[Cob] Making lime

[Predrag Cvetkovic]

Ed, what is (approximately) the size of shredded paper? Did you choose that
because it is easier to work with then with shredded straw (results are
better?) or  you just didn't have straw?
Predrag


On Mon, Jun 2, 2014 at 1:06 PM, Henry Raduazo <raduazo at cox.net> wrote:

>         I have a supply of lime which is free for anyone in the Washington
> DC area. I used a lot less then I thought I needed.
>         Instead of covering my strictures with lime putty, I made a putty
> of earth plaster from clay, shredded paper and fine sand. Then I just
> coated this with lime paint. It saves a heck of a lot of lime and the
> finished result looks a lot better. That is because you can re-wet mud
> plaster and hard trowel it to make it perfect before you apply the lime.
>         I have tried using sand/lime putty, and once the stuff is hard you
> can't do anything with it. It has to be perfect before you let it harden.
> That is a good trick even if you are doing only a small section of wall
> surface. I really screwed up trying to lime putty a 12 foot by 10 foot
> section of wall in one day. My brother and I messed with that all day and
> it still does not look half as good as lime painted mud plaster.
>
>
> Ed
>
> On Jun 1, 2014, at 10:20 AM, Mike Creedy wrote:
>
> > I need lime to use on my dome. Having done some research, it seems that
> a high calcium lime is the way to go. Not to get into the lime in the
> market place, perhaps it would be useful to make some from sea shells. So I
> collected about a ton of clean oyster shells, washed and stored them.
> > I have a rocket heater under construction and can try keep the temp.
> around 860 degrees C. (Hopefully). Have a pyrometer to monitor.
> > In days gone by...... Back in the land of my fathers... They burned in
> "ricks" as you may well know. This burn lasted more than 24 hrs. ? My
> question is...
> > Using the smaller quantities (to start with, only 30 gal. drum), how
> long should I fire to drive off the CO2 and gasses and if it is under
> fired, can I re-fire the shells that are under fired?
> > Efficiency of the firing probably has a lot to do with the old time
> firing for many hours, so basically I would like to know about the
> re-firing really. Perhaps fire for say 4 hrs and check. If it under-fired
> it can be used for Tabby mortar?
> > Hopefully there's some experience out there which will point in the
> right direction.
> > Best regards
> > Mike
> >
> >
> >
> > Floridadomehome.com
> >
> >
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