CN105699435A - Testing device and method for emulsion breaking time of emulsified asphalt based on resistance value - Google Patents
Testing device and method for emulsion breaking time of emulsified asphalt based on resistance value Download PDFInfo
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- CN105699435A CN105699435A CN201610067890.7A CN201610067890A CN105699435A CN 105699435 A CN105699435 A CN 105699435A CN 201610067890 A CN201610067890 A CN 201610067890A CN 105699435 A CN105699435 A CN 105699435A
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- emulsified asphalt
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
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Abstract
The invention provides a testing device and method for emulsion breaking time of emulsified asphalt based on a resistance value. The testing device comprises an asphalt spraying system, a heating detection system and a bracket, wherein the asphalt spraying system comprises an asphalt storage box, an asphalt pump, an asphalt guide pipe and an asphalt nozzle; the heating detection system comprises a stone board, a temperature sensor, a resistor disc, a heater and a base; the asphalt storage box, the asphalt pump and the asphalt nozzle are connected through the asphalt guide pipe in sequence from top to bottom; the asphalt nozzle is arranged on the bracket and is arranged towards the stone board; the stone board, the heater and the base are connected in sequence from top to bottom; the temperature sensor and the resistor disc are arranged on the upper surface of the stone board; and the base is internally provided with a processor. According to the testing method, the emulsified asphalt is sprayed on the stone board, and the emulsion breaking time is obtained through testing the resistance value of the emulsified asphalt. The testing device provided by the invention can be used for determining the emulsion breaking time of the emulsified asphalt and has an active effect of guiding the construction of the emulsified asphalt.
Description
Technical field
The invention belongs to road engineering technical field, be specifically related to a kind of emulsified asphalt breakdown of emulsion time tester based on resistance value and method of testing。
Background technology
Emulsified asphalt is a kind of can be the cementitious matter constructed at normal temperatures, is used widely due to its convenient, safety and environmental protection of construction, is commonly used for adhesion coating and the sealing material of bituminous paving。But the test of emulsified asphalt de-emulsification speed that existing JTJE20-2011 " highway engineering Colophonium and Asphalt Mixture Experiment code " recommends emulsified asphalt de-emulsification speed can only be divided into split soon, in split and split slowly, it is impossible to quantify the breakdown of emulsion time of emulsified asphalt。In practice of construction, owing to cannot determine the breakdown of emulsion time of emulsified asphalt, therefore construction party just can only can carry out subsequent construction after several hours even several days, extends the construction period。Emulsified asphalt is usually used in road maintenance, owing to block road in work progress, it is therefore desirable to shorten the construction period, it is seen that determine the importance of emulsified asphalt breakdown of emulsion time as far as possible。CN203551496U discloses a kind of emulsified asphalt de-emulsification speed tester, its current value is measured to characterize emulsified asphalt de-emulsification speed by applied voltage, though the de-emulsification speed measuring emulsified asphalt that can be quantitative, but the de-emulsification speed of its mensuration is only the de-emulsification speed of emulsified asphalt liquid, rather than the de-emulsification speed of scene Emulsified Asphalt Mixture, lack the simulation to on-the-spot practice of construction situation, and can only indirectly measure Colophonium de-emulsification speed。
Summary of the invention
Solve the technical problem that: it is an object of the invention to overcome the deficiencies in the prior art to provide a kind of emulsified asphalt breakdown of emulsion time tester based on resistance value and method of testing, this device can measure the time of emulsified asphalt breakdown of emulsion, has positive role to instructing emulsified asphalt construction。
Technical scheme:
Emulsified asphalt breakdown of emulsion time tester based on resistance value, including Colophonium paint finishing, heating detection system and support, wherein, Colophonium paint finishing includes bituminous pitch storing case, bitumenpump, Colophonium conduit and Asphalt-distributing spray head, heating detection system includes stone plate, temperature sensor, resistor disc, heater and base, bituminous pitch storing case, bitumenpump and Asphalt-distributing spray head from top to bottom sequentially connect through Colophonium conduit, Asphalt-distributing spray head is arranged on support and towards stone plate, stone plate, heater and base are from top to bottom sequentially connected with, temperature sensor and resistor disc may be contained within stone plate upper surface, processor it is provided with in base, processor and bituminous pitch storing case, bitumenpump, heater, temperature sensor, connected by electric wire between resistor disc。
Further, described support is provided with air blown producer。
Further, between heater and base, thermal insulation board it is provided with。
Further, the heating-up temperature of described bituminous pitch storing case is 20～70 DEG C。
The above-mentioned emulsified asphalt breakdown of emulsion time tester based on resistance value tests the method for emulsified asphalt breakdown of emulsion time, comprises the following steps:
Step 1, adds in emulsified asphalt storage bin by emulsified asphalt, and heating is to 50～70 DEG C；
Step 2, heats stone plate to 30～50 DEG C；
Step 3, is sprayed on stone plate by emulsified asphalt, the resistance value between record resistor disc；
Step 4, the time when resistance value is more than 10000 Ω is the emulsified asphalt breakdown of emulsion time。
Further, in step 3, the fountain height of emulsified asphalt is 20～200g。
Beneficial effect: the emulsified asphalt breakdown of emulsion time measurement device based on resistance value provided by the invention and method of testing, can measure the time of emulsified asphalt breakdown of emulsion, has positive role to instructing emulsified asphalt construction。
Accompanying drawing explanation
Fig. 1 is the emulsified asphalt breakdown of emulsion time tester structural representation based on resistance value of embodiment 1, wherein, 11 be bituminous pitch storing case, 12 be bitumenpump, 13 be Colophonium conduit, 14 be Asphalt-distributing spray head, 21 be stone plate, 22 be temperature sensor, 23 be resistor disc, 24 be heater, 25 be base, 26 be thermal insulation board, 31 for air blown producer。
Detailed description of the invention
Below technical solution of the present invention is described in detail, but the following examples are only used for explaining technical scheme, are not used in the restriction present invention。
Embodiment 1
As shown in Figure 1, emulsified asphalt breakdown of emulsion time tester based on resistance value, including Colophonium paint finishing, heating detection system and support, wherein, Colophonium paint finishing includes bituminous pitch storing case 11, bitumenpump 12, Colophonium conduit 13 and Asphalt-distributing spray head 14, heating detection system includes stone plate 21, temperature sensor 22, resistor disc 23, heater 24 and base 25, bituminous pitch storing case 11, bitumenpump 12 and Asphalt-distributing spray head 14 from top to bottom sequentially connect through Colophonium conduit 13, Asphalt-distributing spray head 14 is arranged on support and towards stone plate 21, stone plate 21, heater 24 and base 25 are from top to bottom sequentially connected with, temperature sensor 22 and resistor disc 23 may be contained within stone plate 21 upper surface, it is provided with processor in base 25, processor and bituminous pitch storing case 11, bitumenpump 12, heater 24, temperature sensor 22, connected by electric wire between resistor disc 23。
Described resistor disc 23 has two, is arranged on three branch places of a diameter of stone plate 21。
Described temperature sensor 22 has two, is arranged on the two ends of the diameter of the stone plate 21 that resistor disc 23 is installed。
Support is provided with air blown producer 31, totally two, the both sides in rack-mount portion。
Thermal insulation board 26 it is provided with, in order to protect base between heater 24 and base 25。
Asphalt-distributing spray head 14 totally four, uniformly rack-mount, four Asphalt-distributing spray heads 14 can be completely covered the diameter of temperature sensor 22, resistor disc 23 and its stone plate 21 after spraying, the cover width of emulsified asphalt is more than 3cm。
Stone plate 21 is basal diameter is 15cm, be highly the cylinder building stones of 2～3cm, a monoblock natural stone cutting form, rock types can according to type conversion used in engineering reality。In the present embodiment, building stones used are the basalt building stones that Jiangsu Province is conventional, from Zhejiang Huzhou Tai Mashi stone pit。
Emulsified asphalt used is the high-performance modified emulsified asphalt of TS that Nantong Tong Sha Colophonium Science and Technology Ltd. produces, and evaporated residue content is 66%。
The above-mentioned emulsified asphalt breakdown of emulsion time tester based on resistance value tests the method for emulsified asphalt breakdown of emulsion time, comprises the following steps:
Step 1, adds in emulsified asphalt storage bin by emulsified asphalt, and heating is to 50～70 DEG C；
Step 2, heats stone plate to 30～50 DEG C；
Step 3, is sprayed on stone plate by 20～200g emulsified asphalt, the resistance value between record resistor disc；
Step 4, the time when resistance value is more than 10000 Ω is the emulsified asphalt breakdown of emulsion time。
Producing water used during emulsified asphalt is tap water, and resistivity is at 800～8000 Ω cm, and owing to it is possible to additionally incorporate the inorganic compound such as anhydrous calcium chloride, hydrochloric acid in emulsified asphalt, its resistivity will be far below 800 Ω cm。Being a thin layer after emulsified asphalt asphalt distribution, its thickness is less than 0.001cm, and its area is less than 0.015cm2, and the resistivity of Colophonium is very big, according to formula R=ρ L/S it can be seen that after in emulsified asphalt, moisture scatters and disappears completely, its resistance value will increase rapidly, and therefore resistance value is considered as the breakdown of emulsion time of emulsified asphalt when being 10000 Ω。
When the time is 34s, between resistor disc, emulsified asphalt resistance value is more than 10000 Ω, and therefore the de-emulsification speed of surveyed emulsified asphalt is 34s。
Claims (6)
1. based on the emulsified asphalt breakdown of emulsion time tester of resistance value, it is characterised in that: include Colophonium paint finishing, heating detection system and support, wherein, Colophonium paint finishing includes bituminous pitch storing case (11), bitumenpump (12), Colophonium conduit (13) and Asphalt-distributing spray head (14), heating detection system includes stone plate (21), temperature sensor (22), resistor disc (23), heater (24) and base (25), bituminous pitch storing case (11), bitumenpump (12) and Asphalt-distributing spray head (14) from top to bottom sequentially connect through Colophonium conduit (13), and Asphalt-distributing spray head (14) is arranged on support and towards stone plate (21), stone plate (21), heater (24) and base (25) are from top to bottom sequentially connected with, and temperature sensor (22) and resistor disc (23) may be contained within stone plate (21) upper surface, are provided with processor, processor and bituminous pitch storing case (11) in base (25), bitumenpump (12), heater (24), temperature sensor (22), resistor disc is connected by electric wire between (23)。
2. the emulsified asphalt breakdown of emulsion time tester based on resistance value according to claim 1, it is characterised in that: described support is provided with air blown producer (31)。
3. the emulsified asphalt breakdown of emulsion time tester based on resistance value according to claim 1, it is characterised in that: between heater (24) and base (25), it is provided with thermal insulation board (26)。
4. the emulsified asphalt breakdown of emulsion time tester based on resistance value according to claim 1, it is characterised in that: the heating-up temperature of described bituminous pitch storing case (11) is 20～70 DEG C。
5. the method that the emulsified asphalt breakdown of emulsion time tester based on resistance value described in claim 1 tests the emulsified asphalt breakdown of emulsion time, it is characterised in that: comprise the following steps:
Step 1, adds in emulsified asphalt storage bin by emulsified asphalt, and heating is to 50～70 DEG C；
Step 2, heats stone plate to 30～50 DEG C；
Step 3, is sprayed on stone plate by emulsified asphalt, the resistance value between record resistor disc；
Step 4, the time when resistance value is more than 10000 Ω is the emulsified asphalt breakdown of emulsion time。
6. the method that the emulsified asphalt breakdown of emulsion time tester based on resistance value according to claim 5 tests the emulsified asphalt breakdown of emulsion time, it is characterised in that: in step 3, the fountain height of emulsified asphalt is 20～200g。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610067890.7A CN105699435B (en) | 2016-01-31 | 2016-01-31 | Testing device and method for emulsion breaking time of emulsified asphalt based on resistance value |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610067890.7A CN105699435B (en) | 2016-01-31 | 2016-01-31 | Testing device and method for emulsion breaking time of emulsified asphalt based on resistance value |
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| CN105699435A true CN105699435A (en) | 2016-06-22 |
| CN105699435B CN105699435B (en) | 2017-05-17 |
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| CN201610067890.7A Expired - Fee Related CN105699435B (en) | 2016-01-31 | 2016-01-31 | Testing device and method for emulsion breaking time of emulsified asphalt based on resistance value |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501080A (en) * | 2016-11-28 | 2017-03-15 | 兰州理工大学 | Emulsified asphalt breakdown of emulsion time test method based on comprcssive strength |
| CN113218810A (en) * | 2021-04-30 | 2021-08-06 | 西安公路研究院 | Method for measuring demulsification speed of emulsified asphalt |
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| US5551940A (en) * | 1995-07-06 | 1996-09-03 | The Lane Construction Corporation | Apparatus for separating aggregates from an asphalt-aggregate mixture |
| CN2848925Y (en) * | 2005-11-29 | 2006-12-20 | 美的集团有限公司 | Emulsified asphalt spraying device |
| CN203551496U (en) * | 2013-10-30 | 2014-04-16 | 兰州交通大学 | Demulsification velocity tester for emulsified asphalt |
| CN104947574A (en) * | 2015-05-19 | 2015-09-30 | 徐州徐工筑路机械有限公司 | Multifunctional asphalt pavement maintenance vehicle |
-
2016
- 2016-01-31 CN CN201610067890.7A patent/CN105699435B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5551940A (en) * | 1995-07-06 | 1996-09-03 | The Lane Construction Corporation | Apparatus for separating aggregates from an asphalt-aggregate mixture |
| CN2848925Y (en) * | 2005-11-29 | 2006-12-20 | 美的集团有限公司 | Emulsified asphalt spraying device |
| CN203551496U (en) * | 2013-10-30 | 2014-04-16 | 兰州交通大学 | Demulsification velocity tester for emulsified asphalt |
| CN104947574A (en) * | 2015-05-19 | 2015-09-30 | 徐州徐工筑路机械有限公司 | Multifunctional asphalt pavement maintenance vehicle |
Non-Patent Citations (2)
| Title |
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| 交通运输部公路科学研究院: "《公路工程沥青及沥青混合料试验规程》", 1 December 2011 * |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501080A (en) * | 2016-11-28 | 2017-03-15 | 兰州理工大学 | Emulsified asphalt breakdown of emulsion time test method based on comprcssive strength |
| CN106501080B (en) * | 2016-11-28 | 2019-11-05 | 兰州理工大学 | Emulsified asphalt demulsification time test method based on compression strength |
| CN113218810A (en) * | 2021-04-30 | 2021-08-06 | 西安公路研究院 | Method for measuring demulsification speed of emulsified asphalt |
| CN113218810B (en) * | 2021-04-30 | 2024-07-09 | 西安公路研究院 | Method for measuring demulsification speed of emulsified asphalt |
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| CN105699435B (en) | 2017-05-17 |
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