Iron-rich sulfoaluminate cementitious material

Cold-resistant

Prepared from industrial byproducts, it incorporates Fe₂O₃ to promote crystal transformation, sustaining hydration at low and even negative temperatures while reducing harmful pores compared to ordinary Portland cement.

Wang, Xujiang · De-Qiang, Sun · Li, Jingwei · Wang, Wenlong · Yanpeng, Mao · Zhanlong, Song

Cement and Concrete Research 2023

Advantages

Ettringite content at 0–5 °C approaches that at 20 °C

Hydration continues at negative temperatures

Reduced harmful pore proportion