1. General Requirements • Objective: To repair and patch asphalt roadways, ensuring proper compaction of the subgrade to enhance durability and longevity. • Standards: All work shall comply with local, state, and federal regulations, including the latest standards for asphalt paving and subgrade compaction. • Timeframe: All work shall be complete by May 15, 2025; 2. Site Preparation • Clearing and Grubbing: Remove any debris, vegetation, or obstructions from the work area. • Marking: Locations will be marked to be patched. 3. Subgrade Preparation • Excavation: Excavate the damaged asphalt and subgrade, up to 4” and patch with asphalt • Compaction: Compact the subgrade using appropriate equipment (e.g., vibratory rollers, pneumatic rollers) to achieve the required density. 4. Asphalt Patching • Material: Use hot mix asphalt (HMA) that meets the specified mix design for the project. • Application: Apply a tack coat to the prepared subgrade before placing the asphalt. • Patching: Place and compact the asphalt in layers, ensuring each layer is properly compacted before adding the next. • Finishing: Smooth and level the patched area to match the surrounding pavement...
