What are your "desired results"? The usual way of testing involves a 24-hour
"cold" water soak then a 5-hour boiling water soak. Decent bricks will not
fracture after this process. Freeze-thaw testing identifies poor bricks.



Eric Hammarberg
Director of Preservation
Sr. Associate
For those of you keeping score, there are 2 more changes. No longer
"interim" but just director and now an 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: Met History [mailto:[log in to unmask]]
Sent: Wednesday, July 09, 2003 3:29 PM
To: [log in to unmask]
Subject: brick soaking


I have a fragment of a white glazed brick.  I am soaking it in water, and
ultimately want to freeze it to see if the absorbed water will fracture the
brick.

1.      I don't notice any bubbles coming up.   Does brick not absorb water
in this fashion?
2.      How long should I wait?
3.      Once the water is absorbed, will freezing actually produce the
desired results?   Or should I just use a hammer?

Christopher


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