[TowerTalk] concrete testing

[Alan Lisitano]

Yes it is an incentive, but unless you know how to fill and cure the
test cylinders the concrete supplier will say that they were made wrong,
stored wrong, cured wrong and the list goes on. If you want to make or
have test cylinders made have an independent test lab come out to the
site, they should be ACI certified technicians. They will test the
concrete for air, slump, and make test cylinders. If the pour is large
enough you may want to test each load or the first and one other load.

Alan Lisitano, N1ITT

-----Original Message-----
From: towertalk-bounces at contesting.com
[mailto:towertalk-bounces at contesting.com] On Behalf Of jimlux
Sent: Wednesday, September 01, 2010 9:30 AM
To: Towertalk Reflector
Subject: [TowerTalk] concrete testing

So you have your concrete delivered, test canisters filled.  You wait
28-30 days and have the canister tested and Whoops, it fails the test. 
What happens next?  I know that if it failed by a "little bit", most of
us would just figure, heck, use as is, that's what design margin is for.

But realistically, say it was totally defective.  Is it demolish the
(huge) cube o' concrete and send a bill to concrete vendor time? (I'm
assuming the delivery contract says that if they don't deliver the right
material, they're responsible)
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