MICRO SURFACING BITUMEN EMULSIONS

MICRO SURFACING BITUMEN EMULSIONS PROPERTIES

MICRO SURFACING BITUMEN EMULSION APPLICATION

• Materials:

  • Asphalt Emulsion: The type and grade of the asphalt emulsion should comply with the local or project specifications. Commonly used emulsion types include CSS-1h, CSS-1, CRS-2, or others.

  • Aggregates: Graded aggregates with specified sizes and properties should be used. The aggregate gradation should meet the requirements for micro-surfacing applications.

• Mix Design:

  • Emulsion Content: The mix design should specify the percentage of asphalt emulsion to be used in the micro-surfacing mixture.

  • Aggregate Gradation: The gradation of aggregates in the mix should be well-defined, ensuring proper distribution of particle sizes.

• Application Criteria:

  • Temperature Range: Specifications should outline the recommended application temperature range for both the asphalt emulsion and the mixture itself.

  • Surface Preparation: Guidelines for surface preparation, including cleaning and repairing of the existing pavement, should be provided.

  • Application Rate: The specified application rate of the micro-surfacing mixture per unit area should be outlined in the specifications.

• Performance Requirements:

  • Curing Time: The specifications should include the minimum and maximum curing times required for the micro-surfacing to achieve the desired performance.

  • Skid Resistance: Requirements for skid resistance should be defined to ensure the safety of the road surface.

• Testing and Quality Control:

  • Quality of Materials: Procedures for testing and ensuring the quality of asphalt emulsion, aggregates, and other materials should be specified.

  • Field Quality Control: The specifications should outline field testing procedures to monitor the quality of the micro-surfacing application during construction.

• Equipment Requirements:

  • Mixing Equipment: Specifications for the type and capacity of mixing equipment used for preparing the micro-surfacing mixture.

  • Application Equipment: Requirements for the type and calibration of the equipment used for applying the micro-surfacing to the pavement.