[PSUBS-MAILIST] concrete

[Marc de Piolenc]

A huge amount of work was done on concrete for pressure-resisting 
structures, including long term, deep exposure tests, by the US Naval 
Civil Engineering Laboratory. Most of the reports are available for 
downloading free of charge from DTIC.

Excellent results were achieved with concrete having NO reinforcement. 
There has been limited work done with prestressed concrete and even less 
done with reinforced concrete and ferrocement, which can reasonably be 
expected to give much more efficient and distortion-tolerant structures.

Marc

On 4/11/2014 8:25 PM, hank pronk wrote:
> A cheap alternative to a super strong sphere hull is re-enforced concrete. I feel like hiding under a blanket while I say this,lol.  I know it is way out there, but concrete is super strong under compression.  It is not so good for impact resistance.  Concrete is a very easy material to work with and form into a sphere shape.  I have no idea what thickness would be needed.  Properly engineered I would trust it.
> Hank
>
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