Gültekin, AdilRamyar, Kambiz2023-07-262023-07-2620230950-06181879-0526https://doi.org/10.1016/j.conbuildmat.2022.130059https://hdl.handle.net/20.500.12684/13581In this study, high-temperature resistances of oven- and microwave-cured pumice-, perlite-, fly ash- and burnt clay-based geopolymer were investigated and, the results were compared with that of the cement mortars. The effect of high-temperature on the matrix microstructure was investigated by SEM and changes in the crystal structure were monitored by XRD analyses. High-temperature experiments were carried out with 3 h exposure to 450, 600, 750 and 900 degrees C. The results indicated that both oven- and microwave-cured geopolymer mortars are more resistant to high-temperatures at all temperatures than their portland cement counterpart. However, it was also determined that pumice- and perlite-based mortars could not maintain their volumetric stability at elevated temperatures.en10.1016/j.conbuildmat.2022.130059info:eu-repo/semantics/closedAccessGeopolymer; Microwave Curing; High -Temperature; Pumice; PerliteAsh-Based Geopolymer; Strength; ConcreteArticle3652-s2.0-85144539556WOS:000909228600001Q1Q1