CN205103192U - Device of test modified asphalt stability - Google Patents
Device of test modified asphalt stability Download PDFInfo
- Publication number
- CN205103192U CN205103192U CN201520905997.5U CN201520905997U CN205103192U CN 205103192 U CN205103192 U CN 205103192U CN 201520905997 U CN201520905997 U CN 201520905997U CN 205103192 U CN205103192 U CN 205103192U
- Authority
- CN
- China
- Prior art keywords
- sample ring
- stull
- test
- test specimen
- specimen tube
- 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
Landscapes
- Working-Up Tar And Pitch (AREA)
Abstract
The utility model discloses a device of test modified asphalt stability, including stand, platform, first sample ring, second sample ring, test specimen tube, first stull, second stull, top cap and base, the stand is erect and is fixed in on the platform, the base is located the platform, first sample ring and second sample ring cup joint respectively in the upper and lower both ends of test specimen tube, the top cap is located the open -top department of first sample ring, the lower extreme of second sample ring cup joints on the base, the one end of first stull is fixed in the junction of first sample ring and test specimen tube, the one end of second stull is fixed in the junction of second sample ring and test specimen tube, the other end of first stull and the other end of second stull all are connected with the stand, first sample ring, second sample ring and the equal vertical distribution of test specimen tube. The utility model discloses measurement accuracy is higher to test efficiency is higher, and simple structure is convenient for operate simultaneously, and the cost is lower, can used repeatedly.
Description
Technical field
The utility model belongs to road engineering test field, relates to a kind of device testing modified bitumen stability.
Background technology
Polymer modified asphalt is in matrix pitch, add certain proportion SBS modifier as SBS modified bitumen, makes it be dispersed in pitch by methods such as shearing, stirrings, forms SBS intermingling material.In addition, because having good anti-deforming performance, endurance and crack resistance at low-temperature, can also digest a large amount of waste tires, absorption noise that auto industry produces, waste rubber powder modified asphalt is also Study on Asphalt Modified focus always.Rubber powder is mixed high temperature matrix pitch and carries out Keep agitation by the wet method high viscosity waste rubber powder modified asphalt of extensive employing exactly, and after ensureing the enough reaction time, the lightweight oil content that rubber powder absorbs in pitch melts swollen, thus improves viscosity and the stiffness of asphaltic binder.High viscosity waste rubber powder modified asphalt belongs in fact rubber-pitch two-phase composite material, because rubber powder is comparatively thick, rubber powder and the comparatively large and dispersing technology of asphalt density difference be unfavorable for the two formed stablize miscible, therefore the hot storing temperature of waste rubber powder modified asphalt binder is very poor, very easily produces segregation phenomenon.In like manner, when high temperature stores for a long time, polymer modified asphalt also easily produces the technical feature that segregation phenomenon affects compound because the two compatibility is poor.
The evaluation of current China to polymkeric substance, waste rubber powder modified asphalt hot storage stability carries out with reference to JTGE20-2011T0661-2011 modified bitumen isolation test.This test adopts aluminum pipe sampling, the aluminum pipe freezing 4h again that sample is housed is taken out after baking oven leaves standstill 48h, then being cut by aluminum pipe is artificially 3 sections, gets two sections and reheats rear filling mould and carry out softening point test, with upper-lower section sample softening point difference characterize polymers modified bitumen segregation degree.There is following defect in T0661-2011 test method: the first, and containing sample pipe is disposable aluminum pipe, and it can not reuse, and causes the unnecessary waste of material, and aluminum pipe is soft yielding larger to test findings disturbance.Secondly, test findings is affected by human factors very large, and such as cut off position, finally carry out the sample position of softening point test and all depend on and test operation person, variability is very large, is difficult to the repdocutbility ensureing result.3rd, the two sections of samples cutting off rear taking-up must reheat filling mould and just can carry out softening point test, and this not only the segregation state original to sample can cause disturbance, and its result can not reflect performance of emanating really, also substantially prolongs test period, reduce test efficiency.In addition, Chinese patent (200420086109.3) discloses a kind of modified bitumen storage stability tester, and this device comprises holding barrel, temperature-constant bucket, capping, obstacle rod, motor etc., motor connection rotating shaft, rotating shaft lower end is configured with rotor, and rotating shaft and rotor stretch in holding barrel, and temperature-constant bucket is externally connected to thermostat, thermostat connects temperature-sensing probe, and temperature-sensing probe stretches in holding barrel.The periphery of temperature-constant bucket is rotary heating silk, and bottom is heating collar, and skin is asbestos attemperator.Four apertures in capping are respectively that nitrogen is filled with hole, temperature-sensing probe stretches into hole, shaft stretches into hole and thief hole, though this device simulates field conditions well, device is more complicated, and cost is higher.
Utility model content
The purpose of this utility model is the shortcoming overcoming above-mentioned prior art, provides a kind of device testing modified bitumen stability, and this measurement device precision is higher, and test efficiency is higher, and structure is simple simultaneously, and convenient operation, cost is lower, can reuse.
For achieving the above object, the device of test modified bitumen stability described in the utility model comprises column, platform, the first sample ring, the second sample ring, test specimen tube, the first stull, the second stull, top cover and base;
Column is erect and is fixed on platform, base is positioned on platform, first sample ring and the second sample ring are socketed on the two ends up and down of test specimen tube respectively, top cover is positioned at the top open part of the first sample ring, the lower end of the second sample ring is socketed on base, the junction of the first sample ring and test specimen tube is fixed in one end of first stull, the junction of the second sample ring and test specimen tube is fixed in one end of second stull, the other end of the first stull and the other end of the second stull are all connected with column, the first sample ring, the second sample ring and the equal vertical distribution of test specimen tube.
First sample ring is connected with test specimen tube through the side of the first sample ring and the side of test specimen tube by the first screw.
Second sample ring and test specimen tube are connected through the side of the second sample ring and the side of test specimen tube by the second screw.
First stull and the second stull are connected with the first screw and the second screw respectively.
Described platform is provided with the first groove, and the lower end of base is embedded in described first groove.
The xsect of described first sample ring wall is stepped ramp type structure, and the top of base is provided with second groove that to match with described stepped ramp type structure, and the first sample ring is embedded in described second groove.
The surface of contact of test specimen tube and the first sample ring and the second sample ring is coated with separant.
First sample ring and the second sample ring are the hollow ring that brass or stainless steel are made.
The utility model has following beneficial effect:
The device of test modified bitumen stability described in the utility model is in measuring process, by the first sample ring, the second sample ring and test specimen tube are fixedly connected with column by the first stull and the second stull, the first sample ring, the second sample ring and test specimen tube is avoided to be out of shape, the repdocutbility of warranty test result, ensure that the first sample ring, the second sample ring and test specimen tube can be reused simultaneously, and structure is simple, and convenient operation, cost is lower.In addition, when shearing, shearing the joint face of test specimen tube and the first sample ring and the second sample ring, getting rid of human factor to the impact of softening point test result, true, the reliable and accuracy of warranty test result.In addition, compared with traditional technology, in the utility model, the first sample ring and the second sample ring and test specimen tube scraper cut off and directly can carry out softening point test, without the need to again filling with mould afterwards, both decrease the disturbance to the original segregation state of modified bitumen, also substantially increase test efficiency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein, 1 be column, 2 be platform, 3 be base for test specimen tube, 5 be the first sample ring, 5 be the second sample ring, 6 be the first screw, 7 be the second screw, 8 be the first stull, 9 is the second stull, 10,11 be top cover.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
With reference to figure 1, the device of test modified bitumen stability described in the utility model comprises column 1, platform 2, first sample ring 4, second sample ring 5, test specimen tube 3, first stull 8, second stull 9, top cover 11 and base 10, column 1 is erect and is fixed on platform 2, base 10 is positioned on platform 2, first sample ring 4 and the second sample ring 5 are socketed on the two ends up and down of test specimen tube 3 respectively, top cover 11 is positioned at the top open part of the first sample ring 4, the lower end of the second sample ring 5 is socketed on base 10, the junction of the first sample ring 4 and test specimen tube 3 is fixed in one end of first stull 8, the junction of the second sample ring 5 and test specimen tube 3 is fixed in one end of second stull 9, the other end of the first stull 8 and the other end of the second stull 9 are all connected with column 1, first sample ring 4, second sample ring 5 and test specimen tube 3 all vertical distribution.
It should be noted that, first sample ring 4 is connected with test specimen tube 3 through the side of the first sample ring 4 and the side of test specimen tube 3 by the first screw 6, and the second sample ring 5 and test specimen tube 3 are connected through the side of the second sample ring 5 and the side of test specimen tube 3 by the second screw 7; First stull 8 and the second stull 9 are connected with the first screw 6 and the second screw 7 respectively; Platform 2 is provided with the first groove, and the lower end of base 10 is embedded in described first groove; The xsect of the first sample ring 4 wall is stepped ramp type structure, and the top of base 10 is provided with second groove that to match with described stepped ramp type structure, and the first sample ring 4 is embedded in described second groove; The surface of contact of test specimen tube 3 and the first sample ring 4 and the second sample ring 5 is coated with separant; First sample ring 4 and the second sample ring 5 are the hollow ring that brass or stainless steel are made.
Specific operation process of the present utility model is:
1) modified bitumen is poured into from the first sample ring 4 in first sample ring 4, test specimen tube 3 and the second sample ring 5, then top cover 11 is covered in the first sample ring 4, again the device of described test modified bitumen stability is put into baking oven baking, and then move into refrigerator and cooled and freeze;
2) the first sample ring 4, test specimen tube 3 and the second sample ring 5 are separated from the device of described test modified bitumen stability, cut the joint face of test specimen tube 3 and the first sample ring 4 and the second sample ring 5 again with scraper, take out the first sample ring 4 and the second sample ring 5;
3) the first sample ring 4 and the second sample ring 5 are carried out ring and ball softening point test in same softening point instrument, in the first sample ring 4 in the softening point of modified bitumen and the second sample ring 5 modified bitumen soft change a little between difference, then the difference between changing a little according to modified bitumen in the softening point of modified bitumen in the first sample ring 4 and the second sample ring 5 soft obtains modified bitumen hot storage stability.
Step 1) in the device of described test modified bitumen stability put into baking oven at 163 DEG C, place 48h, and then to move in refrigerator freezing 4h at 5 DEG C.
Claims (8)
1. test the device of modified bitumen stability for one kind, it is characterized in that, comprise column (1), platform (2), the first sample ring (4), the second sample ring (5), test specimen tube (3), the first stull (8), the second stull (9), top cover (11) and base (10);
Column (1) is erect and is fixed on platform (2), base (10) is positioned on platform (2), first sample ring (4) and the second sample ring (5) are socketed on the two ends up and down of test specimen tube (3) respectively, top cover (11) is positioned at the top open part of the first sample ring (4), the lower end of the second sample ring (5) is socketed on base (10), the junction of the first sample ring (4) and test specimen tube (3) is fixed in one end of first stull (8), the junction of the second sample ring (5) and test specimen tube (3) is fixed in one end of second stull (9), the other end of the first stull (8) and the other end of the second stull (9) are all connected with column (1), first sample ring (4), second sample ring (5) and test specimen tube (3) all vertical distribution.
2. the device of test modified bitumen stability according to claim 1, it is characterized in that, the first sample ring (4) is connected with test specimen tube (3) through the side of the first sample ring (4) and the side of test specimen tube (3) by the first screw (6).
3. the device of test modified bitumen stability according to claim 2, it is characterized in that, the second sample ring (5) and test specimen tube (3) are connected through the side of the second sample ring (5) and the side of test specimen tube (3) by the second screw (7).
4. the device of test modified bitumen stability according to claim 3, is characterized in that, the first stull (8) and the second stull (9) are connected with the first screw (6) and the second screw (7) respectively.
5. the device of test modified bitumen stability according to claim 1, is characterized in that, described platform (2) is provided with the first groove, and the lower end of base (10) is embedded in described first groove.
6. the device of test modified bitumen stability according to claim 5, it is characterized in that, the xsect of described first sample ring (4) wall is stepped ramp type structure, the top of base (10) is provided with second groove that to match with described stepped ramp type structure, and the first sample ring (4) is embedded in described second groove.
7. the device of test modified bitumen stability according to claim 1, is characterized in that, the surface of contact of test specimen tube (3) and the first sample ring (4) and the second sample ring (5) is coated with separant.
8. the device of test modified bitumen stability according to claim 1, is characterized in that, the first sample ring (4) and the second sample ring (5) are the hollow ring that brass or stainless steel are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520905997.5U CN205103192U (en) | 2015-11-13 | 2015-11-13 | Device of test modified asphalt stability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520905997.5U CN205103192U (en) | 2015-11-13 | 2015-11-13 | Device of test modified asphalt stability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205103192U true CN205103192U (en) | 2016-03-23 |
Family
ID=55518968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520905997.5U Expired - Fee Related CN205103192U (en) | 2015-11-13 | 2015-11-13 | Device of test modified asphalt stability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205103192U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105445316A (en) * | 2015-11-13 | 2016-03-30 | 长安大学 | Device and method for testing thermal storage stability of modified asphalt |
-
2015
- 2015-11-13 CN CN201520905997.5U patent/CN205103192U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105445316A (en) * | 2015-11-13 | 2016-03-30 | 长安大学 | Device and method for testing thermal storage stability of modified asphalt |
| CN105445316B (en) * | 2015-11-13 | 2019-03-01 | 长安大学 | A kind of modified pitch hot storage stability test device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103439222B (en) | A kind of cold repairing asphalt mixture low-temperature working performance testing device and method of testing | |
| CN103245542B (en) | Test method of compound cracking of asphalt mixture | |
| CN105445316A (en) | Device and method for testing thermal storage stability of modified asphalt | |
| CN102183409B (en) | Test method for performance of aged asphalt in waste asphalt concrete | |
| CN105067452B (en) | A kind of method for obtaining asphalt material physical hardening Performance Evaluating Indexes | |
| CN103344526A (en) | Tester and testing method for workability index of bituminous mixture | |
| CN104749343A (en) | Constant-volume and temperature-controllable axial and radial soil body expansibility tester | |
| CN111024556A (en) | Device and method for evaluating diffusion capacity of regenerant in aged asphalt | |
| CN107843723A (en) | A kind of asphalt dynamic load salt water temperature various factors coupling experimental rig and its test method | |
| CN205103192U (en) | Device of test modified asphalt stability | |
| Luo et al. | Advanced method for measuring asphalt viscosity: Rotational plate viscosity method and its application to asphalt construction temperature prediction | |
| CN116256299B (en) | Pavement water seepage instrument for road construction monitoring and detection method | |
| CN207611048U (en) | A kind of asphalt dynamic load-salt-water-temperature various factors coupling experimental rig | |
| CN111157402B (en) | Method and device for measuring theoretical maximum relative density of hot recycled asphalt mixture | |
| CN110514818A (en) | A kind of test method of quantitative assessment Bituminous Pavement Cold feed supplement construction workability | |
| CN104990839A (en) | Permeability test device for sand-containing fog sealing layer material | |
| CN204255945U (en) | The proving installation of the inner frost heaving amount of a kind of compacted soil | |
| CN204142604U (en) | A kind of thick liquid viscosity test device | |
| CN109580334A (en) | A kind of pitch ductility analyzer and its application method | |
| CN106526027B (en) | A kind of SBS modified pitch dosage test method based on liquid chromatogram | |
| CN212871917U (en) | Test piece mould for evaluating asphalt diffusion degree | |
| CN203310723U (en) | Workability index tester for bituminous mixture | |
| CN106383085B (en) | Identify-three plate friction test method of ball of surfactant-based warm-mixed asphalt | |
| CN203385713U (en) | Device for testing low-temperature working property of cold patch asphalt mixture | |
| CN206387680U (en) | Cold repairing asphalt mixture leakage analysis losing analyzer |
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 |
Granted publication date: 20160323 Termination date: 20161113 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |