（1）本文制备了由巴氏芽孢杆菌和胶质芽孢杆菌组成的二元微生物混凝土裂缝自修复材料；巴氏芽孢杆菌和胶质芽孢杆菌的最佳混合比例为6∶4，此时细菌浓度最高，沉淀量最大，对砂浆试件表面裂缝的修复率最高，达80.525%。
（2）采用本文制备的自修复材料修复裂缝时，巴氏芽孢杆菌会分解尿素并产生CO₃^2-，而胶质芽孢杆菌会在富氧（浅裂缝）和少氧（深裂缝）环境中加速CO2的溶解，生成CO₃^2-。胶质芽孢杆菌在矿化过程中的参与促进了CaCO₃沉淀的生成，并为利用微生物矿化沉积技术修复深层裂缝提供了有益参考。

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