[GSBN] Emerald update (GSBN Digest, Vol 33, Issue 17)

[John Swearingen]

I agree, it's certainly worth a try, if the render has any strength at all,
and the loads on the wall are not great.

John "Half a bale is better than One" Swearingen


On Tue, Feb 8, 2011 at 10:12 AM, Derek Roff <derek at unm.edu> wrote:

> Hi, Chris,
>
> I wanted to suggest that it may not be necessary to install the temporary
> beams and jacks that you describe, to support the wall while you are
> replacing the bales (leaving aside, for the moment, the question of what
> material will be chosen to replace the bales).  I think you will find that
> you can pull a single bale out at a time, leaving empty air, and see no
> settling of the bales above during the replacement process.  Then install
> the new material, and move on to removing the next bale.  It's worth an
> experiment, anyway, in a sample spot.
>
> This has been done on a number of repairs that I have read about in The
> Last Straw, and a couple that I have been personally involved with. Removing
> bales from two courses at once might change things, but leaving the exterior
> lime plaster intact will transfer a lot of load from the bales above.
>
> With the bales decaying, you may find that you can remove half a bale as
> easily as a whole bale, perhaps more easily.  When I have tried to remove
> badly decaying straw, it comes out in handfuls, and not in bales, or even
> large clumps.  There is little strength left, and you can remove the straw
> that you grab, but neighboring straw doesn't move much.
>
> Pulling out half a bale width for the lower two courses of bales, and then
> inserting the new material, is even less likely to require any beam and jack
> support.
>
> What do others think?
>
> Derelict
>
>
>
> --On Saturday, February 5, 2011 5:16 PM +1000 Chris Newton <
> chris at newtonhouse.info> wrote:
>
>  My understanding is that they are thinking of leaving the external
>> wall of lime intact. A few extra expansion joints before work starts.
>> Working segment at a time.
>> Breaking some holes through the width of the wall using Lance?s
>> coring piece.
>> Placing beams through these which will be supported by jacks.
>> Removal of straw below (still leaving that lime on the external
>> surface)
>>
>
>
>
> Derek Roff
> Language Learning Center
> Ortega Hall 129, MSC03-2100
> University of New Mexico
> Albuquerque, NM 87131-0001
> 505/277-7368, fax 505/277-3885
> Internet: derek at unm.edu
>
>
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-- 
John Swearingen
Skillful Means Design & Construction
2550 9th Street   Suite 209A
Berkeley, CA   94710
510.849.1800 phone
510.849.1900 fax

Web Site:  http://www.skillful-means.com
Blog:         https://skillfulmeansdesign.wordpress.com
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