CN203310723U - Workability index tester for bituminous mixture - Google Patents
Workability index tester for bituminous mixture Download PDFInfo
- Publication number
- CN203310723U CN203310723U CN2013203839724U CN201320383972U CN203310723U CN 203310723 U CN203310723 U CN 203310723U CN 2013203839724 U CN2013203839724 U CN 2013203839724U CN 201320383972 U CN201320383972 U CN 201320383972U CN 203310723 U CN203310723 U CN 203310723U
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- asphalt
- charging basket
- workability index
- torque wrench
- index tester
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Abstract
The utility model discloses a workability index tester for a bituminous mixture. The workability index tester comprises a material barrel, a stirring shaft and a torque wrench, wherein a barrel cover is arranged on the top of the material barrel; a feeding opening is formed in the barrel cover; the stirring shaft is connected with the barrel cover through bearings in a rotatable manner; the upper end of the stirring shaft is connected with the torque wrench through a switching joint; the lower end of the stirring shaft penetrates through the barrel cover to extend into the material barrel; stirring blades are arranged at the lower end of the stirring shaft; the torque wrench is a digital display type torque wrench or a pointer type torque wrench. The workability index tester is novel and reasonable in design, wide in application range, good in using effect, high in practicability and convenient to popularize.
Description
Technical field
The utility model relates to a kind of asphalt tester, especially relates to a kind of asphalt workability index tester.
Background technology
The workability of asphalt is to characterize asphalt mixture mixing, pave and the essential characteristic of compaction capacity, its production temperature and construction quality are had to appreciable impact, when workability is poor, can has a strong impact on the compaction capacity of bituminous pavement, and then affect the construction quality of bituminous pavement.
Domestic and international research to the asphalt workability at present mainly concentrates on its test and evaluation method aspect.Because the up to the present evaluation to the asphalt workability does not also have unified standard, therefore the workability that the single indexs such as the density of asphalt viscosity, asphalt or voidage are carried out the Indirect evaluation asphalt is all measured in great majority research by tests such as asphalt viscosity test, Marshall compaction test and Superpave gyratory compaction tests, yet these methods can not reflect the real workability of asphalt fully because the workability of asphalt be the pitch kind, the coefficient result of factor such as the kind of gathering materials, grating type and temperature.Wherein, the asphalt viscosity test is also more accurate for the workability of estimating matrix pitch and compound thereof, but but always with actual conditions, differs greatly for modified bitumen and compound evaluation result thereof.Marshall compaction test and Superpave gyratory compaction test are all to estimate its workability by the bulk properties of analyzing asphalt, although evaluation result is more realistic, still not comprehensive with respect to the asphalt viscosity test.1979, at first Marvillet and Bougault proposed to adopt the asphalt workability to test to estimate the workability of asphalt, and have designed first asphalt workability proving installation.Afterwards, a lot of research institutions of the U.S. have all developed respectively different workability testing apparatuss, but test principle is basic identical, are all to estimate by test asphalt sticky resistance at a certain temperature.Although abroad the test and evaluation for the asphalt workability has had very great development, but domestic current research still concentrates in the asphalt viscosity test mostly, existing only a few can realize the asphalt workability is carried out to the directly instrument of test by the workability index of asphalt, as Chinese patent CN101251529A etc., because of its design complexity, manufacturing cost is high, is unfavorable for applying.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of simplicity of design reasonable, cheap for manufacturing cost for above-mentioned deficiency of the prior art, and test result is asphalt workability index tester accurately.Utilize this tester not only can record simply, quickly and accurately the workability index of asphalt, can also estimate the workability quality of asphalt.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of asphalt workability index tester, it is characterized in that: comprise charging basket, shaft and dial torque wrench, described charging basket top is provided with bung, on described bung, offer charge door, described shaft is rotationally connected by bearing and bung, described shaft upper end is connected with dial torque wrench by X-over, described shaft lower end is passed bung and is stretched in charging basket, and described shaft lower end is equipped with stirring vane; Described dial torque wrench is digital display type dial torque wrench or pointer type torque wrench.
Above-mentioned a kind of asphalt workability index tester, it is characterized in that: described bearing is the open type deep groove ball bearing.
Above-mentioned a kind of asphalt workability index tester, it is characterized in that: the internal diameter of described bearing is 20mm～25mm, the external diameter of described bearing is 52mm～72mm.
Above-mentioned a kind of asphalt workability index tester, it is characterized in that: described X-over is interior Hexagonal jacket joint, and described shaft upper end and X-over are suitable.
Above-mentioned a kind of asphalt workability index tester, it is characterized in that: described charging basket is coated with the rock wool heat-preservation layer.
Above-mentioned a kind of asphalt workability index tester, it is characterized in that: the internal diameter of described charging basket is 280mm～300mm, the degree of depth of described charging basket is 260mm～300mm.
Above-mentioned a kind of asphalt workability index tester, it is characterized in that: the quantity of described stirring vane is three, three described stirring vanes are equidistant laying along the axis direction of shaft, and the distance between adjacent two stirring vanes is 40mm～50mm, in three described stirring vanes, the angle of any two stirring vanes all equates.
Above-mentioned a kind of asphalt workability index tester is characterized in that: described stirring vane be shaped as cuboid, the length of described stirring vane is 80mm～100mm, width is 20mm～40mm, thickness is 5mm; In three described stirring vanes, be 40mm～50mm near the distance h between the bottom of the stirring vane of charging basket bottom is bottom charging basket.
The utility model compared with prior art has the following advantages:
1, the utility model simplicity of design is reasonable, cheap for manufacturing cost, test result is accurate, not only can record simply, quickly and accurately the workability index of asphalt, can also estimate out according to the size of this workability index the workability quality of asphalt; The workability index is larger illustrates that the workability of asphalt is better, otherwise poorer.
2, the utility model applicability is wide, and exploitativeness is strong, can be widely used in cold-mix asphalt compound, Warm-Mix Bitumen Mixture and the test of hot-mix asphalt mixture workability index and the evaluation of workability.In specific implementation process, can first cold-mix asphalt compound, Warm-Mix Bitumen Mixture or hot-mix asphalt mixture be carried out under the design temperature condition to the constant temperature mix, until mix, can utilize after evenly the utility model to this temperature conditions under the workability index of asphalt test.
3, the utility model can directly be tested for asphalt, the sticky resistance of mix that reflects truly, exactly asphalt by the stirring to asphalt, and with the formal representation of torque value out, thereby measure exactly the workability index of asphalt; And the utility model can also be estimated the workability quality of asphalt according to the size of workability index.
4, the utility model is simple in structure, and rationally novel in design, exploitativeness is strong, applied widely, and result of use is good, is convenient to promote.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
The accompanying drawing explanation
Fig. 1 is the structural representation of the utility model asphalt workability index tester.
Fig. 2 is the A-A cut-open view of Fig. 1.
Fig. 3 is the annexation schematic diagram of the utility model stirring vane and shaft.
Description of reference numerals:
1-charging basket; 2-bung; 3-bearing;
4-charge door; 5-shaft; 6-stirring vane;
7-dial torque wrench; 8-X-over; 9-rock wool heat-preservation layer.
Embodiment
As shown in Figure 1, Figure 2 and Figure 3, the utility model asphalt workability index tester comprises charging basket 1, shaft 5 and dial torque wrench 7, described charging basket 1 top is provided with bung 2, on described bung 2, offer charge door 4, described shaft 5 is rotationally connected by bearing 3 and bung 2, described shaft 5 upper ends are connected with dial torque wrench 7 by X-over 8, and described shaft 5 lower ends are passed bung 2 and stretched in charging basket 1, and described shaft lower end is equipped with stirring vane 6; Described dial torque wrench 7 is digital display type dial torque wrench or pointer type torque wrench.
Preferably, described bearing 3 is the open type deep groove ball bearing.
Preferably, the internal diameter of described bearing 3 is 20mm～25mm, and the external diameter of described bearing 3 is 52mm～72mm.
Preferably, described X-over 8 is interior Hexagonal jacket joint, and described shaft 5 upper ends and X-over 8 are suitable.
Preferably, described charging basket 1 is coated with rock wool heat-preservation layer 9.
Preferably, the internal diameter of described charging basket 1 is 280mm～300mm, and the degree of depth of described charging basket 1 is 260mm～300mm.
Preferably, the quantity of described stirring vane 6 is three, three described stirring vanes 6 are equidistant laying along the axis direction of shaft 5, and the distance between adjacent two stirring vanes 6 is 40mm～50mm, and three described stirring vanes 6 are even laying on the plane vertical with shaft 5.
Preferably, the shape of three described stirring vanes 6 is cuboid, and the length of three described stirring vanes 6 is 80mm～100mm, and width is 20mm～40mm, and thickness is 5mm.
Preferably, in three described stirring vanes 6, be 40mm～50mm at the stirring vane of bottom and the distance h between charging basket 1 bottom.
In conjunction with Fig. 1, Fig. 2 and Fig. 3, using method of the present utility model comprises the following steps:
Dial torque wrench 7 after step 3, rotation calibration, dial torque wrench 7 drive shafts 5 and at the uniform velocity rotate, and on dial torque wrench 7, obtain torque value T, and the unit of T is Nm; Speed of rotation is preferably 12r/min～20r/min;
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every any simple modification, change and equivalent structure of above embodiment being done according to the utility model technical spirit changes, and all still belongs in the protection domain of technical solutions of the utility model.
Claims (8)
1. asphalt workability index tester, it is characterized in that: comprise charging basket (1), shaft (5) and dial torque wrench (7), described charging basket (1) top is provided with bung (2), on described bung (2), offer charge door (4), described shaft (5) is rotationally connected by bearing (3) and bung (2), described shaft (5) upper end is connected with dial torque wrench (7) by X-over (8), described shaft (5) lower end is passed bung (2) and is stretched in charging basket (1), described shaft (5) lower end is equipped with stirring vane (6), described dial torque wrench (7) is digital display type dial torque wrench or pointer type torque wrench.
2. a kind of asphalt workability index tester according to claim 1, it is characterized in that: described bearing (3) is the open type deep groove ball bearing.
3. a kind of asphalt workability index tester according to claim 1, it is characterized in that: the internal diameter of described bearing (3) is 20mm～25mm, the external diameter of described bearing (3) is 52mm～72mm.
4. a kind of asphalt workability index tester according to claim 1, it is characterized in that: described X-over (8) is interior Hexagonal jacket joint, and described shaft (5) upper end and X-over (8) are suitable.
5. a kind of asphalt workability index tester according to claim 1, it is characterized in that: described charging basket (1) is coated with rock wool heat-preservation layer (9).
6. a kind of asphalt workability index tester according to claim 1, it is characterized in that: the internal diameter of described charging basket (1) is 280mm～300mm, the degree of depth of described charging basket (1) is 260mm～300mm.
7. a kind of asphalt workability index tester according to claim 1, it is characterized in that: the quantity of described stirring vane (6) is three, three described stirring vanes (6) are equidistant laying along the axis direction of shaft (5), and the distance between adjacent two stirring vanes (6) is 40mm～50mm, and the angle in three described stirring vanes (6) between any two stirring vanes all equates.
8. a kind of asphalt workability index tester according to claim 7, it is characterized in that: described stirring vane (6) be shaped as cuboid, the length of described stirring vane (6) is 80mm～100mm, and width is 20mm～40mm, and thickness is 5mm; In three described stirring vanes (6), the bottom of the stirring vane of close charging basket (1) bottom and the distance h between charging basket (1) bottom are 40mm～50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203839724U CN203310723U (en) | 2013-06-28 | 2013-06-28 | Workability index tester for bituminous mixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203839724U CN203310723U (en) | 2013-06-28 | 2013-06-28 | Workability index tester for bituminous mixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203310723U true CN203310723U (en) | 2013-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013203839724U Expired - Fee Related CN203310723U (en) | 2013-06-28 | 2013-06-28 | Workability index tester for bituminous mixture |
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| CN (1) | CN203310723U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344526A (en) * | 2013-06-28 | 2013-10-09 | 长安大学 | Tester and testing method for workability index of bituminous mixture |
| CN111060680A (en) * | 2019-12-09 | 2020-04-24 | 同济大学 | Workability testing device and workability evaluation method for asphalt mixture |
-
2013
- 2013-06-28 CN CN2013203839724U patent/CN203310723U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344526A (en) * | 2013-06-28 | 2013-10-09 | 长安大学 | Tester and testing method for workability index of bituminous mixture |
| CN111060680A (en) * | 2019-12-09 | 2020-04-24 | 同济大学 | Workability testing device and workability evaluation method for asphalt mixture |
| CN111060680B (en) * | 2019-12-09 | 2022-01-25 | 同济大学 | Workability testing device and workability evaluation method for asphalt mixture |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131127 Termination date: 20160628 |