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Evaluation method for ice and snow removing effects of coating type anti-freezing road surface

An evaluation method and technology of ice and snow, applied in the direction of surface/boundary effects, measuring devices, instruments, etc., can solve the problems of time-consuming, limited, labor-consuming, etc., and achieve the effect of good durability and simple operation

Inactive Publication Date: 2014-07-02
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a method for evaluating the effect of deicing and snow-removing coating-type antifreeze pavement to solve the current method of paving experimental roads, which is time-consuming, labor-intensive and expensive. Technical issues such as limited conditions such as weather and raw materials

Method used

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  • Evaluation method for ice and snow removing effects of coating type anti-freezing road surface
  • Evaluation method for ice and snow removing effects of coating type anti-freezing road surface

Examples

Experimental program
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Effect test

specific Embodiment 1

[0017] A method for evaluating the deicing effect of a coating type antifreeze pavement, comprising the following steps:

[0018] Step (1): Test piece preparation

[0019] First, prepare the specimen 1 of the asphalt mastic macadam mixture (SMA-13), the specimen size is 300mm*50mm*50mm (length*width*height); and then coat a certain amount of deicing snow on its upper surface The surface coating material is applied in 3 times, with an interval of 30 minutes between each time, and a total of 0.75kg / m2 is applied on the surface of the test piece. 2 Surface coating materials for snow and ice removal;

[0020] Step (2): Accelerated loading wear test

[0021] The upper surface of the test piece coated with the snow and ice removal surface coating material obtained in step (1) is not worn on the accelerated loading abrasion instrument (asphalt mixture rutting instrument), so as to simulate the road just coated with the snow and ice removal surface coating material Road conditions;...

specific Embodiment 2

[0024] A method for evaluating the deicing effect of a coating type antifreeze pavement, comprising the following steps:

[0025] Step (1): Test piece preparation

[0026] First, prepare the specimen 1 of the asphalt mastic macadam mixture (SMA-13), the specimen size is 300mm*50mm*50mm (length*width*height); and then coat a certain amount of deicing snow on its upper surface The surface coating material is applied in 3 times, with an interval of 30 minutes between each time, and a total of 0.75kg / m2 is applied on the surface of the test piece. 2 Surface coating materials for snow and ice removal;

[0027] Step (2): Accelerated loading wear test

[0028] The upper surface of the test piece coated with the deicing surface coating material obtained in step (1) is subjected to 2520 abrasions on the accelerated loading abrasion instrument (asphalt mixture rutting instrument) to simulate the wear and tear of the driving wheel on the road. Condition;

[0029] Step (3): Contact an...

specific Embodiment 3

[0031] A method for evaluating the deicing effect of a coating type antifreeze pavement, comprising the following steps:

[0032] Step (1): Test piece preparation

[0033] First, prepare the specimen 1 of the asphalt mastic macadam mixture (SMA-13), the specimen size is 300mm*50mm*50mm (length*width*height); and then coat a certain amount of deicing snow on its upper surface The surface coating material is applied in 3 times, with an interval of 30 minutes between each time, and a total of 0.75kg / m2 is applied on the surface of the test piece. 2 Surface coating materials for snow and ice removal;

[0034] Step (2): Accelerated loading wear test

[0035] The upper surface of the test piece coated with the deicing surface coating material obtained in step (1) is subjected to 5040 wears on the accelerated loading wear tester (asphalt mixture rutting tester), so as to simulate the wear and tear of the driving wheel of the road on the road. Condition;

[0036] Step (3): Contact...

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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 [0001] The invention relates to a method for evaluating the ice and snow removal effect of a coating type antifreeze road surface, which belongs to the traffic engineering technology. Background technique [0002] The skid resistance of asphalt pavement is one of the key factors to ensure the safe driving of vehicles. However, in recent years, the probability of extreme weather in the world has greatly increased, and snow and ice on roads in winter in my country are more common. Data show that the adhesion coefficients of dry, snow-covered, and icy asphalt pavements are about 0.6, 0.2, and 0.15, respectively. Obviously, ice and snow roads will seriously affect the driving safety of vehicles, and the traffic accident rate is relatively high. [0003] To deal with the problem of snow and ice on the road, for many years, the road traffic departments of various countries have done a lot of research work, and explored many methods for clearing the snow and ice o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N13/00
Inventor 朱吉鹏马辉杨若冲钱吮智李凯
Owner SOUTHEAST UNIV
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