Strength and deformation behavior in steel fibre reinforced normal concrete by optical (ESPI) methods

Abstract

Structural application of Steel Fibre Reinforced Concrete (SFRC) requires in-depth evaluation of its strength and performance. Influence of steel fibre on concrete material properties and deformation is better understood under full field measurements by optical method. This study therefore clarifies the material characteristics and deformations of SFRC based on Electronic Speckle Pattern Interferometry (ESPI) and conventional methods. SFRC was found to be superior in shear, tensile and deformation capacity, with no improvement in compressive strength. ESPI yielded more detailed and better results.