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RE: Concrete additives for Pool on roof?

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Thank you both for weighing in on this question.

I appreciate your wisdom and help.

Take Care,
Lloyd Pack

On 6 Aug 2008 at 14:20, Harold Sprague wrote:

> 
> Stan speaks wisdom. You may want to considerdevelopinga concrete mix
> design predicated on performance to include shrinkage and
> permeability. We also loose sight of what is done justto pump
> concrete. You can also restrict or preclude pumping concrete. With the
> mini-conveyors and the option of bucketing concrete, it is not that
> much of an encumbrance. 
> 
> Regards,
> Harold Sprague
> 
> 
> From: sscholl2(--nospam--at)juno.com
> Date: Wed, 6 Aug 2008 04:43:50 +0000
> To: seaint(--nospam--at)seaint.org
> Subject: Re: Concrete additives for Pool on roof?
> 
> Properly proportioned and mixed concrete is water tight. No admixtures
> are needed. Do not use less than a 6 sack mix. In public works, for
> waterreservoirs we use concrete without admixtures regularly. Stan
> Scholl, PE Laguna Beach, CA
> 
> 
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