- Better Roads - http://www.betterroads.com - Posted By admin On
June 3, 2011 @ 4:57 pm In In the Magazine,Road Science | No
Comments Diamond Grinding vs. Micromilling By Tom Kuennen,
Contributing Editor Diamond grinding of Portland cement concrete
pavements and micromilling of bituminous asphalt pavements are
superficially similar in concept, but that’s just about the only
thing they have in common. Diamond grinding of aging Portland
cement concrete (PCC) pavements renews the pavement’s skid-
resistance, and provides a smoother-riding pavement. And the
resulting smoother profile reduces dynamic loading on the
pavement, thus extending its service life. On the other hand,
micromilling, or fine-tooth milling – using conventional cold
mills with fine-tooth drums and hardened teeth – can remove
imperfections from an asphalt surface and prepare it for a
super-smooth thin asphalt overlay in a manner superior to
conventional cold milling. In some cases, it can even be used
instead of grooving or grinding pavements. F