Forward-thinking road maintenance should only serve one purpose: to avert greater, unforeseeable effects, such as increasing expenses and dangers, which result in decreased road safety.
To that purpose, several towns and municipalities are progressively employing innovative and ecologically friendly road repair methods, including microsurfacing, which are less expensive. The cold polymer bitumen emulsions, aggregate, cement, water, and dope microsurfacing mix is created directly on the paving machine and applied to the road surface.
The cold application technique consumes relatively little electricity, resulting in much lower CO2 emissions. microsurfacing is applied on-site using specifically built, electronically controlled laying devices. The aggregate size employed in the mixture, as well as the potential requirement for a second layer, are determined by the state of the existing pavement.
When re-profiling is recommended, a second layer is frequently necessary. A micro-installed surfacing’s thickness is typically 1cm. This removes the need for further work such as grinding off the old surface layer and elevating manholes. As a result, microsurfacing not only conserves resources but also reduces disposal costs.
Furthermore, the use of microsurfacing has only a modest impact on traffic flows and nearby inhabitants because the newly constructed surface may be reopened to traffic in less than 3 hours of application. Because of these factors, microsurfacing is frequently regarded as the most efficient and cost-effective form of road repair.
Standard micro surfacing procedure
- Visual examination of the road segment to be maintained and repaired to determine that it is appropriate for microsurfacing treatment and that no preliminary work is required.
- Cleaning the road surface properly with a road sweeper and/or a high-pressure water cleaner.
- All street furniture, such as manhole covers and gullies, must be marked and taped.
- Installation of the first microsurfacing layer: A maximum aggregate size of around 8mm is used to re-profile the road surface based on the type of road.
- If the current road surface shows evidence of a shortage of bitumen content, an extra tack coating of bitumen emulsion is strongly suggested as a bonding agent.
- Spraying and applying the initial coat of microsurfacing in one pass is possible with a machine equipped with an integrated spray bar.
- The second microsurfacing layer can be applied 45 minutes after the re-profiling layer has been applied.
- It is critical to apply this homogenous microsurfacing mix correctly. Good quality labors can be used to provide a superior surface finish
Microsurfacing technology for road rehabilitation is frequently employed on a project-by-project basis. When selecting whether or not to use microsurfacing, location, weather, traffic loads, and pavement conditions are all taken into account. Roadways selected for microsurfacing treatment often have mild to moderate distress, no rutting, and generally narrow fracture widths, and a microsurfacing treatment would help extend the pavement life until resurfacing is necessary.
microsurfacing asphalt is appropriate for road surface rehabilitation under all load classes of running traffic. Practical experience has demonstrated that microsurfacing may endure between eight and fourteen years, demonstrating the outstanding performance and effectiveness of this modern road maintenance technique..