Self-Healing of Cementitious Materials via Bacteria: A Theoretical Study

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F22%3A00360026" target="_blank" >RIV/68407700:21110/22:00360026 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.3390/cryst12070920" target="_blank" >https://doi.org/10.3390/cryst12070920</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/cryst12070920" target="_blank" >10.3390/cryst12070920</a>

Result language

angličtina

Original language name

Self-Healing of Cementitious Materials via Bacteria: A Theoretical Study

Original language description

Cracks on the surface of cementitious composites represent an entrance gate for harmful substances-particularly water-to devastate the bulk of material, which results in lower durability. Autogenous crack-sealing is a significantly limited mechanism due to a combination of the hydration process and calcite nucleation, and self-healing cementitious composites are a research area that require a great deal of scientific effort. In contrast to time-consuming experiments (e.g., only the preparation of an applicable bare concrete sample itself requires more than 28 days), appropriately selected mathematical models may assist in the deeper understanding of self-healing processes via bacteria. This paper presents theoretically oriented research dealing with the application of specific bacteria (B. pseudofirmus) capable of transforming available nutrients into calcite, allowing for the cracks on the surfaces of cementitious materials to be repaired. One of the principal objectives of this study is to analyze the sensitivity of the bacterial growth curves to the system parameters within the context of the logistic model in the Monod approach. Analytically calculated growth curves for various parameters (initial inoculation concentration, initial nutrition content, and metabolic activity of bacteria) are compared with experimental data. The proposed methodology may also be applied to analyze the growth of microorganisms of nonbacterial origin (e.g., molds, yeasts).

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20501 - Materials engineering

Project

<a href="/en/project/GA22-06621S" target="_blank" >GA22-06621S: Inactivation of mould growth on surfaces of building materials using low temperature atmospheric plasma</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Crystals

ISSN

2073-4352

e-ISSN

2073-4352

Volume of the periodical

12

Issue of the periodical within the volume

7

Country of publishing house

CH - SWITZERLAND

Number of pages

12

Pages from-to

1-12

UT code for WoS article

000831838300001

EID of the result in the Scopus database

2-s2.0-85133546092