International Journal of Engineering Research in Electronics and Communication Engineering

Behavior of High Performance Fiber Reinforced Concrete Using Carbon Nano Tubes

Author : Showkath Ali Khan ¹ Zai Dr. P. S. Nagaraja ² Dr. Shashishankar. A ³

Date of Publication :7th August 2016

Abstract: High performance concrete (HPC) is a specialized concrete designed to provide several benefits in the construction of concrete structures. The use of fibres in concrete has gained enormous popularity in the last decade. Studies have shown increasing evidence that the brittle behavior of HPC can be overcome by the addition of short steel fibres of small diameter in the concrete mix. The present study aims to investigate the integration of Carbon Nano tubes ( CNTs )and steel fibers with HPC of a designed mix of M60 grade of concrete. The influence of the cementations material dosage, nano material, cement/ultra-fine ratio, percentage of fibers, and the mixing procedures on the mechanical properties of nano based carbon concrete was studied by preparing several concrete mixes. CNTs specifically designed for use with concrete composites as admixture. Six different concentrations such as 0.025%, 0.050%, 0.075%, 0.1%, 0.125% and 0.15% of CNTs by weight of cement were used. Carbon Nano tubes were first dispersed in water and surfactant using an ultrasonic mixer as per state-of-the-art techniques and then combined with fibre reinforced high performance concrete. The various mechanical properties like Compressive, Flexural and Split tensile strength can be improved with the addition of low concentrations of CNT in high performance fiber reinforced concrete.

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