CN204346847U - A kind of device testing asphalt mastic shearing strength - Google Patents
A kind of device testing asphalt mastic shearing strength Download PDFInfo
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- CN204346847U CN204346847U CN201520018799.7U CN201520018799U CN204346847U CN 204346847 U CN204346847 U CN 204346847U CN 201520018799 U CN201520018799 U CN 201520018799U CN 204346847 U CN204346847 U CN 204346847U
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- asphalt mastic
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- shearing strength
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Abstract
The utility model belongs to asphalt mastic Performance Evaluation Technique field, specifically, relates to a kind of device testing asphalt mastic shearing strength.Described device comprises test cone, weights and sample-containing dish; Described test cone comprises the cone point, intermediate and the connecting rod that connect successively; Described cone point is cone, and described intermediate and connecting rod are solid cylinder; Described weights is hollow cylinder; Described sample-containing dish is upper shed thin-walled hollow right cylinder.Compared with prior art, the cone penetration that the device of test asphalt mastic shearing strength described in the utility model can test different temperatures, difference bores asphalt mastic under weight condition; High temperature performance and the response to temperature of asphalt mastic that pitch and different filler form or bituminous grout material can be evaluated; Structure is simple, reasonable in design, and exploitativeness is strong, applied widely, and result of use is good, is convenient to promote.
Description
Technical field
The utility model belongs to asphalt mastic Performance Evaluation Technique field, specifically, relates to a kind of device testing asphalt mastic shearing strength.
Background technology
Asphalt is a kind of disperse system of multistage space net structure, and asphalt mastic is the most basic a kind of form and the most important components of asphalt, and the performance of asphalt mastic affects the pavement performance of asphalt to a great extent.The asphalt mastic be made up of pitch and breeze is the asphalt mastic of narrow sense, and sensu lato asphalt mastic refers to the potpourri be made up of a part of fine aggregate and pitch, breeze and stabilizing agent, is bitumastic.The ability making pitch resist high temperature deformation that adds of filler strengthens, and effectively can suppress the generation of high temperature rut, greatly improve the high-temperature stability of pitch.Along with the development of road surface new material technology, also some novel Load materials have been emerged in large numbers in pavement engineering, such as cast asphalt concrete, SMA etc., they and common dense-graded asphalt concrete are different, be all be dispersed in the structural system in high-load asphalt mastic (pitch+filler+stabilizing agent) with pellet, its pavement performance depends primarily on the performance of asphalt mastic.
Asphalt mastic denseness and viscosity larger, carry out the impact that penetration test is subject to filler particles degree of scatter in asphalt mastic, sample sample-containing dish size is less than normal, and test findings discreteness is larger, definitely can not reflect the character of asphalt mastic, utilize conventional penetrometer test to be infeasible.Have employed dynamic shear flow graph in recent years both at home and abroad and the high/low temperature character of low-temperature bending flow graph to asphalt mastic is tested, and studied asphalt mastic high temperature performance and the fatigue behaviour of different filler and volume, and achieve certain achievement in research.But domestic dynamic shear flow graph and low-temperature bending flow graph less, apparatus expensive, testing inspection is comparatively complicated, detects application there is inconvenience for actual pavement engineering construction quality, to such an extent as to this method at home can't large-scale popularization application.
Summary of the invention
For solving the problems of the technologies described above, the utility model provides the device of a kind of low price, test asphalt mastic shearing strength easy to detect.
A kind of device testing asphalt mastic shearing strength described in the utility model, described device comprises test cone 1, weights 2 and sample-containing dish 3; Described test cone 1 comprises the cone point 11, intermediate 12 and the connecting rod 13 that connect successively; Described cone point 11 is cone, and described intermediate 12 and connecting rod 13 are solid cylinder; Described weights 2 is hollow cylinder; Described sample-containing dish 3 is upper shed thin-walled cylinder cavity.
A kind of device testing asphalt mastic shearing strength described in the utility model, described test cone 1, weights 2 and sample-containing dish 3 process by stainless steel.
A kind of device testing asphalt mastic shearing strength described in the utility model, described cone point 11 cone angles are 30 DEG C, height 30mm, surface roughness Ra 0.2 ~ 0.3 μm.
A kind of device testing asphalt mastic shearing strength described in the utility model, described intermediate 12 height 10 ~ 20mm, diameter 9mm.
A kind of device testing asphalt mastic shearing strength described in the utility model, described connecting rod 13 diameter 3mm, height 40mm.
A kind of device testing asphalt mastic shearing strength described in the utility model, described weights 2 internal diameter 9mm, weight mass is divided into 10g, 20g, 50g three types.
A kind of device testing asphalt mastic shearing strength described in the utility model, described sample-containing dish 3 is upper shed thin-walled cylinder cavity, internal diameter 100mm, external diameter 110mm, dark 60mm.
A kind of device testing asphalt mastic shearing strength described in the utility model, described weights 2 can directly be enclosed within intermediate 12 or on the connecting rod of bitumen needle forcemeter.
A kind of device testing asphalt mastic shearing strength described in the utility model, described sample-containing dish is used for containing asphalt mastic sample; Described weights is used for the counterweight of test cone; Described test cone, weights and sample-containing dish must use by bound bitumen penetrometer when testing asphalt mastic shearing strength, and connecting rod directly inserts the connecting rod of bitumen needle forcemeter and can use with screw-driving, records cone penetration value and can try to achieve shearing strength.
Compared with prior art, the device of test asphalt mastic shearing strength described in the utility model has following beneficial effect: simplicity of design is reasonable, cheap for manufacturing cost, be easy to processing, bound bitumen penetrometer can carry out asphalt mastic performance test, eliminate the impact that penetration test is subject to filler particles, sample-containing dish size, different temperatures can be tested, cone penetration that difference bores asphalt mastic under weight condition, and then try to achieve shear strength, evaluate high temperature performance and the response to temperature of asphalt mastic, test result is accurate; Applicability is wide, the filler such as pitch+breeze, pitch+breeze+fiber can be evaluated, the high temperature performance of asphalt mastic that pitch+pitch such as fiber or rubber powder and different filler form or bituminous grout material and response to temperature, be applicable to the asphalt mastic performance evaluation of such as asphalt concrete, SMA bituminous concrete, fiber asphalt concrete, rubber asphalt concrete, pouring asphalt concrete etc.; Structure is simple, reasonable in design, and exploitativeness is strong, applied widely, and result of use is good, is convenient to promote.
Accompanying drawing explanation
Fig. 1: test cone structural drawing; Fig. 2: weights construction profile; Fig. 3: weights sectional structure chart; Fig. 4: sample-containing dish construction profile; Fig. 5: sample-containing dish sectional structure chart; Test cone-1, cone point-11, intermediate-12, connecting rod-13, weights-2, sample-containing dish-3.
Embodiment
Be described further below in conjunction with the device of specific embodiment to test asphalt mastic shearing strength described in the utility model, but protection domain of the present utility model is not limited to this.
Embodiment 1
Test a device for asphalt mastic shearing strength, described device comprises test cone 1, weights 2 and sample-containing dish 3; Described test cone 1 comprises the cone point 11, intermediate 12 and the connecting rod 13 that connect successively; Described cone point 11 is cone, and described intermediate 12 and connecting rod 13 are solid cylinder; Described weights 2 is hollow cylinder; Described sample-containing dish 3 is upper shed thin-walled cylinder cavity; Described test cone 1, weights 2 and sample-containing dish 3 process by stainless steel; Sharp 11 cone angles of described cone are 30 DEG C, height 30mm, surface roughness Ra 0.2 μm; Described intermediate 12 height 20mm, diameter 9mm; Described connecting rod 13 diameter 3mm, height 40mm; Described weights 2 internal diameter 9mm, weight mass divides 10g, 20g, 50g three types; Described sample-containing dish 3 is upper shed thin-walled cylinder cavity, internal diameter 100mm, external diameter 110mm, dark 60mm; Described weights 2 can directly be enclosed within intermediate 12 or on the connecting rod of bitumen needle forcemeter.A kind of device testing asphalt mastic shearing strength described in the utility model, described sample-containing dish is used for containing asphalt mastic sample; Described weights is used for the counterweight of test cone; Described test cone, weights and sample-containing dish must use by bound bitumen penetrometer when testing asphalt mastic shearing strength, and connecting rod directly inserts bitumen needle forcemeter pin connecting rod and can use with screw-driving, records cone penetration value and can try to achieve shearing strength.
The experiment process of test asphalt mastic shearing strength: the asphalt mastic that 1. will prepare injects sample-containing dish, and build anti-fall enter dust, at room temperature cooling is no less than 3h; 2. sample-containing dish is moved in the water bath with thermostatic control under test temperature condition, insulation is no less than 2.5h; 3. the connecting rod (can put the weights of needs) of test cone is directly inserted bitumen needle forcemeter pin connecting rod, and with screw-driving to stable, sample-containing dish is taken out simultaneously and put into water temperature and control, on the A-frame of the flat-bottomed glass dish of test temperature ± 0.1 DEG C, to be then put on the platform of penetrometer; 4. slowly put down the connecting rod of test cone, Adjustment Tests cone height contacts with specimen surface just to cone point, and starting characteristics test after reading zero setting, stops automatically to during 5s, reads cone penetration value (0.1mm); 5. can try to achieve shearing strength by cone penetration value, its shear strength calculation formula is: τ=[Qcos2 (α/2)]/[π h2tan (α/2)].In formula: τ-shearing strength, kPa; Q-cone point, connecting rod and counterweight gross weight, kN; H-bores into the degree of depth, m; α-point angle degree.
Compared with prior art, the device of test asphalt mastic shearing strength described in the utility model has following beneficial effect: simplicity of design is reasonable, cheap for manufacturing cost, be easy to processing, bound bitumen penetrometer can carry out asphalt mastic performance test, eliminate the impact that penetration test is subject to filler particles, sample-containing dish size, different temperatures can be tested, cone penetration that difference bores asphalt mastic under weight condition, and then try to achieve shear strength, evaluate high temperature performance and the response to temperature of asphalt mastic, test result is accurate; Applicability is wide, the filler such as pitch+breeze, pitch+breeze+fiber can be evaluated, the high temperature performance of asphalt mastic that pitch+pitch such as fiber or rubber powder and different filler form or bituminous grout material and response to temperature, be applicable to the asphalt mastic performance evaluation of such as asphalt concrete, SMA bituminous concrete, fiber asphalt concrete, rubber asphalt concrete, pouring asphalt concrete etc.; Structure is simple, reasonable in design, and exploitativeness is strong, applied widely, and result of use is good, is convenient to promote.
Claims (8)
1. test a device for asphalt mastic shearing strength, it is characterized in that, described device comprises test cone (1), weights (2) and sample-containing dish (3); Described test cone (1) comprises the cone point (11), intermediate (12) and the connecting rod (13) that connect successively; Described cone point (11) is cone, and described intermediate (12) and connecting rod (13) are solid cylinder; Described weights (2) is hollow cylinder; Described sample-containing dish (3) is upper shed thin-walled cylinder cavity.
2. a kind of device testing asphalt mastic shearing strength according to claim 1, is characterized in that, described test cone (1), weights (2) and sample-containing dish (3) process by stainless steel.
3. a kind of device testing asphalt mastic shearing strength according to claim 1, is characterized in that, the cone angle of described cone point (11) is 30 DEG C, height 30mm, surface roughness Ra 0.2 ~ 0.3 μm.
4. a kind of device testing asphalt mastic shearing strength according to claim 1, is characterized in that, described intermediate (12) height 10 ~ 20mm, diameter 9mm.
5. a kind of device testing asphalt mastic shearing strength according to claim 1, is characterized in that, described connecting rod (13) diameter 3mm, height 40mm.
6. a kind of device testing asphalt mastic shearing strength according to claim 1, is characterized in that, described weights (2) internal diameter 9mm, weight mass is divided into 10g, 20g, 50g three types.
7. a kind of device testing asphalt mastic shearing strength according to claim 1, is characterized in that, the internal diameter 100mm of described sample-containing dish (3), external diameter 110mm, dark 60mm.
8. a kind of device testing asphalt mastic shearing strength according to claim 1, is characterized in that, described weights (2) can directly be enclosed within intermediate (12) or on the connecting rod of bitumen needle forcemeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520018799.7U CN204346847U (en) | 2015-01-12 | 2015-01-12 | A kind of device testing asphalt mastic shearing strength |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520018799.7U CN204346847U (en) | 2015-01-12 | 2015-01-12 | A kind of device testing asphalt mastic shearing strength |
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| CN204346847U true CN204346847U (en) | 2015-05-20 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110514559A (en) * | 2019-08-30 | 2019-11-29 | 中国航发动力股份有限公司 | A kind of abrasive Flow abrasive material viscosity matching measurement device and measurement method |
| CN114965168A (en) * | 2022-05-23 | 2022-08-30 | 东北林业大学 | Test instrument and method for evaluating physical hardening of asphalt |
-
2015
- 2015-01-12 CN CN201520018799.7U patent/CN204346847U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110514559A (en) * | 2019-08-30 | 2019-11-29 | 中国航发动力股份有限公司 | A kind of abrasive Flow abrasive material viscosity matching measurement device and measurement method |
| CN114965168A (en) * | 2022-05-23 | 2022-08-30 | 东北林业大学 | Test instrument and method for evaluating physical hardening of asphalt |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150520 Termination date: 20190112 |