Chip sealing is a road surface treatment that combines a layer of asphalt with one or more layers of small stone. The stones are usually about the size of a dime. Chip sealing is used to improve the appearance and extend the life of a road surface.
So how does chip sealing work? Read more to find out.
Going Through The Step-By-Step Process Of Chip Sealing
Chip sealing, also known as asphalt sealing, blacktop sealing, or pavement sealing, is a process used to protect and improve the surface of roads, parking lots, and other paved surfaces. It involves spraying an asphalt emulsion onto the surface, then covering it with a layer of crushed stone. The sealant helps to protect the surface from weathering and oxidation, and can also improve traction and reduce skidding.
Aside from that, another reason why chip sealing is done is to protect the underlying asphalt from oxidation (or “weathering”). When exposed to oxygen, asphalt molecules break down and form tiny crystals called “asphalt cement”. These tiny crystals create small bumps on the pavement surface, which can lead to cracking, potholes, and an overall rough ride. Chip sealing helps prevent these problems by filling in any cracks or potholes on the surface, and by providing a protective sealant that slows down the oxidation process.
The steps involved in chip sealing are as follows:
1. The surface is cleaned and prepped with a tack coat, which is an asphalt emulsion that helps the sealant adhere to the surface.
2. The sealant is sprayed on using a special sprayer truck.
3. A layer of crushed stone is spread over the sealant.
4. The stones are then rolled into place using a roller truck.
5. The surface is then left to cure for 24-48 hours before it can be used.
Chip sealing is relatively inexpensive. It is also easy to maintain, as the sealed surface only needs to be swept or brushed occasionally to remove debris.
Moreover, chip sealing your driveway can last anywhere from 3 to 7 years. However, it is important to keep an eye on the condition of the chip seal in order to determine whether or not it needs to be resealed. Ultimately, the lifespan of a chip seal depends on a variety of factors, including traffic volume, weather conditions, and the quality of the original installation.
Costing Considerations
The average cost of the chip seal process per square foot can vary depending on a number of factors, including: the size and type of project, the materials used, the location, and the contractor. However, on average, the cost is usually $3 per square foot.
Some things that can affect the final cost of chip sealing include: how many coats of sealant are applied, whether or not a primer is used, how much asphalt is required, and whether or not any excavation needs to be done.
To be specific, there are typically 3 coats are applied. The first and second coats of sealant usually cost around $30 a gallon and the third coat is about $50 a gallon. this is due to the increased labor involved and the fact that the contractor has to go back over an area that has already been sealed.
Aside from that, another factor that affects the final cost of chip sealing is whether or not a primer is used. A primer prepares the surface for sealant, filling in any small potholes or cracks that might be present and helping the sealant to stick better. If a primer isn’t used, then there’s more chance that the sealant will peel away from the surface over time. This can lead to costly repairs down the road.
And whether or not any excavation needs to be done first can also affect the final cost of chip sealing. That’s because if the road has a lot of bumps and potholes, those will need to be fixed before the chip sealant can be applied. Otherwise, the sealant will only last for a short time before it’s worn away by traffic.
Choosing An Experienced Contractor Is Important For Your Chip Sealing Project
The chip seal process should only be done by capable contractors because it is a specialized process that takes experience and training to do correctly. The contractor should have a good understanding of how to mix and apply the sealant properly. They should also be able to handle any problems that may arise during the job. If not done properly, the sealant can crack and peel, leading to further damage to the road surface.
By choosing a contractor with experience, you can be sure that the job will be done correctly and that you will be happy with the results.
