A Review on Mechanical Properties and Morphological Properties of Concrete with Graphene Oxide

Abstract

This paper contains a comprehensive review carried out on the literature of performance of cementitious composites of Graphene oxide (GO) and cement. During the past decay, various types of Nanomaterials introduced to the cement to achieve the durability and higher strength. For the substantial improvement of the construction industry are using Silica fume as a mineral admixture. This gives very high and ultra-high strength concrete. Even though cement–silica composite has high performance, intrinsic brittleness nature of cement is a limitation for some application which can overcome by using nanomaterials. There are few common nanomaterials which, are used for concrete Nano silica, nano titanium, carbon nanotube (CNT), carbon fiber and graphene. As a composite material, chemically oxidized graphene which is graphene oxide is extensively used in favour of its bulk production and good dispersion properties. Graphene could combine into the cement paste or mortar and strengthen the bonds of the cement hydrates. As a result, the essential properties of cement and especially its tensile and compressive strength could be improved. The Graphene Oxide and Ordinary Portland Cement (OPC) composite are normally produced by dispersing GO sheets in water. For this purpose, did not use surfactant, dispersant or stabilizing agents. The compositions produced by adding GO at the time of mixing the cementitious materials, course and fine aggregates and water. Research works show that very low quantity of GO is needed to improve flexural strength of an OPC matrix. It also improves the ductility and reduces the risk of catastrophic damage due to the extreme loads. The addition of GO improves the pore structure of concrete and decrease the total porosity.