TY - JOUR
T1 - The fate of iron in blast furnace slag particles during alkali-activation
AU - Bernal, S.A.
AU - Rose, V.
AU - Provis, J. L.
PY - 2014/7/15
Y1 - 2014/7/15
N2 - Synchrotron nanoprobe X-ray fluorescence maps show for the first time discrete iron-rich, titanium-rich and manganese/silicon-rich particles present in blast furnace slag grains, and these particles remain intact when the slag is used as a precursor for alkali-activated slag (AAS) binders. These particles appear to be entrained during slag production, and remain stable under the reducing conditions prevailing during alkali-activation. There is no evidence of chemical interaction between these particles and the AAS binder, which mainly comprises calcium silicate hydrates. These results are important for the understanding of iron chemistry in AAS, and the potential reactivity of metallic and other redox-sensitive species within AAS binders.
AB - Synchrotron nanoprobe X-ray fluorescence maps show for the first time discrete iron-rich, titanium-rich and manganese/silicon-rich particles present in blast furnace slag grains, and these particles remain intact when the slag is used as a precursor for alkali-activated slag (AAS) binders. These particles appear to be entrained during slag production, and remain stable under the reducing conditions prevailing during alkali-activation. There is no evidence of chemical interaction between these particles and the AAS binder, which mainly comprises calcium silicate hydrates. These results are important for the understanding of iron chemistry in AAS, and the potential reactivity of metallic and other redox-sensitive species within AAS binders.
UR - http://www.scopus.com/inward/record.url?eid=2-s2.0-84899447235&partnerID=MN8TOARS
U2 - 10.1016/j.matchemphys.2014.03.017
DO - 10.1016/j.matchemphys.2014.03.017
M3 - Article
SN - 0254-0584
VL - 146
SP - 1
EP - 5
JO - Materials Chemistry and Physics
JF - Materials Chemistry and Physics
IS - 1-2
ER -