Any idea what it would look like if it had been in place since 1822 
+/-, repeatedly flooded and subjected to hurricanes and four days of  
bombardment by Farragut in 1862, then rebuilt by the army?  Some of  
the mortar is worn smoothe.  Lots of shells and pockets of  
voids...almost looks like dirty marble.  But, of course a great deal  
of it is missing.

Any idea where the army would be ordering brown stone at that time?

-jc

On Mar 12, 2006, at 6:51 AM, edison wrote:

> Natural cement could have been used as early as 1796, but would  
> have been very
> expensive to import from Europe. US production began in 1818.
>
> Edison Coatings, Inc.
> Michael P. Edison
> President
> 3 Northwest Drive
> Plainville, CT 06062
> Phone: (860) 747-2220 or (800)697-8055
> Fax: (860)747-2280 or (800) 697-8044
> Internet: www.edisoncoatings.com
> E-Mail: [log in to unmask]
>
> ---------- Original Message -----------
> From: John Callan <[log in to unmask]>
> To: [log in to unmask]
> Sent: Sat, 11 Mar 2006 20:54:40 -0600
> Subject: Re: [BP] Re Salt with lime
>
>> Could natural cement without lime have been used as early as 1822?
>>
>> -jc
>>
>> On Mar 11, 2006, at 8:25 PM, edison wrote:
>>
>>> 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>
>>
>> --
>> 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>

--
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>