Cement-based materials are the most used artificial materials in
the world, and more than 2.5 tons of cement-based materials are
consumed per person yearly [1,2]. This is mainly attributed to
many favorable features of cement-based materials: low price, reliable
mechanical properties and high versatility [1]. Calcium sulfoaluminate
(CSA) cement is one kind of promising high-performance
materials as it exhibits a high resistance to free-thaw, rapid
strength gain and excellent durability in a range of aggressive environment
[3], and thus widely used in bridges, concrete pipes,
waterproof layers and other concrete elements [3]. Besides, CSA
cement-based materials reveal low pH value, low porosity and