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Re: [SG] Hypertufa stepping stones

On Mon, 25 May 1998, Susan Leard wrote:

> I am in urgent need of stepping stones to make paths. There is nothing but
> soft sandstone in this area. Importing slate costs a fortune. Concrete patio
> stones are too heavy for me to move, so hypertufa sounds great. Are there
> any special considerations when using it to make stepping stones rather than

Besides hypertufa, you can also just pour concrete stones in place...
dig a hole about 2.5" deep and the shape you want.  Using a sack of
concrete mix (and preferably adding one of the fiber amendments that
replace wire reinforcing), pour and level the stone in place.  You can
also dust the surface with powdered concrete dyes and/or mix in colorants
to make the concrete belongs in the area.  Or you can scatter some
of your soil on top and sort of trowel it in a bit... it usually results
in a bit of coloration and a slightly irregular surface more like
real stone.

Don't forget to wear good heavy gloves when working with concrete
or hypertufa... the alkaline cement can burn your skin badly.

Also remember to keep the surface of concrete or hypertufa moist
for a couple of weeks, so that it cures properly and has all the
strength it should have.

Soupy concrete mixtures yield less strong concrete then fairly
stiff ones.

Kay Lancaster    kay@fern.com
just west of Portland, OR; USDA zone 8 (polarfleece)
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