Re: Loaded Coal train NB through Sacramento today
Author: Ed Workman
Date: 07-21-2015 - 07:00
"..toxic...fly ash"
Well I spose if you ate enough of it.
But fly ash is an excellent additive to concrete-
makes it more workable, less permeable,
saves cement- which is made in big kilns with a lot of heat.
Last I looked, the plant[s] at Fort Bridger were a good source of it.