The aim of this paper is to describe the trend of increasing strength of high performance concrete under increasing levels of confinement pressure. High performance concrete can be described as a cementitious composite material with high compressive strength, low water-binder ratio, high silica-fume and cement content and with no presence of aggregate larger than 4 mm. This material posesses superior properties such as self-consolidating workability, high compressive and tensile strength, increased ductility and low permeability.