[AT] OT - Concrete

[David Rotigel]

Note to self--BELIEVE EVERYTHING YOU READ!
	Dave

On May 3, 2010, at 8:41 PM, Willie & Debbie Boggs wrote:

> I remember reading an article in Scientific American, probably 35  
> years ago,
> about concrete and the crystalline structure. It mentioned that  
> concrete
> continues to cure.
> 10± years ago, an I-25 bridge was being rebuilt when some concrete  
> cylinders
> from 1959 were discovered buried in the fill. For giggles the guys  
> took them
> to the lab and they broke at something around 10,000 psi, and that  
> was a
> 3250 psi mix design. Pretty near ideal conditions I admit, but I  
> just wanted
> to put my 2 cents worth.
> wwb
>
> --------------------------------------------------
> From: "David Rotigel" <rotigel at me.com>
> Sent: Monday, May 03, 2010 5:11 PM
> To: "Antique tractor email discussion group" <at at lists.antique-tractor.com 
> >
> Subject: Re: [AT] OT - Concrete
>
>>
>> On May 3, 2010, at 6:38 PM, Willie & Debbie Boggs wrote:
>>
>>> Concrete supposedly continues to cure for ever
>>
>> I think this would be VERY hard to prove!
>> Dave
>>
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