From:
Simon Brown <moonsong@zzzzzzzzzzzzzzz>
Date:
Thu, 23 Sep 2004 09:11:47 +0000 (UTC)
Subject:
Old stone repair?
Marcus <marcus@... > writes:
Quoted text begins.Its bothered me for a couple years that my boss and I threw it back together
End of quote.
again without investigating proper conservation techniques
Dear Angus,
I don't want to criticise because I have done similar jobs with the same
nagging feeling that there must be a more respectful way to deal with neglect,
accidents and vandalism. The problem began with the attitude of the owners who
left the column unsecured, and continued with the owner allowing a quick fix
rather than paying for proper advice and craftsmanship.
My short reply to your question is: Use a stainless steel dowel and white
mortar to bond the broken pieces together. Patch the crack with whiting
(powdered limestone, preferably same as the repaired stone, could use drill
dust from the dowel holes) mixed with white / off-white cement and lime
together with salt-free sands to tint.
My long reply: ICOMOS
US/ICOMOS http://www.icomos.org/usicomos/ is the US National Committee of the
International Council on Monuments and Sites. Look up some local members and
seek their advice on future conservation and preservation projects.
Australia ICOMOS uses the Burra Charter to plan decision-making for heritage
places http://www.icomos.org/australia/burra.html Burra is a town in South
Australia where the principles of the Venice Charter were adapted to
Australian conditions. I don't know what is used in the US.
Your column repair would make an excellent case study in heritage
conservation, now that you can look back and examine how you went about it.
The term 'cautious approach' is stressed at the beginning of the document. Not
so evident is the abbreviation for Article 3.1 DAMANBALUP (Do as much as
possible but as little as necessary.
It is important to undertake proper research to determine what is important
about the article and deciding on the conservation approach. You might use the
dowel and mortar repair method described above (repair/restoration).
Otherwise, it might be decided that you display the broken pieces in a museum
and replace the column with an obvious imitation made from concrete
(preserve). Or you could make a new column shaft to replace the broken pieces
(reconstruction).
I think that the use of EHD construction adhesive is ruled out by Article 15.2
(should be reversible). Probably the dowel would have to be justified in terms
of
Recording the process is also important, particularly if it is a public
monument.
I hope this helps instead of confusing the issue.
Regards,
Simon
- References
- message 00645: Old stone repair? - Karen Bereza (22 Sep 2004)
- message 00647: Old stone repair? - John Twilley (22 Sep 2004)
- message 00654: Old stone repair? - Marcus (23 Sep 2004)
- Previous by Thread: message 00654: Old stone repair? - Marcus (23 Sep 2004)
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