There are two different types of asphalt that are used for driveways. There is a 41A, also known as a driveway mix, and there is a 41b type. There is a big difference in the two types of asphalt. The uses of the different types of asphalt will allow you to decide which one of the types of asphalt is perfect for your asphalt project.
The 41A or driveway mix is composed of rock and asphalt oil. This is the most common asphalt that most asphalt contractors use. The rock is very fine, with the incorporation of sand into the mixture. The asphalt oil combines the sand and rock mixture together. The more oil that is added to the mixture, the more durable the asphalt can be. The one set back to using more oil in the mixture is that there can be tire marks left on the asphalt from vehicles.
The 41b asphalt has a larger sized sand and rock mixture. The oil is lessened down which allows for heavier weight of up to one ton. The same process is done to make the asphalt, but the size of the sand and rock is different with less oil used. The difference in this type of asphalt when it is laid is that the surface will not be as smooth as the 41A asphalt type due to the larger rock and sand used in the mixture.
The usage of the driveway is how the homeowner can decide which type of asphalt to choose from. If your driveway will be holding heavier vehicles, then the 41b asphalt is recommended. The surface won’t be as smooth as the 41A type, but it will be strong and durable. This is great if the homeowner will be parking any heavy equipment, such as a trailer or boat on the asphalt surface.
The 41A asphalt type is a smoother surface. It is durable, but with a finer rock and sand mixture. This is what most homeowners choose for their driveways. Depending on the needs of the homeowner will determine which type of asphalt will best suit their asphalt needs. Needless to say, both types of asphalt come with durability and strength, and will give you exactly what you are looking for.
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