Effect of addition of Multiwalled Carbon nanotube (CNT) on Sorptivity, water absorption and impact energy of Self Compacting Concrete (SCC)

Parth Shah
Student, Department of civil engineering, Marwadi Education Foundation, Rajkot, Gujarat , IN

Dr.Siddharth G.Shah
Student, Department of civil engineering, Marwadi Education Foundation, Rajkot, Gujarat , IN

Keywords: Self Compacting Concrete (SCC), Carbon Nanotube (CNT), Durability of concrete, Water absorption, Sorptivity, Impact test.

Abstract

Self compacting concrete (SCC) is a versatile concrete which doesn’t required any vibration or tamping compaction and has great ability to flow and reach the farthest corner or within congested reinforcement while casting an RCC member like beam, column and slab. Recent technological advancement in nano materials as well as increasing popularity of SCC has urged the researchers to study the use of nano materials in concrete. Carbon nanotube imparts massive changes in material’s strengths and durability. In this paper an attempt is made to investigate the effect of addition of carbon nanotube (CNT) in Self Compacting concrete such as durability. To achieve this, CNT dosage from 0 to 0.75% by weight of cement in the increment of 0.25% are incorporated and fresh as well as hardened concrete test derived from above is tested. For durability aspect water permeability, Sorptivity and impact resistance are performed and analyze. The results revealed that SCC derived with 0.75% CNT by weight of cement shows significant improvement on its durability in terms of reduction in water absorption, less capillary action in Sorptivity and reduced impact energy absorbed as compared to normal SCC.

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