CN102944491B - From snow-melting asphalt pavement admixture Thaw performance evaluation device and assessment method thereof - Google Patents
From snow-melting asphalt pavement admixture Thaw performance evaluation device and assessment method thereof Download PDFInfo
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- CN102944491B CN102944491B CN201210366147.3A CN201210366147A CN102944491B CN 102944491 B CN102944491 B CN 102944491B CN 201210366147 A CN201210366147 A CN 201210366147A CN 102944491 B CN102944491 B CN 102944491B
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Abstract
The invention discloses a kind of from snow-melting asphalt pavement admixture Thaw performance evaluation device and assessment method thereof, this device comprises transparent constant temperature oven, some measurement units are arranged with in transparent constant temperature oven, every measurement unit comprises the electronic scale being arranged at bottom, electronic scale is placed with lower container, suspension arm by being fixed on transparent constant temperature oven upper end directly over described lower container is linked with upper container, the end opening of described upper container is aimed at the opening of lower container, and the bottom of described lower container is provided with densimeter; Densimeter signal wire often in the lower container of group is unified after drawing to be connected on concentration display; Temperature and hygrometer is also provided with in described transparent constant temperature oven.Device of the present invention, by rational structural design, can carry out evaluating from the Thaw performance of snow-melting asphalt pavement admixture easily, and device structure is simple, easy and simple to handle, measures accurately.
Description
Technical field
The present invention relates to road engineering from snow-melting asphalt pavement admixture Thaw performance field tests.A kind of from snow-melting asphalt pavement admixture Thaw performance evaluation device in particular to proposition.
Background technology
Laboratory preparation, when snow-melting asphalt pavement admixture, is an extremely important index from the Thaw performance of snow-melting asphalt pavement admixture, and the Thaw performance how testing additive is quickly and efficiently the key link of test.According to snow melt mechanism, a certain amount of IGD additive is dispensed onto on ice face, because the chemical potential difference of solid liquid phase can not coexist, when solid ice and snow changes liquid water into, the solid phase that always chemically gesture is high shifts to the liquid phase that chemical potential is lower, until the chemical potential of the two is equal, realize the object of ice-melt snow.
The method of at present comparatively general mensuration ice-melt snow speed has two kinds: the first set time, measure the amount of snowmelt amount in this time, is the time needed for ice that the deicer measuring certain mass has melted certain mass completely in addition.Consider simplicity and operability, the present invention adopts the former, that is: the Sheng measuring device 3 that 10 grades are large is got, built-in equivalent 250g water, freezes in fact, is sprinkling upon on ice and snow by the IGD additive of equivalent, the solution quality incorporating and contain in measuring device 3 is surveyed every one hour, according to the solution quality in each moment, make accumulation ice storage-time curve, then ice-melt rate curve is to this curve differentiate.
Summary of the invention
The object of the invention is to the shortcoming overcoming above-mentioned prior art, there is provided a kind of from snow-melting asphalt pavement admixture Thaw performance evaluation device and assessment method thereof, this device is by rational structural design, can carry out easily evaluating from the Thaw performance of snow-melting asphalt pavement admixture, and device structure is simple, easy and simple to handle, measure accurately.
The object of the invention is to solve by the following technical programs:
This from snow-melting asphalt pavement admixture Thaw performance evaluation device, comprise transparent constant temperature oven, some measurement units are arranged with in transparent constant temperature oven, every measurement unit comprises the electronic scale being arranged at bottom, electronic scale is placed with lower container, suspension arm by being fixed on transparent constant temperature oven upper end directly over described lower container is linked with upper container, and the end opening of described upper container is aimed at the opening of lower container, and the bottom of described lower container is provided with densimeter; Densimeter signal wire often in the lower container of group is unified after drawing to be connected on concentration display; Temperature and hygrometer is also provided with in described transparent constant temperature oven.
The opening of above-mentioned lower container is provided with volatilization prevention dividing plate.
Above-mentioned upper container is inverted bottomless bottle, and its lower end bottleneck is aimed at the opening of lower container.
Above-mentioned concentration display is arranged on transparent constant temperature oven upper top cover, and the middle part of described transparent constant temperature oven is provided with crossbearer, and the densimeter signal wire often in the lower container of group leads to concentration display along crossbearer after drawing.
The chamber wall of above-mentioned lower container offers the aperture of drawing densimeter signal wire.
The bottom of above-mentioned transparent constant temperature oven is provided with refrigeration system.
Above-mentioned upper container and lower container use discarded beverage bottle to make.
Be arranged with ten measurement units in above-mentioned transparent constant temperature oven, be divided into two row's arrangements.
The present invention also proposes a kind ofly to adopt the above-mentioned assessment method from snow-melting asphalt pavement admixture Thaw performance evaluation device, comprises the following steps:
1) open refrigeration system cooling, make transparent constant temperature oven reach test temperature, measuring 250g distilled water with the lower container of every measurement unit, to put into transparent constant temperature oven respectively freezing;
2) water to be distilled freezes in fact completely, irregular the facing down of the lower container medium floe often organized is put into the upper container of every measurement unit, and is fixed on suspension arm by upper container;
3) weighing 10g additive is spread in uniform on the ice cube in every measurement unit upper container, weighs the initial mass m often organizing dry lower container
1, m
2, m
3, m
4, m
5, m
6, m
7, m
8, m
9, m
10, the mean value getting two values successively obtains M
1, M
2, M
3, M
4, M
5;
4) shut transparent constant temperature oven chamber door, constant temperature records the temperature and humidity in transparent constant temperature oven, reads the numerical value m on 10 electronic scaless after placing 1h
11, m
12, m
13, m
14, m
15, m
16, m
17, m
18, m
19, m
20, that gets two values successively is averaging worth M
6, M
7, M
8, M
9, M
10; Read a secondary data at interval of 1h, and record, quality is averaged;
5) according to the quality average in each moment, draw accumulation ice storage-time curve, then ice-melt rate curve is to this curve differentiate.
The technology of the present invention is improved further and is with feature:
1) the present invention can detect the Thaw performance from snow-melting asphalt pavement admixture efficient quick, provides reliable test figure.
2) upper container of the present invention and lower container use discarded beverage bottle to make, and environmental protection and saving reduces manufacturing cost.
3) constant temperature oven of the present invention is transparent cabinet, directly can observe the response situation of closed test, both facilitated, and can reduce again the impact of unpacking and causing to interior environment temperature from outside, improves test degree of accuracy.
4) concentration determination system is equipped with in the present invention, can the convenient and swift concentration reading any time melting liquid.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Wherein: 1 is additive; 2 is ice cube; 3 is lower container; 4 is upper container; 5 is volatilization prevention dividing plate; 6 is suspension arm; 7 is melting liquid; 8 is refrigeration system; 9 is transparent constant temperature oven; 10 is electronic scale; 11 is temperature and hygrometer; 12 is signal wire; 13 is crossbearer; 14 is concentration display; 15 is aperture; 16 is densimeter.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail:
See Fig. 1, of the present invention from snow-melting asphalt pavement admixture Thaw performance evaluation device, comprise transparent constant temperature oven 9, some measurement units are arranged with in transparent constant temperature oven 9, every measurement unit comprises the electronic scale 10 being arranged at bottom, and electronic scale 10 is placed with lower container 3, and the suspension arm 6 by being fixed on transparent constant temperature oven 9 upper end directly over lower container 3 is linked with upper container 4, the end opening of upper container 4 is aimed at the opening of lower container 3, and the bottom of lower container 3 is provided with densimeter 16; Densimeter 16 signal wire often in the lower container 3 of group is unified after drawing to be connected on concentration display 14; Temperature and hygrometer 11 is also provided with in transparent constant temperature oven 9.The opening of described lower container 3 is provided with volatilization prevention dividing plate 5.Upper container 4 is inverted bottomless bottle, and its lower end bottleneck is aimed at the opening of lower container 3.Concentration display 14 is arranged on transparent constant temperature oven 9 upper top cover, and the middle part of described transparent constant temperature oven 9 is provided with crossbearer 13, and densimeter 16 signal wire often in the lower container 3 of group leads to concentration display 14 along crossbearer 13 after drawing.The chamber wall of lower container 3 offers the aperture 15 of drawing densimeter 16 signal wire 12.The bottom of described transparent constant temperature oven 9 is provided with refrigeration system 8.Upper container 4 of the present invention can use discarded beverage bottle to make with lower container 3.
Be wherein a kind of preferred embodiment of the present invention described in Fig. 1, in its transparent constant temperature oven 9, be arranged with ten measurement units, be divided into two row's arrangements.Below with this embodiment for foundation, the present invention proposes a kind of from snow-melting asphalt pavement admixture Thaw performance assessment method, specifically comprises the following steps:
1) open refrigeration system 8 to lower the temperature, make transparent constant temperature oven 9 reach test temperature, measuring 250g distilled water with the lower container 3 of every measurement unit, to put into transparent constant temperature oven 9 respectively freezing;
2) water to be distilled freezes in fact completely, irregular the facing down of lower container 3 medium floe often organized is put into the upper container 4 of every measurement unit, and is fixed on suspension arm 6 by upper container 4;
3) weigh 10g additive 1(IGD additive) be spread in uniform in every measurement unit upper container 4 ice cube 2 on, weigh the initial mass m often organizing dry lower container 3
1, m
2, m
3, m
4, m
5, m
6, m
7, m
8, m
9, m
10, the mean value getting two values successively obtains M
1, M
2, M
3, M
4, M
5;
4) shut transparent constant temperature oven 9 chamber door, constant temperature now can gather melting liquid 7, record the temperature and humidity in transparent constant temperature oven 9, read the numerical value m on 10 electronic scaless 10 after placing 1h in lower container 3
11, m
12, m
13, m
14, m
15, m
16, m
17, m
18, m
19, m
20, that gets two values successively is averaging worth M
6, M
7, M
8, M
9, M
10; Read a secondary data at interval of 1h, and record, quality is averaged;
5) according to the quality average in each moment, draw accumulation ice storage-time curve, then ice-melt rate curve is to this curve differentiate.
Claims (2)
1. one kind from snow-melting asphalt pavement admixture Thaw performance evaluation device, it is characterized in that, comprise transparent constant temperature oven (9), some measurement units are arranged with in transparent constant temperature oven (9), every measurement unit comprises the electronic scale (10) being arranged at bottom, electronic scale (10) is placed with lower container (3), suspension arm (6) by being fixed on transparent constant temperature oven (9) upper end directly over described lower container (3) is linked with upper container (4), the end opening of described upper container (4) is aimed at the opening of lower container (3), the bottom of described lower container (3) is provided with densimeter (16), densimeter (16) signal wire often in the lower container (3) of group is unified after drawing to be connected on concentration display (14), temperature and hygrometer (11) is also provided with in described transparent constant temperature oven (9), the opening of described lower container (3) is provided with volatilization prevention dividing plate (5), described upper container (4) is inverted bottomless bottle, and its lower end bottleneck is aimed at the opening of lower container (3), described concentration display (14) is arranged on transparent constant temperature oven (9) upper top cover, the middle part of described transparent constant temperature oven (9) is provided with crossbearer (13), and densimeter (16) signal wire often in the lower container (3) of group leads to concentration display (14) along crossbearer (13) after drawing, the chamber wall of described lower container (3) offers the aperture (15) of drawing densimeter (16) signal wire, the bottom of described transparent constant temperature oven (9) is provided with refrigeration system (8), described upper container (4) and lower container (3) use discarded beverage bottle to make, be arranged with ten measurement units in described transparent constant temperature oven (9), be divided into two row's arrangements.
2. adopt the assessment method from snow-melting asphalt pavement admixture Thaw performance evaluation device described in claim 1, it is characterized in that, comprise the following steps:
1) open refrigeration system (8) cooling, make transparent constant temperature oven (9) reach test temperature, measuring 250g distilled water with the lower container (3) of every measurement unit, to put into transparent constant temperature oven (9) respectively freezing;
2) water to be distilled freezes in fact completely, by the irregular upper container (4) putting into every measurement unit that faces down of lower container (3) medium floe often organized, and upper container (4) is fixed on suspension arm (6);
3) weighing 10g additive is spread in uniform on the ice cube (2) in every measurement unit upper container (4), weighs the initial mass m often organizing dry lower container (3)
1, m
2, m
3, m
4, m
5, m
6, m
7, m
8, m
9, m
10, the mean value getting two values successively obtains M
1, M
2, M
3, M
4, M
5;
4) shut transparent constant temperature oven (9) chamber door, constant temperature records the temperature and humidity in transparent constant temperature oven (9), reads the numerical value m on 10 electronic scaless (10) after placing 1h
11, m
12, m
13, m
14, m
15, m
16, m
17, m
18, m
19, m
20, that gets two values successively is averaging worth M
6, M
7, M
8, M
9, M
10; Read a secondary data at interval of 1h, and record, quality is averaged;
5) according to the quality average in each moment, draw accumulation ice storage-time curve, then ice-melt rate curve is to this curve differentiate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210366147.3A CN102944491B (en) | 2012-09-27 | 2012-09-27 | From snow-melting asphalt pavement admixture Thaw performance evaluation device and assessment method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210366147.3A CN102944491B (en) | 2012-09-27 | 2012-09-27 | From snow-melting asphalt pavement admixture Thaw performance evaluation device and assessment method thereof |
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| Publication Number | Publication Date |
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| CN102944491A CN102944491A (en) | 2013-02-27 |
| CN102944491B true CN102944491B (en) | 2015-08-05 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103698251B (en) * | 2013-12-16 | 2016-07-13 | 长安大学 | Asphalt cold repairing low temperature flowability test device and test method |
| CN104237323B (en) * | 2014-10-10 | 2017-06-16 | 北京市政路桥建材集团有限公司 | The long-lasting test method of snow melt asphalt snow melt |
| CN104807980B (en) * | 2015-05-23 | 2016-04-20 | 叶春波 | A kind of evaluation method of highway pavement Thaw performance |
| CN106092806A (en) * | 2016-07-26 | 2016-11-09 | 天津商业大学 | A kind of freezing beverage melting resistant effect measuring instrument |
| CN106290053A (en) * | 2016-08-19 | 2017-01-04 | 北京市道路工程质量监督站 | A kind of test method testing storage salt asphalt deicing or snow melting ability |
| CN108931475B (en) * | 2018-05-08 | 2020-10-02 | 山东高速济泰城际公路有限公司 | Method for evaluating ice and snow melting effect of slow-release type active ice and snow melting asphalt pavement |
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| CN102175568A (en) * | 2011-01-21 | 2011-09-07 | 长安大学 | Device for evaluating longer-term snow-melting property of salinization matter for automatically melting snows on road surface |
| CN102520126A (en) * | 2011-12-15 | 2012-06-27 | 长安大学 | Device for evaluating short-period snow melting performances of salt-applied snow-self melting road surface |
| CN102539651A (en) * | 2011-12-15 | 2012-07-04 | 长安大学 | Snow melting service life predicting device for salt self-snow-melting road surface |
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2012
- 2012-09-27 CN CN201210366147.3A patent/CN102944491B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175568A (en) * | 2011-01-21 | 2011-09-07 | 长安大学 | Device for evaluating longer-term snow-melting property of salinization matter for automatically melting snows on road surface |
| CN102520126A (en) * | 2011-12-15 | 2012-06-27 | 长安大学 | Device for evaluating short-period snow melting performances of salt-applied snow-self melting road surface |
| CN102539651A (en) * | 2011-12-15 | 2012-07-04 | 长安大学 | Snow melting service life predicting device for salt self-snow-melting road surface |
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