TY - JOUR
T1 - The optimization of aggregate blends for sustainable low cement concrete
AU - Moini, Mohamadreza
AU - Flores-Vivian, Ismael
AU - Amirjanov, Adil
AU - Sobolev, Konstantin
N1 - Funding Information:
The authors thank the Wisconsin Department of Transportation (WisDOT) for funding this project through WHRP Grant 0092-13-04. The contents of this report reflect the views of the authors who are responsible for the facts and accuracy of the data presented herein. The contents do not necessarily reflect the official views of the WisDOT. Support from the RGI at University of Wisconsin-Milwaukee is acknowledged. The authors also thank Lafarge, Handy Chemicals and Zignego Readymix for donation of materials.
Publisher Copyright:
© 2015 Published by Elsevier Ltd.
PY - 2015/6/26
Y1 - 2015/6/26
N2 - The volume of aggregates in concrete is approximately 60-75%, and so the concrete performance is strongly affected by the aggregate's properties, proportioning and packing. Optimized aggregate blends can provide concrete with improved performance and can be used to design concrete at lower cementitious material content. Due to complexities in aggregate packing, and irregularities in shape and texture, there is no universal approach to account for the contribution of aggregate's particle size distributions and packing degree affecting the performance of concrete in fresh and hardened states. This paper attempts to develop the best aggregate blends and investigates the effect of aggregate packing on concrete performance through multiple criteria based on simulation and experiments. It was demonstrated that the aggregate packing can be used as a tool to optimize concrete mixtures and improve compressive strength. The correlation between the grading, packing of aggregates and concrete performance is developed. The grading techniques based on power curves and coarseness chart provide valuable information on expected performance and, therefore, can be effectively used to optimize the concrete mixtures.
AB - The volume of aggregates in concrete is approximately 60-75%, and so the concrete performance is strongly affected by the aggregate's properties, proportioning and packing. Optimized aggregate blends can provide concrete with improved performance and can be used to design concrete at lower cementitious material content. Due to complexities in aggregate packing, and irregularities in shape and texture, there is no universal approach to account for the contribution of aggregate's particle size distributions and packing degree affecting the performance of concrete in fresh and hardened states. This paper attempts to develop the best aggregate blends and investigates the effect of aggregate packing on concrete performance through multiple criteria based on simulation and experiments. It was demonstrated that the aggregate packing can be used as a tool to optimize concrete mixtures and improve compressive strength. The correlation between the grading, packing of aggregates and concrete performance is developed. The grading techniques based on power curves and coarseness chart provide valuable information on expected performance and, therefore, can be effectively used to optimize the concrete mixtures.
KW - Aggregate optimization
KW - Coarseness chart
KW - Compressive strength
KW - Concrete mixture
KW - Grading
KW - Packing
KW - Particle size distribution
KW - Power curves
KW - Simulation
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U2 - 10.1016/j.conbuildmat.2015.06.019
DO - 10.1016/j.conbuildmat.2015.06.019
M3 - Article
AN - SCOPUS:84932600925
SN - 0950-0618
VL - 93
SP - 627
EP - 634
JO - Construction and Building Materials
JF - Construction and Building Materials
ER -