Another Recycling Application - Sidewalk Cement - Reader comments at The New York Sun

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Reader comment on:
Developers Mull Uses for Rare Rock Excavated for Tunnels

Submitted by Duke, May 8, 2007 09:36

When I first moved to NY in the nineties I noticed a lot of shimmery sidewalks on my walks around the City. They seem to have disappeared lately. Does anyone know if the schist mentioned in the article is a common ingredient in sidewalk cement? Perhaps some of the big water tunnel digs provided the powdered form?

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Comment	By	Date
When I first moved to NY in the nineties I noticed a lot of shimmery sidewalks on my walks around...	Duke	May 8, 2007 09:36
One use of Manhattan Schist not mentioned in the Sun story was that it was the major stone for the... [MORE]	Nathan Glazer	Apr 27, 2007 17:57
I was really impressed by the possibilities of recycling the Manhattan schist rock from the soon to be excavated 2nd... [MORE]	Robert Gilmore	Apr 26, 2007 17:39
That's the sort of thinking that should go into major projects like this. Even if the rock is not of... [MORE]	Gary Reilly	Apr 26, 2007 11:39
Build a land bridge to Governor's Island [MORE]	Jaded New Yorker	May 8, 2007 19:17

Reader comment on:Developers Mull Uses for Rare Rock Excavated for Tunnels

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Reader comment on:
Developers Mull Uses for Rare Rock Excavated for Tunnels