The dust collected from the smokestack of a coal-fired plant
Lightly roasted fine-grained clay used as cement
Certain volcanic soils much used by the ancients
Or "rice husk ash" - the ground remains of burnt rice hulls
A by-product of silicon and ferrosilicon alloy production
Or more fully, "Ground, granulated blast furnace slag", a by-product of steel production
Tagged in concrete
Alain Bilodeau and V Mohan Malhotra, submitted to the 2001 First International Conference on Ecological Building Structure, Ecological Building Network
Tagged in concrete, rice husk
M. Anwar, T. Miyagawa, M. Gaweesh; The First International Conference on Ecological Building Structure, 2001, The Ecological Building Network
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