International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 11 Issue: 06 | Jun 2024
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p-ISSN: 2395-0072
AN EXPERIMENTAL STUDY ON INFLUENCE OF GRAPHENE OXIDE ON STRENGTH OF CEMENT- FLY ASH MORTAR Deepika KC1, Hajira Nigar C2 1Assistant professor Department of civil engineering, BIT College, Bangalore, Karnataka 2Mtech Student Department of civil engineering, BIT College, Bangalore, Karnataka
---------------------------------------------------------------------***--------------------------------------------------------------------addition of suitable nano particles into concrete to alter Abstract - Nanotechnology, a multidisciplinary science many properties of concrete. As a part of project this section outlines the findings of few important works related to Graphene Oxide and its incorporation in cement phase.
focusing on enhancing material properties at the atomic level, holds immense potential to overcome limitations in various scientific domains. While extensively utilized in material science and electronics, its application in civil engineering, particularly in improving concrete, remains relatively understudied. Concrete, a fundamental material in civil engineering, faces challenges in resisting tensile stresses due to inherent weaknesses in cement components. To address this issue, research explores leveraging nanoscale materials with unique properties, including enhanced tensile and flexural strength.
A great number of researches have been performed to Understand the nature of nanomaterials and their effect on the properties of concrete. A comparative analysis of this work has been presented in the summary of this chapter which will highlight the significance of each work. Out of the numerous works done in the field only a few relevant works have been highlighted in the next section.
This study investigates the efficacy of graphene oxide (GO), a nanomaterial, in enhancing the strength of mortar against tension and bending stresses. GO offers advantages such as effective dispersion in water, facilitating its incorporation into cement matrices without forming agglomerates. By utilizing GO water dispersion as mix water, the cement components can be imbued with graphene oxide throughout the structure.
1.1 LITERATURE SUMMARY From the work carried by the researchers on incorporation of nana materials into the cement mortar and concrete it can be concluded that different nana materials can be incorporated to improve the performance and strength properties of cement mortar and concrete. Few investigations were carried out on performance of mortar incorporating graphene oxide. Extensive research is needed to explore the possibility of incorporation of Graphene Oxide and study the performance and behavior of mortar and concrete.
The research objective entails an extensive literature review on the impact of nanomaterials on cement mortar, focusing on the effect of graphene oxide on cement and fly ash mortar. Experimental findings demonstrate significant improvements in mortar strength performance with the incorporation of graphene oxide.
1.2 OBJECTIVES
Key Words: Nanotechnology, Graphene oxide, Cement mortar, Tensile strength, Flexural strength, Material science, Civil engineering
1. To explore how varying concentrations of graphene oxide impact the compressive strength, flexural strength, and tensile strength of concrete.
1.INTRODUCTION
2. To assess the characteristics of cement-fly ash mortar with and without graphene oxide. Incorporating partial cement replacement with fly ash and complete sand replacement with M-sand in concrete is preferred due to advantages like improved workability, reduced cement usage, and decreased permeability.
Nano material modification of cement-based material is an active area of research at present. Still, when compared to other engineering field, concrete technology has been slow to catch the emerging enhancements through nano technology. This is mainly due to the lack of basic understanding of concrete at nano level and the risk factors involved in dispersion of nano materials uniformly in the cement matrix.
2. METHODOLOGY 2.1 Procurement of Materials Cement, sand, fly ash, and graphene oxide are procured from reliable sources. Basic tests are conducted on cement and sand to ensure quality:
However, the recent developments of the experimental techniques available have facilitated to study the concrete at micro and nano levels. Many researches work suggest
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