Cob: RE: Silica sand ?

[David Knowlton]

Patrick,

I did public health for the navy. The diseases caused by fine particles that 
the body can't expel always end in 'osis'. Asbestosis, silicosis, and on. 
The lining of the lungs gets hardened from deposits the body forms around 
the stuff. Lungs sometimes collapse - yuck. Just wear a dustmask, and don't 
worry too much, because your exposure is not occupational.

David

>From: "Patrick Newberry" <PNewberry at HFHI.org>
>Reply-To: "Patrick Newberry" <PNewberry at HFHI.org>
>To: <coblist at deatech.com>
>Subject: Cob: RE: Silica sand ?
>Date: Mon, 3 Dec 2001 13:25:37 -0500
>
>
>  Just a question. I'm doing my lime plasters right now! Yes that means
>I've finally (after 3 years)
>  have all my walls structurally complete. My question, however is that
>for the final coat I mix my lime
>  with this sand available from the local sand pit, just up the road.
>They call it silica sand or silcon sand
>  or something like that. It is very very very fine. I had a bucket of it
>once in back of my pickup truck and
>  by the time I got home, the bucket was  empty. One of the truck drivers
>mentioned that it can be a health
>  hazard, cause black lung or something like that. Sorry for the
>vagueness, but can find out more details
>  if needed. The stuff is super white and fine. I've made plasteres with
>it before and was carefull about
>  breathing it. But thought I'd get some feedback.
>
>  Does anyone know the proper name for this stuff?
>
>  Will it be a problem after the silca sand / lime plaster dries on the
>wall?
>
>  any other advice?
>
>
>  Thanks
>
>  Pat Newberry
>  www.gypsyfarm.com
>


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