TY - JOUR A1 - Kugler, Felix A1 - Fehn, Thomas A1 - Sandner, Maximilian A1 - Krcmar, Wolfgang A1 - Teipel, Ulrich T1 - Microstructural and mechanical properties of geopolymers based on brick scrap and fly ash JF - International Journal of Ceramic Engineering & Science N2 - In the present work, the influence of increasing brick scrap additions on the setting behavior and material properties of fly ash‐based geopolymers is investigated. The geopolymers produced are tested for their compressive strengths, bulk densities, and thermal conductivities, among other properties. Both the starting materials and the produced geopolymers are also investigated by infrared spectroscopy, X‐ray diffraction analysis, and scanning electron microscopy to show the relationship between the solidification behavior and the resulting material properties. The investigations show that brick scrap is very suitable as a matrix material for geopolymer production. Increasing brick scrap additions lead, among other things, to a reduction in bulk density, thermal conductivity and compressive strength. KW - geopolymers KW - mechanical properties KW - microstructure KW - waste disposal Y1 - 2022 U6 - https://doi.org/10.1002/ces2.10120 SN - 2578-3270 VL - 4 IS - 2 SP - 92 EP - 101 PB - Wiley ER -