Carbon-Coated-Glass-Fibre-Reinforced Cement Composites: I, Fibre Pushout And Interfacial Properties

Interfacial mechanical properties of carbon-coated-S-glass-fibre-reinforced cement were characterized by a fibre pushout technique. The pushout experiments were conducted on model composites, where the S-glass monofilaments with and without carbon coating were unidirectionally embedded in ordinary Portland cement. Interfacial properties, including bonding strength, frictional stress, residual stress, and fracture energy, were extracted from the previously developed progressive debonding model. The composite with a carbon interface exhibited a weaker interfacial bonding strength and frictional stress than did the composite without a carbon interface.