Interesting information about Yucca.
The volcanic cinder idea harkens back to the ancient Romans. They
used volcanic ash as portland in their early concrete. If you can
find a deposit that hasn't been exposed to rain it likely will be
very chemically reactive.
--- In papercreters@yahoogroups.com, "howdyrc" <howdyrc@...> wrote:
>
> Small amounts of baking powder will induce bubbles into water. I
know
> this for a fact. My scrambled eggs are always light and fluffy
after
> adding a litle baking powder and water mix! But bubbles in a
structural
> componate is weak! That's why you vac. out air in composite molding.
> For several years cement engineers have added small styrofoam
pellets
> into concrete to lighten formed thick slurry concrete blocks. As
well
> as internel insulation. Check out Labrador, Iceland, Finland
concrete
> buildings made with light concrete blocks.
> For you purest.....dried yucca trunk has great value.
> http://www.herbalextractsplus.com/yucca.cfm
The dryed strands keep
> anyway bugs and is stronger than grass, Several desert dwellers
used it
> for adobe blocks. You might ad a little to papercrete blocks for
> reinforcment and insulation.
> Here is another suggestion...cinder....there are vocanic cinder
cones
> all over. Very light stronge and a great filler for papercrete
blocks.
> But it does ad red to the color!
> Cheers!
> Howard
> Chloride, Arizona
>
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