08-12-2024, 11:54 PM
(This post was last modified: 08-12-2024, 11:54 PM by danbrotherston.)
(08-12-2024, 06:03 PM)Bytor Wrote:(08-12-2024, 05:32 PM)dtkvictim Wrote: Some of these pictures are bit old, but the only thing that changed is the paint was added. The block between Francis and Water hasn't had the top coat added for some reason, so it's been pretty rough for a few weeks now.
Is this a new, recent pave after redoing a a street, the first layer of asphalt?
Then it is very common to wait.
You need to let everything underneath settle before putting on the asphalt's top layer as some parts will subside more and others less. Once everything has had a season or two to settle then you apply the top layer which will be thicker where the binding layer has settled more and thinner where it has settled less.
If you put on the top layer right as soon as the binding layer has cooled and hardened (3-4 days) it would just settle right along with the binding layer and your street, driveway, or parking lot would end up uneven. Plus, the dual-layer construction like that also helps it resist frost heave better.
This is the story I’ve heard for years from engineers. All I know for sure at this point is that the Netherlands does not do this. When a road is re-opened it is opened with the final asphalt coat. Maybe it’s a weather thing, or a traffic thing, or maybe the story about settling is just BS, who knows.