Sorry for the late response, has anyone else written?

As usual I have more questions before answers:
Is the stone over back up brick or solid stone? If veneer, how thick is the
stone and how is it anchored? Do you think the stone is stable?
I am concerned about the weak mortar within the wall section. Can the wall
be adequately repaired by repointing alone?

Eric Hammarberg
Associate Director of Preservation
Associate
LZA Technology
641 Avenue of the Americas
New York, NY 10011-2014
Telephone: 917.661.8176 (Direct)
Mobile: 917.439.3537
Fax: 917.661.8177 (Direct)
email:  [log in to unmask]


-----Original Message-----
From: [log in to unmask] [mailto:[log in to unmask]]
Sent: Monday, February 18, 2002 11:24 PM
To: [log in to unmask]
Subject: Re: Stump the Chumps


Location Location location .
....nope but its real near me
...but meet me at 4 corners Ariz. with the other half of the Jello box.and
I'll tell
.Ive taken the column down already and awaiting soil stabilization .

...Meanwhile another stump the chumps
Large Ohio sandstone church 1870(English country Gothic) Dimensional  stone
(3 sides
have sq planes)
Very finely bedded Joints 3/8 - 1/8
brick back up at interior
 Original mortar... Lime putty

1967 Repointing with Portland mix

Water has gotten behind stone from leaks in gutters
also Heavy foliage, and improper landscaping  causing continual
wetness-allowing no drying cycle

conditions
Joints too hard causing the "free"stone to delimitate (shear) at bedding
plane
Note: free stone is called such because it is difficult to tell where the
bedding plane is
Water is also causing the skin to weaken and pop in cold weather; and hot
sun

Portland pointing did not allow the water to weep properly
also had no "give" causing the arris to split
Some areas of continuos wetness has caused the stone to loose some of its
cementatious  quality, appearing dull grey and flaky from orginal hard with
warm buff color

Orginal bed joints now 60% washed out (dust ) leaving voids behind portland

The question without much fanfare
 is  how to proceed on the  voids

use 00 sand does one
A. Repoint 1-1-6   with backer rod     without backer rod
  B Re point  lime putty  (complex lime mortar)
C. grout with lime and caseine at 3 ft intervals going up the wall using pig
tails
after grout stabilizes  repoint portland with  putty.

Remember there are now wrong answers only better solutions
.........and there is only one idiot among us ..and thats the village idiot
or me for asking these menu questions...Best Michael

--
To terminate puerile preservation prattling among pals and the
uncoffee-ed, or to change your settings, go to:
<http://maelstrom.stjohns.edu/archives/bullamanka-pinheads.html>

--
To terminate puerile preservation prattling among pals and the
uncoffee-ed, or to change your settings, go to:
<http://maelstrom.stjohns.edu/archives/bullamanka-pinheads.html>