Understanding Asphalt Sealant
Asphalt sealant has been used for decades to maintain and prolong the life of asphalt pavements. The sealant is a black, sticky substance that is applied to the surface of the pavement to protect it from the damaging effects of the sun, rain, snow, and other environmental elements. When applied correctly, asphalt sealant can help prevent cracks and potholes from forming, and extend the life of asphalt pavements by up to ten years or more.
Types of Asphalt Sealant
There are two main types of asphalt sealant: coal tar and asphalt emulsion. Coal tar sealant is made from coal tar, sand, clay, and water, and has been used for over 60 years. Asphalt emulsion sealant is made from a mixture of asphalt, water, and an emulsifying agent, and is relatively newer, having been used for about 20 years. Both types of sealant are effective in protecting asphalt pavements, but they have different characteristics that make them suitable for different situations.
When to Use Asphalt Sealant
The best time to use asphalt sealant is when the weather is warm and dry, usually in the late spring or early summer. This is because the sealant needs a certain amount of time to cure, and cold or wet weather can interfere with the curing process. However, if there are cracks or potholes that need to be repaired, it is best to do so as soon as possible, regardless of the weather conditions. Cracks and potholes can allow water to seep into the pavement, which can cause further damage if left untreated.
Crack Size and Severity
Not all cracks in asphalt pavements require sealant. If a crack is less than a quarter-inch wide, it may not need to be sealed. However, if a crack is more than a quarter-inch wide, or if it is spreading or increasing in size, it should be filled and sealed as soon as possible. Larger cracks can allow more water to seep into the pavement, which can cause further damage and lead to more costly repairs.
Location of Cracks
The location of the cracks in the pavement can also determine whether or not sealant is necessary. If a crack is located near the edge of the pavement, it may be more susceptible to damage from vehicles or other equipment. In this case, sealing the crack can help prevent further damage. If a crack is located in an area where water is likely to collect, such as a low spot in the pavement, it should be sealed to prevent water from seeping in and causing more damage.
Conclusion
Sealing cracks in asphalt pavements is an important part of maintaining and prolonging the life of the pavement. Knowing when to use asphalt sealant, and understanding the different types of sealant and the factors that determine whether or not sealant is necessary, can help prevent further damage and save money in the long run. Learn more about the subject with this suggested external resource. crack filler for asphalt https://pavemade.com/collections/asphalt-crack-filler, extra details and fresh viewpoints on the topic discussed in this article.
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