Application of reinforced three-phase-foams in UHPC foam concrete

The combination of UHPC approach and implementation of three-phase-foams showed significant improvement of especially mechanical properties. Additionally, nanotubes were used to further improve performance of resulting foam concretes due to nanoreinforcement and their nucleation abilities. Before implementation of inorganic foams in the mortar, surface properties of used surfactant and nanomaterials as well as their influence on hydration products were investigated in a model system. Differences in their impact on hydration products and interactions among themselves were observed. Finally, reinforced three-phase-foams were successfully integrated and mainly focused mechanical properties improved. Results of the phase development, microstructure and mechanical properties of UHPC foam concretes are illustrated and discussed.