Effects of microbial agents to the properties of fly ash-based paste

Specific microbial agents such as bacteria are often used in concrete to improve its performance. Some microbes act as self-healing agents to close cracks in concrete, and to increase concrete strength. This paper presents a study to observe the effects of microbe addition to two types of concrete m...

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Bibliographic Details
Published inMATEC Web of Conferences Vol. 195; p. 1012
Main Authors Dwi Wulandari, Kiki, Jaya Ekaputri, Januarti, Triwulan, Fujiyama, Chikako, H. E. Setiamarga, Davin
Format Journal Article Conference Proceeding
LanguageEnglish
Published Les Ulis EDP Sciences 01.01.2018
Subjects
Cement
Concrete
Construction materials
Fly ash
Microorganisms
Porosity
Portland cements
Properties (attributes)
Self healing materials
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Summary:Specific microbial agents such as bacteria are often used in concrete to improve its performance. Some microbes act as self-healing agents to close cracks in concrete, and to increase concrete strength. This paper presents a study to observe the effects of microbe addition to two types of concrete mixtures the fly ash-based, as geopolymer paste, and portland cement paste containing fly ash. Furthermore, the investigation was conducted to compare the properties of each paste, such as its compressive strengths, specific gravities, porosity, microstructures, and XRay diffracting properties. The results indicate that microbial activities positively affected the properties of both, portland cement paste and geopolymer paste. The result reported here strongly suggests that fly ash can be used to produce a high quality, but environmental friendly construction material when it’s mixed together with useful microbes.
ISSN:2261-236X
2274-7214
2261-236X
DOI:10.1051/matecconf/201819501012