Coupled Effects of Confining Pressure and Loading Rate on the Mechanical Behavior of Plastic Concrete
Publication: Journal of Materials in Civil Engineering
Volume 32, Issue 10
Abstract
Plastic concrete is used widely in the construction of cut-off walls. These structures might be exposed to coupled effects of dynamic load along with confining pressure. Therefore, careful study of the impacts of these combined stress conditions is one of the primary issues to be considered in analysis and design. Although there is a large number of experiments on the mechanical properties of plastic concrete in static loading and triaxial condition, none have studied the behavior of this material in dynamic state loading. Therefore, a series of unconfined and triaxial compression tests has been carried out under different confining pressures and strain rates to experimentally investigate the behavior of this material under combined stress conditions. The test results indicate that increasing the loading rate in the triaxial tests causes enhancement of the strength and friction angle of plastic concrete. This phenomenon is more evident in higher confining pressures.
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Data Availability Statement
Some or all data that support the findings of this study are available from the corresponding author upon reasonable request. These data include
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Triaxial loading test results containing stress and strain measurements; and
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Some pictures from sample preparation and tested samples after loading.
Acknowledgments
This work was performed within the project “Effects of Blasting Waves on Deep Cut-Off Walls,” which in turn is financially sponsored by Tarbiat Modares University (Grant No. 94-60522003). The experimental tests were conducted at the geotechnical laboratory of Tarbiat Modares University with help from Mr. Farhad Sheykhani. We would like to express our sincere gratitude to these organizations for the support provided.
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Published In
Journal of Materials in Civil Engineering
Volume 32 • Issue 10 • October 2020
Copyright
© 2020 American Society of Civil Engineers.
History
Received: Oct 25, 2019
Accepted: Mar 2, 2020
Published online: Jul 28, 2020
Published in print: Oct 1, 2020
Discussion open until: Dec 28, 2020
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