STRESS STRAIN BEHAVIOUR OF ULTRA HIGH PERFORMANCE CONCRETE UNDER UNIAXIAL COMPRESSION

Ultra High Performance Concrete (UHPC), which is a type of improved high strength concrete, is a recent development in concrete technology. The stress-strain behaviour of UHPC under compression is of considerable interest in the design of UHPC members because the material is intrinsically strong in compression, and accurate prediction of their structural behaviour. An attempt has been made in the present study to determine the complete stress-strain curves from uniaxial compression tests and to develop stress-strain models representing this behaviour.