Re: [PSUBS-MAILIST] Re: "Ferrocement" for hull material?

["Allan Gaines" <Allan_Gaines@yahoo.com>]

-----Original Message-----
From: Michael B Holt <michaelbholt@juno.com>
To: personal_submersibles@psubs.org <personal_submersibles@psubs.org>
Date: Thursday, January 27, 2000 06:57 AM
Subject: [PSUBS-MAILIST] Re: "Ferrocement" for hull material?


>On Wed, 26 Jan 2000 20:21:31 -0500 "Allan Gaines" writes:
>>While I was off the list, was there ever any discussion
>>on using ferrocement for hull material?  I've heard of
>>its use for building boats, and I also saw an article
>>in POPULAR MECHANICS magazine (or something
>>similar)  about the possibity of building subs from
>>material like this.  I've been wondering about it for
>>a while.  Thanks in advance.



>Welcome back, Allan.   You've been missed.



    Thanks.  Nice to be back.


>This has been discussed; I presume the details
>are in the archives.



    Roger that.  I'll check when I have some time online
(I've gotten behind on reading PSUBS in the last
couple of weeks).


>At the same time it was being discussed. on Yacht-L
>we saw message from a New Zealander who'd just
>finished his ferrocement hull.   He had the compressive
>strenght tested, and it came out about a tenth of what
>it was expected (and gaurenteed) to be.   That ended
>it for me: he'd used professional plasterers and other
>experts, and the result was totally unacceptable.



    So I take it that this definitely wasn't a "design"
problem- it just doesn't behave as advertised?