What is Asphalt?
Asphalt, often referred to as bitumen, is a thick, black, sticky substance that is a byproduct of crude oil refinement. It consists of a mixture of aggregates (stones, sand, and gravel) and a binder (asphalt cement). When combined, these materials create a malleable, stable surface that can withstand heavy loads, making it ideal for various paving applications.
Components of Asphalt
1. Aggregates:
- These are the solid particles that make up the bulk of asphalt. They include large stones, small gravel, and sand. The size and type of aggregate impact the strength and drainage properties of the asphalt.
2. Asphalt Cement:
- This is the black tar-like substance that binds the aggregates together. It is liquid at high temperatures, allowing it to be mixed with aggregates and then solidifies as it cools down.
3. Additives:
- Sometimes, additional materials are included in the asphalt mix to enhance performance, such as polymers for increased elasticity, or recycled materials for sustainability.
Basics of Asphalt Paving
Paving with asphalt involves several essential steps that ensure a durable and smooth surface. Check out The Process Of Paving and Asphalt Maintenance Throughout The Year.
