Precision Contractors - Pipeline, Demolition, Utility, Excavation, Earth Moving, Mass Grading
2114 W 850 N, Cedar City, UT 84721435-586-4812
#The Importance of Asphalt Preparation
Proper **asphalt preparation** is a critical first step before paving or resurfacing an asphalt driveway, parking lot or road. The quality of the underlying base and preparation work will determine how well the finished asphalt surface holds up over time. This is why every asphalt paving contractor worth hiring devotes ample time and effort to asphalt prep work long before the first batch of fresh asphalt is laid down.
##Assessing the Existing Asphalt Surface
The existing asphalt must be thoroughly inspected to determine if any areas need repairs, have become severely oxidized and brittle, or have subsided or developed cracks due to problems with the underlying base. Any necessary repairs should be made before applying a new **asphalt surface**. The surface should also be power washed and swept clean to remove built-up grime, oils and debris that can act as bond breakers.
##Repairing Cracks and Depressions
Cracks in the **asphalt** surface must be thoroughly cleaned out and filled with a rubberized crack sealant to prevent water intrusion and further cracking. Any holes, ruts or depressions should be filled in and compacted to level the surface. Failure to properly repair cracks and depressions can lead to premature failure of the new asphalt surface.
##Milling the Asphalt
In many cases, the existing asphalt may be milled to remove the top 1 to 2 inches of material. Milling provides a smooth, clean surface that allows better bonding of the new asphalt overlay. It also removes worn, oxidized asphalt, reduces the need for tack coat and results in a more uniform surface. Adjusting manholes, gas valves and drainage grates to match the new profile is part of the milling process.
##Applying Tack Coat
A tack coat is an application of emulsified asphalt that acts as a bonding adhesive between the existing surface and new asphalt overlay. Applying a uniform tack coat is critical for achieving a strong bond and preventing slippage cracks and other failures. The existing surface must be completely clean and dry for proper tack coat adhesion.
##Checking and Adjusting the Base
The **asphalt** base consists of different layers of compacted stone underneath the asphalt. Any weaknesses or shifts in the base layers will reflect up through the asphalt. The base materials should be inspected and compacted or stabilized as needed prior to paving. Badly damaged or insufficient base layers may need to be rebuilt to adequately support the new asphalt surface.
##Key Takeaways
Proper asphalt prep involves evaluating the existing surface, making all necessary repairs, cleaning and applying tack coat, adjusting or rebuilding the base as needed, and potentially milling the old surface. Although often invisible in the finished product, good asphalt preparation provides the firm foundation essential for durable, long-lasting asphalt surfaces. **Asphalt prep work** may account for up to 30% or more of the total project cost, but it's a wise investment that adds years of service life to any new asphalt installation.
#Pipeline
#Demolition
#Utility-Construction
#Excavation
#Earth Moving
#Mass Grading
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