Lecture on stone treatment

A novel treatment for deteriorated stone

Norman R. Weiss and Irving Slavid
MCC Materials, Inc.
Colebrook CT, USA
Biochemistry Lecture Theatre
Darwin Building
University College London
Gower Street
London WC1E 6BT
Monday March 8, 2004
1:30-2:30 pm

Limestone and marble have been used for the creation of architecture
and sculpture throughout the world, and the decay of these carbonate
stones has long been a subject of great concern.  Research in the
United States, starting in 1996, has led to the development of a
novel, waterborne method of treatment, described as a hydroxylating
conversion treatment. The solution, easily absorbed, forms an
insoluble, well-adhered conversion layer on carbonate mineral
grains.  This layer acts to provide protection against environmental
acidity; its formation increases cohesive strength by intergrowth at
points of grain contact. The chemistry, although well known, is
entirely new to the field of stone conservation. It will be
presented in this lecture by Norman Weiss and Irving Slavid, along
with a description of methods of laboratory evaluation, and a review
of field testing sites in the UK.

All are welcome to attend.  Location  maps may be found at
<URL:http://www.ucl.ac.uk/about-ucl/location/>; the Gower Street
entrance to the Darwin building is shown in square E7 of the map of
the Gower Street site.  For further information, please contact
Clifford Price (c.price [at] ucl__ac__uk) or Norman Weiss
(nrw2 [at] columbia__edu).

Clifford Price
Institute of Archaeology
31-34 Gordon Square
London WC1H 0PY


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                  Conservation DistList Instance 17:56
                 Distributed: Friday, February 20, 2004
                       Message Id: cdl-17-56-011
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