Induced Calcium Carbonate Precipitation: A Sustainable Approach to
Reinforce Cement Concrete
Manisha Parmar1* and Priyanka Kamboj2
1Department of Microbiology, College of Basic Sciences and Humanities, Punjab Agricultural University, Ludhiana, India
2Department of Agriculture, Dev Samaj College for Women, Ferozepur City, Punjab, India
*Corresponding Author: Manisha Parmar, Department of Microbiology, College of Basic Sciences and Humanities, Punjab Agricultural University, Ludhiana, India.
July 24, 2021; Published: August 18, 2021
Cement is among the essential components of concrete, which is a widely known construction material. Despite the reliability and durability of concrete, extant of cracks results in defected concrete and subsequently accelerate concrete deterioration. Taking into consideration the relatively expensive reconstruction and maintenance of structural concrete, Microbially Induced Calcium Carbonate Precipitation (MICCP) or Bio-cementation has been recommended as one of the solutions to develop eco- friendly structural materials. It is a naturally occurring phenomenon which appertains to the precipitation and deposition of calcium carbonate as a consequence of peculiar action of ureolytic bacteria. Bio-cementation by urea hydrolysis is amongst the most productive ways to implement the method and is induced by a chain of reactions driven by urease. Apart from repairing cracks and concrete, bio-cementation has numerous applications, for instance consolidation of sand and filling of pores between the soil particles. This review focuses on general mechanism of urease enzyme and microbially induced calcium carbonate precipitation.
Keywords: Biocementation; Microbially Induced Calcium Carbonate Precipitation; Calcium Carbonate; Ureolysis; Urease Enzyme
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