Overview of Fine Milling in Road Maintenance
Fine milling, led by Josh Hornbeck, is a critical process in road maintenance aimed at removing deteriorated pavement, maintaining elevation, keying into existing pavement structures, and improving skid numbers. This involves texture adjustment, profile enhancement, and removal of rutting to ensure a good bond with existing pavements. Machine specifications, maintenance, and performance measurements are essential elements discussed in the detailed presentation.
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Presentation Transcript
Fine Milling Josh Hornbeck
Reasons For Milling Remove deteriorated pavement Maintain existing elevation at curbs Keying into existing pavement / bridge ends Remove rutting in existing pavement Texture existing pavement to provide good bond Improve profile / IRI Improve skid numbers
Machine Specification Minimum tooth spacing
Machine Specification Minimum drum RPM Maximum machine speed Limit machine speed based on drum RPM
Machine Specification Minimum drum RPM Maximum machine speed Limit machine speed based on drum RPM
Performance Specification Macrotexture Measurement
Special Note For Fine Milling Macrotexture measurement 9.5 or greater Grade averaging minimum 3 sensors minimum 20 spacing Payment by square yards
