Fragkoulis Kanavaris

School of Planning Architecture and Civil Engineering
David Keir Building, Stranmillis Rd., BT9 5AG
Room OG.312 A
fkanavaris01@gmail.com    

 

Education

Civil & Structural Engineering, MEng (Hons)

PhD Title

Crack-inducing thermal stresses, strength and temperature development in safety critical concrete structures

PhD project Description

Bridges, dams, nuclear plants and tunnels are considered as safety-critical concrete structures as a potential failure of one of these structures would have tremendous consequences for the environment and well-being of a community. Therefore, it is crucial to be able to predict both the short and long term behaviour and thus, the service life of these structures. However, the fact that the already complex behaviour of concrete is also greatly affected by weather conditions makes this problem more difficult and challenging. The larger the concrete mass the higher the temperature development in it from the chemical reaction between cement and water. Excessive temperatures in concrete generate the so called “thermal stresses” due to expansion which may result in cracking if adequate strength has not being achieved. On the same time, the rate of strength development of a concrete element is greatly affected by temperature, where higher temperatures accelerate the strength development. Therefore, being able to control and predict the temperature and strength in these structures is of great importance for increasing their service life and mitigating any potential failures. This project aims to achieve the aforementioned by investigating the addition of cement replacement materials in concrete and implementation of numerical techniques.

Supervisors

Prof. Marios Soutsos, Prof. Jian-Fei Chen & Dr. Sreejith Nanukuttan

Research Interests

Supplementary cementitious materials, strength, temperature and heat evolution in mass concrete, non-destructive testing, early age thermal stresses in concrete, mechanical and thermal properties of concrete, FE modelling.