Monday, July 9, 2007

[papercreters] Re: PC and freezing

If you're concerned about freezing. I suggest testing the mix you
hope to use. Make a small batch and run it through some freeze thaw
cycles in your freezer. Then you'll KNOW what to expect and won't be
surprised. This will help you plan accordingly in your construction
schedule.

--- In papercreters@yahoogroups.com, Stone Tool <owly@...> wrote:
>
> As things stand here, I expect to be getting a very late
start on my
> project...... but that is better as the climate is better for this
kind
> of work in the fall here....... we had an incredibly wet start.
>
> My ultimate choice of construction methods for reasons of
practicality,
> and taking into account Bob Merrill's always sound advice will end
up
> being strawbale construction with gunned on PC. The bale walls
will
> NOT be load bearing in the conventional sense....... essentially it
will
> be a pole barn construction with bales stabilizing things rather
than
> the usual sheet metal. ]
>
> I will end up gunning the PC onto the bales..... using the
mix I've
> dubbed "stickystucco" and either a tyrolessa, or a makeshift
shotcrete
> system...... there's a lotta footage here so I would prefer to gun
it
> rather than spray it.
>
> I anticipate that I will be running up to the proverbial 11th
hour, and
> shooting PC at a time when freezing at night is a real
> possibility........ I actually is almost any time of year here,
though
> July and August are pretty safe as a rule....... Experience shows
that
> freezing will occur unpredictably at this elevation almost any
other
> time. I am needless to say, concerned about freezing of my wall
> coating, and how sensitive PC is to freezing during the setup
period.
> My assumption is that as it is primarily fiber, and has a some give
to
> it, the problems associated with conventional stucco....
particularly
> slow setting lime stucco will not be nearly so pronounced. In any
> case, the priorities will be to get the walls and roof up and
covered on
> the outside....... Plastic tarps may be desirable for nighttime
> protection for a few days, and the coating will be applied in
relatively
> light coats, perhaps stopping for the season if needed, after the
first
> coat or second. I envision a build up of about 3 layers to a
thickness
> of 1.5-2". I can close the building in and work inside anytime.
>
> Any thoughts on this program?
>
> Howard
>



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