I see this glass-like chip-seal in the Fitchburg area. While it may prolong the life of the asphalt, it chips off the road in big patches after some use and makes the road look like it was repaved with inferior material. Not so much fun to ride over rough road with chipped off patches either.
Mary On 8/9/11 11:50 AM, "Michael Lemberger" <[email protected]> wrote: > Hi All, > > The city's page on the subject is here: > > <http://www.cityofmadison.com/streets/maintenance/repair.cfm> > > They state that the aggregate gets swept after the tar material has cured, and > it would appear that this has happened on many of the streets I ride in the > Westmoreland and Tokay neighborhoods. > > I think they are using boiler slag as an aggregate: > > <http://www.fhwa.dot.gov/pavement/recycling/recwslag.cfm> > > "When molten boiler slag comes into contact with water, it immediately > fragments becoming coarse, angular, glassy particles. WBBS is a porous, glassy > granular particle that is primarily regarded as a single-sized coarse to > medium sand." > > So yes, that sounds like it would be sharper than pea gravel. I had my first > flat of the year after riding on newly-sealed streets on my commute. I suspect > that the problem will go away when most of the loose material is gone, but my > solution was to switch to tires with a puncture-resistant kevlar or aramid > belt. Works like a charm. > > Though we may not like this stuff, it seems like it significantly increases > the life span of asphalt-paved roads at a fraction of what it would cost (in > money or material) to repave them. Overall a positive, I'd say. > > Michael > > >> Can anyone comment about this [below email from Ald. Lisa Subeck]? Anyone had >> a similar experience? Heard other complaints? Know if a new material is being >> used? >> >> I had an email about a problem in Fitchburg forwarded to me this AM, so Steve >> Arnold may be familiar with this, but is Madison also using something sharp >> and pointy as aggregate? > > > _______________________________________________ > Bikies mailing list > [email protected] > http://lists.danenet.org/listinfo.cgi/bikies-danenet.org
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