Experimental and Numerical Investigation of Fire-Induced Concrete Spalling Under Biaxial Stresses
Confirmation seminar presented by Souvik Saha
Fire induced concrete spalling is a serious concern when using concrete as a fire resisting material, even more so in the case of High Strength Concrete used for tunnel linings due to their dense microstructure that increases the spalling risk. Spalling can be very dangerous not only due to its abrupt and violent nature but can also damage infrastructure severely leading to collapse without any pre-warning. While a lot of research is done to understand the factors and the underlying mechanisms leading to spalling, the combined effect(s) of thermo-mechanical conditions are not yet fully understood.
This study aims to develop new methods of monitoring, predicting and preventing dangerous failures in concrete surfaces under stress conditions in underground tunnels. Both experimental and numerical studies have been proposed to be conducted on small-scale tunnel models under elevated temperatures. The outcomes will increase the understanding of the spalling phenomenon and help to formulate new guidelines for design.
Online only - Zoom link https://uqz.zoom.us/j/86774639168
About Confirmation Seminars
The purpose of the confirmation milestone is to ensure that the candidate receives appropriate feedback in relation to the viability and progress of the thesis project and that the resources required to complete the program of research within the recommended timeframe are available. It is also an opportunity to ensure that the candidate has demonstrated the capacity and capability to successfully complete the thesis in a timely manner.
