Asphalt Knowledgebase | Understanding how sealcoating works… and how it can save you money.
To understand how sealcoating 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. Prior to the advent of asphalt as a paving material, roads were constructed by spreading graded aggregates over a roadbed. These roads worked well as long as the stones remained in place and stayed dry. Naturally, these roads needed constant repair. Stone would shift under the traffic and the road’s load-carrying capacity was severely damaged when it