caa a22 4500 463223861 CHVBK 20180405153220.0 cr unu---uuuuu 170326e20070501xx s 000 0 eng 10.1007/s10853-006-0561-2 doi (NATIONALLICENCE)springer-10.1007/s10853-006-0561-2 Erosion of geopolymers made from industrial waste [Elektronische Daten] [K. Goretta, F. Gutierrez-Mora, D. Singh, J. Routbort, G. Lukey, J. van Deventer] Solid-particle erosion studies were conducted on geopolymers derived from various combinations of granulated blast-furnace slag, flyash, sand, clay, and rock. The erodent particles were 390-μm angular Al2O3, which impacted at 30, 60, or 90° at a velocity of 50, 70, or 100m/s. Steady-state erosion rates were obtained as weight of target lost per weight of impacting particles. Material-loss mechanisms were studied by scanning electron microscopy (SEM). All of the geopolymers responded to normal impact as conventional brittle solids, but impact at 30° led to anomalously rapid erosion, probably because of presence of microcracks and consequent enhanced removal of aggregates within the geopolymers. Erosion rates at 90° impact were proportional to erodent velocity to the 2.3-2.7 power. The geopolymers exhibited crushing strengths of approximately 32-57MPa. Erosion rate correlated with density and strength for geopolymers of similar composition. All of the geopolymers that contained flyash were more resistant to erosion than was the geopolymer without flyash. Springer Science+Business Media, LLC, 2007 Goretta K. Argonne National Laboratory, 60439-4838, Argonne, IL, USA aut Gutierrez-Mora F. Argonne National Laboratory, 60439-4838, Argonne, IL, USA aut Singh D. Argonne National Laboratory, 60439-4838, Argonne, IL, USA aut Routbort J. Argonne National Laboratory, 60439-4838, Argonne, IL, USA aut Lukey G. Department of Chemical Engineering, The University of Melbourne, 3010, Melbourne, Victoria, Australia aut van Deventer J. Department of Chemical Engineering, The University of Melbourne, 3010, Melbourne, Victoria, Australia aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/9(2007-05-01), 3066-3072 0022-2461 42:9<3066 2007 42 10853 https://doi.org/10.1007/s10853-006-0561-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-0561-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Goretta K. Argonne National Laboratory, 60439-4838, Argonne, IL, USA aut NATIONALLICENCE 700 1- Gutierrez-Mora F. Argonne National Laboratory, 60439-4838, Argonne, IL, USA aut NATIONALLICENCE 700 1- Singh D. Argonne National Laboratory, 60439-4838, Argonne, IL, USA aut NATIONALLICENCE 700 1- Routbort J. Argonne National Laboratory, 60439-4838, Argonne, IL, USA aut NATIONALLICENCE 700 1- Lukey G. Department of Chemical Engineering, The University of Melbourne, 3010, Melbourne, Victoria, Australia aut NATIONALLICENCE 700 1- van Deventer J. Department of Chemical Engineering, The University of Melbourne, 3010, Melbourne, Victoria, Australia aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/9(2007-05-01), 3066-3072 0022-2461 42:9<3066 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer