Australian Politics Forum

Australian Politics Forum
http://www.ozpolitic.com/forum/YaBB.pl Member Run Boards >> Environment >> How did the Romans know http://www.ozpolitic.com/forum/YaBB.pl?num=1500068271 Message started by Jovial Monk on Jul 15^th, 2017 at 7:37am

Title: How did the Romans know
Post by Jovial Monk on Jul 15^th, 2017 at 7:37am

to make cement that set under sea water? 2000 years later some of these sea walls still exist. Portland cement is being replaced with a cement more like the Romans use to reduce emissions in making cement.

http://ammin.geoscienceworld.org/content/102/7/1435

Title: Re: How did the Romans know
Post by John Smith on Jul 15^th, 2017 at 9:36am

Jovial Monk wrote on Jul 15^th, 2017 at 7:37am:

I saw something about that a few days ago. Rather than deteriorating when submersed in sea water, it hardens, and keeps hardening. Clever boys those Romans.

Title: Re: How did the Romans know
Post by Jovial Monk on Jul 15^th, 2017 at 9:37am

You don’t get to run the whole classical world if you are dummies!

There was also a mention of the undersea cement in Grave’s book “Claudius the God.”

Title: Re: How did the Romans know
Post by Grendel on Jul 15^th, 2017 at 10:47am

oh dear.....