The main focus of this research was the bio-stimulated healing of cracks in lime mortar samples (historical and newly designed). The investigation started from comprehensive characterisation of historical mortars, while in the next stage a compatible conservation mortar was designed and characterised, with special attention given to the contact zone formation between original and conservation mortars. The next step was the design of a bio-stimulating crack-sealing agent, a two-component liquid system: bacteria culture Sporosarcina pasteurii DSM 33 and nutrients. Both historical and conservation mortar samples were used in order to study their potentials for bio-stimulated surface-crack repair. The experiment lasted for 150 days, allowing the ureolytic bacteria Sporosarcina pasteurii DSM 33 to induce the precipitation of calcium carbonate into cracks and heal the damaged surface of the tested materials. The healing phenomenon was continuously monitored during a period of 150 days. Speci...al attention was given to the evaluation of the morphology, chemical and structural characteristics of the deposits created in/on the surface cracks, monitored by optical microscopy, SEM, XRF and XRD analyses. The obtained results present valuable input for the application of the developed system in real environmental conditions as a solution for the future sustainable architectural conservation of traditionally prepared mortars.
TY - JOUR
AU - Vučetić, Snežana
AU - Čjepa, Damir
AU - Miljević, Bojan
AU - van der Bergh, John Milan
AU - Šovljanski, Olja
AU - Tomić, Ana
AU - Nikolić, Emilija
AU - Markov, Siniša
AU - Hiršenberger, Helena
AU - Ranogajec, Jonjaua
PY - 2023
UR - http://rai.ai.ac.rs/handle/123456789/496
AB - The main focus of this research was the bio-stimulated healing of cracks in lime mortar samples (historical and newly designed). The investigation started from comprehensive characterisation of historical mortars, while in the next stage a compatible conservation mortar was designed and characterised, with special attention given to the contact zone formation between original and conservation mortars. The next step was the design of a bio-stimulating crack-sealing agent, a two-component liquid system: bacteria culture Sporosarcina pasteurii DSM 33 and nutrients. Both historical and conservation mortar samples were used in order to study their potentials for bio-stimulated surface-crack repair. The experiment lasted for 150 days, allowing the ureolytic bacteria Sporosarcina pasteurii DSM 33 to induce the precipitation of calcium carbonate into cracks and heal the damaged surface of the tested materials. The healing phenomenon was continuously monitored during a period of 150 days. Special attention was given to the evaluation of the morphology, chemical and structural characteristics of the deposits created in/on the surface cracks, monitored by optical microscopy, SEM, XRF and XRD analyses. The obtained results present valuable input for the application of the developed system in real environmental conditions as a solution for the future sustainable architectural conservation of traditionally prepared mortars.
PB - MDPI
T2 - Materials
T1 - Bio-Stimulated Surface Healing of Historical and Compatible Conservation Mortars
IS - 2
SP - 642
VL - 16
DO - https://doi.org/10.3390/ma16020642
ER -
@article{
author = "Vučetić, Snežana and Čjepa, Damir and Miljević, Bojan and van der Bergh, John Milan and Šovljanski, Olja and Tomić, Ana and Nikolić, Emilija and Markov, Siniša and Hiršenberger, Helena and Ranogajec, Jonjaua",
year = "2023",
abstract = "The main focus of this research was the bio-stimulated healing of cracks in lime mortar samples (historical and newly designed). The investigation started from comprehensive characterisation of historical mortars, while in the next stage a compatible conservation mortar was designed and characterised, with special attention given to the contact zone formation between original and conservation mortars. The next step was the design of a bio-stimulating crack-sealing agent, a two-component liquid system: bacteria culture Sporosarcina pasteurii DSM 33 and nutrients. Both historical and conservation mortar samples were used in order to study their potentials for bio-stimulated surface-crack repair. The experiment lasted for 150 days, allowing the ureolytic bacteria Sporosarcina pasteurii DSM 33 to induce the precipitation of calcium carbonate into cracks and heal the damaged surface of the tested materials. The healing phenomenon was continuously monitored during a period of 150 days. Special attention was given to the evaluation of the morphology, chemical and structural characteristics of the deposits created in/on the surface cracks, monitored by optical microscopy, SEM, XRF and XRD analyses. The obtained results present valuable input for the application of the developed system in real environmental conditions as a solution for the future sustainable architectural conservation of traditionally prepared mortars.",
publisher = "MDPI",
journal = "Materials",
title = "Bio-Stimulated Surface Healing of Historical and Compatible Conservation Mortars",
number = "2",
pages = "642",
volume = "16",
doi = "https://doi.org/10.3390/ma16020642"
}
Vučetić, S., Čjepa, D., Miljević, B., van der Bergh, J. M., Šovljanski, O., Tomić, A., Nikolić, E., Markov, S., Hiršenberger, H.,& Ranogajec, J.. (2023). Bio-Stimulated Surface Healing of Historical and Compatible Conservation Mortars. in Materials
MDPI., 16(2), 642.
https://doi.org/https://doi.org/10.3390/ma16020642
Vučetić S, Čjepa D, Miljević B, van der Bergh JM, Šovljanski O, Tomić A, Nikolić E, Markov S, Hiršenberger H, Ranogajec J. Bio-Stimulated Surface Healing of Historical and Compatible Conservation Mortars. in Materials. 2023;16(2):642.
doi:https://doi.org/10.3390/ma16020642 .
Vučetić, Snežana, Čjepa, Damir, Miljević, Bojan, van der Bergh, John Milan, Šovljanski, Olja, Tomić, Ana, Nikolić, Emilija, Markov, Siniša, Hiršenberger, Helena, Ranogajec, Jonjaua, "Bio-Stimulated Surface Healing of Historical and Compatible Conservation Mortars" in Materials, 16, no. 2 (2023):642,
https://doi.org/https://doi.org/10.3390/ma16020642 . .
