[Ferro List] optimal usage of materials

[Kosta Dellios]

Hi Walter,

My intention is to use a gravel bed on the bottom of the pool. When you say "lots of gravel fill" what is lots? 

I didn't know that the clay can cause so much problem as to pop the pool.  I know it could cause cracking of concrete walls so care has to be taken to deal with the shifting between wet/dry periods.  They way I was going to deal with that was via a stable foundation and reinforced concrete pool floor. 

Cheers,

Kosta





----- Original Message ----
From: Walter Jeffries <walterj at sugarmtnfarm.com>
To: Ferrocement Discussion List <list at ferrocement.net>
Sent: Monday, January 14, 2008 5:34:20 PM
Subject: Re: [Ferro List] optimal usage of materials


On Jan 14, 2008, at 5:34 AM, Kosta Dellios wrote:
> The pool is going to be built in-ground on expansive clay grounds.

Eek. I would do lots of gravel fill around it for drainage and to  
counteract the expansiveness of the clays. A concern is the pool  
popping up gradually over time as the clays shift it.

On the layering, perhaps the two layer method around a core would  
help with the expansive clays but I really don't know.

Good luck and keep us all posted.

Cheers,

Walter Jeffries
Sugar Mountain Farm LLC
Orange, Vermont
Pastured Pigs & Sheep
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