Effect of Stone Dust on the Mechanical and Microstructural Properties of Opc Based Concrete Subjected To Acid Exposure
Bikram Paul1, Khokan Karmakar2, Kushal Ghosh3, Partha Ghosh4

1Bikram Paul, Department of Civil Engineering, Calcutta Institute of Technology, Kolkata, India.
2Khokan Karmakar, PWD, Kolkata, India.
3Dr. Kushal Ghosh, Department of Civil Engineering, NIT Sikkim, Ravangla, India.
4Dr. Partha Ghosh, Department of Construction Engineering, Jadavpur University, Kolkata, India. 

Manuscript received on 02 August 2019. | Revised Manuscript received on 07 August 2019. | Manuscript published on 30 September 2019. | PP: 7488-7492 | Volume-8 Issue-3 September 2019 | Retrieval Number: C4801098319/19©BEIESP | DOI: 10.35940/ijrte.C4801.098319
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: A separate approach of sustainable development is to make the structures durable. More durable structures need to be replaced less frequently and will reduce the need for cement. Such increase in durability can be achieved by choosing appropriate mix designs and selecting suitable aggregates and admixtures. In this experiment sand (fine aggregate) is partially replaced by stone dust to make the concrete mix sustainable in nature. This study also investigates the durability of different types of concrete in acid exposure. Cube compressive strengths of different mixes have been compared to see how the concrete strength differs from original mixes. In addition different types of non-destructive tests such as ultrasonic pulse velocity test, rebound hammer test and half-cell potential tests have also been performed on the concrete samples for better analysis of their strength and durability characteristics. Specimens were analysed through the Scanning Electron Microscope to understand the microstructural changes of concrete samples. Energy dispersion X-ray analysis was also done to understand the changes in the nature of the hydration products of some specimen.
Keywords: EDX, SEM, Acid Exposure, UPV and Half Cell.

Scope of the Article:
Mechanical Design