The Experimental Investigation of RCC Beam for Analyzing Crack Variation by DIC Method

Abstract

The purpose of this study is to investigate the mode of crack propagation in reinforced concrete using Digital Image Correlation (DIC-MAT LAB). DIC is a robust, non-contact and precise tool for fracture measurements. Digital images are taken at different loading stages and by comparing the images it is possible to infer the deformation of an object subjected to external loads. In this paper, the relationship between the fracture properties and the properties of the concrete is investigated experimentally. Tests were performed on small-scale reinforced concrete specimens in three point bending. By means of the DIC technique the visualization and quantification of the fracture properties of reinforced concrete could be determined. The DIC technique was found to be an effective mean to measure the crack opening displacements.