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Michigan’s Oldest Concrete Road Is in Calumet (1906)
- rmason 4y agoA friend of mine who lives in the area was shocked to learn this road has never been repaved! He asked locals and found out that it was paved from a mixture of concrete and Granitoid. What's Granitoid? https://en.wikipedia.org/wiki/Granitoid#:~:text=A%20granitoid%20is%20a%20generic,monzonites%20to%20quartz%2Drich%20quartzolites https://en.wikipedia.org/wiki/Granitoid#:~:text=A%20granitoi.... Road builders apparently moved to concrete solely because it was less expensive. However the concrete roads are falling apart after five years and are targeted for replacement after ten. Would it be more effective to move back to Granitoid and concrete roads?
- blacksqr 4y agoA fascinating engineering insight worthy of follow-up. A slide presentation on the technology: https://slideplayer.com/slide/5197762/ https://slideplayer.com/slide/5197762/ Accompanying paper: https://trid.trb.org/view/1263933 https://trid.trb.org/view/1263933