Ground Improvement of Soft Soils by Deep Soil Mixing Using Industrial By-Products

In this project the potential for utilising fly ash and slag in ground improvement projects was investigated. In such projects, typically large amounts of high carbon-footprint binders, such as cement and lime are used. Fly ash and slag are industrial by-products of coal combustion and steel manufacturing, respectively. These industrial wastes were used to develop novel geopolymeric binders for usage in deep soil mixing technique. This project has extended the application of waste materials as high value-added materials to replace traditional binders in the construction industry. Low-carbon geopolymers were found to be suitable alternative binders for future sustainable infrastructure projects.