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Volume 5, Issue 6 (Suppl)
J Mat. Sci.
ISSN: 2321-6212
Advanced Materials 2017
October 26-28, 2017
OCTOBER 26-28, 2017 OSAKA, JAPAN
13
TH
INTERNATIONAL CONFERENCE ON
Advanced Materials and Nanotechnology
Characteristics of concrete with graphene and carbon fibers for marine environment
S Geetha and M Selvakumar
Rajalakshmi Engineering College, India
A
ddition of small discrete micro and macro fibers in controlling the growth of cracks in concrete is a wide practice in recent
decades. Use of discrete fibers result in more uniform stress distribution in concrete and this delay the nucleation and the
growth of micro/nano crack. Steel fibers, carbon fibers, glass and polymeric fibers are used to control the cracks at microscopic
level, whereas nanofibers/particles such as nanosilica, nanoalumina, nanoiron oxide, nanotitanium oxide, nanoclay and
grapheme oxide are used to control the cracks at nanoscopic level. Chopped carbon fibers are added in concrete to increase the
flexural toughness of concrete. As marine concrete is prone to severe durability issues, this paper aims at characterizing high
performance concrete with graphene and chopped carbon fibers which can be used for the construction of coastal structures.
Design of experiments with central composite design has been adopted to design the trial mixes for this work. The experiments
were carried with the designed values. The strength properties like compressive strength, flexural strength and tensile strength
were studied. Apart from this, durability characteristics like concrete impermeability and rapid chloride penetration was also
carried out. It was observed that the strength properties increased by 22% for 0.05% of graphene oxide and incorporation of
chopped carbon fibers up to 0.05% improved the flexural toughness by 28%. The concrete was found to be resistant to chloride
penetration and it was impermeable to water. Results show that this material can be potentially used as construction material
for structures that are exposed to severe marine environment.
geetha.s@rajalakshmi.edu.inJ Mat. Sci. 2017, 5:6
DOI: 10.4172/2321-6212-C1-009