This edition by results of the conference CONSEC16 contain high quality peer-reviewed scientific papers related to the main topics as: hydration and early age concrete properties, new design concepts and methods for long-term performance, performance of concrete under severe environment and loads, robustness with respect to loading hazards and sustainability of concrete structures, new and special concrete for (ultra-) severe conditions, repair and strengthening of under-performing structures and newly developed techniques for research and analyze. This edition will be useful for scientists and engineers from area materials and structures for construction.