{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,3]],"date-time":"2026-03-03T00:54:25Z","timestamp":1772499265047,"version":"3.50.1"},"reference-count":66,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2021,4,12]],"date-time":"2021-04-12T00:00:00Z","timestamp":1618185600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"COST CA15202 \u201cSelf-Healing as Preventive Repair of Concrete Structures (SARCOS)","award":["COST CA15202 \u201cSelf-Healing as Preventive Repair of Concrete Structures (SARCOS)"],"award-info":[{"award-number":["COST CA15202 \u201cSelf-Healing as Preventive Repair of Concrete Structures (SARCOS)"]}]},{"DOI":"10.13039\/501100000288","name":"Royal Society","doi-asserted-by":"publisher","award":["RGS\\R1\\191304"],"award-info":[{"award-number":["RGS\\R1\\191304"]}],"id":[{"id":"10.13039\/501100000288","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Serbian Ministry of Education, Science and Technological development","award":["Project No. 451-03-68\/2020-14\/200134"],"award-info":[{"award-number":["Project No. 451-03-68\/2020-14\/200134"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sustainability"],"abstract":"<jats:p>Reinforced concrete crack repair and maintenance costs are around 84% to 125% higher than construction costs, which emphasises the need to increase the infrastructure service life. Prolongation of the designed service life of concrete structures can have significant economic and ecological benefits by minimising the maintenance actions and related increase of carbon and energy expenditure, making it more sustainable. Different mechanisms such as diffusion, permeation and capillary action are responsible for the transport of fluids inside the concrete, which can impact on the structure service life. This paper presents data on microbially induced repair and self-healing solutions for cementitious materials available in the contemporary literature and compares results of compressive strength test and capillary water absorption test, which are relevant to their sealing and mechanical characteristics. The results of the repair and self-healing solutions (relative to unassisted recovery processes) were \u201cnormalized.\u201d Externally applied bacteria-based solutions can improve the compressive strength of cementitious materials from 13% to 27%. The internal solution based solely on bacterial suspension had 19% improvement efficacy. Results also show that \u201chybrid\u201d solutions, based on both bio-based and non-bio-based components, whether externally or internally applied, have the potential for best repair results, synergistically combining their benefits.<\/jats:p>","DOI":"10.3390\/su13084287","type":"journal-article","created":{"date-parts":[[2021,4,12]],"date-time":"2021-04-12T11:05:06Z","timestamp":1618225506000},"page":"4287","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":16,"title":["Comparison of Microbially Induced Healing Solutions for Crack Repairs of Cement-Based Infrastructure"],"prefix":"10.3390","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6346-9848","authenticated-orcid":false,"given":"John Milan","family":"van der Bergh","sequence":"first","affiliation":[{"name":"Built Environment and Sustainable Technologies (BEST) Research Institute, Liverpool John Moores University, Liverpool L3 2ET, UK"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0773-7115","authenticated-orcid":false,"given":"Bojan","family":"Miljevi\u0107","sequence":"additional","affiliation":[{"name":"Faculty of Technology, University of Novi Sad, 21000 Novi Sad, Serbia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6415-3837","authenticated-orcid":false,"given":"Sne\u017eana","family":"Vu\u010deti\u0107","sequence":"additional","affiliation":[{"name":"Faculty of Technology, University of Novi Sad, 21000 Novi Sad, Serbia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9118-4209","authenticated-orcid":false,"given":"Olja","family":"\u0160ovljanski","sequence":"additional","affiliation":[{"name":"Faculty of Technology, University of Novi Sad, 21000 Novi Sad, Serbia"}]},{"given":"Sini\u0161a","family":"Markov","sequence":"additional","affiliation":[{"name":"Faculty of Technology, University of Novi Sad, 21000 Novi Sad, Serbia"}]},{"given":"Mike","family":"Riley","sequence":"additional","affiliation":[{"name":"Built Environment and Sustainable Technologies (BEST) Research Institute, Liverpool John Moores University, Liverpool L3 2ET, UK"}]},{"given":"Jonjaua","family":"Ranogajec","sequence":"additional","affiliation":[{"name":"Faculty of Technology, University of Novi Sad, 21000 Novi Sad, Serbia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6292-2073","authenticated-orcid":false,"given":"Ana","family":"Bras","sequence":"additional","affiliation":[{"name":"Built Environment and Sustainable Technologies (BEST) Research Institute, Liverpool John Moores University, Liverpool L3 2ET, UK"}]}],"member":"1968","published-online":{"date-parts":[[2021,4,12]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"257","DOI":"10.1016\/j.conbuildmat.2019.02.002","article-title":"Is concrete healing really efficient? 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