Posted: Jul 15, 2017 3:19 pm
Alan C wrote:Their concretes in general seem to last a bloody long time.
What makes you think that modern concretes are any different from that (except, of course, badly made ones, with a poor composition).
Lifeboat for the rational mind :D
http://www.rationalskepticism.org/
http://www.rationalskepticism.org/viewtopic.php?p=2568754#p2568754
Alan C wrote:Their concretes in general seem to last a bloody long time.