CN104535602A - Device for testing freezing resistance of salt storage asphalt mixtures and testing method thereof - Google Patents
Device for testing freezing resistance of salt storage asphalt mixtures and testing method thereof Download PDFInfo
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- CN104535602A CN104535602A CN201410816414.1A CN201410816414A CN104535602A CN 104535602 A CN104535602 A CN 104535602A CN 201410816414 A CN201410816414 A CN 201410816414A CN 104535602 A CN104535602 A CN 104535602A
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Abstract
The invention discloses a device for testing freezing resistance of salt storage asphalt mixtures and a testing method thereof. The device comprises a box body, wherein a door is formed in the front side of the box body; a bracket, a temperature acquisition probe, an electronic thermometer, a direct current power supply, an ampere meter, a refrigerating system, a metal positive electrode probe, a metal negative electrode probe and a container with a top opening are fixed in the box body; a display and a power main switch are arranged on the side surface of the box body; the upper end of the metal positive electrode probe, the upper end of the metal negative electrode probe and the upper end of the temperature acquisition probe are connected with the side surface of a cross rod; the temperature acquisition probe is connected with the input end of the electronic thermometer; the metal positive electrode probe is connected with the positive pole of the direct current power supply; the metal negative electrode probe is connected with the negative pole of the direct current power supply by virtue of the ampere meter; and the output end of the ampere meter and the output end of the electronic thermometer are connected with the input end of the display. According to the device disclosed by the invention, the freezing resistance of the salt storage asphalt mixtures can be accurately measured.
Description
Technical field
The invention belongs to highway pavement technical field of measurement and test, relate to one and store salt asphalt freezing performance testing device and test method thereof.
Background technology
Winter road snow to freeze be the difficult problem of puzzlement traffic safety always, usually need to employ a large amount of manpower and materials and remove road snow, start the research that active suppression freezes road surface thus.Active suppression freezing technology is in the process of laying of roadway, in compound, add special additive, makes road surface be provided with the specific function of initiatively snow melt deicing.In active suppression freezing technology, one of most typical application is exactly store salt bituminous pavement.Storing that salt bituminous pavement refers to add in asphalt with salt is the additive of principle active component, makes road surface itself have the function that initiatively melting ice and snow is freeze proof.Store salt bituminous pavement because its melting ice and snow is effective, construction technology is simply easy to promote and is widely used.The major function storing salt bituminous pavement has two, melting road surface accumulated snow and freezing, and wherein freezing is an one critical function, how to evaluate the Important Problems that salt is research from the freezing effect of snow melt compound under low temperature, the environment that soaks.Also be no lack of the exploration had in this respect in domestic correlative study, the method proposed be all mostly based on measure store salt asphalt soak after the salt concentration of solution, indirectly evaluate its freezing performance, this kind of method complex operation, error are larger.So far a kind of quick, directly perceived, easy evaluation appts and method is not had to occur.
Summary of the invention
The object of the invention is to the shortcoming overcoming above-mentioned prior art, provide one and store salt asphalt freezing performance testing device and test method thereof, this device and test method thereof can be measured accurately and store salt asphalt freezing performance.
For achieving the above object, the salt asphalt freezing performance testing device that stores of the present invention comprises casing, the front of casing is provided with door, casing internal fixtion has support, temperature acquisition probe, electronic thermometer, direct supply, reometer, refrigeration system, positively charged metal pole probe, metal negative electrode probe and open-topped container, and the side of casing is provided with display and battery main switch;
Described support is made up of cross bar and montant, the bottom of box inside is fixed in one end of montant, one end of cross bar is connected with the side of the montant other end, the upper end of positively charged metal pole probe, the upper end of metal negative electrode probe and the upper end of temperature acquisition probe are all connected with the side of cross bar, temperature acquisition probe is connected with the input end of electronic thermometer, positively charged metal pole probe is connected with the positive pole of direct supply, metal negative electrode probe is connected with the negative pole of direct supply through reometer, the output terminal of reometer and the output terminal of electronic thermometer are all connected with the input end of display, the salt asphalt rut plate test specimen that stores to be measured is positioned at described container, and temperature acquisition probe, positively charged metal pole probe and metal negative electrode probe are all positioned to be measured storing directly over salt asphalt rut plate test specimen.
The side opening of described crossbar end is provided with through hole, and montant is through described through hole, and screw contacts with montant through the side of cross bar and to be fixedly connected with montant by cross bar.
The bottom of described casing is provided with some bearings.
Described container is insulated plastic hopper, and the inside length, width and height of container are respectively 300mm, 300mm and 120mm.
Being made by insulation material of described casing.
The test method storing salt asphalt freezing performance testing device of the present invention comprises the following steps:
1) door on casing is opened, the salt asphalt rut plate test specimen that stores to be measured is positioned in container, then in container, distilled water is added, the water surface of distilled water is made to store salt asphalt rut plate test specimen upper surface 3mm higher than to be measured, leave standstill 10min, make the snow melt stored in salt asphalt rut plate test specimen to be measured become to analyze, thus form water membrane at the salt asphalt rut plate test specimen upper surface that stores to be measured;
2) rotary screw, regulate the height of cross bar, the lower end of temperature acquisition probe, the lower end of positively charged metal pole probe and metal negative electrode probe lower end are all contacted with the upper surface of described moisture film, then by screw, cross bar is fixed on montant, then close the door on casing;
3) opening power master switch makes refrigeration system normally work, and then the temperature in casing is declined, electronic thermometer is by the temperature information of moisture film described in temperature acquisition probe Real-time Collection, and show described temperature information by display, reometer gathers the current information in loop, place simultaneously, and is shown on display by described current information;
4) along with the decline of temperature in casing, moisture film is lowered the temperature gradually, start to freeze when its temperature is down to freezing point, the current information shown in observation display and temperature information, when being zero when current value and being all in default scope at Preset Time, record the temperature value in this moment, described temperature value is the freezing point temperature of this moisture film, then obtains according to the freezing point temperature of this moisture film and stores salt asphalt freezing performance;
5) powered-down master switch, opens the door on casing, leaves standstill to ablation, takes out this and to be measuredly stores salt asphalt rut plate test specimen, closes the door on casing.
The present invention has following beneficial effect:
Salt asphalt freezing performance testing device and the test method thereof of storing of the present invention is in test process, water membrane is formed by giving the surface storing salt asphalt rut plate test specimen to be measured, using this moisture film as resistance, lower the temperature again, temperature is when reaching freezing point of solution when moisture film fully charge, current value levels off to zero, when current value is zero, the temperature of moisture film is freezing point, with this freezing point value storing salt asphalt rut plate surface of test piece moisture film to be measured to judge that this stores the icing performance of salt asphalt, freezing point is lower, then show that the freezing performance that this stores salt asphalt is better, thus accurately realize the test storing salt asphalt freezing performance, structure is simple, easy to operate, practicality is extremely strong.
Accompanying drawing explanation
Fig. 1 is the structural representation of casing 1 in the present invention;
Fig. 2 is the structural representation of casing 1 inside in the present invention.
Wherein, 1 be casing, 2 be door, 3 be display, 4 be battery main switch, 5 be electronic thermometer, 6 be direct supply, 7 be reometer, 8 be temperature acquisition probe, 91 be positively charged metal pole probe, 92 be metal negative electrode probe, 101 be montant, 102 be cross bar, 11 be screw, 12 be refrigeration system, 13 be container, 14 be moisture film, 15 store salt asphalt rut plate test specimen for be measured.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail:
With reference to figure 1 and Fig. 2, the salt asphalt freezing performance testing device that stores of the present invention comprises casing 1, the front of casing 1 is provided with door 2, casing 1 internal fixtion has support, temperature acquisition probe 8, electronic thermometer 5, direct supply 6, reometer 7, refrigeration system 12, positively charged metal pole probe 91, metal negative electrode probe 92 and open-topped container 13, and the side of casing 1 is provided with display 3 and battery main switch 4, described support is made up of cross bar 102 and montant 101, the bottom inside casing 1 is fixed in one end of montant 101, one end of cross bar 102 is connected with the side of montant 101 other end, the upper end of positively charged metal pole probe 91, the upper end of metal negative electrode probe 92 and the upper end of temperature acquisition probe 8 are all connected with the side of cross bar 102, temperature acquisition probe 8 is connected with the input end of electronic thermometer 5, positively charged metal pole probe 91 is connected with the positive pole of direct supply 6, metal negative electrode probe 92 is connected through the negative pole of reometer 7 with direct supply 6, the output terminal of reometer 7 and the output terminal of electronic thermometer 5 are all connected with the input end of display 3, the salt asphalt rut plate test specimen 15 that stores to be measured is positioned at described container 13, and temperature acquisition probe 8, positively charged metal pole probe 91 and metal negative electrode probe 92 are all positioned to be measured storing directly over salt asphalt rut plate test specimen 15.
It should be noted that, the side opening of described cross bar 102 end is provided with through hole, montant 101 is through described through hole, screw 11 contacts with montant 101 through the side of cross bar 102 and to be fixedly connected with montant 101 by cross bar 102, the bottom of casing 1 is provided with some bearings, container 13 is insulated plastic hopper, and the inside length, width and height of container 13 are respectively 300mm, 300mm and 120mm, being made by insulation material of casing 1.
The test method storing salt asphalt freezing performance testing device of the present invention comprises the following steps:
1) door 2 on casing 1 is opened, the salt asphalt rut plate test specimen 15 that stores to be measured is positioned in container 13, then in container 13, distilled water is added, the water surface of distilled water is made to store salt asphalt rut plate test specimen 15 upper surface 3mm higher than to be measured, leave standstill 10min, make the snow melt stored in salt asphalt rut plate test specimen 15 to be measured become to analyze, thus form water membrane 14 at salt asphalt rut plate test specimen 15 upper surface that stores to be measured;
2) rotary screw 11, regulate the height of cross bar 102, the lower end of temperature acquisition probe 8, the lower end of positively charged metal pole probe 91 and metal negative electrode probe 92 lower end are all contacted with the upper surface of described moisture film 14, by screw 11, cross bar 102 is fixed on montant 101 again, then closes the door 2 on casing 1;
3) opening power master switch 4 makes refrigeration system 12 normally work, and then the temperature in casing 1 is declined, electronic thermometer 5 is by the temperature information of moisture film 14 described in temperature acquisition probe 8 Real-time Collection, and show described temperature information by display 3, reometer 7 gathers the current information in loop, place simultaneously, and is shown on display 3 by described current information;
4) along with the decline of temperature in casing 1, moisture film 14 is lowered the temperature gradually, start to freeze when its temperature is down to freezing point, the current information of display in observation display 3 and temperature information, when being zero when current value and being all in default scope at Preset Time, record the temperature value in this moment, described temperature value is the freezing point temperature of this moisture film 14, then obtain according to the freezing point temperature of this moisture film 14 and store salt asphalt freezing performance, freezing point is lower, then show that the freezing performance that this stores salt asphalt is better;
5) powered-down master switch 4, opens the door 2 on casing 1, leaves standstill to ablation, takes out this and to be measuredly stores salt asphalt rut plate test specimen 15, closes the door 2 on casing 1.
Claims (6)
1. one kind stores salt asphalt freezing performance testing device, it is characterized in that, comprise casing (1), the front of casing (1) is provided with door (2), casing (1) internal fixtion has support, temperature acquisition probe (8), electronic thermometer (5), direct supply (6), reometer (7), refrigeration system (12), positively charged metal pole probe (91), metal negative electrode probe (92) and open-topped container (13), and the side of casing (1) is provided with display (3) and battery main switch (4);
Described support is made up of cross bar (102) and montant (101), the bottom of casing (1) inner side is fixed in one end of montant (101), one end of cross bar (102) is connected with the side of montant (101) other end, the upper end of positively charged metal pole probe (91), the upper end of metal negative electrode probe (92) and the upper end of temperature acquisition probe (8) are all connected with the side of cross bar (102), temperature acquisition probe (8) is connected with the input end of electronic thermometer (5), positively charged metal pole probe (91) is connected with the positive pole of direct supply (6), metal negative electrode probe (92) is connected through the negative pole of reometer (7) with direct supply (6), the output terminal of reometer (7) and the output terminal of electronic thermometer (5) are all connected with the input end of display (3), salt asphalt rut plate test specimen (15) that stores to be measured is positioned at described container (13), and temperature acquisition probe (8), positively charged metal pole probe (91) and metal negative electrode probe (92) are all positioned to be measured storing directly over salt asphalt rut plate test specimen (15).
2. according to claim 1ly store salt asphalt freezing performance testing device, it is characterized in that, the side opening of cross bar (102) end is provided with through hole, montant (101) is through described through hole, and screw (11) to contact with montant (101) through the side of cross bar (102) and to be fixedly connected with montant (101) by cross bar (102).
3. according to claim 1ly store salt asphalt freezing performance testing device, it is characterized in that, the bottom of described casing (1) is provided with some bearings.
4. according to claim 1ly store salt asphalt freezing performance testing device, it is characterized in that, described container (13) is insulated plastic hopper, and the inside length, width and height of container (13) are respectively 300mm, 300mm and 120mm.
5. according to claim 1ly store salt asphalt freezing performance testing device, it is characterized in that, being made by insulation material of described casing (1).
6. store a test method for salt asphalt freezing performance testing device, it is characterized in that, store salt asphalt freezing performance testing device based on according to claim 2, comprise the following steps:
1) door (2) on casing (1) is opened, salt asphalt rut plate test specimen (15) that stores to be measured is positioned in container (13), then in container (13), distilled water is added, the water surface of distilled water is made to store salt asphalt rut plate test specimen (15) upper surface 3mm higher than to be measured, leave standstill 10min, make the snow melt stored in salt asphalt rut plate test specimen (15) to be measured become to analyze, thus form water membrane (14) at salt asphalt rut plate test specimen (15) upper surface that stores to be measured;
2) rotary screw (11), regulate the height of cross bar (102), the lower end of temperature acquisition probe (8), the lower end of positively charged metal pole probe (91) and metal negative electrode probe (92) lower end are all contacted with the upper surface of described moisture film (14), by screw (11), cross bar (102) is fixed on montant (101) again, then closes the door (2) on casing (1);
3) opening power master switch (4) makes refrigeration system (12) normally work, and then the temperature in casing (1) is declined, electronic thermometer (5) is by the temperature information of moisture film (14) described in temperature acquisition probe (8) Real-time Collection, and show described temperature information by display (3), reometer (7) gathers the current information in loop, place simultaneously, and is shown to by described current information on display (3);
4) along with the decline of casing (1) interior temperature, moisture film (14) is lowered the temperature gradually, start to freeze when its temperature is down to freezing point, the current information of display in observation display (3) and temperature information, when being zero when current value and being all in default scope at Preset Time, record the temperature value in this moment, described temperature value is the freezing point temperature of this moisture film (14), then obtains according to the freezing point temperature of this moisture film (14) and stores salt asphalt freezing performance;
5) powered-down master switch (4), open the door (2) on casing (1), leave standstill to ablation, take out this and to be measuredly store salt asphalt rut plate test specimen (15), close the door (2) on casing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410816414.1A CN104535602A (en) | 2014-12-24 | 2014-12-24 | Device for testing freezing resistance of salt storage asphalt mixtures and testing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410816414.1A CN104535602A (en) | 2014-12-24 | 2014-12-24 | Device for testing freezing resistance of salt storage asphalt mixtures and testing method thereof |
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| CN104535602A true CN104535602A (en) | 2015-04-22 |
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| CN201410816414.1A Pending CN104535602A (en) | 2014-12-24 | 2014-12-24 | Device for testing freezing resistance of salt storage asphalt mixtures and testing method thereof |
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| CN105954316A (en) * | 2016-06-03 | 2016-09-21 | 长沙理工大学 | Indoor experimental device and method for icy pavement detection |
| CN106018462A (en) * | 2016-07-19 | 2016-10-12 | 哈尔滨工业大学 | Method for measuring asphalt mortar freezing point based on electrochemical principle |
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| CN110208455A (en) * | 2019-06-06 | 2019-09-06 | 中盐金坛盐化有限责任公司 | A method of measurement frost-resistant material mixture release conditions |
| CN112255265A (en) * | 2020-10-20 | 2021-01-22 | 山东交通学院 | Test device and method for determining icing state of salt solution |
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| CN112577409A (en) * | 2020-12-10 | 2021-03-30 | 广州添利电子科技有限公司 | PCB through hole tin layer thickness equipment and electrochemical timing electric quantity method testing method thereof |
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Cited By (13)
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| CN105628545B (en) * | 2016-03-29 | 2018-09-28 | 长安大学 | A kind of test method and device for evaluation path ice-melt material ice-melt performance |
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| CN105954316A (en) * | 2016-06-03 | 2016-09-21 | 长沙理工大学 | Indoor experimental device and method for icy pavement detection |
| CN105954316B (en) * | 2016-06-03 | 2019-03-12 | 长沙理工大学 | A kind of indoor experimental apparatus and method of detection icy on road |
| CN106018462A (en) * | 2016-07-19 | 2016-10-12 | 哈尔滨工业大学 | Method for measuring asphalt mortar freezing point based on electrochemical principle |
| CN107632040B (en) * | 2017-09-11 | 2019-10-01 | 天津工业大学 | A kind of textile surface refuses ice performance testing device and its test method |
| CN107632040A (en) * | 2017-09-11 | 2018-01-26 | 天津工业大学 | A kind of textile surface refuses ice performance testing device and its test method |
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| CN112255127A (en) * | 2020-10-12 | 2021-01-22 | 四川省公路规划勘察设计研究院有限公司 | Low-freezing-point pavement long-term effectiveness evaluation device and method considering service environment |
| CN112255127B (en) * | 2020-10-12 | 2021-10-08 | 四川省公路规划勘察设计研究院有限公司 | Low-freezing-point pavement long-term effectiveness evaluation device and method considering service environment |
| CN112255265A (en) * | 2020-10-20 | 2021-01-22 | 山东交通学院 | Test device and method for determining icing state of salt solution |
| CN112577409A (en) * | 2020-12-10 | 2021-03-30 | 广州添利电子科技有限公司 | PCB through hole tin layer thickness equipment and electrochemical timing electric quantity method testing method thereof |
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Application publication date: 20150422 |