screw; Second layer side form and ground floor side form, the 3rd layer of side form and second layer side form, the 4th layer of side form and the 3rd layer of side form are fixedly connected with same method.
Beneficial effect of the present invention:
1. each layer side form do not fixed, for convenience detach, can the different asphalt of layering moulding, thus the defective that existing wheel tracking test mould can only carry out single structure layer pitch mixing wheel tracking test improved, reached the purpose of carrying out the whole anti-rut performance test of multilayer asphalt;
2. overcome the multiple layer combination structure Asphalt Mixture Experiment die side plate that proposes in the former studies and easily be stuck in defective in the cutting;
3. overcome the multiple layer combination structure Asphalt Mixture Experiment mould that proposes in the former studies inconvenient to the operation that both direction rolling shaping test piece brings.
4. overcome the inconvenience that the multiple layer combination structure Asphalt Mixture Experiment mould that proposes in the former studies brings to the demoulding.No matter four limits of which layer side form can be for convenience detach.
5. simple in structure, easy to use, production cost is low, and is easy to utilize.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is combination schematic diagram of the present invention;
Fig. 3 is the floor map of base plate;
Fig. 4 is the floor map of ground floor side form;
Fig. 5 is the floor map of second layer side form;
Fig. 6 is the floor map of the 3rd layer of side form;
Fig. 7 is the floor map of the 4th layer of side form.
Each mark of accompanying drawing represents respectively:
1-ground floor side form;
2-second layer side form;
The 3rd layer of side form of 3-;
The 4th layer of side form of 4-;
The 5-base plate;
On the L1-threaded hole 1(base plate);
On the L2-threaded hole 2(base plate);
On the L3-threaded hole 3(base plate);
On the L4-threaded hole 4(base plate);
On the L5-threaded hole 5(base plate);
On the L6-threaded hole 6(base plate);
On the L7-threaded hole 7(ground floor side form);
On the L8-threaded hole 8(ground floor side form);
On the L9-threaded hole 9(ground floor side form);
On the L10-threaded hole 10(ground floor side form);
On the L11-threaded hole 11(ground floor side form);
On the L12-threaded hole 12(ground floor side form);
On the L13-threaded hole 13(second layer side form);
On the L14-threaded hole 14(second layer side form);
On the L15-threaded hole 15(second layer side form);
On the L16-threaded hole 16(second layer side form);
On the L17-threaded hole 17(second layer side form);
On the L18-threaded hole 18(second layer side form);
On the 3rd layer of side form of L19-threaded hole 19();
On the 3rd layer of side form of L20-threaded hole 20();
On the 3rd layer of side form of L21-threaded hole 21();
On the 3rd layer of side form of L22-threaded hole 22();
On the 3rd layer of side form of L23-threaded hole 23();
On the 3rd layer of side form of L24-threaded hole 24();
On the G1-via hole 1(ground floor side form);
On the G2-via hole 2(ground floor side form);
On the G3-via hole 3(ground floor side form);
On the G4-via hole 4(ground floor side form);
On the G5-via hole 5(ground floor side form);
On the G6-via hole 6(ground floor side form);
On the G7-via hole 7(second layer side form);
On the G8-via hole 8(second layer side form);
On the G9-via hole 9(second layer side form);
On the G10-via hole 10(second layer side form);
On the G11-via hole 11(second layer side form)
On the G12-via hole 12(second layer side form);
On the 3rd layer of side form of G13-via hole 13();
On the 3rd layer of side form of G14-via hole 14();
On the 3rd layer of side form of G15-via hole 15();
On the 3rd layer of side form of G16-via hole 16();
On the 3rd layer of side form of G17-via hole 17();
On the 3rd layer of side form of G18-via hole 18();
On the 4th layer of side form of G19-via hole 19();
On the 4th layer of side form of G20-via hole 20();
On the 4th layer of side form of G21-via hole 21();
On the 4th layer of side form of G22-via hole 22();
On the 4th layer of side form of G23-via hole 23();
On the 4th layer of side form of G24-via hole 24().
Embodiment
A kind of mould that can realize the whole anti-rut performance test of multilayer asphalt comprises base plate and the side form more than 2 layers; The height of the number of plies of test specimen, each layer side form is decided according to the situation of simulated roadway structure, and the height of every layer of side form is 4～10cm;
As a kind of situation wherein, the situation of 4 layers of side form is specific as follows: from the bottom to top, comprise base plate, ground floor side form, second layer side form, the 3rd layer of side form, the 4th layer of side form; Base plate is long 32.8cm, wide 32.8cm, the rectangular parallelepiped of high 0.5cm; The xsect of each layer side form is " returning " font, and the outside is square, and the length of side is 32.8cm, and the inboard is square, and the length of side is 30cm; Four limits of every layer of side form are demountable part, are fixedly connected with by the side direction screw on four angles;
Base plate and each layer side form be the position of correspondence all around, is provided with the via hole, the threaded hole that are used for assembling of reservation; On four limits of plate upper surface, be provided with threaded hole No. 1 to No. 6; The ground floor side form is provided with via hole No. 1 to No. 6, and four limits on surface are provided with threaded hole No. 7 to No. 12 thereon; Second layer side form is provided with via hole No. 7 to No. 12, and four limits on surface are provided with threaded hole No. 13 to No. 18 thereon; The 3rd floor side form is provided with via hole No. 13 to No. 18, and four limits on surface are provided with threaded hole No. 19 to No. 24 thereon; The 4th floor side form is provided with via hole No. 19 to No. 24;
The via hole of identical numbering and threaded hole, corresponding supporting one by one; Via hole on the ground floor side form, the threaded hole with corresponding on the base plate is fixedly connected with by socket head cap screw; Second layer side form and ground floor side form, the 3rd layer of side form and second layer side form, the 4th layer of side form and the 3rd layer of side form are fixedly connected with same method.
Below in conjunction with accompanying drawing, workflow of the present invention is further described.
As depicted in figs. 1 and 2, a kind of mould that can realize the whole anti-rut performance test of multilayer asphalt, comprise base plate, ground floor side form, second layer side form, the 3rd layer of side form, the 4th layer of side form (situation of more multi-layered side form, slightly).
They are according to being assembled by the mode on lower the reaching, for ease of assembly corresponding position is reserved around them respectively via hole, threaded hole.
As shown in Figure 3, base plate is long 32.8cm, wide 32.8cm, and the rectangular parallelepiped of high 0.5cm has been reserved six threaded holes on four limits on surface thereon, is respectively threaded hole 1, threaded hole 2, threaded hole 3, threaded hole 4, threaded hole 5, threaded hole 6.
As shown in Figure 4, the plane of ground floor side form is the square of outside length of side 32.8cm, the square of inboard length of side 30cm, six via holes have been reserved on its four limits, respectively via hole 1, via hole 2, via hole 3, via hole 4, via hole 5, via hole 6, having reserved six threaded holes on four limits on surface thereon, is respectively threaded hole 7, threaded hole 8, threaded hole 9, threaded hole 10, threaded hole 11, threaded hole 12.
As shown in Figure 5, the plane of second layer side form is the square of outside length of side 32.8cm, the square of inboard length of side 30cm, six via holes have been reserved on its four limits, respectively via hole 7, via hole 8, via hole 9, via hole 10, via hole 11, via hole 12, having reserved six threaded holes on four limits on surface thereon, is respectively threaded hole 13, threaded hole 14, threaded hole 15, threaded hole 16, threaded hole 17, threaded hole 18.
As shown in Figure 6, the plane of the 3rd layer of side form is the square of outside length of side 32.8cm, the square of inboard length of side 30cm, six via holes have been reserved on its four limits, respectively via hole 13, via hole 14, via hole 15, via hole 16, via hole 17, via hole 18, six threaded holes have been reserved on four limits on surface thereon, are respectively threaded hole 19, threaded hole 20, threaded hole 21, threaded hole 22, threaded hole 23, threaded hole 24.
As shown in Figure 7, the plane of the 4th layer of side form is the square of outside length of side 32.8cm, and the square of inboard length of side 30cm has been reserved six via holes on its four limits, is respectively via hole 19, via hole 20, via hole 21, via hole 22, via hole 23, via hole 24.
The ground floor side form is installed on the base plate, adopt socket head cap screw to pass via hole 1, via hole 2, via hole 3, via hole 4, via hole 5, the via hole 6 of ground floor side form, be fixed on threaded hole 1, threaded hole 2, threaded hole 3, threaded hole 4, threaded hole 5, threaded hole 6 on the base plate.Form the container of a carrying ground floor asphalt, so just can be according to the method roller-compaction ground floor test specimen of standard.
Then on ground floor side form surface second layer side form is installed, the employing socket head cap screw passes via hole 7, via hole 8, via hole 9, via hole 10, via hole 11, the via hole 12 on the second layer side form, is fixed on threaded hole 7, threaded hole 8, threaded hole 9, threaded hole 10, threaded hole 11, threaded hole 12 on the ground floor side form.Form the container of a carrying second layer asphalt, so just can be according to the method roller-compaction second layer test specimen of standard.
Next continue to install on the surface of second layer side form the 3rd layer of side form, adopt hex screw to pass the 3rd layer of via hole 13, via hole 14, via hole 15, via hole 16, via hole 17, the via hole 18 on the side form, be fixed on threaded hole 13, threaded hole 14, threaded hole 15, threaded hole 16, threaded hole 17, threaded hole 18 on the second layer side form.Form the container of the 3rd layer of asphalt of a carrying, so just can be according to the 3rd layer of test specimen of method roller-compaction of standard.
Next continue to install on the surface of the 3rd layer of die trial the 4th layer of side form, adopt hex screw to pass the 4th layer of via hole 19, via hole 20, via hole 21, via hole 22, via hole 23, the via hole 24 on the side form, be fixed on the 3rd layer of threaded hole 19, threaded hole 20, threaded hole 21, threaded hole 22, threaded hole 23, the threaded hole 24 on the side form.The upper surface of such the 3rd layer of bitumen mixture specimen and the 4th layer of side form have just formed a container that carries asphalt, same the 4th layer of test specimen of method roller-compaction according to standard.
By that analogy, can also continue to increase the number of plies of die trial, be not limited to 4 layers of a kind of situation.
The height of the number of plies of test specimen and each layer side form is according to the situation of the pavement structure of simulation and fixed.The height of every layer of side form is between 4～10cm, when the thickness of bituminous pavement single structure layer during greater than 10cm, must the layering moulding, and mainly be because forming machine can't guarantee that individual layer asphalt height is greater than the compactness of 10cm test specimen.Need to prove in addition, four limits of each layer side form are fixing by the side direction screw on four angles, and four limits are demountable.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that implementation of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (1)
1. the mould that can realize the whole anti-rut performance test of multilayer asphalt is characterized in that,
Comprise base plate (5) and the side form more than 2 layers; The height of the number of plies of test specimen, each layer side form is decided according to the situation of simulated roadway structure, and the height of every layer of side form is 4～10cm;
As a kind of situation wherein, the situation of 4 layers of side form is specific as follows:
From the bottom to top, comprise base plate (5), ground floor side form (1), second layer side form (2), the 3rd layer of side form (3), the 4th layer of side form (4);
Base plate (5) is long 32.8cm, wide 32.8cm, the rectangular parallelepiped of high 0.5cm;
The xsect of each layer side form is " returning " font, and the outside is square, and the length of side is 32.8cm, and the inboard is square, and the length of side is 30cm; Four limits of every layer of side form are demountable part, are fixedly connected with by the side direction screw on four angles;
Base plate (5) and each layer side form be the position of correspondence all around, is provided with the via hole, the threaded hole that are used for assembling of reservation;
On four limits of base plate (5) upper surface, be provided with threaded hole No. 1 to No. 6;
Ground floor side form (1) is provided with via hole No. 1 to No. 6, and four limits on surface are provided with threaded hole No. 7 to No. 12 thereon;
Second layer side form (2) is provided with via hole No. 7 to No. 12, and four limits on surface are provided with threaded hole No. 13 to No. 18 thereon;
The 3rd floor side form (3) is provided with via hole No. 13 to No. 18, and four limits on surface are provided with threaded hole No. 19 to No. 24 thereon;
The 4th floor side form (4) is provided with via hole No. 19 to No. 24;
The via hole of identical numbering and threaded hole, corresponding supporting one by one; Via hole on the ground floor side form (1) with the upper corresponding threaded hole of base plate (5), is fixedly connected with by socket head cap screw; Second layer side form (2) and ground floor side form (1), the 3rd layer of side form (3) and second layer side form (2), the 4th layer of side form (4) and the 3rd layer of side form (3) are fixedly connected with same method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101793082A CN103323301A (en) | 2013-05-15 | 2013-05-15 | Mould for realization of multilayer asphalt mixture integral-body anti-rutting performance test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101793082A CN103323301A (en) | 2013-05-15 | 2013-05-15 | Mould for realization of multilayer asphalt mixture integral-body anti-rutting performance test |
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| CN103323301A true CN103323301A (en) | 2013-09-25 |
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| CN2013101793082A Pending CN103323301A (en) | 2013-05-15 | 2013-05-15 | Mould for realization of multilayer asphalt mixture integral-body anti-rutting performance test |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241699A (en) * | 2015-09-25 | 2016-01-13 | 哈尔滨工业大学 | Asphalt small-beam specimen preparation mold and asphalt small-beam specimen preparation method |
| CN106442951A (en) * | 2016-10-13 | 2017-02-22 | 沈阳建筑大学 | Combined multifunctional track plate device |
| CN113155961A (en) * | 2021-03-18 | 2021-07-23 | 东南大学 | Combined type crack-containing road model for Rayleigh wave detection |
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| CN201965063U (en) * | 2011-01-12 | 2011-09-07 | 长安大学 | Multi-layer composite structure asphalt mixture rutting test mould |
| CN202631352U (en) * | 2012-06-08 | 2012-12-26 | 金陵科技学院 | Multifunctional bituminous mixture track contrast test mold |
| CN103091179A (en) * | 2013-01-10 | 2013-05-08 | 长安大学 | Interlamination shear-resisting track test mould of large longitudinal-slope asphalt pavement |
| CN203241277U (en) * | 2013-05-15 | 2013-10-16 | 山西省交通科学研究院 | Mold capable of realizing integral track-resistance test of multilayer asphalt mixture |
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2013
- 2013-05-15 CN CN2013101793082A patent/CN103323301A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201965063U (en) * | 2011-01-12 | 2011-09-07 | 长安大学 | Multi-layer composite structure asphalt mixture rutting test mould |
| CN202631352U (en) * | 2012-06-08 | 2012-12-26 | 金陵科技学院 | Multifunctional bituminous mixture track contrast test mold |
| CN103091179A (en) * | 2013-01-10 | 2013-05-08 | 长安大学 | Interlamination shear-resisting track test mould of large longitudinal-slope asphalt pavement |
| CN203241277U (en) * | 2013-05-15 | 2013-10-16 | 山西省交通科学研究院 | Mold capable of realizing integral track-resistance test of multilayer asphalt mixture |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241699A (en) * | 2015-09-25 | 2016-01-13 | 哈尔滨工业大学 | Asphalt small-beam specimen preparation mold and asphalt small-beam specimen preparation method |
| CN105241699B (en) * | 2015-09-25 | 2017-11-03 | 哈尔滨工业大学 | A kind of preparation method of pitch girder test material preparation mould and pitch girder test specimen |
| CN106442951A (en) * | 2016-10-13 | 2017-02-22 | 沈阳建筑大学 | Combined multifunctional track plate device |
| CN113155961A (en) * | 2021-03-18 | 2021-07-23 | 东南大学 | Combined type crack-containing road model for Rayleigh wave detection |
| CN113155961B (en) * | 2021-03-18 | 2022-04-29 | 东南大学 | Combined type crack-containing road model for Rayleigh wave detection |
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Application publication date: 20130925 |