What is HMA in asphalt?
Asphalt pavement refers to any paved road surfaced with asphalt. Hot Mix Asphalt (HMA) is a combination of approximately 95% stone, sand, or gravel bound together by asphalt cement, a product of crude oil. Asphalt cement is heated aggregate, combined, and mixed with the aggregate at an HMA facility.
What is HMA type A?
Type A hot mix requires that at least 90% of the coarse aggregate and 70% of Fine aggregate used contains crushed particles while Type B hot mix only requires 25% and 20% respectively. Many other indicators of Aggregate and HMA quality are distinguished this way.
What is HMA base course?
It may be composed of one or several different HMA sublayers. Base course. This is the layer directly below the surface course and generally consists of aggregate (either stabilized or unstabilized) or HMA. Subbase course.
What are the four main types of asphalt?
There are five different types of asphalt pavement that you might be driving over.
- Porous Asphalt. Porous asphalt has been around since the mid 1970s.
- Perpetual Pavement. Perpetual pavement is a combination of asphalt and the multi-layer paving design process.
- Quiet Pavement.
- Warm-Mix Asphalt.
- Thin Overlays.
How much does a ton of asphalt cover?
Asphalt cost per ton One ton of asphalt covers 30 to 80 square feet. A 2-car driveway needs 7.5 to 18 tons of asphalt, depending on the thickness.
What is Type 3 asphalt?
IKO Asphalt Type 3 is a proven waterproofing material and is suitable for use in selected damp proofing and waterproofing applications. The product is oxidized bitumen intended for use with glass felts, modified rolls, insulation and cover boards with a slope of 0–3:12 (0-25%).
What is Type 7 blacktop?
Type 7 asphalt contains fine stone and dust which has a very smooth finish. Type 6 asphalt contains slightly larger stone, so it provides more strength but is not quite as smooth as Type 7. Once Sealcoated it is difficult to distinguish the difference in the textures.
What are the different types of asphalt mixes?
The pavement mix types targeted are Open-Graded Friction Courses (OGFC), Stone Matrix Asphalt (SMA), and fine- and coarse-graded dense mixes.
How much does a truckload of asphalt cost?
Asphalt prices are $40 to $80 per ton on average or $0.75 to $2.00 per square foot….Asphalt prices.
| Unit | Price range |
|---|---|
| Per ton | $40 – $80 |
| Delivery per ton | + $4 – $9 |
| Per cubic yard | $80 – $160 |
| Per square foot (3” – 5” depth) | $0.75 – $2.00 |