Abstract
Snow and ice on asphalt pavement surface can significantly affect traffic safety and damage pavements. To reduce its effect, a kind of anti-icing emulsified asphalt binder (AEAB) is developed by adding a certain amount of anti-icing fillers to the modified emulsified asphalt binder. The anti-icing performance and pavement performance of AEAB coating are evaluated. The results show that: the basic properties of AEAB meet the requirement of road maintenance, and the AEAB has excellent anti-icing performance and bonding property. It can facilitate the ice-melting on pavement and reduce the adhesion force between pavements and ice, and the adhesion force can be reduced by about 50%. The AEAB coating can keep an excellent bonding state with the original pavement, which can prolong the service life of the coating. These findings demonstrated the potential of using AEAB coating on asphalt pavement to provide better pavement performance and contribute to traffic safety during snowfall.
Highlights
Snow and ice on pavement surface can dramatically reduce the road skid resistance and cause the emergency braking distance on icy roads 6∼7 times that of normal roads (Dan et al, 2017)
The prepared emulsified asphalt binder and 20% antiicing fillers were added into the mixer and stirred until particles of anti-icing filler were fully coated with modified emulsified asphalt binder
Basic Properties Test According to the standard test methods of bitumen and bituminous mixtures for highway engineering in China (China Communications Press, 2011), softening point, penetration, ductility at 5◦C, elastic recovery of evaporated residue test, and Brookfield viscosity test were carried out to evaluate the basic properties of anti-icing emulsified asphalt binder (AEAB) and modified emulsified asphalt binder
Summary
Snow and ice on pavement surface can dramatically reduce the road skid resistance and cause the emergency braking distance on icy roads 6∼7 times that of normal roads (Dan et al, 2017). Regular snow removal or deicing methods included spraying chloride ice-melting agents and mechanical equipment such as snowplows and sweepers These traditional methods demand a lot of professional workers and equipment and may lead to high pollution and cause serious damages to the performances of pavements (Henry, 1991; Yehia and Tuan, 1999). To solve these problems of above passive ice-removal method, the anti-icing methods based on thermal melting technology have been studied and proposed, such as heating wire, infrared heating, microwave heating, solar energy collection technology, and electrically conductive pavements; these technologies are proved to be highly efficient in road deicing The anti-icing performance and pavement performance of AEAB coating were analyzed by laboratory tests, which proved the excellent properties and the feasibility of AEAB as pavement maintenance materials
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
