david,
If I could add my 0.02 USD United States Dollars = 0.0256408 AUD Australia
Dollars:
APT Bulletin Vol. XXXIII No. 2-3 (2002): "Color and Long-Term Color Retention
in Composite Patching Systems for Stone and Masonry", by yours truly, includes
some follow-up study on 12-year-old sandstone repairs.
As for the Met Museum in NYC, yes, a number of patching systems were installed
as test patches in 2002(some looked very good, some less so) but the final
decision was made on the basis of (and I quote): "It just felt right". The
particular individual who made that decision also thought epoxy patching on
terra cotta "just felt right" 20 years ago.
Edison Coatings, Inc.
M. P. Edison
President
3 Northwest Drive
Plainville, CT 06062
Phone: (860) 747-2220 or (800)697-8055
Fax: (860)747-2280 or (800) 697-8044
Internet: www.edisoncoatings.com
E-Mail: [log in to unmask]
---------- Original Message -----------
From: [log in to unmask]
To: [log in to unmask]
Sent: Tue, 24 Feb 2004 09:30:05 EST
Subject: Re: [BP] stone patching
> David ; Michael here( gommage system) I think those articles listed
> below can be found at Avery Library Columbia Univesity..as for the
> phone # Ken ?...Ralph? Recently thhere were two high visibility
> projects in which the top fabricators of patch products were invited
> to give samples....White House and the Met in NYC. I do not know
> which product was written in the spec; Pyrate
>
> In a message dated 2/24/2004 2:00:10 AM Central Standard Time, Dave writes:
>
> >
> > David,
> >
> > Here are a couple of references. Whether you can actually get your hands
on
> > them is another matter. Let me know if you have problems.
> >
> > "Deterioration Mechanisms in Sandstone," Searls, C. & Thomasen, S. in
> > "Durability of Building Materials and Components," proceedings of the Fifth
> > International Conference, Brighton, UK, 7-9 November 1990.
> >
> > "Composite Stone Repairs at Drayton Hall: A Case Study of Stone Restoration
> > Techniques," ART XIV-3-82, pp. 37-41
> >
> > "Rehabilitation Approaches to Severely Deteroirated Brown Sandstone at the
> > Apex Building, Washington, D.C.," ART XVII-3/4-85, p. 65-68
> >
> > "Acrylic Polymers for the Conservation of Stone: Advantages and Drawbacks"
> > by Marisa Laurenzi Tabasso, ART XXVI-4-95, pp. 17-21
> >
> > "Consolidation Treatment: Massillion (Ohio) Sandstone" (and Klaus J. H.
> > Zinsmeister, and Frances R. Gale), ART XX-3-88, pp. 35-39
> >
> > Regards,
> >
> > Dave Woodham
> >
> > ----- Original Message -----
> > From: "david west" <[log in to unmask]>
> > To: <[log in to unmask]>
> > Sent: Monday, February 23, 2004 3:39 AM
> > Subject: [BP] Patches, artificial stone
> >
> >
> > > Here's another technical query from down under.
> > >
> > > I've recently been challenged to provide justification
> > > for my proposal to use latex-modified cementitious
> > > mortar patches for repair of decayed or damaged
> > > sandstone.
> > >
> > > In the process of searching for papers or articles
> > > documenting research into the performance of such
> > > patches, I've discovered that there actually doesn't
> > > seem to be much information about ANY form of patch
> > > for repair of decayed sandstone, whether it be
> > > cementitious, lime-based, epoxy, acrylic, polyester
> > > (collectively often known as 'artificial stone') or
> > > even dutchman (indents).
> > >
> > > So, my request is for any suggested published sources
> > > that provide information about the longer-term
> > > performance of patching materials in sandstone.
> > >
> > > Thanks
> > >
> > > David
> > >
> > >
------- End of Original Message -------
--
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