PMID- 37440115
OWN - NLM
STAT- MEDLINE
DCOM- 20240423
LR  - 20240424
IS  - 1559-0291 (Electronic)
IS  - 0273-2289 (Linking)
VI  - 196
IP  - 4
DP  - 2024 Apr
TI  - Biomineralization Process of CaCO(3) Precipitation Induced by Bacillus 
      mucilaginous and Its Potential Application in Microbial Self-healing Concrete.
PG  - 1896-1920
LID - 10.1007/s12010-023-04634-3 [doi]
AB  - Microbial induced calcium carbonate precipitation (MICP) is widely common in 
      nature, which belongs to biomineralization and has been explored carefully in 
      recent decades. The paper studied the effect of temperature, initial pH value and 
      Ca(2+) concentration on bacterial growth and carbonic anhydrase activity, and 
      then revealed the biomineralization process through the changes of Ca(2+) 
      concentration and calcification rate in alkali environment. Meanwhile, microbial 
      healing agent containing spores and calcium nitrate was prepared and used for the 
      early age concrete cracks repair. The self-healing efficiency was assessed by 
      crack closure rate and water permeability repair rate. The experimental results 
      showed that when the optimal temperature was 30  degrees C, the pH was 8.0-11.0, and the 
      optimal Ca(2+) concentration was 0-90 mM, the bacteria could grow better and the 
      carbonic anhydrase activity was higher. Compared with reference, the crack 
      closure rate with the crack width up to 0.339 mm could reach 95.62% and the water 
      permeability repair rate was 87.54% after 28 d healing time of dry-wet cycles. 
      XRD analysis showed that the precipitates at the crack mouth were calcite 
      CaCO(3). Meanwhile, the self-healing mechanism of mortar cracks was discussed in 
      detail. In particular, there is no other pollution in the whole mineralization 
      process, and the self-healing system is environmentally friendly, which provides 
      a novel idea and method for the application of microbial self-healing concrete.
CI  - (c) 2023. The Author(s), under exclusive licence to Springer Science+Business 
      Media, LLC, part of Springer Nature.
FAU - Li, Zhenfang
AU  - Li Z
AD  - Shandong Hi-Speed Urban & Rural Development Group CO., LTD, Shang Dong, Jinan, 
      250014, China.
FAU - Liu, Aizhu
AU  - Liu A
AD  - Shandong Hi-Speed Urban & Rural Development Group CO., LTD, Shang Dong, Jinan, 
      250014, China.
FAU - Sun, Chunhui
AU  - Sun C
AD  - Shandong Hi-Speed Urban & Rural Development Group CO., LTD, Shang Dong, Jinan, 
      250014, China.
FAU - Li, Haitao
AU  - Li H
AD  - Shandong Hi-Speed Urban & Rural Development Group CO., LTD, Shang Dong, Jinan, 
      250014, China.
FAU - Kong, Zheng
AU  - Kong Z
AD  - Shandong Hi-Speed Urban & Rural Development Group CO., LTD, Shang Dong, Jinan, 
      250014, China.
FAU - Zhai, Haoran
AU  - Zhai H
AD  - Shandong Hi-Speed Urban & Rural Development Group CO., LTD, Shang Dong, Jinan, 
      250014, China. haoranzhai2022@163.com.
LA  - eng
PT  - Journal Article
DEP - 20230713
PL  - United States
TA  - Appl Biochem Biotechnol
JT  - Applied biochemistry and biotechnology
JID - 8208561
RN  - H0G9379FGK (Calcium Carbonate)
SB  - IM
MH  - *Calcium Carbonate/chemistry/metabolism
MH  - *Biomineralization
MH  - *Bacillus/metabolism
MH  - *Construction Materials/microbiology
MH  - Chemical Precipitation
MH  - Hydrogen-Ion Concentration
MH  - Temperature
OTO - NOTNLM
OT  - Calcification rate
OT  - Carbonic anhydrase
OT  - Microbial healing agent
OT  - Microbial induced calcium carbonate precipitation
OT  - Self-healing concrete
EDAT- 2023/07/13 12:31
MHDA- 2024/04/23 15:49
CRDT- 2023/07/13 11:16
PHST- 2023/07/01 00:00 [accepted]
PHST- 2024/04/23 15:49 [medline]
PHST- 2023/07/13 12:31 [pubmed]
PHST- 2023/07/13 11:16 [entrez]
AID - 10.1007/s12010-023-04634-3 [pii]
AID - 10.1007/s12010-023-04634-3 [doi]
PST - ppublish
SO  - Appl Biochem Biotechnol. 2024 Apr;196(4):1896-1920. doi: 
      10.1007/s12010-023-04634-3. Epub 2023 Jul 13.