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Materials 2016, 9(9), 780; doi:10.3390/ma9090780

Deformation Behavior of Recycled Concrete Aggregate during Cyclic and Dynamic Loading Laboratory Tests

1
Water Centre—Laboratory, Faculty of Civil- and Environmental Engineering, Warsaw University of Life Sciences-SGGW, Warsaw 02-787, Poland
2
Department of Geotechnical Engineering, Faculty of Civil- and Environmental Engineering, Warsaw University of Life Sciences-SGGW, Warsaw 02-787, Poland
*
Author to whom correspondence should be addressed.
Academic Editors: Yehia M. Haddad, Liangchi Zhang and David P. Thambiratnam
Received: 29 July 2016 / Revised: 6 September 2016 / Accepted: 8 September 2016 / Published: 20 September 2016
View Full-Text   |   Download PDF [5470 KB, uploaded 22 September 2016]   |  

Abstract

Recycled concrete aggregate (RCA) is a relatively new construction material, whose applications can replace natural aggregates. To do so, extensive studies on its mechanical behavior and deformation characteristics are still necessary. RCA is currently used as a subbase material in the construction of roads, which are subject to high settlements due to traffic loading. The deformation characteristics of RCA must, therefore, be established to find the possible fatigue and damage behavior for this new material. In this article, a series of triaxial cyclic loading and resonant column tests is used to characterize fatigue in RCA as a function of applied deviator stress after long-term cyclic loading. A description of the shakedown phenomenon occurring in the RCA and calculations of its resilient modulus (Mr) as a function of fatigue are also presented. Test result analysis with the stress-life method on the Wohler S-N diagram shows the RCA behavior in accordance with the Basquin law. View Full-Text
Keywords: recycled concrete aggregate; cyclic loading; plastic strain; fatigue; resilient modulus recycled concrete aggregate; cyclic loading; plastic strain; fatigue; resilient modulus
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Sas, W.; Głuchowski, A.; Gabryś, K.; Soból, E.; Szymański, A. Deformation Behavior of Recycled Concrete Aggregate during Cyclic and Dynamic Loading Laboratory Tests. Materials 2016, 9, 780.

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