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Title: Evaluating Hydration of the Cement Mortar Blended With Calcinated Clay Using Piezoelectric Based Sensing Technique
Authors: Aggarwal, Divya
Supervisor: Goyal, Shweta
Keywords: calcinated clay;piezometer;hydration;PZT sensors;embedded PZT sensors
Issue Date: 11-Sep-2019
Abstract: Concrete is widely used in modern day construction as it can be moulded to the variety of shapes and finishes. Mostly, it performs well throughout its service life of the structure. When it comes in contact with water then it starts gaining strength. In this study, Calcinated Clay is utilized at different percentage level such as 0%, 4%, 6%, 8%, 10% and 12% as a partial replacement of cement. The aim of this study is to investigate the gain in Compressive Strength of cement-based material with Calcinated Clay by utilizing Piezoelectric-based sensor Electromechanical Impedance Technique. An embedded Piezoelectric-based sensor is used for monitoring the early age as well as long term hydration of binder paste. Change in Conductance indicates progressive changes of hydration in cement-based mortar. The experimental results on mortar mix with 6% replacement of cement has shown maximum compressive strength as compared to other mixes and similar trends of results have been captured by EMI Technique. On the formulated binder paste, setting time and flow value are also determined. Delay in setting time and approximately linearly decrease in flow value has been recognized with increasing the percentage of Calcinated Clay. To compare the EMI spectra, statistics metric such as Root Mean Square Deviation (RMSD) has been used for various percentage of cement paste.
Appears in Collections:Masters Theses@CED

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