To: 2ndDivisionVet
I thought we had figured out the romans formula for concrete.
2 posted on
05/28/2016 11:33:34 PM PDT by
Secret Agent Man
(Gone Galt; Not averse to Going Bronson.)
To: Secret Agent Man
Yes, the Romans used the volcanic ash they were talking about.
6 posted on
05/28/2016 11:46:40 PM PDT by
Husker24
To: Secret Agent Man
We did, but the stuff is impossible to break down without explosives so it’s not used much. We like build and then rebuilding to much.
29 posted on
05/29/2016 1:30:47 AM PDT by
RedWulf
(End Free trade.)
To: Secret Agent Man
They used a volcanic ash that you cannot get just anywhere. The goal is to find a common binding agent that can be used all the time.
30 posted on
05/29/2016 1:33:24 AM PDT by
Jonty30
(What Islam and secularism have in common is that they are both death cults)
To: Secret Agent Man
I thought we had figured out the romans formula for concrete. Same here - wonder if the show was rigged to make it seem better than advertised.
44 posted on
05/29/2016 3:56:48 AM PDT by
trebb
(Where in the the hell has my country gone?)
To: Secret Agent Man
LOL; we did figure it out:
the basic mixture of mortar can be made using the volume proportions of 1 water : 2 cement : 3 sand. Most of the student activities can be conducted using this basic mixture. Another "old rule of thumb" for mixing concrete is 1 cement : 2 sand : 3 gravel by volume. [Google]
To: Secret Agent Man
As Buyukozturk describes it, the mesoscale represents the connection between microscale structures and macroscale properties. For instance, how does cements microscopic arrangement affect the overall strength and durability of a tall building or a long bridge? Microscale reinforcing rods? Great... and when the structure needs to be torn down and replaced>.. what then?
55 posted on
05/29/2016 8:55:03 AM PDT by
GOPJ
(Clinton was impeached for LYING UNDER OATH in a SEXUAL HARASSMENT case NOT for an affair.)
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