A binary concrete crack self-healing system containing oxygen-releasing tablet and bacteria and its Ca2+-precipitation performance

@article{Zhang2016ABC,
  title={A binary concrete crack self-healing system containing oxygen-releasing tablet and bacteria and its Ca2+-precipitation performance},
  author={Ji Liang Zhang and Chun Guo Wang and Qun Wang and Ji Feng and Weiyan Pan and Xiao Chuan Zheng and Bin Liu and Ning Xu Han and Feng Xing and Xu Deng},
  journal={Applied Microbiology and Biotechnology},
  year={2016},
  volume={100},
  pages={10295-10306}
}
A strategy to supply molecular oxygen for microbial calcium precipitation was developed for the first time. Firstly, a controlled oxygen-releasing tablet (ORT) containing CaO2 and lactic acid with a suitable ratio of 9:1 was developed. It can provide a stable oxygen supply and maintain pH in the range of 9.5–11.0 for 45 days while contacting with water. In the presence of oxygen, a self-healing bacterium H4 spores germinated more effectively and maintained high metabolic activity. Furthermore… CONTINUE READING