New Geopolymers Based on Electric Arc Furnace Slag
Electric arc furnace slag (EAF-S), coming from a steel productive plant in Italy, has been used as new source for geopolymers synthesis. The slag has been geopolymerized alone and with different content of metakaolin (MK) with the aim to investigate if EAF-S content plays a role in geopolymerization process. Mechanical properties results and microstructure analysis highlight that the optimum weight ratio MK/EAF-S to be used as starting materials is 40/60, 30/70, 20/80. Moreover EAF-S, when used with MK, directly participates in the formation of calcium-rich alumino-silicate gels.
Pietro VINCENZINI and Cristina LEONELLI
M. C. Bignozzi et al., "New Geopolymers Based on Electric Arc Furnace Slag", Advances in Science and Technology, Vol. 69, pp. 117-122, 2010