A bitumen or asphalt driveway is a durable and cost-effective surface commonly used in Australian homes and rural areas. It consists of bitumen, a sticky petroleum product, mixed with aggregate like sand, gravel or crushed stone. This mixture is heated, spread on a prepared base, then compacted to form a smooth, solid surface suitable for vehicles.
Benefits of bitumen/asphalt driveways
- Durable with a lifespan of 15 to 20 years when maintained properly
- Generally more affordable than concrete or paving options
- Requires less maintenance compared to some other driveway materials
- Provides a smooth surface that reduces wear on vehicle tyres
Considerations
- Bitumen can soften and become susceptible to tyre marks in extreme heat
- The surface may fade over time due to sun exposure
- Cracking can occur without correct installation or ongoing maintenance
Installation process
- Excavate the site to the required depth and ensure good drainage
- Lay and compact a base layer of crushed rock or gravel
- Spread the hot bitumen and aggregate mixture evenly over the base
- Compact the surface with a roller to achieve a smooth finish
Maintenance tips
- Apply sealant every two to three years to protect the surface
- Repair cracks promptly to stop water damage
- Keep the driveway clean of debris and stains to maintain its look
