The present study investigated the hydration properties of ordinary portland cement (OPC) and calcium sulfoaluminate (CSA) cement blends with the biological admixtures to examine the feasibility of the blends as a carrier for microbes, Sporosarcina pasteurii. The hydration kinetics of the blends were explored by X-ray powder diffractometry, thermogravimetry, and ²⁷Al nuclear magnetic resonance analysis. The test outcomes revealed that the blended CSA cement expedited the early hydration of OPC clinker, which was delayed by the biological admixtures in the sole OPC system. In particular, blending with the CSA cement improved rapid strength development, lowered pH, and increased the crack healing capacity. Furthermore, the hydration of the systems was thermodynamically modeled to provide the fundamental idea of the systems and to compare with experimental phase assemblages. The hydration kinetics and development of physical and chemical properties of the blends were simulated and discussed along with the experimental data.

本研究研究了普通波特兰水泥（OPC）和硫铝酸钙（CSA）水泥与生物外加剂混合物的水化特性，以检验混合物作为微生物巴氏孢子八菌载体的可行性。通过 X 射线粉末衍射、热重分析和²⁷ Al 核磁共振分析探讨了共混物的水合动力学。测试结果表明，混合 CSA 水泥加速了 OPC 熟料的早期水化，而单一 OPC 系统中的生物掺合料则延迟了这一过程。特别是，与 CSA 水泥混合可提高快速强度发展、降低 pH 值并提高裂纹愈合能力。此外，对系统的水合进行了热力学建模，以提供系统的基本思想并与实验相组合进行比较。模拟并讨论了共混物的水合动力学和物理化学性质的发展以及实验数据。