are you talking about adding just portland cement to the pumice, with
no fiber or sands?
Don J. in OR is building using pumice as underfloor insulation for
his SB home. and was planning to bag it up for the foudation perimeter
to support the bales.
I tried mixing limeputty- just a thin mix of limewater and putty with
teh pumice, after two weeks it had not joined well enoough to stick
together in cvlumps or in a form. so it was a waste to add lime in
that case. if you mean pouring into bags or as a form made with
cement, yes you can use no sand, and get one kind of fragile- no
tensile strrenth block. with fibers- straw or nylon will add greatly
to it staying together, and not crack as easily.
Inventor Tapasananda builds in a community group in MI with his
ParaCrete** uses EPS dust ( styrofoam dust smaller than pumice bits,
) also larger EPS beads, + OPC, fibers, chopped twine etc, and since
pumice floats in water easily you can add a surfactant like latex
paint, dish soap and commercial "wetting" agents to keep the pumice
from clumping & not dispersing
**-- read more on his mix here: http://www.dirtcheapbuilder.com/pabubooncd.html
Ms. Charmaine Taylor/ Taylor Publishing
Toll Free Order: 1-888-441-1632
www.dirtcheapbuilder.com www. papercrete.com
PO Box 375, Cutten CA 95534
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