Material characterisation and structural performance of alkali-activated materials for resisting harsh environments

The alkali-activated material is a modern, durable and environmentally friendly alternative to the ordinary Portland cement. However, challenges such as the complexity in the mix designs, susceptibility to leaching of pore fluids into air and water, and uncertainty of its structural performance have prevented its widespread use. This thesis aims to address these challenges through a series of experimental and theoretical investigations. Several methods were shown to improve its predictability and increase the leaching resistance. The behaviour of the structural members reinforced by the novel glass fibre-reinforced polymer bars could also be well predicted using current design methods.