Usage of Digital Image Correlation (DIC) in Determination of Modulus of Elasticity and Poisson's Ratio of Special Concrete

Abstract

This paper deals with an evaluation of long-term experimental work carried out in cooperation with concrete suppliers and with the company (named Sobriety). The key part of this work is focused on experimental determination of secant modulus of elasticity and Poisson's Ratio of special concrete (self-compacting concrete, steel fibre reinforced concrete, polymer fibre reinforced concrete, specific high-strength concrete). Two different real-time approaches were used to detect modulus of elasticity. In parallel, both approaches - the (European) standard approach and the Digital Image Correlation - DIC (2D DIC; 3D DIC with varying lengths in the vertical direction) - were applied.