The concretes described in this chapter have demonstrated that the strength, ductility, and performance
of concretes and cement-based composites have and will continue to achieve higher plateaus. A new era
in construction materials technology has commenced that promises to have a revolutionary impact on
constructed systems in the 21st century. Considerable work must be done to enhance the practicability
of these materials and make them cost effective. It is only with simplicity and practicability in application
and the achievement of a cost-effective competitive end product that these developments in the science
of materials technology can gain universal acceptance and large-scale application.