Terry Ruth wrote: The biggest impact on changing the cost or supply-demand is showing a code prescriptive path for folks to use, or have an Analytical path (approved tested properties per ASTM, ISO) for a licensed PE. Must been nice to live back in the Roman days without all the legal red tape and law suits, liabilities.
Dale Hodgins wrote:Roman concrete was mentioned. The most famous artifact is the Pantheon. They didn't dump massive amounts into the ground.
Ann Torrence wrote:Why is it in my old SLC neighborhood, there were stretches of concrete sidewalk that were literally 100 years old and the newer stretches that were replacements for whatever reason degraded in less than 10 years?
Space seems cool in the movies, but once you get out there, it is super boring. Now for a fascinating tiny ad:
Devious Experiments for a Truly Passive Greenhouse!https://www.kickstarter.com/projects/paulwheaton/greenhouse-1