Technical Specification for Ultra-thin Overlay Application Technology in Highway Asphalt Pavement

This document establishes technical guidelines for the application of ultra-thin asphalt surfacing on highway pavements. It outlines the requirements for materials, design, construction processes, and quality acceptance to ensure the durability and performance of road surfaces. The content covers specifications for binder types, aggregate gradation, laying thickness, and compaction methods essential for thin overlay systems. Procedures for surface preparation, mixture production, transportation, and paving operations are detailed to maintain consistency across different projects. Quality control measures include testing frequencies for key parameters such as thickness, permeability, and skid resistance. The guidance aims to standardize execution practices within regional road maintenance operations, promoting efficiency and long-term pavement integrity. Implementation focuses on minimizing environmental impact while enhancing driving safety through improved surface texture. Compliance with these technical provisions supports systematic management of road infrastructure upgrades.