06-22-2011, 10:19 AM
"Can you add any recycled glass to replace part of the sand?
(I saw a "pic on the internet" of a wall made with the glass. "pic on the internet" is the phrase most dreaded by my husband!)"
We did try glass as aggregate some time back. ConAgg agreed to test it for me but it turned out to be very weak. I think that part of the problem was that the edges of the glass pieces are too smooth and don't make a physical bond with the cement. We ended up mixing the fine glass powder with cement and latex binder and brushed it onto our septic tanks as a protective coating. It worked well for that and the tanks sparkled in the sun which was cool.
(I saw a "pic on the internet" of a wall made with the glass. "pic on the internet" is the phrase most dreaded by my husband!)"
We did try glass as aggregate some time back. ConAgg agreed to test it for me but it turned out to be very weak. I think that part of the problem was that the edges of the glass pieces are too smooth and don't make a physical bond with the cement. We ended up mixing the fine glass powder with cement and latex binder and brushed it onto our septic tanks as a protective coating. It worked well for that and the tanks sparkled in the sun which was cool.