Excerpt: The use of fly ash as an ingredient in concrete steadily increased for many years, mostly due to the benefits fly ash imparts to the qualities of hardened concrete—higher strength, reduced permeability, lower heat of hydration, and lowered susceptibility to alkali-aggregate reactions. With the desire to make concrete more sustainable, fly ash found a new niche: since it reduces the quantity of portland cement in a mix, it also reduces the carbon footprint associated with that mix, making concrete more sustainable. concreteconstruction.net/concrete-materials-and-admixtures/fly-ash-forever_o.aspx
Posted on: Thu, 22 Jan 2015 23:00:01 +0000
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