Production of Bacteria for Structural Concrete - Biotechnologies and Biomimetics for Civil Engineering - page 316

14.6 Conclusions
The quality of building structures is very much dependent upon its strength and
impermeability. However, many natural processes causes damage to such struc-
tures. In such a situation, it is very important to find novel additive to use during
construction, which can improve the durability of structures as well, can be used in
the remediation of damaged affects. Hence, a sustainable building material is need
of time. Microbially induced calcium carbonate precipitation has great potential
not only in the area of microbiology or environmental biotechnology, but also in
civil and geotechnical engineering. The introduction of MICP-based microbial
concrete offers a novel additive to cement-based materials with adequate imper-
meability, compressive strength, and reduced reinforced corrosion. The laboratory-
based researches provide enough evidence for the successful use of microbial
concrete; however, the real challenges are to use it in field studies and in con-
struction of new structures. More research requires converting results achieved in
the laboratory into practical applications. The microbial concrete can also be
utilized in rehabilitation of heritage stone and lime mortar structures. This MICP-
based process can also be carefully used in the remediation of structures that
contain hazardous materials such as nuclear fill buildings. The production of
bacteria for structural concrete will provide the basis for an alternative and high
quality concrete sealant that is highly economic and environmentally safe, leading
to the enhancement in the durability of building materials and structures.
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