Indoor examination method of endurance of road ice-and-snow-removing surface coating agent
A surface coating and durability technology, applied in the field of traffic engineering, can solve the problems of limitation, time-consuming and labor-intensive, etc., and achieve the effect of simple operation
Inactive Publication Date: 2013-10-23
SOUTHEAST UNIV
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Problems solved by technology
[0006] Technical problem to be solved: Aiming at the deficiencies of the prior art, the present invention provides a method for indoor inspection of the durability of the road deicing and snow surface coating agent, which solves the time-consuming and labor-intensive problem of the prior art by paving the experimental road and the weather, Technical issues such as limited raw materials and other conditions
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[0017] A method for indoor inspection of the durability of a road deicing and snow surface coating agent, comprising the following steps:
[0018] Step (1) Specimen preparation: prepare SMA-13 rutting slab specimen 1 of asphalt mastic gravel mixture, the size of which is length*width*height equals 300mm*300mm*50mm, and then coat a certain amount on its upper surface The amount of deicing and snow surface coating agent is divided into three coatings on average, with an interval of 15 minutes each time, and a total of 0.75kg / m is coated on the surface of the rut plate test piece. 2 Deicing and snow surface coating agent;
[0019] Step (2) Accelerated loading wear test: The upper surface of the rutting plate specimen coated with the deicing and snow surface coating agent obtained in step (1) was worn on an accelerated loading abrasion tester. Place the rutting plate specimen 1 on the test platform 2, the upper surface of the rutting plate specimen 1 is pressed with a tire 3, a...
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The invention discloses an indoor examination method of endurance of a road ice-and-snow-removing surface coating agent. The method comprises: preparing a track plate test piece, coating the ice-and-snow-removing surface coating agent, performing an acceleration loading wear test to simulate wear state of a real road; then freezing for an ice layer on the upper surface of the track plate test piece; and finally performing a shearing test on the test piece with the icy layer on the upper surface via a universal test machine, and recording the shearing force of the contact surface between the ice layer and the test piece. In the end, the endurance of the ice-and-snow-removing surface coating agent is evaluated through the shearing force. The larger the shearing force is, the larger the bonding force between the test piece and the ice layer is, thereby the endurance of the ice-and-snow-removing surface coating agent is worse; conversely, the smaller the shearing force is, the smaller the bonding force between the test piece and the ice layer is, thereby the endurance of the ice-and-snow-removing surface coating agent is better. The method of the invention is simple in operation, free in extraneous condition restriction, labor-saving and time-saving.
Description
technical field [0001] The invention relates to the technical field of traffic engineering, in particular to a method for testing the durability of a road ice and snow removal surface coating agent. 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 climates around the world has greatly increased. The phenomenon of snow freezing on roads in winter in my country is more common. The temperature alternates between warm and cold. The formation of thin ice leads to a sharp decline in the skid resistance of the road surface. According to data, the adhesion coefficient of dry asphalt pavement is about 0.6, while that of snow-covered pavement is 0.2, and that of icy road is 0.15. Therefore, on ice and snow roads, cars are prone to skidding and deviation, and the braking distance is significantly prolonged, which seriously affects the operational ...
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IPC IPC(8): G01N19/04
Inventor 杨若冲马辉钱吮智
Owner SOUTHEAST UNIV