Fly ash is similar but still doesn't perform just like basaltic volcanic ash [1] in admixtures. [1] https://www.mdpi.com/1996-1944/12/16/2603/pdf https://www.m

Fly ash is similar but still doesn't perform just like basaltic volcanic ash [1] in admixtures. [1] https://www.mdpi.com/1996-1944/12/16/2603/pdf https://www.mdpi.com/1996-1944/12/16/2603/pdf