Description du projet
Renforcer les connaissances sur les nouvelles alternatives durables au ciment et au béton conventionnels
Le ciment est un agent liant et adhésif important pour le béton, un matériau qui revêt une importance fondamentale pour le secteur de la construction. Alors que la valeur du marché mondial du ciment devrait atteindre environ 682 milliards de dollars en 2025, les nouveaux liants géopolymères, une alternative durable au ciment Portland standard de l’industrie, sont sur le point d’augmenter leur part de marché. Les propriétés thermiques et mécaniques détaillées du béton géopolymère à des températures élevées sont toutefois mal caractérisées. Le projet TemGPC, financé par l’UE, les étudiera en ayant recours à des méthodes expérimentales et à des modélisations informatiques. L’équipe espère mieux comprendre les effets de la température et des contraintes sur les nouveaux bétons, afin de mieux contrôler leurs propriétés et d’améliorer les performances de leurs composants.
Objectif
Concrete is a non-uniform, multi-phase porous material. With the increase in temperature, the chemical configuration of the material changes, and the mortar and coarse aggregate, owing to their different thermal expansions, will produce different thermal stresses, thereby reducing their bonding strength. The thermal and mechanical behaviours of geopolymer concrete that uses geopolymer to replace traditional Portland cement, are different from those of Portland cement concrete in many ways. In order to enable the widespread and safe use of geopolymer concrete in construction industry where fire safety is extremely important, this project will carry out a systematic study on the thermal and mechanical behaviours of geopolymer concrete at elevated temperatures. The study includes the effect of temperature on the thermal and mechanical properties of geopolymer concrete and the combined effect of the initial stress and temperature on the constitutive relation of geopolymer concrete at various different temperatures. The research methodology includes the use of advanced experimental testing techniques and multi-physics and multi-phases computer modelling, and the development of theoretical models based on the results obtained from both the experimental and numerical studies. The research will create new knowledge and improve our understanding on the temperature effect on concrete behaviour and performance. The work will help maintain EU excellence in concrete research. The outcome of the project can also lead to the development of new types of concrete with targeted performance. This project covers a wide range of disciplines including materials, chemistry, physics, engineering, and computer science. Through the project the individual fellowship will significantly improve his interdisciplinary knowledge and innovative research skills as well as his career development.
Champ scientifique
Programme(s)
Régime de financement
MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)Coordinateur
PL4 8AA Plymouth
Royaume-Uni