Abstract— This study aimed to synthesis low temperature cement: Calcium Sulfoaluminate-Belite (CŜAB) using indus-trial waste as starting material viz., fly ash, bottom ash, and FGD-gypsum together with calcined clay. Commercial grade of Ca(OH)2 and Al(OH)3 are also used as corrective materials. The synthesis method was hydrothermal-calcination. The designed cement phases were calculated basing on Bogue equation. This study varied proportion of starting materials in order to obtain high level of ye’elimite phase and followed the strength development of the synthe-sized product. The main phases after synthesis were ye’elimite and anhydrite. Belite was also formed as a minor-ity. CŜAB was mixed with 20wt% of FGD-gypsum and 0.6 of water to solid ratio to study its hydration. The compres-sive strength was 22.9 MPa at 7 days.
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