Influence of Thermomechanical Processing of Biomass Ash on Mineralogical and Microstructural Evolution of Alkali-Activated Biomass Ash Binder

Abstract

AbstractThe production of portland cement is CO2-intensive (contributing 7%–8% of global CO2 emissions), and large volumes of biomass ash (BA) from agricultural and bioenergy industries are landfilled yearly; both scenarios represent environmental risks. This ...Biomass ash was dried at 100°C, ball-milled, and dry-mixed with powder activators. One-part alkali-activation promoted the formation of C-S-H and silica gel co-existing in the microstructure.Practical ApplicationsMaking portland cement releases a lot of CO2 (about 7%–8% of global emissions), and millions of tons of BA from farming and bioenergy industries end up in landfills every year. Both situations are bad for the environment. This study ...