TY - GEN
T1 - Sustainable Application of Quarry Byproducts Mixed with Large Size Unconventional Aggregates for Improved Performance
AU - Qamhia, Issam
AU - Kazmee, Hasan
AU - Tutumluer, Erol
AU - Ozer, Hasan
N1 - Funding Information:
Acknowledgments. The support for this study was provided by the Illinois Department of Transportation as part of the recent ICT R27-168 research project. The authors would like to acknowledge the members of IDOT Technical Review Panel (TRP) and especially Sheila Bes-hears as the TRP Chair for their useful advice at different stages of this research. The authors also acknowledge support from the Illinois aggregate producers for donating the aggregate materials. Special thanks go to Illinois Center for Transportation (ICT) research engineer James Meister as well as Marc Killion and the staff in the machine shop of the Newmark Civil Engineering Laboratory at the University of Illinois. Many thanks for John Hart and Dr. Maziar Moaveni for characterizing aggregate shape properties and the undergraduate student Lucas Chae for his help with conducting the laboratory tests. The contents of this paper reflect the views of the authors who are responsible for the facts and the accuracy of the data presented herein. This paper does not constitute a standard, specification, or regulation.
Publisher Copyright:
© 2018, Springer International Publishing AG.
PY - 2018
Y1 - 2018
N2 - With recent focus on sustainable construction practices and the ever-increasing transportation costs and scarcity of natural resources, integration of large-size unconventional and marginally acceptable aggregates, such as quarry by-products (QB), and making their routine use in construction specifications is becoming imperative. In this study, the stability of large-size aggregates is increased by adding QB as sand- and smaller-sized particles to fill up the voids. Adding QBs is expected to increase density and provide stability for better aggregate interlock, and therefore, to increase the subgrade strength and eventually improve the road’s rutting performance. In order to determine the appropriate weight mix ratio of the large-size aggregates and the fine QB materials, a steel box with dimensions 610 mm by 610 mm by 533 mm was built to assess the packing of the two materials. One of the sides of the box was designed to have a transparent Plexiglas that enabled observation of the QB percolation into the voids of the large-sized aggregates, which were added in multiple lifts. The QB materials were then evenly spread on the surface of each lift and compacted with a laboratory-sized roller compactor. Different mix ratios, support conditions, and moisture contents of the QBs were investigated. The study concluded that 25% QB by the dry weight of the large aggregates is an appropriate amount to be used for both one- and two-lift construction practices of this composite weak subgrade replacement aggregate material, i.e., aggregate subgrade, in the field. The laboratory results will be implemented in the field by constructing test sections for unpaved construction platform and asphalt-paved low volume road applications and monitoring them for rutting performance using an accelerated pavement testing device.
AB - With recent focus on sustainable construction practices and the ever-increasing transportation costs and scarcity of natural resources, integration of large-size unconventional and marginally acceptable aggregates, such as quarry by-products (QB), and making their routine use in construction specifications is becoming imperative. In this study, the stability of large-size aggregates is increased by adding QB as sand- and smaller-sized particles to fill up the voids. Adding QBs is expected to increase density and provide stability for better aggregate interlock, and therefore, to increase the subgrade strength and eventually improve the road’s rutting performance. In order to determine the appropriate weight mix ratio of the large-size aggregates and the fine QB materials, a steel box with dimensions 610 mm by 610 mm by 533 mm was built to assess the packing of the two materials. One of the sides of the box was designed to have a transparent Plexiglas that enabled observation of the QB percolation into the voids of the large-sized aggregates, which were added in multiple lifts. The QB materials were then evenly spread on the surface of each lift and compacted with a laboratory-sized roller compactor. Different mix ratios, support conditions, and moisture contents of the QBs were investigated. The study concluded that 25% QB by the dry weight of the large aggregates is an appropriate amount to be used for both one- and two-lift construction practices of this composite weak subgrade replacement aggregate material, i.e., aggregate subgrade, in the field. The laboratory results will be implemented in the field by constructing test sections for unpaved construction platform and asphalt-paved low volume road applications and monitoring them for rutting performance using an accelerated pavement testing device.
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U2 - 10.1007/978-3-319-61633-9_17
DO - 10.1007/978-3-319-61633-9_17
M3 - Conference contribution
AN - SCOPUS:85102117033
SN - 9783319616322
T3 - Sustainable Civil Infrastructures
SP - 262
EP - 273
BT - Materials for Sustainable Infrastructure - Proceedings of the 1st GeoMEast International Congress and Exhibition, Egypt 2017 on Sustainable Civil Infrastructures
A2 - Struble, Leslie
A2 - Tebaldi, Gabriele
PB - Springer Science and Business Media B.V.
T2 - 1st GeoMEast International Congress and Exhibition on Sustainable Civil Infrastructures, Egypt 2017
Y2 - 15 July 2017 through 19 July 2017
ER -