Development of a novel compressed tablet-based bacterial agent for self-healing cementitious material
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Son, Yongjun | - |
dc.contributor.author | Min, Jihyeon | - |
dc.contributor.author | Jang, Indong | - |
dc.contributor.author | Yi, Chongku | - |
dc.contributor.author | Park, Woojun | - |
dc.date.accessioned | 2022-06-09T16:40:42Z | - |
dc.date.available | 2022-06-09T16:40:42Z | - |
dc.date.created | 2022-06-09 | - |
dc.date.issued | 2022-05 | - |
dc.identifier.issn | 0958-9465 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/141752 | - |
dc.description.abstract | A novel bacterial carrier consisting of microcrystalline cellulose (MCC) tablets was developed to encapsulate spores and has 3.0 +/- 0.5 x 10(11) spores per dried gram, which could improve the self-healing efficiency of bacterial agents. The alkaline-resistant and spore-forming bacteria Lysinibacillus boronitolerans YS11 and Bacillus miscanthi AK13 could fill microcracks with precipitated calcium carbonate in harsh cement conditions. The MICP-capable bacteria in the tablets cured the microcracks within 7 days. The calcium carbonate on the cracks was identified via scanning electron microscopy and X-ray diffractometry, validating the MICP performance and bacterial viability. Constituting only 3% of the cement mass, the MCC-tablet allowed repairing of micro-cracks. The water permeability of mortar specimens mixed with MCC tablets steadily reduced with increasing curing ages, with crack repair rates of up to 91.1% within 28 days. Our study proved that the MCC tablets developed herein are effective carriers of bacterial spores and could thus be used for the development of self-healing cementitious material. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCI LTD | - |
dc.subject | MICROCRYSTALLINE CELLULOSE | - |
dc.subject | CARBONATE PRECIPITATION | - |
dc.subject | CONCRETE | - |
dc.subject | CONSTRUCTION | - |
dc.subject | OPTIMIZATION | - |
dc.subject | ENVIRONMENT | - |
dc.subject | DESIGN | - |
dc.title | Development of a novel compressed tablet-based bacterial agent for self-healing cementitious material | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Yi, Chongku | - |
dc.contributor.affiliatedAuthor | Park, Woojun | - |
dc.identifier.doi | 10.1016/j.cemconcomp.2022.104514 | - |
dc.identifier.scopusid | 2-s2.0-85127328650 | - |
dc.identifier.wosid | 000793301200002 | - |
dc.identifier.bibliographicCitation | CEMENT & CONCRETE COMPOSITES, v.129 | - |
dc.relation.isPartOf | CEMENT & CONCRETE COMPOSITES | - |
dc.citation.title | CEMENT & CONCRETE COMPOSITES | - |
dc.citation.volume | 129 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Construction & Building Technology | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Construction & Building Technology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Composites | - |
dc.subject.keywordPlus | MICROCRYSTALLINE CELLULOSE | - |
dc.subject.keywordPlus | CARBONATE PRECIPITATION | - |
dc.subject.keywordPlus | CONCRETE | - |
dc.subject.keywordPlus | CONSTRUCTION | - |
dc.subject.keywordPlus | OPTIMIZATION | - |
dc.subject.keywordPlus | ENVIRONMENT | - |
dc.subject.keywordPlus | DESIGN | - |
dc.subject.keywordAuthor | Bio-concrete | - |
dc.subject.keywordAuthor | Agricultural by-product | - |
dc.subject.keywordAuthor | Sporulation | - |
dc.subject.keywordAuthor | Encapsulation | - |
dc.subject.keywordAuthor | Compression-type | - |
dc.subject.keywordAuthor | Tablet | - |
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