permaculture

["Lawrence F. London, Jr." <lfl@intrex.net>]

Kate Halstead wrote:

> Although this was the wet NW, during the dry months, dust was never a
> problem the way it was in areas that had no glass or just some gravel.
> Seemed like with a few good rains all the small particles settled into the
> crevices and I never recall it being a problem, not even when it was being
> hauled in, dumped, and graded. This crusher didn't seem to powder it at all.
> The finest particles were more like coarse sand and the bulk about the size
> of lima beans. We did have dust, but just from the dirt/gravel road leading
> into the place, never off the glassed areas.

That seems to cover the only risk I could think of; dust washes through the 
larger particles
to settle into a compacted undisturbed layer well below the driveway surface.

> Everyone was skeptical at first, but it wasn't long before the guy hauling
> the stuff had more folks wanting it than time or material available. Several
> nurseries in the area used it to pave all their secondary roads and parking
> lots. Only caveat was beware where you put the light-colored loads--very
> bright on a sunny day. The sparkle and glare can be quite unpleasant.

Aha, another use for this material: embed it into masonry in house interior 
to reflect incoming light and brighten it up
w/o using artificial light. This would be especially useful in a greenhouse. Parge masonry walls with glass-embedded 
stucco or just pour pre-cast panels of aggregate with glass. Imaging the effect of having a privacy partition wall made 
of lightweight reinforced concrete-glass aggregate. You would have random colored light patters filtering through the 
panels as light made its way through wormhole-light channels in the aggregate.

LL