Cement-based materials with graphene nanophase

P. T. Dalla; I. K. Tragazikis; D. A. Exarchos; K. Dassios; T. E. Matikas

doi:10.1117/12.2260124

19 April 2017 Cement-based materials with graphene nanophase

P. T. Dalla, I. K. Tragazikis, D. A. Exarchos, K. Dassios, T. E. Matikas

Proceedings Volume 10171, Smart Materials and Nondestructive Evaluation for Energy Systems 2017; 101710W (2017) https://doi.org/10.1117/12.2260124
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2017, Portland, Oregon, United States

Abstract

Cement matrix composites with a conductive nano-reinforcement phase, lead to the development of innovative products. A matrix with carbon based nano-inclusions (graphene, carbon nanotubes, carbon nanofibers, carbon black) obtains multi-functional properties like enhanced mechanical, electrical, elastic and thermal properties and, therefore, the advantage of self-sensing in case of an inner defect. This research aims to characterize the nano-modified cement mortars with different concentrations of graphene nanophase. The results will be compared with data obtained from nanomaterials containing multi-walled carbon nanotubes. Comprehensive characteristics of these cement-based nanocomposites have been determined using destructive and nondestructive laboratory techniques. Flexural and compressive strength were measured. During four point bending tests, acoustic emission monitoring allowed for realtime identification of the damage process in the material. The electrical surface resistivity of graphene-reinforced cement mortars was measured by applying a known DC voltage, and compared to the electrical resistivity of nano-modified mortars with carbon nanotubes.

Citation Download Citation

P. T. Dalla, I. K. Tragazikis, D. A. Exarchos, K. Dassios, and T. E. Matikas "Cement-based materials with graphene nanophase", Proc. SPIE 10171, Smart Materials and Nondestructive Evaluation for Energy Systems 2017, 101710W (19 April 2017); https://doi.org/10.1117/12.2260124

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