Format

Send to

Choose Destination
Materials (Basel). 2016 Sep 20;9(9). pii: E780. doi: 10.3390/ma9090780.

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

Author information

1
Water Centre-Laboratory, Faculty of Civil- and Environmental Engineering, Warsaw University of Life Sciences-SGGW, Warsaw 02-787, Poland. wojciech_sas@sggw.pl.
2
Water Centre-Laboratory, Faculty of Civil- and Environmental Engineering, Warsaw University of Life Sciences-SGGW, Warsaw 02-787, Poland. andrzej_gluchowski@sggw.pl.
3
Water Centre-Laboratory, Faculty of Civil- and Environmental Engineering, Warsaw University of Life Sciences-SGGW, Warsaw 02-787, Poland. katarzyna_gabrys@sggw.pl.
4
Department of Geotechnical Engineering, Faculty of Civil- and Environmental Engineering, Warsaw University of Life Sciences-SGGW, Warsaw 02-787, Poland. emil_sobol@sggw.pl.
5
Department of Geotechnical Engineering, Faculty of Civil- and Environmental Engineering, Warsaw University of Life Sciences-SGGW, Warsaw 02-787, Poland. alojzy_szymanski@sggw.pl.

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.

KEYWORDS:

cyclic loading; fatigue; plastic strain; recycled concrete aggregate; resilient modulus

Supplemental Content

Full text links

Icon for Multidisciplinary Digital Publishing Institute (MDPI) Icon for PubMed Central
Loading ...
Support Center