Specimen size effects on the mechanical behaviors and failure patterns of the mine tailings-based geopolymer under uniaxial compression

Mine tailings (MTs) with rich aluminosilicates can be successfully used in the production of geopolymer via alkaline activation; and MTs, through geopolymerization are being used as an alternative in pavement and building construction materials, including concrete and bricks. Besides the factors such as the Si:Al ratio, Si/Al: NaOH ratio, and solid/liquid ratio that influence the compressive strength of the geopolymer, the specimen size also...