Brian,
The quality of
the water is also important. Here in the Bahamas they use slightly brackish
water and their rebar quickly corrodes as a result resulting in spauled
concrete.
R/Jay
From: owner-personal_submersibles@psubs.org
[mailto:owner-personal_submersibles@psubs.org]
On Behalf Of Brian Cox
Sent: Wednesday, February 14, 2007
12:04 PM
To: Personal_Submersibles@psubs.org
Subject: [PSUBS-MAILIST] concrete
sub - sand and gravel
Wilfried,
Where you plan to build the concrete sub, what is the quality of the sand and
gravel ? According to concrete experts that I have talked to this is very
important for the ultimate strenght of the cured concrete. For instance,
here in Ventura California where I live, the geology of the
area here on the coast, the rock here is not good for strong
concrete. I have to make sure I get sand and gravel from the desert area
where there are deposits of granite.
Brian Cox