Biochemical process of ureolysis-based microbial CaCO3 precipitation and its application in self-healing concrete

J Xu, X Wang, B Wang - Applied microbiology and biotechnology, 2018 - Springer
Urea hydrolysis has already been considered as the most effective pathway for microbially
induced CaCO 3 precipitation (MICP). The present work first studied the combination of …

A correlation study on optimum conditions of microbial precipitation and prerequisites for self-healing concrete

J Xu, Y Tang, X Wang - Process biochemistry, 2020 - Elsevier
Microbial induced CaCO 3 precipitation (MICP) based upon enzymatic urea hydrolysis has
been verified as an effective way for crack treatment, especially for self-healing of concrete …

Ureolytic/non-ureolytic bacteria co-cultured self-healing agent for cementitious materials crack repair

HM Son, HY Kim, SM Park, HK Lee - Materials, 2018 - mdpi.com
The present study investigated the CaCO3 precipitation performance of ureolytic and non-
ureolytic bacteria co-cultured as a self-healing agent for cementitious materials crack repair …

Use of recycled concrete aggregates as carriers for self-healing of concrete cracks by bacteria with high urease activity

X Wang, J Xu, Z Wang, W Yao - Construction and Building Materials, 2022 - Elsevier
Microbial induced carbonate precipitation (MICP) has become one of the most attractive
strategies to achieve self-healing of concrete cracks in recent decades. In order to provide a …

Application of ureolysis-based microbial CaCO3 precipitation in self-healing of concrete and inhibition of reinforcement corrosion

J Xu, Y Tang, X Wang, Z Wang, W Yao - Construction and Building …, 2020 - Elsevier
Cracking is inevitable in concrete due to its quasi-brittle nature. The presence of micro-
cracks will not only impair concrete, but induce reinforcement corrosion by providing paths …

[HTML][HTML] Multifunctional, sustainable, and biological non-ureolytic self-healing systems for cement-based materials

M Fahimizadeh, P Pasbakhsh, LS Mae, JBL Tan… - Engineering, 2022 - Elsevier
Microbially induced calcium carbonate (CaCO 3) precipitation (MICP) has been investigated
as a sustainable alternative to conventional concrete remediation methods for improving the …

Complementing urea hydrolysis and nitrate reduction for improved microbially induced calcium carbonate precipitation

X Zhu, J Wang, N De Belie, N Boon - Applied microbiology and …, 2019 - Springer
Microbial-induced CaCO 3 precipitation has been widely applied in bacterial-based self-
healing concrete. However, the limited biogenetic CaCO 3 production by bacteria after they …

Optimization of deposition process for a productive and cohesive bio-CaCO3 to repair concrete existing cracks

R Gao, J Ma, G Liu, H Chen, J Wen, J Wang - Applied Microbiology and …, 2023 - Springer
Microbial-induced carbonate precipitation (MICP) is being investigated to repair concrete
cracks because of its good durability and compatibility with cementitious matrix. However …

Insight into the role of microbial calcium carbonate and the factors involved in self-healing concrete

HA Algaifi, SA Bakar, ARM Sam, M Ismail… - … and building materials, 2020 - Elsevier
Microbial calcium carbonate has been widely investigated to self-heal concrete cracks.
However, the issue revolving around the efficacy of crack self-healing remains important. In …

Bio self-healing concrete using MICP by an indigenous Bacillus cereus strain isolated from Qatari soil

MG Sohail, Z Al Disi, N Zouari, N Al Nuaimi… - … and Building Materials, 2022 - Elsevier
In this study, the self-healing process in concrete through microbial-induced calcium
carbonate precipitation (MICP) performed by an adapted indigenous strain of Bacillus …