They're the smart ones, I wish I could work with them
Thanks,
Eric Hammarberg
Director of Preservation
Associate
LZA Technology
641 Avenue of the Americas
New York, NY 10011-2014
Telephone: 917.661.8160 (Direct)
Mobile: 917.439.3537
Fax: 917.661.8161 (Direct)
email: [log in to unmask]
-----Original Message-----
From: Ruth Barton [mailto:[log in to unmask]]
Sent: Wednesday, January 15, 2003 1:09 AM
To: [log in to unmask]
Subject: Re: Mortar Set Accelerator
Hi Eric, Chemically inclined I ain't--passed chemistry by taking the
advice of older girls who advised to wear tight sweaters, short skirts and
sit in the front row and offer to stay after class and wash beakers or
whatever those glass things are called. Having given that caveat, the
farmers in these parts don't like cement that has calcium chloride in it.
They say it is not as strong, develops cracks, and doesn't last as long,
giving them more problems. They just wait til spring. Ruth
At 5:02 PM -0500 1/14/03, Hammarberg, Eric wrote:
>We are having a real winter here in NYC this year and I have a few projects
>that contractors and owners want me to allow the use of mortar set
>accelerators. They think this will allow them to work unprotected in any
>temperature. I have always rejected accelerators due to problems with bond,
>efflorescence, etc. and that we have successful, yet expensive,
>recommendations in our specs including heating masonry materials,
>windbreaks, blankets, etc. I was hoping some of you more "chemically
>inclined" BPers could help me explain more precisely why the following are
>bad:
>
>* Euclid, Euco Winter Admix. Active ingredient appears to be Calcium
>Chloride.
>
>* Grace, Morset. Active ingredients appear to be Calcium Nitrate,
>Calcium Nitrite, and N-Nitrosodiethanolamine.
>
>Please be as detailed as possible.
>
>Thanks,
>
>Eric Hammarberg
>Director of Preservation
>Associate
>LZA Technology
>641 Avenue of the Americas
>New York, NY 10011-2014
>Telephone: 917.661.8160 (Direct)
>Mobile: 917.439.3537
>Fax: 917.661.8161 (Direct)
>email: [log in to unmask]
>
>
><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
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>--
>To terminate puerile preservation prattling among pals and the
>uncoffee-ed, or to change your settings, go to:
><http://maelstrom.stjohns.edu/archives/bullamanka-pinheads.html>
--
Ruth Barton
[log in to unmask]
Westminster, VT
--
To terminate puerile preservation prattling among pals and the
uncoffee-ed, or to change your settings, go to:
<http://maelstrom.stjohns.edu/archives/bullamanka-pinheads.html>
<><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
The information in this email and any attachments may contain
confidential information that is intended solely for the
attention and use of the named addressee(s). This message or
any part thereof must not be disclosed, copied, distributed or
retained by any person without authorization from the addressee.
If you are not the intended addressee, please notify the sender
immediately, and delete this message.
<><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
--
To terminate puerile preservation prattling among pals and the
uncoffee-ed, or to change your settings, go to:
<http://maelstrom.stjohns.edu/archives/bullamanka-pinheads.html>
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