Ancient Roman Concrete

[dave1949]

I thought this is interesting, useless factoid perhaps, but interesting.

Roman seawater concrete holds the secret to cutting carbon emissions

 

[/pine]

Something that amazes me are the age old forts along the S.E. coastal regions...made from beach sand and Coquina

 

[newbury]

Good find. I've got some concrete projects coming up.

 

[Baby Grand]

What's old is new! Very interesting article - thanks.