A Review on the Microbial Induced Carbonate Precipitation (MICP) for Soil Stabilization


Kalkan E.

International Journal of Earth Sciences Knowledge and Applications , cilt.2, sa.1, ss.38-47, 2020 (Hakemli Dergi)

Özet

Soil stabilization known as the process of improving the engineering properties of soils is a method applied when the engineering properties of soil are not suitable for purpose. There are several methods of soil stabilization that could be implemented to improve the physical characteristics of the soils. MICP is one of the most popular bio-mediated processes for improving the engineering properties of porous geomaterials as alternative to other methods. The MICP, nowadays as a subject of intense research interest in the field of biogeotechnology providing solutions to a wider range of engineering applications, utilises bacteria to hydrolyse urea to give carbonate ions which react with a calcium-rich solution to produce calcium carbonate that binds the soil particles together leading to increased soil strength and stiffness. In this bio-geochemical process, MICP increases the strength and stiffness of the soil due to binded the sand grains together at the particle-particle contacts, which increases the strength and stiffness of the soil. It is concluded that MICP can be used for geotechnical engineering purpose of improving soil properties. This cheap and eco-friendly technique improves strength parameters of the soil such as shear strength and decreases the permeability of gravelly and sandy soil. Soil stabilization known as the process of improving the engineering properties of soils is a method applied when the engineering properties of soil are not suitable for purpose. There are several methods of soil stabilization that could be implemented to improve the physical characteristics of the soils. MICP is one of the most popular bio-mediated processes for improving the engineering properties of porous geomaterials as alternative to other methods. The MICP, nowadays as a subject of intense research interest in the field of biogeotechnology providing solutions to a wider range of engineering applications, utilises bacteria to hydrolyse urea to give carbonate ions which react with a calcium-rich solution to produce calcium carbonate that binds the soil particles together leading to increased soil strength and stiffness. In this bio-geochemical process, MICP increases the strength and stiffness of the soil due to binded the sand grains together at the particle-particle contacts, which increases the strength and stiffness of the soil. It is concluded that MICP can be used for geotechnical engineering purpose of improving soil properties. This cheap and eco-friendly technique improves strength parameters of the soil such as shear strength and decreases the permeability of gravelly and sandy soil. known as the process of improving the engineering properties of soils is a
method applied when the engineering properties of soil are not suitable for purpose. There are
several methods of soil stabilization that could be implemented to
improve the physical
characteristics of the soils. MICP is one of the most popular bio-
mediated processes for
improving the engineering properties of porous geomaterials as alternative to other methods.
The MICP, nowadays as a subject of intense research i
nterest in the field of biogeotechnology
providing solutions to a wider range of engineering applications, utilises bacteria to hydrolyse
urea to give carbonate ions which react with a calcium-
rich solution to produce calcium
carbonate that binds the soil
particles together leading to increased soil strength and stiffness.
In this bio-geochemical process, MICP
increases the strength and stiffness of the soil due to
binded the sand grains together at the particle
-particle contacts, which increases the streng
th
and stiffness of the soil. It is concluded that MICP
can be used for geotechnical engineering
purpose of improving soil properties. This cheap and eco-
friendly technique improves strength
parameters of the soil such as shear strength and decreases the p
ermeability of gravelly and
sandy soil.