Concrete structures are prone to develop cracks and cause devastation. Repair and renovation are not enough to ensure complete eradication of crack development. The entire process is costly and laborious. The microbiologically induced calcium carbonated precipitation can be effective in restoring the cracks. The calcium-based nutrients along with specific bacterial strain have been used in the present investigation. The pellets of calcium as per Fourier transform infrared spectroscopy and energy-dispersive X-ray spectroscopy are deposited in the cracks of the concrete over a period of 7 days of incubation. The presence of bacteria in the calcium precipitates as demonstrated by scanning electron microscope provides adequate strength and adhering quality to the pellets. The effective filling of cracks is confirmed with the help ultrasonic pulse velocity test also. Since, elephantine heritage and high sky buildings have high maintenance costs, the use of present technique will cut down the cost and duration of restoration.

混凝土结构容易产生裂缝并造成破坏。修复和翻新不足以确保完全消除裂缝发展。整个过程既费钱又费力。微生物诱导的碳酸钙沉淀可有效修复裂缝。本研究中使用了基于钙的营养素以及特定的细菌菌株。根据傅里叶变换红外光谱和能量色散 X 射线光谱，钙颗粒在 7 天的孵化期内沉积在混凝土的裂缝中。如扫描电子显微镜所证明的，钙沉淀物中细菌的存在为颗粒提供了足够的强度和粘附质量。借助超声波脉冲速度测试也证实了裂缝的有效填充。由于大象遗产和高空建筑物的维护成本很高，使用现有技术将减少修复的成本和持续时间。