Re: [PSUBS-MAILIST] 200ton 18meter Live aboard submarine

[MerlinSub@t-online.de]

I remember that there is a maybe problem with stainless steel in concret. 
I think both materials will get no real conection together.. 

If the normal steel is deep sealed in he concret and the surface is covered by a good 
layer of some good epoxy paint there should be no problem with normal steel in concret. 

More important is that the design and construction concept with all drawings 
is complete done and all troughhulls are build before they build the hull - otherwhise Ian has later a lot of more work  with some 40-60 troughhulls for shaft rudders mast, exhaust pipes, bowthrusters, air piped, drop weights. etc, etc. 

On a steel hull it is later easy to modyfied it with additional troughhulls 
- even hatches or windows - on concrete this should be much more difficult. 

regrads Carsten 

<ShellyDalg@aol.com> schrieb:
> Ian. I recently saw a documentary about some of the bridges along the  Calif. 
> coast, and even though the re-bar isn't directly exposed to salt water,  
> there is a problem with it rusting out while inside the concrete of the bridges.  
> It has to do with electrical activity. Anyway, one of the bridges was built  
> using stainless re-bar and it is still like new after 70 years, where some of  
> the others have required extensive repair because the concrete is spauling ( 
> sp?  ) around the re-bar where it has rusted and actually popped the concrete.
> I don't know how much re-bar is going into the hull, but the cost of  
> stainless re-bar is several times that of plain steel, but still cheaper in the  long 
> run.
> I received my steel hatch back from the machinist today. He planed the ring  
> and cut the groove for the ''O'' ring. Hope to have it installed soon. I'll 
> add  some pictures to my frappr site when it's on.
> As for a drink together, that sounds good.
> Are you planning on a trip to Wil's to see the progress ? 
> Have a good new years. Frank D.
> 
> 
> 
> **************************************See AOL's top rated recipes 
> (http://food.aol.com/top-rated-recipes?NCID=aoltop00030000000004)
> 




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