Posted by tim mccarthy on March 18, 2003 at 17:40:33:
In Reply to: Stone walls posted by William Edward Bennett on December 19, 2002 at 08:22:00:
I am an architect in upstate NY with some examples of slipformed stonework that you speak of. I call it farmer stone, it has a nice old farmer, pointed several times look.
I dont think your idea of a retarder is nessecary. If yours forms slip up the wall, you have to make sure two things happen.
-that you slip the forms up while the concrete/mortar is still green. this could be the next morning or afternoon depending on the climate.
-and you pour a pretty stiff mix that keeps the concrete from washing down the fronts.
when all the rough stone work is done, you can then point up the wall with gloved hand and or trowel. I have done some without the final pointing and it looks fine, artsy but fine.
check out our website www.timmccarthyarchitect.com
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