TY - JOUR
T1 - A comparative study of self-consolidating concretes incorporating high-volume natural pozzolan or high-volume fly ash
AU - Celik, Kemal
AU - Meral, Cagla
AU - Mancio, Mauricio
AU - Mehta, P. Kumar
AU - Monteiro, Paulo J.M.
N1 - Publisher Copyright:
© 2013 Elsevier Ltd. All rights reserved.
PY - 2014
Y1 - 2014
N2 - The purpose of this study is to compare the effects of Portland cement replacement on the strength and durability of self-consolidating concretes (SSC). The two replacement materials used are high-volume natural pozzolan (HVNP), a Saudi Arabian aluminum-silica rich basaltic glass and high-volume Class-F fly ash (HVFAF), from Jim Bridger Power Plant, Wyoming, US. As an extension of the study, limestone filler (LF) is also used to replace Portland cement, alongside HVNP or HVFAF, forming ternary blends. Along with compressive strength tests, non-steady state chloride migration and gas permeability tests were performed, as durability indicators, on SCC specimens. The results were compared to two reference concretes; 100% ordinary Portland cement (OPC) and 85% OPC - 15% LF by mass. The HVNP and HVFAF concrete mixes showed strength and durability results comparable to those of the reference concretes; identifying that both can effectively be used to produce low-cost and environmental friendly SCC.
AB - The purpose of this study is to compare the effects of Portland cement replacement on the strength and durability of self-consolidating concretes (SSC). The two replacement materials used are high-volume natural pozzolan (HVNP), a Saudi Arabian aluminum-silica rich basaltic glass and high-volume Class-F fly ash (HVFAF), from Jim Bridger Power Plant, Wyoming, US. As an extension of the study, limestone filler (LF) is also used to replace Portland cement, alongside HVNP or HVFAF, forming ternary blends. Along with compressive strength tests, non-steady state chloride migration and gas permeability tests were performed, as durability indicators, on SCC specimens. The results were compared to two reference concretes; 100% ordinary Portland cement (OPC) and 85% OPC - 15% LF by mass. The HVNP and HVFAF concrete mixes showed strength and durability results comparable to those of the reference concretes; identifying that both can effectively be used to produce low-cost and environmental friendly SCC.
KW - Durability
KW - High volume fly ash
KW - High volume natural pozzolan
KW - Limestone
KW - Ternary blend
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U2 - 10.1016/j.conbuildmat.2013.11.065
DO - 10.1016/j.conbuildmat.2013.11.065
M3 - Article
AN - SCOPUS:85028261766
SN - 0950-0618
VL - 67
SP - 14
EP - 19
JO - Construction and Building Materials
JF - Construction and Building Materials
ER -