To understand how crack sealing works, it is necessary to understand the nature of the asphalt pavement itself. Because of its excellent waterproofing, flexibility, and adhesive properties to bind and hold the aggregates in the pavement, asphalt has been used extensively for paving and road construction. These asphalt roads worked well as long as the stones remained in place and stayed dry. Naturally, these roads needed constant repair.
Because of its waterproofing properties, asphalt protects the aggregates from absorbing water, thus preserving their strength and load-carrying capacities. Today’s asphalt pavement is a mixture of stone aggregate and mineral filler combined with 4.5% to 12% (average of 6%) asphaltic binder (asphalt cement). The strength of an asphalt pavement is directly related to the pavement design from the ground up. This base of aggregate is what really carries the load of the traffic. The same theory applies to off-street parking lots or drive-ways.
Crack sealing can make the good use of the asphalt pavement, and can extend the life of asphalt pavement. If you want to save the cost of the road repair, it is the best choose about crack sealing, and as a professional manufacture for crack sealing machine, we can provide you professional advice for road repair, please feel free to contact us now.
