PMID- 36988847
OWN - NLM
STAT- MEDLINE
DCOM- 20231229
LR  - 20240106
IS  - 1559-0291 (Electronic)
IS  - 0273-2289 (Linking)
VI  - 195
IP  - 12
DP  - 2023 Dec
TI  - Accelerated Reinforcement of Calcareous sand via Biomineralization with Aluminum 
      Ion Flocculant.
PG  - 7197-7213
LID - 10.1007/s12010-023-04429-6 [doi]
AB  - Microbially induced calcium carbonate precipitation (MICP) is an immensely 
      growing technique that utilizes the metabolic pathways of bacteria to form 
      calcite precipitation throughout the soil matrix, leading to improve geotechnical 
      engineering properties. However, the excessive number of treatments limited the 
      application of MICP for strengthening calcareous sand. To reduce the number of 
      treatments and develop efficiencies, this paper investigates the optimized 
      treatment protocol of adding aluminum ion flocculants to the cementing solution 
      to accelerate the curing rate of the MICP and its effect. The results show that 
      adding a certain concentration of AlCl(3) to the cementing solution can resulted 
      in a rapid increase in strength of the calcareous sand column. When 0.02 M 
      aluminum chloride was added to the cementing solution, the unconfined compressive 
      strength of the sand column reached 827 kPa after three treatments, and it 
      reached 2 MPa after five treatments, while the control group needed to be treated 
      10 and 15 times, respectively, to reach equivalent strengths. In this paper, the 
      unconfined compressive strength of the sand column formed using the proposed 
      method was 27-40 times that of the control group at the same calcium carbonate 
      content. The presented experimental approach can be used as a tool to design the 
      treatment protocol for the engineering application of MICP-reinforced calcareous 
      sand in practice.
CI  - (c) 2023. The Author(s), under exclusive licence to Springer Science+Business 
      Media, LLC, part of Springer Nature.
FAU - Wei, Renjie
AU  - Wei R
AD  - College of Civil and Transportation Engineering, Hohai University, Nanjing, 
      Jiangsu, China.
FAU - Peng, Jie
AU  - Peng J
AD  - College of Civil and Transportation Engineering, Hohai University, Nanjing, 
      Jiangsu, China. peng-jie@hhu.edu.cn.
FAU - Li, Liangliang
AU  - Li L
AD  - College of Civil and Transportation Engineering, Hohai University, Nanjing, 
      Jiangsu, China.
FAU - Jiang, Zhao
AU  - Jiang Z
AD  - College of Civil and Transportation Engineering, Hohai University, Nanjing, 
      Jiangsu, China.
FAU - Tang, Jiahui
AU  - Tang J
AD  - College of Civil and Transportation Engineering, Hohai University, Nanjing, 
      Jiangsu, China.
LA  - eng
GR  - 51578214/National Natural Science Foundation of China/
GR  - 2021QD07/Transformation Program of Scientific and Technological Achievements of 
      Jiangsu Province/
PT  - Journal Article
DEP - 20230329
PL  - United States
TA  - Appl Biochem Biotechnol
JT  - Applied biochemistry and biotechnology
JID - 8208561
RN  - 0 (Sand)
RN  - CPD4NFA903 (Aluminum)
RN  - 0 (Soil)
RN  - H0G9379FGK (Calcium Carbonate)
SB  - IM
MH  - *Sand
MH  - *Aluminum
MH  - Biomineralization
MH  - Soil
MH  - Calcium Carbonate/metabolism
OTO - NOTNLM
OT  - Aluminum ion flocculant
OT  - Calcareous sand
OT  - MICP
OT  - Rapid reinforcement
OT  - Unconfined compressive strength
EDAT- 2023/03/30 06:00
MHDA- 2023/12/29 06:42
CRDT- 2023/03/29 11:21
PHST- 2023/03/15 00:00 [accepted]
PHST- 2023/12/29 06:42 [medline]
PHST- 2023/03/30 06:00 [pubmed]
PHST- 2023/03/29 11:21 [entrez]
AID - 10.1007/s12010-023-04429-6 [pii]
AID - 10.1007/s12010-023-04429-6 [doi]
PST - ppublish
SO  - Appl Biochem Biotechnol. 2023 Dec;195(12):7197-7213. doi: 
      10.1007/s12010-023-04429-6. Epub 2023 Mar 29.