Field notes
Questions raised by the research.
Three themes discussed by the authors in the library.
How does the material vary?
Carmignano and colleagues describe differences in iron-tailings composition and particle properties associated with ore and processing routes.
What remains beyond the laboratory?
Norouzpour and colleagues identify energy demand, reagent recovery and process integration as barriers to scaling the activation methods in their carbonation review.
Which assumptions affect the comparison?
Golev and colleagues’ ore-sand assessment assumes that substitution does not alter product performance or service life. They discuss how transport and allocation choices change the environmental comparison.