Analysis of deformation states in high performance fibre reinforced concrete bent plates

Abstract

The article presents the results of bending tests on reinforced concrete made of high strength concrete with water/cement ratio of 0.2 with addition steel and polypropylene fibres obtained with the non-contact three-dimensional displacement measuring system – ARAMIS. The plates were reinforced with mesh and the variable was the content of fibres in concrete. The results of strains and vertical displacements for characteristic sections in plates P1-P3 were analysed. Examples of the relationship major strains and vertical displacement along section length for P1 were presented. The experiments proved signifi cant influence structural reinforcement combinations on load capacity of plates. The use of polypropylene fibres is effective and increases the performance of the deformed steel fibres in concrete. The cracks in reinforced concrete plates with fibres were much smaller width across than the cracks in the plate reinforced with the reinforcing mesh.