On Thu, 20 Jun 2019 17:02:07 +0700, John B.
<
jbslocomb@fictitious.site> wrote:
On Wed, 19 Jun 2019 06:54:06 -0700 (PDT), supercentimo@hotmail.com
wrote:
Hi everione, I bought a ferrociment boat in a ouction. It's full of cracks on deck.
I open them untill i find no more corrosion. aprox 4cm wide x 2cm deep. most of them are lke 60cm long perpendicular to the boat.
I tried to make poliester fillers mixing it wit microfibres, talc poulder or cement. But about 7 days later they crack again or the filler separe of the concrete....
So i0m looking for some product that have this caracteristics: >>.Anticorrosive
.Flexible enough to not crack again.
.totally glued to concrete.
. able to sand it to make the deck flat
I call many cement companes. but they are not sure what to recomand me.
I hope someone have some experience with that.
thank you! good winds!
I just e-mailed a good friend who had a 50 ft. ferro-cement ketch for >something like 20 years, and asked him what he would recommend. Will
let you know what he suggests.
Just received following from my mate:
It sound like he has a prob, polyester etc would be WORSE than
useless. What's wrong with cement and clean sand ( NOT beach sand )
and a wet epoxy binder . Tho if 2 cm cracks he's also lost the FERRO
so would need to clean back till he can splice more in, really needs a
rattle gun used sparingly ..Never liked ferro decks as very hard to
lay and keep the 20mm thickness as in the hull (it tends to sag badly)
saw one the deck was 1,5 inch WAY too thick ( it sank ).
Except for bows where anchor banged there were no cracks at all in
Redmoon,, but had to repair bows fairly often,, tho they NEVER leaked,
repeat NEVER ..
My Note:
Beach sand frequently, if not always, is contaminated with salt which
makes it NOT the right material to use for mixing concrete.
I hope that this is of some help.
Cheers.
--
cheers,
John B.
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