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GSBN: Digest for 1/8/05

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-> Re: GSBN:What type of sand?
     by "Martin Oehlmann" martin.oehlmann@...


Date: 8 Jan 2005 09:21:42 -0600
From: "Martin Oehlmann" martin.oehlmann@...
Subject: Re: GSBN:What type of sand?

Dear Andre, Frank and others,

back from sandy coast in Brittany I see your mail on that sand. I got that
sharp sand advise from a manufacturer of lime, as they did some tests on the
right sort of sand. Would like to encourage asking the manufacturers on
what's best in view of local options.

Frank answered observations which I share. Returned from a straw-bale
project in Brittany where "karolin" sand had been used, which did not work
fine. Also the walls had not been build rather straight, so the amount of
stucco got to heavy and some of the stuccoing had to be redone. They did not
shave the walls and just sprayed the lime on the walls. Luckily the owners
are easy and flexibel in restoring, now they would inform better at the
beginning of a project.

Best wishes for 2005,


- ----- Original Message -----
From: forum@...
To: "GSBN" GSBN@...
Sent: Saturday, January 01, 2005 4:12 PM
Subject: GSBN:What type of sand?

> Martin O> commented that crushed/angular sand is preferred for lime
> (because it interlocks?).
> Other sources (books on renovation using the old techniques)prefer
> 'round-sand'/'river-sand'.I think this is what the oldies used, as I
> imagine them crushing the sand.
> Some say sand from the beach is/can be ok, or should be washed. Others say
> shouldn't use it.
> I have not been able yet to form myself an oppinion other than: it is
> to test and most sands would probably work.
> Any of you have theories/experiences to share on this subject?
> Would there be any different behavior for lime, earth or cement mixes?
> Bye,
> Andre
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