Description of field of research

Geopolymers are low-carbon and alkali-activated binders, similar to cement, used in concrete. The primary raw materials for geopolymer are fly ash and/or slag precursors, which are activated using highly alkaline sodium silicate and/or other activators. Geopolymers are gaining popularity due to their eco-friendly nature and high durability. However, the inclusion of recycled waste in geopolymer can make it even more sustainable. For instance, waste glass can replace the conventional precursors of geopolymer. Thus, this research aims to investigate the properties of geopolymer made with recycled waste glass powder as a substitute for fly ash. Many different waste glasses will be used at different replacement levels and field trials. Two different industrial partners are collaborating with us in this project. Some field trials and field concrete casting were done previously. Collaborating with industrial partners could offer a chance for conducting fieldwork in the future, potentially yielding practical applications and valuable insights for this research. 

Research Area

Concrete | Alkali activated binder | Geopolymer | Waste recycling

Students must work in the laboratory

Sometimes in field trials with industry partners (optional)


  1. To find the optimum amount of waste glass to replace fly ash in geopolymer. 
  2. To investigate the impact of different glass powders (of optimum amount) on geopolymer properties.  

Scope/related works: 

  1. Making/casting samples, recycling/grinding glass powders 
  2. Density, compressive strength (7 days to 28 days measurement)
  3. Investigation of the properties and analysis