502 - HMA Crack Treatment
Field blended liquid mixture for overband (Alternate 1) is no longer allowed. All overband material must be from the Qualified Products List (Alternative 2).
a. Stand Alone Overband Crack Fill
b. Micro-Surfacing Preparation – Industry recommends a delay period of 3 days between overband pretreatment and placement of micro-surfacing.
c. Chip Seal Preparation– Industry recommends a delay period of 7-14 days between overband pretreatment and placement of chip seal.
d. Paver Placed Surface Seal Preparation – It is recommended to allow 14 days between overband pretreatment and paver placed surface seal.
e. HMA Ultra-Thin Overlay Preparation– It is recommended to allow 14 days between overband pretreatment and ultra-thin overlay.
Overband Crack Fill and HMA Crack Treatment are now paid for by the lane mile (Lnmi). All shoulder work is considered incidental. A lane mile is defined in the Lane Mile Inventory document which can be found online at http://www.michigan.gov/mdot/0,4616,7-151-9621_15757---,00.html