Introduction: When embarking on a new construction project, whether it’s a residential home, commercial property, or even a road network, one crucial aspect to consider is the choice of materials. Among the many options available, tarmac remains popular due to its durability, cost-effectiveness, and versatility. However, not all tarmac mixes are created equal, and selecting the right one for your new build project is essential. This blog post will delve into the various types of tarmac mixes and their suitability for different applications.
Dense Bitumen Macadam (DBM)
Dense Bitumen Macadam, or DBM, is a popular tarmac mix for new build projects. It consists of a dense mixture of crushed stone, sand, and bitumen, providing excellent durability and wear and tear resistance. DBM is typically used for the base or sub-base layers in road construction and is ideal for areas that experience heavy traffic loads.
Benefits of DBM:
- High load-bearing capacity.
- Excellent resistance to deformation.
- Durability in harsh weather conditions.
- Suitable for heavy-duty areas like highways and industrial zones.
Stone Mastic Asphalt (SMA)
Stone Mastic Asphalt, or SMA, is another tarmac mix that offers outstanding performance and durability. It is characterised by a high stone content and a polymer-modified bitumen binder, giving it a textured, skid-resistant surface. SMA is often chosen for new build projects requiring a smooth, noise-reducing road surface.
Benefits of SMA:
- Superior resistance to rutting and cracking.
- Reduced road noise.
- Enhanced skid resistance.
- Suitable for residential streets and areas with moderate traffic.
Porous asphalt is an eco-friendly tarmac mix that addresses water runoff and drainage issues. It consists of open-graded aggregates and a porous bituminous binder that allows water to pass through, reducing surface water runoff and the risk of flooding. Porous asphalt is an excellent choice for sustainable new build projects.
Benefits of Porous Asphalt:
- Effective stormwater management.
- Reduced risk of flooding.
- Improved water quality through natural filtration.
- Environmentally friendly and sustainable.
Hot Rolled Asphalt (HRA)
Hot Rolled Asphalt, or HRA, is a versatile tarmac mix suitable for various applications. It comprises a mixture of aggregates and bitumen, providing a smooth and durable surface. HRA is commonly used in new projects for areas with moderate to heavy traffic loads.
Benefits of HRA:
- Smooth and even surface.
- Good resistance to deformation.
- Suitable for roadways, car parks, and residential areas.
- Versatile and cost-effective.
Thin Surface Course Systems (TSCS)
Thin Surface Course Systems, or TSCS, are designed for surface rejuvenation and preservation in new build projects. They consist of thin layers of bituminous materials applied over existing surfaces to enhance durability and aesthetics. TSCS is a cost-effective solution for maintaining roads and pavements.
Benefits of TSCS:
- Cost-effective surface preservation.
- Improved aesthetics.
- Extends the lifespan of existing surfaces.
- Minimises disruptions during construction.
Conclusion: Selecting the right tarmac mix for your new build project is crucial to ensure longevity, performance, and cost-effectiveness. Each type of tarmac mix has advantages and applications, so evaluating your project’s specific requirements and consulting with experienced driveway contractors is essential. At Norwich Driveway Contractors, we have a wealth of experience in tarmac installation and can help you make the best choice for your new build project. Whether it’s DBM for heavy-duty areas or Porous Asphalt for sustainable solutions, we have the expertise to deliver quality results that stand the test of time. Contact us today to discuss your tarmac needs and get started on your new build project with confidence.