CN103900935A - Evaluation method for ice and snow removing effects of coating type anti-freezing road surface - Google Patents
Evaluation method for ice and snow removing effects of coating type anti-freezing road surface Download PDFInfo
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- CN103900935A CN103900935A CN201410112166.2A CN201410112166A CN103900935A CN 103900935 A CN103900935 A CN 103900935A CN 201410112166 A CN201410112166 A CN 201410112166A CN 103900935 A CN103900935 A CN 103900935A
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Abstract
The invention discloses an evaluation method for ice and snow removing effects of a coating type anti-freezing road surface. The evaluation method comprises the following steps: carrying out abrasion with different degrees on the surface of a prepared test piece by using an acceleration and loading abrasion instrument; and analyzing a contact angle between the surface of the test piece and water after the test piece is abraded according to a principle of removing ice and snow by surface coating material, namely a hydrophobic performance, so as to evaluate the ice and snow removing effects of a road surface coating material under different working conditions. When the contact angle is greater, the ice and snow removing effects of the abraded surface coating material of the test piece are better; conversely, when the contact angle is smaller, the ice and snow removing effects of the abraded surface coating material of the test piece are worse. The evaluation method has the advantages of simplicity in operation, rapid testing speed and the like.
Description
Technical field
The evaluation method that the present invention relates to the freeze proof road surface deicing snow of a kind of coating type effect, belongs to traffic engineering technology.
Background technology
Bitumen Pavement Anti-Skid Performance is one of key factor ensureing vehicle safe driving.But the probability that in world wide, extreme climate occurs in recent years greatly increases, the icing phenomenon of China's road snow in winter is comparatively common.Data shows, the attachment coefficient of dry, accumulated snow, the bituminous pavement that freezes is about respectively 0.6,0.2,0.15.Obviously, ice and snow road will have a strong impact on the driving safety of vehicle, and road accident rate is higher.
To processing the icing problem of road snow, for many years, a large amount of research work has been done by road traffic department of various countries, explores the icing method of many removing road snow mantles.These methods can be divided into: the outside deicing technology in road surface, the inner deicing technology in road surface.Wherein the outside deicing technology in road surface can realize by the coating material that applies hydrophobic nature at asphalt mat.In the time that winter, road surface froze, this coating can obviously reduce the cohesive force between ice sheet and road surface, and rolling lower layer icy on road at vehicle can come off from road surface automatically.Adopt machinery or the method for manually rooting out also can process efficiently, easily layer icy on road.But how evaluation table topcoat material deicing effect of different applying working conditions on road is perplexing research worker, user always.At present, the method of evaluation table topcoat material deicing effect is making test section actual measurement deicing effect, though the method can well be evaluated its deicing endurance issues, it is subject to the restriction of factors, and needs to consume a large amount of time, human and material resources etc.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the invention provides the evaluation method of the freeze proof road surface deicing snow of a kind of coating type effect, to solve the method for current employing making experimental road, the technical matters such as the condition such as the method is consuming time, consumption power and weather, starting material is limited.
Technical scheme: for achieving the above object, the technical solution used in the present invention is:
The evaluation method of the freeze proof road surface deicing snow of a kind of coating type effect, combine accelerated loading abrasion test and contact angle analysis experiment, first adopt accelerated loading abrasion instrument to carry out abrasion in various degree to ready test specimen surface, simulate the abrasion situation on real road with this; Then according to the principle of coating material deicing, i.e. its hydrophobicity performance, analyzes the contact angle size with water through test specimen surface after abrasion, evaluates the deicing effect of road surfaces coating material under different operating modes with this; Contact angle is larger shows that the deicing effect of test specimen wear surface coating material is better, otherwise shows that the deicing effect of test specimen wear surface coating material is poorer; When being greater than 90 °, contact angle all shows that test specimen surface still has certain deicing ability; Specifically comprise the steps:
(1) test material preparation: prepare the test specimen of asphalt, then apply a certain amount of deicing coating material at the upper surface of test specimen;
(2) acceleration loads abrasion test: the test specimen that is coated with coating material that step (1) is obtained carries out abrasion in various degree on accelerated loading abrasion instrument (Measuring Device used for asphalt mixture);
(3) hydrophobic nature experiment: the different operating mode test specimens that step (2) is obtained cut into the thin slice that optical video contact angle instrument can be tested, test the contact angle of its wear surface, index using contact angle as evaluation table topcoat material deicing performance, contact angle is larger shows that the deicing effect of test specimen wear surface coating material is better, otherwise shows that the deicing effect of test specimen wear surface coating material is poorer.
Preferably, in described step (1), test specimen is by the moulding of rut forming machine, test specimen be of a size of the wide * of long * high=300*50*50, the mm of unit.
Preferably, in described step (1), the deicing coating material on test specimen surface is divided into 3～7(3～5) inferior even coating, each interval between coating 5～60min(10～60min), to make the coating material on test specimen surface more even; According to the different deicing performances of coating material and the requirement of road surfaces cling property, apply 0.3～1kg/m at test specimen upper surface altogether
2coating material.
Preferably, in described step (3), being packed of cutting out be of a size of the wide * of long * high=50*50*10, the mm of unit, so that can test on contact angle analyser.
Beneficial effect: the evaluation method of the freeze proof road surface deicing of coating type provided by the invention snow effect, simple to operate, be not subject to the impact of external environment, save time and laborsaving, and can reflect preferably the permanance of road deicing snow surface coating.
Brief description of the drawings
Fig. 1 is the test specimen surface of different operating modes and the contact angle of water that adopts the inventive method to record, the wherein contact angle of 1 (a) for recording without abrasion operating mode, the contact angle that 1 (b) records for abrasion 0.5h operating mode, the contact angle that 1 (c) records for abrasion 1h operating mode;
Fig. 2 is the shear resistance schematic diagram at (interface of test specimen wearing surface and ice cube) after different wear intensity test specimen upper surfaces freeze.
Embodiment
Below in conjunction with embodiment, the present invention is further described.
An evaluation method for the freeze proof road surface deicing snow of coating type effect, comprises the following steps:
Step (1): test material preparation
First, prepare the test specimen 1 of stone mastic asphalt (SMA-13), sample dimensions is that the wide * of the long * of 300mm*50mm*50mm(is high); Then surface applies a certain amount of deicing coating material thereon, point 3 coatings, and every minor tick 30 minutes, applies 0.75kg/m at test specimen upper surface altogether
2deicing coating material;
Step (2): accelerated loading abrasion test
The test specimen upper surface that scribbles deicing coating material that step (1) is obtained does not wear away on accelerated loading abrasion instrument (asphalt Measuring Device), simulates the Road Surface situation of firm coating deicing coating material with this;
Step (3): contact angle analysis experiment
The test specimen 1 of step (2) is cut into the required test specimen of contact angle analyser 2, and sample dimensions is that the wide * of the long * of 50mm*50*10mm(is high); Then on contact angle analyser, test the contact angle size of test specimen wearing surface, adopt the contact angle size on pure water and test specimen 2 surfaces to come deicing effect and the permanance thereof of evaluation path deicing coating material; Test result shows that pure water is 136.7 DEG C at the contact angle on test specimen 2 surfaces, illustrates that test specimen surface has good hydrophobic nature, i.e. the very low effect of ice and snow and test specimen surface cohesive force.
Specific embodiment 2
An evaluation method for the freeze proof road surface deicing snow of coating type effect, comprises the following steps:
Step (1): test material preparation
First, prepare the test specimen 1 of stone mastic asphalt (SMA-13), sample dimensions is that the wide * of the long * of 300mm*50mm*50mm(is high); Then surface applies a certain amount of deicing coating material thereon, point 3 coatings, and every minor tick 30 minutes, applies 0.75kg/m at test specimen upper surface altogether
2deicing coating material;
Step (2): accelerated loading abrasion test
The test specimen upper surface that scribbles deicing coating material that step (1) is obtained carries out 2520 abrasion on accelerated loading abrasion instrument (asphalt Measuring Device), to stand the situation of automobile primary driving wheel abrasion on this simulated roadway;
Step (3): contact angle analysis experiment
The test specimen 1 that step (2) has been worn away cuts into the required test specimen of contact angle analyser 2, and sample dimensions is that the wide * of the long * of 50mm*50*10mm(is high); Then on contact angle analyser, test the contact angle size of test specimen wearing surface, adopt the contact angle size on pure water and test specimen 2 surfaces to come deicing effect and the permanance thereof of evaluation path deicing coating material; Test result shows that pure water is 104.3 DEG C at the contact angle on test specimen 2 surfaces, and the test specimen through abrasion in 0.5 hour is described, its surface is very low with the cohesive force of ice and snow, but this cohesive force is higher than the test specimen without abrasion.
Specific embodiment 3
An evaluation method for the freeze proof road surface deicing snow of coating type effect, comprises the following steps:
Step (1): test material preparation
First, prepare the test specimen 1 of stone mastic asphalt (SMA-13), sample dimensions is that the wide * of the long * of 300mm*50mm*50mm(is high); Then surface applies a certain amount of deicing coating material thereon, point 3 coatings, and every minor tick 30 minutes, applies 0.75kg/m at test specimen upper surface altogether
2deicing coating material;
Step (2): accelerated loading abrasion test
The test specimen upper surface that scribbles deicing coating material that step (1) is obtained carries out 5040 abrasion on accelerated loading abrasion instrument (asphalt Measuring Device), to stand the situation of automobile primary driving wheel abrasion on this simulated roadway;
Step (3): contact angle analysis experiment
The test specimen 1 that step (2) has been worn away cuts into the required test specimen of contact angle analyser 2, and sample dimensions is that the wide * of the long * of 50mm*50*10mm(is high); Then on contact angle analyser, test the contact angle size of test specimen wearing surface, adopt the contact angle size on pure water and test specimen 2 surfaces to come deicing effect and the permanance thereof of evaluation path deicing coating material; Test result shows that pure water is 97.1 DEG C at the contact angle on test specimen 2 surfaces, and the test specimen through abrasion in 1.0 hours is described, its surface is still lower with the cohesive force of ice and snow, and sleet is easier on the road surface that has this hydrophober coating remove.
Specific embodiment 4
An evaluation method for the freeze proof road surface deicing snow of coating type effect, comprises the following steps:
Step (1): test material preparation
First, prepare the test specimen 1 of stone mastic asphalt (SMA-13), sample dimensions is that the wide * of the long * of 300mm*50mm*50mm(is high); Then surface applies a certain amount of deicing coating material thereon, point 4 coatings, and every minor tick 20 minutes, applies 0.50kg/m at test specimen upper surface altogether
2deicing coating material;
Step (2): accelerated loading abrasion test
The test specimen upper surface that scribbles deicing coating material that step (1) is obtained carries out 5040 abrasion on accelerated loading abrasion instrument (asphalt Measuring Device), to stand the situation of automobile primary driving wheel abrasion on this simulated roadway;
Step (3): contact angle analysis experiment
The test specimen 1 that step (2) has been worn away cuts into the required test specimen of contact angle analyser 2, and sample dimensions is that the wide * of the long * of 60mm*40*20mm(is high); Then on contact angle analyser, test the contact angle size of test specimen wearing surface, adopt the contact angle size on pure water and test specimen 2 surfaces to come deicing effect and the permanance thereof of evaluation path deicing coating material; Test result shows that pure water is 86.5 DEG C at the contact angle on test specimen 2 surfaces, and the test specimen through abrasion in 1.0 hours be described, and the cohesive force of itself and ice and snow is still lower, and sleet is easier to removing on the road surface that has this hydrophober coating.
Specific embodiment 5
An evaluation method for the freeze proof road surface deicing snow of coating type effect, comprises the following steps:
Step (1): test material preparation
First, prepare the test specimen 1 of stone mastic asphalt (SMA-13), sample dimensions is that the wide * of the long * of 300mm*50mm*50mm(is high); Then surface applies a certain amount of deicing coating material thereon, point 5 coatings, and every minor tick 10 minutes, applies 0.80kg/m at test specimen upper surface altogether
2deicing coating material;
Step (2): accelerated loading abrasion test
The test specimen upper surface that scribbles deicing coating material that step (1) is obtained carries out 5040 abrasion on accelerated loading abrasion instrument (asphalt Measuring Device), to stand the situation of automobile primary driving wheel abrasion on this simulated roadway;
Step (3): contact angle analysis experiment
The test specimen 1 that step (2) has been worn away cuts into the required test specimen of contact angle analyser 2, and sample dimensions is that the wide * of the long * of 60mm*40*20mm(is high); Then on contact angle analyser, test the contact angle size of test specimen wearing surface, adopt the contact angle size on pure water and test specimen 2 surfaces to come deicing effect and the permanance thereof of evaluation path deicing coating material; Test result shows that pure water is 89.7 DEG C at the contact angle on test specimen 2 surfaces, and the test specimen through abrasion in 1.0 hours be described, and the cohesive force of itself and ice and snow is still lower, and sleet is easier to removing on the road surface that has this hydrophober coating.
Adopt shearing experiment to verify the reliability of contact angle index.Fig. 2 is test specimen through after abrasion in various degree, the relation of the shear resistance at (interface of test specimen wearing surface and ice sheet) after test specimen freezes.Because the fewer contact angle of abrasion number of times of test specimen is larger, as shown in Figure 2, contact angle is larger, and the shear resistance at test specimen wearing surface and ice sheet interface is less; And when contact angle < 90, its shear resistance is all less than without the shear resistance of applying coating agent test specimen (3.5Mpa).This illustrates that method of the present invention is to evaluate the effective ways of surface coating agent deicing effect.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (3)
1. an evaluation method for the freeze proof road surface deicing snow of coating type effect, is characterized in that: adopt accelerated loading abrasion instrument to carry out abrasion in various degree to ready test specimen surface; Then according to the principle of coating material deicing, i.e. its hydrophobicity performance, analyzes the contact angle size with water through test specimen surface after abrasion, evaluates the deicing effect of road surfaces coating material under different operating modes with this; Contact angle is larger shows that the deicing effect of test specimen wear surface coating material is better, otherwise shows that the deicing effect of test specimen wear surface coating material is poorer; Specifically comprise the steps:
(1) test material preparation: prepare the test specimen of asphalt, then apply a certain amount of deicing coating material at the upper surface of test specimen;
(2) acceleration loads abrasion test: the test specimen that is coated with coating material that step (1) is obtained carries out abrasion in various degree on accelerated loading abrasion instrument;
(3) hydrophobic nature experiment: the different operating mode test specimens that step (2) is obtained cut into the thin slice that optical video contact angle instrument can be tested, test the contact angle of its wear surface, index using contact angle as evaluation table topcoat material deicing performance, contact angle is larger shows that the deicing effect of test specimen wear surface coating material is better, otherwise shows that the deicing effect of test specimen wear surface coating material is poorer.
2. the evaluation method of the freeze proof road surface deicing of coating type according to claim 1 snow effect, is characterized in that: in described step (1), test specimen is by the moulding of rut forming machine, test specimen be of a size of the wide * of long * high=300*50*50, the mm of unit.
3. the evaluation method of the freeze proof road surface deicing snow of coating type according to claim 1 effect, is characterized in that: in described step (1), the deicing coating material on test specimen surface is divided into 3～7 times and evenly applies, each interval between coating 5～60min; According to the different deicing performances of coating material and the requirement of road surfaces cling property, apply 0.3～1kg/m at test specimen upper surface altogether
2coating material.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105572038A (en) * | 2016-03-18 | 2016-05-11 | 交通运输部公路科学研究所 | Asphalt and ore material adhesion evaluation method based on wetting theory |
| CN106092872A (en) * | 2016-06-06 | 2016-11-09 | 深圳市公路交通工程试验检测中心 | A kind of detection method of hot melt type gage mark antifouling property |
| CN106990009A (en) * | 2017-04-06 | 2017-07-28 | 长沙理工大学 | Highway pavement anti-freezing ice function layer surface accelerates abrasion test device and evaluation method |
| 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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101539502A (en) * | 2009-04-30 | 2009-09-23 | 清华大学 | Method for measuring liquid-drop contact angle on solid surface and device thereof |
| JP2009222430A (en) * | 2008-03-13 | 2009-10-01 | Fujitsu Ltd | Evaluation method of surface state |
| CN201811902U (en) * | 2010-09-17 | 2011-04-27 | 长安大学 | Stone surface liquid contact angle measurement device |
| CN102507393A (en) * | 2011-11-08 | 2012-06-20 | 国网技术学院 | Coating surface contacting angle measuring device and testing method |
| CN103364340A (en) * | 2013-07-25 | 2013-10-23 | 东南大学 | Indoor examination method of endurance of road ice-and-snow-removing surface coating agent |
-
2014
- 2014-03-24 CN CN201410112166.2A patent/CN103900935A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009222430A (en) * | 2008-03-13 | 2009-10-01 | Fujitsu Ltd | Evaluation method of surface state |
| CN101539502A (en) * | 2009-04-30 | 2009-09-23 | 清华大学 | Method for measuring liquid-drop contact angle on solid surface and device thereof |
| CN201811902U (en) * | 2010-09-17 | 2011-04-27 | 长安大学 | Stone surface liquid contact angle measurement device |
| CN102507393A (en) * | 2011-11-08 | 2012-06-20 | 国网技术学院 | Coating surface contacting angle measuring device and testing method |
| CN103364340A (en) * | 2013-07-25 | 2013-10-23 | 东南大学 | Indoor examination method of endurance of road ice-and-snow-removing surface coating agent |
Non-Patent Citations (1)
| Title |
|---|
| 徐俊军等: "憎水性材料用于路面除冰效果研究", 《道路工程》, no. 24, 31 December 2012 (2012-12-31), pages 129 - 130 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105572038A (en) * | 2016-03-18 | 2016-05-11 | 交通运输部公路科学研究所 | Asphalt and ore material adhesion evaluation method based on wetting theory |
| CN106092872A (en) * | 2016-06-06 | 2016-11-09 | 深圳市公路交通工程试验检测中心 | A kind of detection method of hot melt type gage mark antifouling property |
| CN106990009A (en) * | 2017-04-06 | 2017-07-28 | 长沙理工大学 | Highway pavement anti-freezing ice function layer surface accelerates abrasion test device and evaluation method |
| 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 |
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