Experimental investigation on the study of mechanical properties and modelling analysis of hybrid composite cement beams reinforced with mulit-walled carbon nano tubes and glass fibres

摘要

This project investigates the behaviour of reinforced cement composite beams with multi-walled carbon nanotubes and glass fibres. The percentage of glass fibres was fixed at 0.25% of cement, while the percentage of multi-walled carbon nanotubes was fixed at 0.75% of Cement. Dispersion of both multi-walled carbon nanotubes and glass fibres was carried out using ultrasonic energy method. They are taken out from curing after 28 days respectively. They are allowed to dry in air, later the specimens are taken to carry out tests. The composite beams were tested under flexure and compression in order to evaluate their mechanical properties such as flexural strength, toughness and ductility. These results are compared with the results of plain cement control beams and cubes. The modelling and analysis were carried out using FEM software. The results obtained from the modelling are saved for reference. From the study it is concluded that the load carrying capacity of composite beams under three-point loading is substantially higher than for plain controlled beams.