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
> >
> >