Lime is generally unsuitable for immersion in any type of water for several 
reasons. First, it is slightly soluble in water and will erode. Second, it 
takes a long time to carbonate and cannot withstand immersion in an 
uncarbonated condition, nor can it carbonate in an immersed condition.

Natural cement without lime was used in US coastal fortifications after 1825 
in areas which were subject to immersion. In non-immersion construction, some 
lime was added to natural cement to reduce cost. Presumably the natural cement 
acts as a pozzolan in these mixtures.

Michael P. Edison
The Second American Natural Cement Conference
www.naturalcement.org


---------- Original Message -----------
From: [log in to unmask]
To: [log in to unmask]
Sent: Sat, 11 Mar 2006 13:17:45 EST
Subject: [BP] Re Salt with lime

> Better minds can respond to this query ,but lime mortar absorbs water 
> then  at a certain point sheds it , salts are crystals that " 
> bloom"with the wet dry process prior to Portland ,fort work was 
> "capped " with Natural Cement (see  conference with Mike Edison) this 
> according to documentation found in the Army  Corps of Engineers 1898 
> Why? because of its strength and ability to shed water 
>  
>  
> 
> --
> To terminate puerile preservation prattling among pals and the
> uncoffee-ed, or to change your settings, go to:
> <http://listserv.icors.org/archives/bullamanka-pinheads.html>
------- End of Original Message -------

--
To terminate puerile preservation prattling among pals and the
uncoffee-ed, or to change your settings, go to:
<http://listserv.icors.org/archives/bullamanka-pinheads.html>