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johnny331 11-15-2007 09:20 PM

vibratory plate for asphalt grindings?
I just had a truckload of asphalt grindings put down on my drive.

It's a little loose and I wanted to know what is the best way to pack it down a bit to make for better driveway conditioins?

What about a vibratory plate? Roller? Or just good 'ol time and rain?

Stone Guy 11-24-2007 11:08 AM

I have had blacktop millings dumped on a driveway before and found that a plate compactor tightened things up nicely. Just don't expect it to re-harden like brand new asphalt or anything, but it will pack really tight. It'll just re-loosen somewhat over time, especially when people driving/parking on top of it go and make sharp turns. So, yeah. Tamp it.

panhandlion 11-25-2007 07:19 PM

If you are going to compact it with a plate tamp be sure you add lots of water first... 15% to 20% moisture content will let you pack it quite tightly I would spread it and turn a lawn sprinkler on it for a few hours (even while I was tamping it if it isnt too cold there)... the surface may loosen up but eventually the whole thing will settle in nicely for you... a heavy coat of emulsified asphalt could stop the loosening of the surface but you probably have to hire a parking lot sealing contractor to do it for you... there is no practical way for a homeowner to spray it on thick enough:thumbsup:

so-elitecrete 11-28-2007 05:53 PM

when that asphalt was pav'd &,,,
compacted, there was heat & liquid asphalt to bind the mix together,,, now you've just got a bunch of crumbles,,, millings're fine in the right spot but you'll need, as suggested, to spread an asphalt emulsion over the mat & have it compacted,,, otherwise, the tires'll just push crumbles everywhere.

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