Aggregates are materials that are used in asphalt mix to help bind the asphalt together. There are a variety of different aggregates that can be used, including sand, gravel, and crushed stone. The type of aggregate that is used will depend on the specific application and the desired results.
But what is the best aggregate to mix with asphalt? If you’re interested to know more, we suggest you continue reading as we’re going to tackle this topic in today’s article.
Why Aggregate Is Mixed With Asphalt
Aggregate is necessary for an asphalt mix because it supports the load capacity of the pavement. In short, it enables the pavement to carry as much weight as possible at any given point. Without it, the mixture will be a slurry-like substance that cannot bear the load that is applied on the surface.
Factors In Determining The Right Aggregate To Use
When it comes to choosing the right aggregate for your asphalt mix, there are a few factors you’ll need to consider:
- The climate where you live – If you live in a cold climate, you’ll need a harder aggregate than if you live in a warm climate.
- The traffic volume on your roads – If you have a lot of traffic, you’ll need a stronger aggregate than if you have light traffic.
- The type of vehicles that use your roads – If you have large trucks or buses, you’ll need a tougher aggregate than if you only have smaller cars.
- Your personal preference – Some people prefer a rougher aggregate for their asphalt mix, while others prefer a smoother one.
When choosing an aggregate, it is also important to consider the gradation of the material. The gradation refers to the size of the particles in the aggregate. A well-graded aggregate will have a range of particle sizes, from large to small. And this type will provide good drainage and will resist compaction.
Aside from that, it is also essential to consider the cleanliness of the aggregate. That’s because aggregates that are clean and free of dirt and debris will provide a better binding material and will produce a smoother asphalt mix.
But Which Is Usually The ‘Best’ Choice
In general, the best aggregate to mix with asphalt is a coarse aggregate that has been crushed and screened. This type of aggregate will provide a strong binding material and will resist compaction. The coarse aggregate will also provide a good surface for the asphalt to adhere to.
However, if you are looking for a smoother surface, you may want to consider using a finer aggregate. This type of aggregate will provide a smoother surface but may not be as strong or durable as the coarse aggregate.
Can Rubber Particles From Old Tires Be Used As Aggregate For Asphalt Mix
Yes, rubber particles can be used as aggregate for asphalt mix. And there are a number of reasons why rubber particles make an excellent aggregate for asphalt mix. Firstly, rubber is environmentally friendly and sustainable. It can be recycled and does not release any harmful pollutants into the air or water. Additionally, rubber is very durable and resilient, meaning it will not crack or crumble over time like some other options might. This makes it ideal for high-traffic areas that need to withstand a lot of wear and tear. Finally, rubber provides better traction than many other materials, making it safer for both drivers and pedestrians.
Furthermore, the benefits of using rubber as an aggregate for asphalt mix include increased durability and decreased noise levels. Which is why it can also be a viable option if your budget permits it.
Ultimately, the best aggregate to mix with asphalt is the one that meets your needs and preferences. To get started, consult with a certified professional paving contractor like Buckhead Paving Atlanta to see what they recommend.