Edge cracks appear at the very edge of a road or parking lot, next to the curb as a result of unstable drainage and lateral support, strong frost heaves, and insufficient setting time for the aggregate. All of these elements are further facilitated if the base of the asphalt is weak from the get-go. The solution to this problem is to clear out all overgrowth and debris that is located at the edge of the asphalt pavement and fill the cracks with asphalt sealant. Of course, drainage in your parking lot should also be brought up to code and improved.
Crack sealing machine is specially used to sealing the crack and services in the pavement of express ways, highways, municipal streets and airports after new opening and heavy repaired. After notched by crack router and sealing by special sealing glue, ensure the whole usability and working time. As a special manufacture about crack sealing,Shanghai Doan Machinery Company also can provide you prefessional advices about crack sealing, if you have any question about the crack sealing, welcome to contact us.