Publications

Experimental analysis of salt diffusion in compacted clays by Through Diffusion and Half-Cell technique

Published in Indian Geotechnical Conference, 2016

The estimation of the model parameters namely effective diffusion coefficient and retardation factor of a potential landfill liner material was presented in this paper using the experimentally measured salt concentration data. Experimental data of concentration variation of time and spatial distance in compacted bentonite were obtained using two diffusion measurement techniques viz., through diffusion and half-cell technique respectively. The bentonite was subjected to the same concentration gradient and compacted density in both the experimental methods to compare the results and understand underlying mechanism in the diffusion tests. The measured data from the laboratory diffusion techniques were analysed using a GUI (Graphical User Interface) based Dot-net application CONTRADIS. The CONTRADIS was used to estimate the model parameters by the inverse analysis. The application uses the solution of the forward analysis and stochastic algorithm for the inverse analysis. The retardation factor obtained theoretically was validated using laboratory batch sorption Tests. Read more

Recommended citation: Partha Das, Man Parvesh SR and Bharat TV, “Experimental analysis of salt diffusion in compacted clays by Through Diffusion and Half-Cell technique” , Indian Geotechnical Conference IGC 2016 (15-17 December 2016, IIT Madras, Chennai, India) https://manparvesh.com/files/003-igc-iit-madras.pdf

Salt Diffusion in Compacted Plastic Clay: Experimental and Theoretical Evaluation

Published in International Conference on Soil and Environment, 2016

In this paper, experimental results of diffusion transport of salt through compacted, saturated bentonite clay was presented. Two different diffusion techniques namely, through- diffusion and half-cell method were used to obtain diffusion and retention characteristics of the bentonite specimen which has a potential application as a liner material in engineered landfills and backfill material in high-level nuclear waste repository. The experiments were carried out on duplicate specimens subjected to the same initial compacted density and concentration gradient to understand the underlying mechanism of both the experimental techniques. A graphical user interface (GUI) based on Dot-Net application, CONTRADIS, was utilized to estimate the model parameters by inverse analysis on the experimental data. The GUI utilizes the analytical solutions for analyzing the data obtained from through- diffusion and half-cell technique. The design model parameters obtained from the two techniques were analyzed and compared with the batch sorption experiments. Read more

Recommended citation: Partha Das, Man Parvesh SR and Bharat TV, “Salt Diffusion in Compacted Plastic Clay: Experimental and Theoretical Evaluation” , International Conference on Soil and Environment (22-23 July, 2016) https://manparvesh.com/files/002-igs-bangalore.pdf

Development of an Android application for Geotechnical engineers

Published in NES-GeoCongress on advancements in Geotechnical engineering, 2014

With the advancement in technology, many people believe that there must be some involvement of latest technology like the Android platform in our day-to-day practices. Many engineering applications are being developed using this platform. This paper presents the development of Android Application for soil classification system. A simple Android application, that uses input experimental values like percentage passing through different sieves (sieve no. 4, 10, 40 and 200), D 10 , D 30 , D 60 , Liquid Limit and Plastic limit, has been developed. Read more

Recommended citation: Man Parvesh SR and A. Murali Krishna, “Development of an Android application for Geotechnical engineers” , NES-GeoCongress on advancements in Geotechnical engineering (18 October, 2014) https://manparvesh.com/files/001-android-geotech.pdf