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060 Discrete element modelling of compressive strength testing of no-fines concrete
Zoltán Gyurkó
* 1 ,
Rita Nemes PhD.
2
1  PhD student at Department of Construction Materials and Technologies, Faculty of Civil Engineering, Budapest University of Technology and Economics, Budapest, Hungary
2  Associate Professor at Department of Construction Materials and Technologies, Faculty of Civil Engineering, Budapest University of Technology and Economics, Budapest, Hungary
Published: 02 August 2018 by MDPI in The Eighteenth International Conference of Experimental Mechanics session ICEM 2018
https://doi.org/10.3390/ICEM18-05470
Abstract:

Discrete Element modelling of concrete requires the precise calibration of model parameters that is a long lasting and computationally expensive task in case of complex models. Present study introduces a method for estimating a model parameter (normal strength of parallel bonds) for concretes with different particle size distribution and aggregate type. The parameter estimation leads to an optimization problem based on physical measurement data. In the present paper, a model and its parameters are proposed to estimate normal strength of parallel bonds based on the density and compressive strength of concrete.

Keywords: no-fines concrete; lightweight aggregate; compressive strength test; Discrete Element Modelling; parameter optimization
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