3 ms·
I was literally wondering about this question the other day. It's 2018; we can make CPUs with 12nm features but we can't make a long lasting asphalt? Fascinat
by CoffeeDregs 9y ago
I was literally wondering about this question the other day. It's 2018; we can make CPUs with 12nm features but we can't make a long lasting asphalt?
Fascinating:
Nichols said the AMIR “has great potential” to extend
the life of roads, and “save significant taxpayer
dollars.” In 2016, an MTO analysis found that the
province would save $50 million annually if roads on the
MTOs highways could last even one year longer.
"The MTO is not planning on buying or specifying the use
of AMIR asphalt rollers..."
Might be of interest, too: http://www.dykespaving.com/blog/why-use-asphalt-instead-of-concrete/ http://www.dykespaving.com/blog/why-use-asphalt-instead-of-c...
- JustSomeNobody 9y ago> Asphalt resurfacing simply involves applying new asphalt over the old. Damaged areas are filled with fresh asphalt, and a steamroller goes over the entire surface to yield smooth, even pavement. Florida native, I can tell you this is very temporary. Big chunks will eventually come up and you can see the previous pavement underneath. I'm assuming that between the heat here and the cracks mentioned in the original article that let water seep between the layers, this is just a bad way to fix a road.
- allannienhuis 9y agoUp here in Canada, I've universlly seen them grind up the very top layer of the old asphalt before laying down the next layer. I presume that's to improve adhesion. Can't say I've seen many places where obvious delamination of the layers happens. Are they not taking that step in florida?