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      New Medium for Isolation of Bacteria From Cement Kiln Dust with a Potential to Apply in Bio-Concrete

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          Quantification of crack-healing in novel bacteria-based self-healing concrete

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            Use of bacteria to repair cracks in concrete

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              Calcite precipitation induced by polyurethane-immobilized Bacillus pasteurii.

              Polyurethane (PU) foam was used to immobilize the whole cell of Bacillus pasteurii. The immobilized cells exhibited the rates of calcite precipitation and ammonia production as high as those of the free cells. Scanning electron micrographs identified the cells embedded in calcite crystals throughout PU matrices. Calcite in PU showed little effect on the elastic modulus and tensile strength of the polymer, but increased the compressive strengths of concrete cubes, whose cracks were remediated with PU-immobilized cells. These observations led us to believe that the calcite might remain as a form of precipitation, not as a bonding material within the matrices.
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                Author and article information

                Journal
                IOP Conference Series: Earth and Environmental Science
                IOP Conf. Ser.: Earth Environ. Sci.
                IOP Publishing
                1755-1307
                1755-1315
                April 01 2018
                April 2018
                April 11 2018
                : 140
                : 012155
                Article
                10.1088/1755-1315/140/1/012155
                43b3189c-44ec-43c7-96aa-6af18b238327
                © 2018

                http://iopscience.iop.org/info/page/text-and-data-mining

                http://creativecommons.org/licenses/by/3.0/

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