TY - JOUR
T1 - Use of Coarse Recycled Concrete Aggregate in Ternary Blended Portland Cement Concrete
AU - Wagner, Seth
AU - Wickizer, Gabrielle
AU - Cleary, Douglas
AU - Lomboy, Gilson R.
AU - Kennedy, Danielle
AU - Watts, Benjamin
AU - Bly, Peter
N1 - Publisher Copyright:
© National Academy of Sciences: Transportation Research Board 2020.
PY - 2020
Y1 - 2020
N2 - The purposes of this study were to (a) investigate concrete pavement mixtures with recycled concrete aggregates using ternary blended cementitious binders, (b) measure the fresh and hardened properties of the concrete mixtures, and (c) assess the durability of concrete implementing the use of recycled coarse aggregates with ternary binders. Mixtures had recycled concrete aggregates at varying replacement rates. The binders were combinations of Portland cement, Class C and F fly ashes, and ground granulated blast furnace slag. At 50% replacement of virgin aggregates, some specimens showed comparable mechanical performance to the control mix. Performance is heavily tied to quality of recycled aggregates. The combined use of fly ash and blast furnace slag showed improvements in results for drying shrinkage, freeze–thaw durability, resistivity, and alkali–silica reaction mitigation.
AB - The purposes of this study were to (a) investigate concrete pavement mixtures with recycled concrete aggregates using ternary blended cementitious binders, (b) measure the fresh and hardened properties of the concrete mixtures, and (c) assess the durability of concrete implementing the use of recycled coarse aggregates with ternary binders. Mixtures had recycled concrete aggregates at varying replacement rates. The binders were combinations of Portland cement, Class C and F fly ashes, and ground granulated blast furnace slag. At 50% replacement of virgin aggregates, some specimens showed comparable mechanical performance to the control mix. Performance is heavily tied to quality of recycled aggregates. The combined use of fly ash and blast furnace slag showed improvements in results for drying shrinkage, freeze–thaw durability, resistivity, and alkali–silica reaction mitigation.
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U2 - 10.1177/0361198120935876
DO - 10.1177/0361198120935876
M3 - Article
AN - SCOPUS:85102881133
SN - 0361-1981
VL - 2674
SP - 705
EP - 714
JO - Transportation Research Record
JF - Transportation Research Record
IS - 10
ER -