Cement products

Our museum is considering the use of a Concrete product called BOMIX
Solution 20 to construct table tops.  The tables would be display
cases, and have a four-sided plexi lid that sits on top of the
table, creating an air-tight environment.  Therefore, the inside of
the display case would have a cement base.  Display objects would
not have direct contact with the surface, but would still be in an
environment that contains potentially hazardous off-gasses from the
cement.

My question relates to this threat.  Can anyone on the DistList
point me towards good information or speak from experience about the
off-gassing of concrete, dry times, sealants, or whether this is
just an unacceptable idea in the first place?

David Stevenson
Conservator
Centre Canadien d'Architecture
Canadian Centre for Architecture
1920, rue Baile
Montreal, Quebec H3H 2S6
514-939-7001 ext 1204
Fax: 514-939-7020


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                  Conservation DistList Instance 28:36
                 Distributed: Friday, February 20, 2015
                       Message Id: cdl-28-36-017
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