Figure 7: XRD patterns of mortars (E: ettringite, M: monosulphoaluminate, Y: Ye’eliminate, and A: anhydrite). (a) Samples cured at − 10 ° C, − 5 ° C, 0 ° C, 5 ° C, and 20 ° C for 3d. (b) Samples cured at 0 ° C for 1d, 3 d, and 7d.