A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Influence of Bacillus Megaterium on Crack Healing and Mechanical Properties of Concrete
Inclusion of calcite precipitating bacteria during mixing is one of the promising techniques of improving the concrete durability. Concrete cracks can occur due to shrinkage, creep or due to different loading conditions. Bacteria in presence of moisture, precipitates calcite in the microcracks and repair the concrete. Bacillus megaterium was isolated from the soil and introduced in concrete at 105 cells/ml concentration. This paper reports the effect of the inclusion of Bacillus megaterium on the strength, porosity and concrete crack healing under two different curing techniques (standard water curing and air curing). Six different concrete mixtures were made, two control, two with standard bacteria and two with bacteria isolated from the soil for standard water curing and air curing techniques. Bacillus megaterium in concrete resulted in increased strength and decreased porosity of concrete. These results were obtained due to the deposition of bacteria on pores.
Influence of Bacillus Megaterium on Crack Healing and Mechanical Properties of Concrete
Inclusion of calcite precipitating bacteria during mixing is one of the promising techniques of improving the concrete durability. Concrete cracks can occur due to shrinkage, creep or due to different loading conditions. Bacteria in presence of moisture, precipitates calcite in the microcracks and repair the concrete. Bacillus megaterium was isolated from the soil and introduced in concrete at 105 cells/ml concentration. This paper reports the effect of the inclusion of Bacillus megaterium on the strength, porosity and concrete crack healing under two different curing techniques (standard water curing and air curing). Six different concrete mixtures were made, two control, two with standard bacteria and two with bacteria isolated from the soil for standard water curing and air curing techniques. Bacillus megaterium in concrete resulted in increased strength and decreased porosity of concrete. These results were obtained due to the deposition of bacteria on pores.
Influence of Bacillus Megaterium on Crack Healing and Mechanical Properties of Concrete
RILEM Bookseries
Ashish, Deepankar Kumar (editor) / de Brito, Jorge (editor) / Sharma, Sanjay Kumar (editor) / Attri, Rishab (author) / Shukla, Abhilash (author) / Sharma, Vinayak (author) / Thakur, Ayush (author)
International Conference on Innovative Technologies for Clean and Sustainable Development ; 2020 ; Chandigarh, India
3rd International Conference on Innovative Technologies for Clean and Sustainable Development ; Chapter: 10 ; 139-155
RILEM Bookseries ; 29
2020-11-06
17 pages
Article/Chapter (Book)
Electronic Resource
English
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Optimum concentration of Bacillus megaterium for strengthening structural concrete
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