According to the Federal Highway Association, “Fly ash is the finely divided residue that results from the combustion of pulverized coal and is transported from the combustion chamber by exhaust gasses.” Fortunately, fly ash can be collected from these exhaust gasses and used in products such as Portland cement concrete, soil and road base stabilization, flowable fills, grouts, structural fill, asphalt filler and — water piping?
According to an award-winning poster created by Stephen Gordon, a Ph.D. student at Louisiana Tech University, the answer is yes. In his poster titled “Vitrified fly ash pipe (VAP) as an alternative to VCP” —
