Fracture properties of cementitious composites reinforced with carbon nanofibers/nanotubes

Abstract eng:
The main objective of this work is to determine the mechanical properties of a new cementitious nano-composite material. Carbon nanotubes/nanofibers were synthesized directly on the particle surfaces (Portland cement, fly ash, sand). Mixing these carbon-modified particles with ordinary Portland cement creates a cementitious binder, where the carbon nanofibers are perfectly dispersed in the volume. Previous attempts to create nano-reinforced composite materials suffered from flocculation and improper dispersion of admixed nanofibers. Now, the hybrid material can be intermixed directly with water creating strong and brittle composite.

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