CN100504344C - Low temperature cracking test instrument of asphalt mixture - Google Patents
Low temperature cracking test instrument of asphalt mixture Download PDFInfo
- Publication number
- CN100504344C CN100504344C CNB2005100227228A CN200510022722A CN100504344C CN 100504344 C CN100504344 C CN 100504344C CN B2005100227228 A CNB2005100227228 A CN B2005100227228A CN 200510022722 A CN200510022722 A CN 200510022722A CN 100504344 C CN100504344 C CN 100504344C
- Authority
- CN
- China
- Prior art keywords
- inserted link
- orienting lug
- slip inserted
- anchor clamps
- converter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The present invention relates to a low temperature split test instrument for asphalt mixture. A bracket is provided with a motor provided with a gear, or a hydraulic motor which is communicated with aA low temperature splitting tester of asphalt mixed material is prepared as setting motor with gear wheel on support; connecting environmental box with top installation plate; inserting top of counter hydraulic pump through a guide pipe, a computer, an environmental box connected with an upper mounting plate, and a counter force bracket the upper part of which is inserted into the environmental bo-force support into environmental box; setting top rod guide sleeve on bottom surface of top installation plate; setting top rod, refrigerating mechanism, heating tube, A/D converter, temperature tranx, wherein the lower bottom face of the upper mounting plate is provided with a guide sleeve barrel for a push rod; refrigeration mechanisms are arranged on the bracket and in the environmental box insducer in environmental box; setting right clamping tool and left clamping tool on clamping tool base; setting vertical displacement transducer on its support; lap-joining horizontal displacement tran which a heating pipe, an A/D converter, a temperature sensor and the push rod; the upper end of the push rod and a clamp bottom plate are connected into a whole, and the lower part of the push rod issducer to spacing block and connecting force transducer to bearing support. processed with a rack engaged with the gear; the clamp bottom plate is provided with a left clamp, a right clamp and a vertical displacement sensor bracket provided with a vertical displacement sensor; the left clamp or the right clamp is provided with a horizontal displacement sensor overlapped with a stop block; the counter force bracket is provided with a force sensor, the lower end of which is connected with a bearing frame; the vertical displacement sensor is positioned in the bearing frame. The present invention has the advantages of reasonable design, accurate tested data, high automatization, etc., and can be used for testing the low temperature crack resistance of the asphalt mixture.
Description
Technical field
The invention belongs to the making in road or other similar structures paving, machine, instrument or the utility appliance technical field of reparation usefulness, be specifically related to low temperature cracking test instrument of asphalt mixture.
Background technology
Asphalt is one of material the most frequently used in the highway engineering, is widely used for top course.Bituminous pavement in use owing to be subjected to the combined action of temperature variation in traffic load and the physical environment, tends to cracking occur, and the season that this phenomenon is lower at temperature and range of temperature is bigger is particularly serious.The place, crack stress can occur and concentrates after the pavement cracking, and moisture can infiltrate the further damage that road surface structare layer causes the road surface from these cracks simultaneously.Therefore whether to possess the good low-temperature cracking resistance be the key factor that influences the bituminous pavement permanance to asphalt.
Studies show that the shared ratio of the bitumen content of asphalt, pitch kind, building stones kind and various particle diameter mineral aggregate all can have influence on the cracking resistance of asphalt.In the production practices, building on a large scale before the road surface, need form proportioning, making it reach best effect of prestressed by the material that indoor test of many times be determined asphalt the best.
For estimating the crack resistance at low-temperature of asphalt, in asphalt low temperature cracking test process, requirement loads according to given pace in the diametric(al) of the lower condition lower edge bitumen mixture specimen of temperature, in loading procedure, need to measure asphalt vertical deformation, horizontal distortion and pairing power simultaneously by certain sample frequency, calculate the destruction stiffness modulus according to these measured values, be used to estimate its crack resistance at low-temperature.Owing to test apparatus, the horizontal distortion of asphalt is measured relatively difficulty in test process, thereby influences the test result of this test.
At present, can measure the asphalt crack resistance at low-temperature that different materials is formed indirectly by the multiple indoor test method, wherein the diametral compression test under the asphalt cryogenic conditions is one of them.Compare with other method, the test specimen of low temperature cracking test is shaped as right cylinder, and the sample dimensions that is adopted with other asphalt test of stipulating in the present standard is identical, and forming process is simple, but also can check one against another with other test of asphalt.
Summary of the invention
Technical matters to be solved by this invention is to overcome the shortcoming of the anti-low-temperature cracking test instrument of above-mentioned asphalt, and a kind of reasonable in design, simple in structure, easy to use, low temperature cracking test instrument of asphalt mixture that the data of surveying are accurate, automaticity is high is provided.
Solving the problems of the technologies described above the technical scheme that is adopted is: the oil motor of cogged motor being installed or being linked by conduit and hydraulic pump is set on support, computing machine, the counter-force support in the environmental cabinet is inserted on environmental cabinet that connects with upper mounting plate and top, the bottom surface of upper mounting plate is provided with the push rod pilot sleeve, in support and environmental cabinet, be provided with the refrigeration mechanism that is connected with computing machine by cable, in environmental cabinet, be provided with the heating tube and the A/D converter that are connected with computing machine by cable, the temperature sensor that is connected with A/D converter by cable, in environmental cabinet, be provided with the upper end with anchor clamps base plate connection or be connected as a single entity, the bottom is processed with tooth bar and is sleeved in the push rod pilot sleeve and the push rod of gearing mesh, the anchor clamps base plate is provided with left anchor clamps and the right anchor clamps that are positioned at tested bitumen mixture specimen both sides, limited block, the horizontal displacement sensors that links to each other with A/D converter by cable is arranged on the anchor clamps of homonymy not, the counter-force support is provided with the force transducer by cable is connected with A/D converter and the lower end connects with carrier, the perpendicular displacement sensor stand that the perpendicular displacement sensor is installed is set on the anchor clamps base plate, and the perpendicular displacement sensor is positioned at carrier and is connected with A/D converter by cable.Left anchor clamps of the present invention comprise left orienting lug, be arranged on left side slip inserted link on the left orienting lug, be arranged on the elastic element between left orienting lug and the left slip inserted link.Right anchor clamps of the present invention comprise right orienting lug, be arranged on right side slip inserted link on the right orienting lug, be arranged on the elastic element between right orienting lug and the right slip inserted link.Limited block of the present invention is arranged on the different slip inserted links with horizontal displacement sensors and limited block and horizontal displacement sensors are in contact with one another.
The E font frame that is shaped as connection or is connected as a single entity of left slip inserted link of the present invention, three horizon bars of left side slip inserted link are arranged in the left orienting lug, the pitman shaft of left side slip inserted link is arranged on outside the left side of left orienting lug, horizon bar is provided with elastic element between the pitman shaft of left side slip inserted link and the left side of left orienting lug, the left side overlap joint of the middle horizon bar end of left side slip inserted link and tested bitumen mixture specimen, the end of the preceding horizon bar of left slip inserted link or back horizon bar passes outside the left orienting lug and is provided with limited block.Right slip inserted link of the present invention be shaped as the connection or be connected as a single entity or forward and reverse F glyph framework, two horizon bars of right slip inserted link are arranged in the right orienting lug, the pitman shaft of right slip inserted link is arranged on outside the right side of right orienting lug, horizon bar is provided with elastic element between the pitman shaft of right slip inserted link and the right side of right orienting lug, the middle horizon bar end of right slip inserted link and the right side of tested bitumen mixture specimen overlap joint, the rear end of the pitman shaft of right slip inserted link or front end are provided with the horizontal displacement sensors that passes right orienting lug.
Elastic element of the present invention is the spring that is arranged on the spring base.
Left orienting lug of the present invention and right orienting lug are cylinder.
Refrigeration mechanism of the present invention comprises: be arranged on the refrigerator that is connected with computing machine by cable on the support, be arranged on the outer condenser that links by conduit and refrigerator of environmental cabinet, be arranged on the evaporator that links by conduit and condenser in the environmental cabinet.
The present invention adopts a force transducer is set on jig plate, a horizontal displacement sensors and a perpendicular displacement sensor, force transducer converts the received external power signal that bitumen mixture specimen bore to electric signal and outputs to A/D converter, horizontal displacement sensors with received bitumen mixture specimen under external force the displacement signal of the horizontal distortion that produces convert electric signal to and output to A/D converter, the displacement signal of the received bitumen mixture specimen of the perpendicular displacement sensor vertical deformation that produces under external force converts electric signal to and outputs to A/D converter, A/D converter becomes digital signal to output to computing machine the electrical signal conversion of input, and computing machine carries out size and horizontal shift and the vertical displacement result that the suffered external force of bitumen mixture specimen was calculated and demonstrated to data processing with the digital signal of input.The present invention compares with the anti-low-temperature cracking test instrument of existing asphalt, and instrumentation is simple, the external force that can measure bitumen mixture specimen simultaneously and born and the displacement of the horizontal direction that is produced under the effect of this external force and vertical displacement data.That the present invention has is reasonable in design, simple in structure, easy to use, the data of surveying accurately, the automaticity advantages of higher, can be used for testing the crack resistance at low-temperature of asphalt.
Description of drawings
Fig. 1 is the front view of the embodiment of the invention 1.
Fig. 2 is the A-A cut-open view of Fig. 1.
Embodiment
The present invention is described in more detail below in conjunction with drawings and Examples, but the invention is not restricted to these embodiment.
Embodiment 1
At Fig. 1, in 2, the low temperature cracking test instrument of asphalt mixture of present embodiment is by heating tube 1, environmental cabinet 2, force transducer 3, carrier 4, perpendicular displacement sensor 5, ceiling molding 6, condenser 7, evaporator 8, following press strip 9, refrigerator 10, support 11, computing machine 12, push rod 13, push rod pilot sleeve 14, gear 15, motor 16, upper mounting plate 17, A/D converter 18, anchor clamps base plate 19, left side orienting lug 20, counter-force support 21, left side slip inserted link 22, temperature sensor 24, slip inserted link contact 25, perpendicular displacement sensor stand 26, horizontal displacement sensors 27, right slip inserted link 28, right spring base 29, right spring 30, right orienting lug 31, left spring 32, left spring seat 33 connects formation.
In the bottom of support 11 with screw threads for fastening connector be fixedly connected motor 16 and counter-force support 21 and computing machine 12, with key connecting gear 15 is installed on the output shaft of motor 16, motor 16 is for the invention provides power, the upper end of support 11 is fixedly connected with the screw threads for fastening connector and installs installing plate 17, upper mounting plate 17 upper surfaces are fixedly connected with the screw threads for fastening connector environmental cabinet 2 are installed, lower surface is with the screw threads for fastening connector push rod pilot sleeve 14 that has been fixedly connected, intert in the environmental cabinet 2 on the top of counter-force support 21, right side at support 11 is installed with refrigerator 10 with the screw threads for fastening connector, refrigerator 10 is connected with computing machine 12 by cable, by 10 runnings of computing machine 12 control coolers, be installed with condenser 7 at the right side of environmental cabinet 2 external application screw threads for fastening connector, condenser 7 links by conduit and refrigerator 10.Right side in environmental cabinet 2 is installed with evaporator 8 with the screw threads for fastening connector, and evaporator 8 links by conduit and condenser 7, and refrigerator 10, evaporator 8, condenser 7 connect formation refrigeration mechanism of the present invention, for providing low temperature environment at environmental cabinet 2.At environmental cabinet 2 internal upper parts heating tube 1 is installed, the bottom is equipped with A/D converter 18, heating tube 1 is connected with computing machine 12 by cable, A/D converter 18 is connected with computing machine 12 by cable, power connection or disconnection by computing machine 12 control heating tubes 1, heating tube 1 is for providing hot environment in the environmental cabinet 2, left side mounting temperature sensor 24 in environmental cabinet 2, temperature sensor 24 is connected with A/D converter 18 by cable, temperature sensor 24 converts the temperature signal that receives to electric signal and outputs to A/D converter 18, A/D converter 18 becomes digital signal to output to computing machine 12 electrical signal conversion of input, by power connection or the disconnection of computing machine 12 according to the programmed control refrigerator of setting 10, the power connection or the disconnection of control heating tube 1, temperature in the environmental cabinet 2 can be controlled in-30 ℃～30 ℃ the scope, temperature control precision in the environmental cabinet 2 is ± 0.5 ℃, the physical environment of simulation low temperature season in winter.
The left side of bitumen mixture specimen 23 is equipped with left anchor clamps on anchor clamps base plate 19, the right side is equipped with right anchor clamps.The left anchor clamps of present embodiment are made of left orienting lug 20, left slip inserted link 22, left spring seat 33 and left spring 32 connections, the left side orienting lug 20 usefulness screw threads for fastening connectors left end on anchor clamps base plate 19 that is fixedly connected, left side orienting lug 20 be shaped as rectangular parallelepiped, also can adopt the cylinder of other shape, as four prisms cylinder, hexagonal prism, right cylinder etc.On the orienting lug 20 of a left side left slip inserted link 22 is installed, the shape of left side slip inserted link 22 is that three horizon bars and a pitman shaft weld the E glyph framework that combines as a whole, the preceding horizon bar of left side slip inserted link 22, middle horizon bar and back horizon bar insert in the left orienting lug 20, three horizon bars of left side slip inserted link 22 can be in left orienting lug 20 move left and right on the horizontal direction, between the pitman shaft of left side slip inserted link 22 and left orienting lug 20 left sides, left spring seat 33 is installed, left spring 32 is installed on the by-level bar, left spring 32 is an embodiment of elastic element, also can adopt spring leaf or other elastic elements, left spring 32 can make the left side overlap joint of the right-hand member of by-level bar and bitumen mixture specimen 23, in the end of the back horizon bar of left side slip inserted link 22 slip inserted link contact 25 is installed.
The right anchor clamps of present embodiment are made of right orienting lug 31, right slip inserted link 28, right spring base 29,30 connections of right spring.Right orienting lug 31 usefulness the screw threads for fastening connectors right-hand member on anchor clamps base plate 19 that is fixedly connected, the shape of right orienting lug 31 and left orienting lug 20 is identical.Right slip inserted link 28 is two horizon bars and the pitman shaft welding formation that combines as a whole is turned one's coat to F shape framework, two horizon bars of right slip inserted link 28 insert in the right orienting lug 31, rear end at pitman shaft is equipped with horizontal displacement sensors 27 by thread connection, horizontal displacement sensors 27 parallel with two horizon bars of right slip inserted link 28 and insert in the right orienting lug 31 can be in right orienting lug 31 move left and right on the horizontal direction, the pitman shaft of right slip inserted link 28 is positioned at outside the right side of right orienting lug 31, between the pitman shaft of right slip inserted link 28 and the right side of right orienting lug 31 right spring base 29 is installed, on the middle horizon bar right spring 30 is installed, right spring 30 is an embodiment of elastic element, right spring 30 also can adopt spring leaf or other elastic elements, the right side overlap joint of the left end of horizon bar and bitumen mixture specimen 23 during right spring 30 can make.
In test process, slip inserted link contact 25 is in contact with one another with horizontal displacement sensors 27, horizontal displacement sensors 27 be used to receive bitumen mixture specimen 23 stressed after the displacement signal that produces of distortion in the horizontal direction, horizontal displacement sensors 27 is connected with A/D converter 18 by cable.The horizontal shift conversion of signals of horizontal displacement sensors 27 received bitumen mixture specimens 23 becomes electric signal to output to A/D converter 18, A/D converter 18 becomes digital signal to output to computing machine 12 electrical signal conversion of input, and computing machine 12 carries out data processing with the digital signal of input and calculates and demonstrate deformation result on the horizontal direction of bitumen mixture specimen 23.
On counter-force support 21, be fixedly connected force transducer 3 is installed with the screw threads for fastening connector, force transducer 3 is used to receive the force signal that bitumen mixture specimen 23 is born, force transducer 3 is connected with A/D converter 18 by cable, the lower end of force transducer 3 is connected with carrier 4 with web member, carrier 4 lower ends are processed with aperture, the power that carrier 4 is used to force transducer 3 to transmit on the vertical direction.On anchor clamps base plate 19, be fixedly connected perpendicular displacement sensor stand 26 is installed with the screw threads for fastening connector, perpendicular displacement sensor 5 is installed on the perpendicular displacement sensor stand 26, perpendicular displacement sensor 5 is positioned at carrier 4, the lower end of perpendicular displacement sensor 5 passes the aperture of carrier 4 lower ends, perpendicular displacement sensor 5 is connected with A/D converter 18 by cable, perpendicular displacement sensor 5 is used to receive tested bitumen mixture specimen 23 stressed back vertical displacement signals, during test, between bitumen mixture specimen 23 and perpendicular displacement sensor 5 lower ends, place ceiling molding 6, place press strip 9 down between bitumen mixture specimen 23 and the anchor clamps base plate 19.The force transducer 3 received bitumen mixture specimen 23 vertical force signals that bear convert electric signal to and output to A/D converter 18, perpendicular displacement sensor 5 received bitumen mixture specimen 23 stressed back vertical displacement conversion of signals become electric signal to output to A/D converter 18, A/D converter 18 becomes digital signal to output to computing machine 12 electrical signal conversion of input, and computing machine 12 carries out the vertical force and the vertical displacement digital signal of input data processing and calculates and demonstrate the vertical displacement result of bitumen mixture specimen 23 under the vertical force effect.
In the present embodiment, left side slip inserted link 22 be shaped as three horizon bars and the pitman shaft welding formation E font frame that combines as a whole, the back horizon bar and the middle horizon bar of left side slip inserted link 22 insert in the left orienting lug 20, the end of preceding horizon bar passes outside the left orienting lug 20, three horizon bars of left side slip inserted link 22 can be in left orienting lug 20 move left and right, the end of horizon bar before slip inserted link contact 25 is installed in, the pitman shaft of left side slip inserted link 22 is positioned at outside the left side of left orienting lug 20, on the by-level bar left spring seat 33 and left spring 32 are installed between the pitman shaft of left side slip inserted link 22 and the left side of left orienting lug 20, left spring 32 is overlapped on the right-hand member of by-level bar on the left side of bitumen mixture specimen 23.Right slip inserted link 28 be shaped as two horizon bars and a pitman shaft welding forward and reverse F shape framework of formation that combines as a whole, two horizon bars of right slip inserted link 28 insert in the right orienting lug 31, front end at pitman shaft is equipped with horizontal displacement sensors 27 by thread connection, horizontal displacement sensors 27 parallel with two horizon bars of right slip inserted link 28 and insert in the right orienting lug 31 can be in right orienting lug 31 move left and right on the horizontal direction, the pitman shaft of right slip inserted link 28 is positioned at outside the right side of right orienting lug 31, on the horizon bar right spring base 29 and right spring 30 are installed between the pitman shaft of right slip inserted link 28 and the right side of right orienting lug 31, right spring 30 is overlapped on the left end of middle horizon bar on the right side of bitumen mixture specimen 23.The connecting relation of other parts and parts is identical with embodiment 1.
In the present embodiment, left slip inserted link 22 is that two horizon bars and pitman shaft combine as a whole to constitute and turn one's coat to the F glyph framework, and horizontal displacement sensors 27 is installed on the preceding horizon bar of left slip inserted link 22 by thread connection.Right slip inserted link 28 be shaped as three horizon bars and the pitman shaft formation E font frame that combines as a whole, slip inserted link contact 25 is installed in the end of the preceding horizon bar of right slip inserted link 28.The connecting relation of other parts and parts is identical with embodiment 1.
In the present embodiment, left slip inserted link 22 is that two horizon bars and pitman shaft combine as a whole and constitute the F glyph framework, and horizontal displacement sensors 27 is installed on the back horizon bar of left slip inserted link 22 by thread connection.Right slip inserted link 28 be shaped as three horizon bars and the pitman shaft formation E font frame that combines as a whole, slip inserted link contact 25 is installed in the end of the back horizon bar of right slip inserted link 28.The connecting relation of other parts and parts is identical with embodiment 1.
Embodiment 5
In the present embodiment, the oil motor that is fixedly connected and links by conduit and hydraulic pump with the screw threads for fastening connector on support 11 is equipped with gear 15 with strong the connection on the hydraulic motor output shaft.The connecting relation of other parts and parts is identical with embodiment 1.
Principle of work of the present invention is as follows:
The right cylinder bitumen mixture specimen 23 of forming steadily is placed on the following press strip 9 on the anchor clamps base plate 19, and ceiling molding 6 is placed on the bitumen mixture specimen 23, adjust the middle horizon bar of left slip inserted link 22 and right slip inserted link 28, under the effect of right spring 30, left spring 32, the middle horizon bar of left slip inserted link 22 and right slip inserted link 28 and the left and right sides face of bitumen mixture specimen 23 are connect, and slip inserted link contact 25 and horizontal displacement sensors 27 are contacted with each other.Connect motor 16 power supplys, push rod 13 rises, and when ceiling molding 6 will contact with carrier 4, closes motor 16 power supplys, adjusts perpendicular displacement sensor stand 26, and perpendicular displacement sensor 5 is contacted with ceiling molding 6 by the aperture of carrier 4 lower ends.Connect computing machine 12 and environmental cabinet 2 power supplys, test temperature and constant temperature are set.Behind the constant temperature 1 hour, connect motor 16 power supplys, push rod 13 continues to rise, and under the effect of reaction frame 21, bitumen mixture specimen 23 is loaded, force transducer 3 in the loading procedure, the power that perpendicular displacement sensor 5 and horizontal displacement sensors 27 are subjected to bitumen mixture specimen 23, vertical deformation and horizontal distortion displacement signal convert electric signal to and output to A/D converter 18, A/D converter 18 becomes digital signal to output to computing machine 12 electrical signal conversion of input, computing machine 12 carries out data processing with the vertical force of input and horizontal shift and vertical displacement digital signal and calculates and store and demonstrate horizontal shift and the vertical displacement result of bitumen mixture specimen 23 under the vertical force effect, for the analysis and research of low temperature performance of asphalt.
Claims (4)
1, a kind of low temperature cracking test instrument of asphalt mixture, it is characterized in that: go up setting at support (11) motor (16) of gear (15) or the oil motor that links by conduit and hydraulic pump are installed, computing machine (12), the counter-force support (21) in the environmental cabinet (2) is inserted on environmental cabinet (2) that connects with upper mounting plate (17) and top, the bottom surface of upper mounting plate (17) is provided with push rod pilot sleeve (14), in support (11) and environmental cabinet (2), be provided with the refrigeration mechanism that is connected with computing machine (12) by cable, in environmental cabinet (2), be provided with the heating tube (1) and the A/D converter (18) that are connected with computing machine (12) by cable, the temperature sensor (24) that is connected with A/D converter (18) by cable, being provided with the upper end in environmental cabinet (2) joins or is connected as a single entity with anchor clamps base plate (19), the bottom is processed with tooth bar and is sleeved on the push rod (13) that meshes with gear (15) in the push rod pilot sleeve (14), anchor clamps base plate (19) is provided with left anchor clamps and the right anchor clamps that are positioned at tested bitumen mixture specimen (23) both sides, limited block, the horizontal displacement sensors (27) that links to each other with A/D converter (18) by cable is arranged on the anchor clamps of homonymy not, counter-force support (21) is provided with the force transducer (3) by cable is connected with A/D converter (18) and the lower end connects with carrier (4), go up the perpendicular displacement sensor stand (26) that setting is equipped with perpendicular displacement sensor (5) at anchor clamps base plate (19), perpendicular displacement sensor (5) is positioned at carrier (4) and is connected with A/D converter (18) by cable; Said left anchor clamps comprise left orienting lug (20), be arranged on left side slip inserted link (22) on the left orienting lug (20), be arranged on the elastic element between left orienting lug (20) and the left slip inserted link (22); Said right anchor clamps comprise right orienting lug (31), be arranged on right side slip inserted link (28) on the right orienting lug (31), be arranged on the elastic element between right orienting lug (31) and the right slip inserted link (28); Said limited block is arranged on the different slip inserted links with horizontal displacement sensors (27) and limited block and horizontal displacement sensors (27) are in contact with one another.
2, according to the described low temperature cracking test instrument of asphalt mixture of claim 1, it is characterized in that: the E font frame that is shaped as connection or is connected as a single entity of said left slip inserted link (22), three horizon bars of left side slip inserted link (22) are arranged in the left orienting lug (20), the pitman shaft of left side slip inserted link (22) is arranged on outside the left side of left orienting lug (20), horizon bar is provided with elastic element between the pitman shaft of left side slip inserted link (22) and the left side of left orienting lug (20), the middle horizon bar end of left side slip inserted link (22) and the left side of tested bitumen mixture specimen (23) overlap joint, the end of the preceding horizon bar of left slip inserted link (22) or back horizon bar passes outside the left orienting lug (20) and is provided with limited block; Said right slip inserted link (28) be shaped as the connection or be connected as a single entity or forward and reverse F glyph framework, two horizon bars of right slip inserted link (28) are arranged in the right orienting lug (31), the pitman shaft of right slip inserted link (28) is arranged on outside the right side of right orienting lug (31), horizon bar is provided with elastic element between the pitman shaft of right slip inserted link (28) and the right side of right orienting lug (31), the middle horizon bar end of right slip inserted link (28) and the right side of tested bitumen mixture specimen (23) overlap joint, the rear end of the pitman shaft of right slip inserted link (28) or front end are provided with the horizontal displacement sensors (27) that passes right orienting lug (31).
3, according to the described low temperature cracking test instrument of asphalt mixture of claim 2, it is characterized in that: said elastic element is for being arranged on the spring (30,32) on the spring base (29,33).
4, according to claim 1 or 2 described low temperature cracking test instrument of asphalt mixture, it is characterized in that: said left orienting lug (20) and right orienting lug (31) are cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100227228A CN100504344C (en) | 2005-12-26 | 2005-12-26 | Low temperature cracking test instrument of asphalt mixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100227228A CN100504344C (en) | 2005-12-26 | 2005-12-26 | Low temperature cracking test instrument of asphalt mixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1793829A CN1793829A (en) | 2006-06-28 |
| CN100504344C true CN100504344C (en) | 2009-06-24 |
Family
ID=36805400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100227228A Expired - Fee Related CN100504344C (en) | 2005-12-26 | 2005-12-26 | Low temperature cracking test instrument of asphalt mixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100504344C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435495A (en) * | 2011-12-08 | 2012-05-02 | 华南理工大学 | Fixture and test method for two-way alternating split test of road material cylinder specimen |
| CN102841021A (en) * | 2012-09-07 | 2012-12-26 | 郑州大学 | Low-temperature splitting tester for fiber asphalt mixture |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101344517B (en) * | 2008-04-23 | 2011-12-14 | 张宏超 | Appraisement method for asphalt mixture hydrosphere steadiness test |
| CN101936851B (en) * | 2010-09-02 | 2011-07-13 | 中国科学院武汉岩土力学研究所 | Specimen clamp for measuring tensile strength of rock by splitting method |
| CN103471909B (en) * | 2013-10-10 | 2015-07-15 | 山东科技大学 | Test auxiliary device for testing tensile strength of rock through Brazilian test |
| CN107356451A (en) * | 2016-05-09 | 2017-11-17 | 中煤科工集团武汉设计研究院有限公司 | The anti-blocking slurry sampler of variable |
| CN106644723A (en) * | 2016-12-30 | 2017-05-10 | 三峡大学 | Freezing-thawing environment-based concrete splitting tension testing device |
| CN109655603B (en) * | 2019-01-17 | 2021-06-29 | 合肥工业大学 | Self-collecting clamp for electromagnetic self-healing after splitting of asphalt mixture test piece |
-
2005
- 2005-12-26 CN CNB2005100227228A patent/CN100504344C/en not_active Expired - Fee Related
Non-Patent Citations (2)
| Title |
|---|
| 用劈裂法进行沥青混合料蠕变及低频疲劳性能的试验研究. 张肖宁，沈金安.公路交通科技，第3期. 1988 |
| 用劈裂法进行沥青混合料蠕变及低频疲劳性能的试验研究. 张肖宁，沈金安.公路交通科技，第3期. 1988 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435495A (en) * | 2011-12-08 | 2012-05-02 | 华南理工大学 | Fixture and test method for two-way alternating split test of road material cylinder specimen |
| CN102435495B (en) * | 2011-12-08 | 2013-04-10 | 华南理工大学 | Fixture and test method for two-way alternating split test of road material cylinder specimen |
| CN102841021A (en) * | 2012-09-07 | 2012-12-26 | 郑州大学 | Low-temperature splitting tester for fiber asphalt mixture |
| CN102841021B (en) * | 2012-09-07 | 2014-10-08 | 郑州大学 | Low-temperature splitting tester for fiber asphalt mixture |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1793829A (en) | 2006-06-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100504344C (en) | Low temperature cracking test instrument of asphalt mixture | |
| CN105784505B (en) | II type fracture toughness test method | |
| CN101620054B (en) | Pavement structure and testing device for bridge deck pavement bonding interface shearing-resistance characteristic | |
| CN102879271B (en) | Method for detecting bituminous mortar damage self-healing performance | |
| CN103245542B (en) | Test method of compound cracking of asphalt mixture | |
| CN100547401C (en) | Test instrument for shrinking and deforming of road surface material | |
| CN105445119A (en) | Device and method for testing torsion resistance and shear performance of bituminous mixture | |
| CN104897477B (en) | A kind of pitch class Material Creep Test device | |
| CN106989995A (en) | A kind of adjustable Rock And Soil of lateral spacing condition vertically compresses ancillary test device | |
| CN102879327B (en) | Device and method for estimating influence of surface lines on adhesion between asphalt and aggregates | |
| CN204101388U (en) | A kind of asphalt torsional shear test device | |
| CN102841021A (en) | Low-temperature splitting tester for fiber asphalt mixture | |
| CN104913984A (en) | Pavement material double-layer cylinder specimen compression and torsion combination fatigue test method and device | |
| WO2021135162A1 (en) | Ground-push-type shear strength test device and measurement method therefor | |
| CN2852105Y (en) | Low temperature split test instrument for asphalt mixture | |
| CN104458398A (en) | Semi-rigid base asphalt pavement reflection crack testing device | |
| CN103234834B (en) | Loading device used in road seam filling material low-temperature performance test | |
| CN205120510U (en) | Bituminous mixture torsional mode shearing mechanism | |
| CN102435509A (en) | Test device and test method for measuring shearing strength characteristics on different shearing surfaces | |
| CN201637641U (en) | Freezing-thawing circulated coarse-grained soil shearing test device | |
| CN207215587U (en) | A kind of adjustable Rock And Soil of lateral spacing condition vertically compresses ancillary test device | |
| CN1963504A (en) | Determining apparatus for contraction coefficient of two-box road making materials | |
| CN202494629U (en) | Surfacing interlayer adhesion strength tester | |
| CN201075069Y (en) | Universal material testing machine | |
| CN202814795U (en) | Detection device for self-healing of bituminous mortar |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: SHAANXI HIGH-SPEED MECHANIZATION ENGINEERING CO., LTD. Assignor: Changan Univ. Contract record no.: 2011610000170 Denomination of invention: Low temperature cracking test instrument of asphalt mixture Granted publication date: 20090624 License type: Exclusive License Open date: 20060628 Record date: 20110907 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090624 Termination date: 20141226 |
|
| EXPY | Termination of patent right or utility model |