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EDGE MILLING
Prior to resurfacing with new asphalt, edge milling the entire perimeter of a parking lot is required to prevent ponding water and trip hazards. The width and depth of the milling cut is dependent on the existing drainage pattern of the parking lot. As a general rule, the milling cut should be at least 4 feet wide and the depth should be at least the depth of the new asphalt layer. The milling process will create a large volume of dust and debris as the machine literally grinds off a layer of old asphalt. While some machines have an efficient conveyor system to transport the millings into a waiting dump truck, there is still a chance of flying debris and dust. These millings should be completely cleaned from the surface prior to placement of any asphalt.
The Process:
- Survey the existing drainage conditions of the parking lot or roadway. Determine width and depth of edge milling required to provide positive drainage.
- Edge mill against all fixed elevation structures, such as concrete gutters, pads, and utility manholes.
- Convey millings directly into waiting dump truck and remove from site.
- Use small milling head mounted on a skid steer loader in tight radius points where larger machine can not access.
- Sweep entire area clean of all milling debris.
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