Products & Application

Products & Application

Micro Surfacing Products:

Micro surfacing is a mixture of several key components that work together to form a durable and skid-resistant surface treatment. The specific formulations may vary based on project requirements, local conditions, and the manufacturer’s product offerings. However, common components include:

1. Emulsion:
   • Polymer-modified asphalt emulsion is a crucial component. The emulsion provides adhesion, binds the aggregate together, and forms the coating on the existing pavement surface.
2. Aggregate:
   • Finely graded, high-quality aggregate is mixed with the emulsion. The aggregate provides texture, skid resistance, and durability to the micro surfacing layer.
3. Filler:
   • Mineral filler, such as Portland cement, hydrated lime, or fly ash, is often included to improve the mixture’s cohesion, enhance workability, and contribute to the final properties of the micro surfacing.
4. Water:
   • Water is added to the mixture to achieve the desired consistency and facilitate the application process. It helps in the proper dispersion and application of the emulsion-aggregate mixture.
5. Additives:
   • Various additives may be incorporated, depending on project specifications and desired performance characteristics. Additives can include latex or polymer modifiers to enhance flexibility and strength.

Micro Surfacing Application Process:

Micro surfacing application involves a specialized process using dedicated equipment. Here are the key steps in the application process:

1. Surface Preparation:
   • The existing pavement surface is thoroughly cleaned to remove debris, dirt, and loose materials. Any cracks or potholes are repaired in advance.
2. Mixing:
   • The micro surfacing mixture is prepared using a specialized machine that combines the emulsion, aggregate, filler, and water in controlled proportions. Additives may be introduced during this stage.
3. Application:
   • The micro surfacing mixture is applied to the pavement surface using a spreader box. The application is typically in a single pass, creating a uniform and thin layer.
4. Spread and Level:
   • The spreader box distributes the mixture evenly across the pavement, and a series of augers and spreader screws help level the material. This ensures a smooth and consistent micro surfacing layer.
5. Curing:
   • Micro surfacing has a quick curing time compared to traditional asphalt treatments. The treated surface is allowed to cure, usually within a short period, before it is opened to traffic.
6. Traffic Control:
   • Adequate traffic control measures are implemented to ensure the safety of both construction workers and the traveling public during the application and curing process.
7. Quality Control:
   • Quality control measures are implemented throughout the process to ensure that the micro surfacing mixture meets specified standards. This may involve testing the mixture during preparation and conducting visual inspections post-application.
8. Striping and Markings:
   • Once the micro surfacing has cured, pavement markings and striping can be applied as needed.

Micro surfacing is an effective and efficient method for preventive maintenance, providing a protective and durable surface layer to extend the life of roadways. Proper application and adherence to quality control standards are essential for the success of micro surfacing projects.