Investigation of performances of some empirical and composite models for predicting the modulus of elasticity of high strength concretes incorporating ground pumice and silica fume

Abstract

In recent times, the importance of constructing different models to predict the elastic properties of concrete have become common. The objective of this study is to investigate the performances of some empirical and composite material models to predict the modulus of elasticity of high strength concrete (HSC) with ground pumice (GP) and silica fume (SF). The experimental compressive strengths and unit weights of these high strength concretes, are used in the calculations of the modulus of elasticity of concretes by common empirical models. Then, modulus of elasticity of same HSCs are also predicted using some common composite material models. Finally, all model predictions are compared to the experimental modulus of elasticity of high strength concretes. The performances of all models are discussed. Consequently, both empirical and composite material models can be employed to predict the modulus of elasticity for GP and SF concretes, using the assumptions in this study. (C) 2016 Elsevier Ltd. All rights reserved.