1. “Gheorghe Asachi” Technical University of Iasi, Faculty of Materials Science and Engineering, Blvd. Mangeron, No. 51, 700050, Iasi, Romania
2. Universiti Malaysia Perlis (UniMAP), Centre of Excellence Geopolymer and Green Technology (CEGeoGTech), 01000 Perlis, Malaysia
3. Czestochowa University of Technology, Faculty of Production Engineering and Materials Technology, Department of Physics, 42-200 Częstochowa, Poland