Free Republic
Browse · Search
General/Chat
Topics · Post Article

To: BobL
We’re still trying to figure out the recipe for their [Roman] concrete!

We know how to make Roman concrete now. Long ago someone had the presence of mind to chip the recipe onto a stone and about 20 years or so someone found it. If I remember correctly the two magic ingredients are salt water and volcanic Ashe. It does have a different texture- sort of like wet clay.

19 posted on 09/02/2023 4:41:38 PM PDT by fini
[ Post Reply | Private Reply | To 15 | View Replies ]


To: fini

I forgot when the documentary came out but I recall the engineers cured their blocks in the sea.


21 posted on 09/02/2023 5:28:44 PM PDT by Organic Panic (Democrats. Memories as short as Joe Biden's eyes)
[ Post Reply | Private Reply | To 19 | View Replies ]

Free Republic
Browse · Search
General/Chat
Topics · Post Article


FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson