Like any other surfaces that are continuously exposed to extreme and constantly changing weather conditions, even the most durable asphalt pavements eventually wear out. Even for the ones that are constructed for heavy-use, having to accommodate heavy traffic eventually damages the pavement. This is why when doing parking lot repair, your contractor implements asphalt paving processes to protect heavy-use pavement.
Another tip for protecting heavy-use pavement for asphalt repair is to aim for optimized pavement thickness. Pavement thickness refers to the final, compacted thickness and not the loose thickness of the pavement prior to the compaction. Thickness is crucial for heavy-use pavements. Without adequate thickness, heavy-use pavement may not be able to survive heavy loads of traffic for a long time. When the entire pavement is not as thick, there should be traffic control devices to redirect large and heavy vehicles to sections of the pavement that are thicker. Otherwise, it is suggested that heavy-use pavement should have at least 3 inches thickness of aggregate and could increase by 10% during asphalt repair. Even a just 25mm increase in thickness could double the life expectancy of the heavy-use pavement. However, your contractor needs to be mindful of vertical clearance when designing for thickness to protect heavy-use pavement.
Adequate Pavement Support
Another asphalt paving tip to protect heavy-use pavement is to carefully plan, design, and construction of the pavement. In this process, the contractor follows proper guidelines for drainage, subgrade preparation, and thickness design. If these three components are not done properly, there will be no adequate pavement support that would protect heavy-use pavement. Thus, during asphalt repair, your contractor needs to ensure adequate pavement support.
Additives and Sealants
Another effective asphalt saving tip needed when protecting heavy-use pavement during asphalt repair is using sealants and additives. Sealants make the pavement darker and more compact—a feature that is very much needed for heavy-use pavement. Sealants also strengthen the bond between the aggregates and additional layers or coats. However, sealants require a perfect weather to become effective. One or two additives are used by
contractors to assist proper functions of sealants. Additives hasten the curing period that sealants need even in unfavorable working conditions such as the lack of adequate heat or too cold temperature. Additives and sealants used during asphalt repair provide increased durability for heavy-use pavements.
Without regular maintenance and conscious maintenance efforts, heavy-use pavement oxidizes faster, weakens and eventually cracks. Follow these professionally-proven tips to protect heavy-use pavements, and consider parking lot repair as a routine operation cost for your business.