Consolidation of quarry calcarenite by calcium carbonate precipitation induced by bacteria activated among the microbiota inhabiting the stone

A new method is described to protect and to increase the consolidation of new pieces of stone that will replace damaged ones in restoration procedures, in order to make the new piece more resistant to deterioration. Culture media were applied to quarry porous limestone whose natural microbial commun...

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Published inInternational biodeterioration & biodegradation Vol. 62; no. 4; pp. 352 - 363
Main Authors Jimenez-Lopez, Concepcion, Jroundi, Fadwa, Pascolini, Chiara, Rodriguez-Navarro, Carlos, Piñar-Larrubia, Guadalupe, Rodriguez-Gallego, Manuel, González-Muñoz, María Teresa
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.12.2008
Subjects
Bacterial biomineralization
Calcite
Myxococcus xanthus
Stone consolidation
Vaterite
Bacterial biomineralization
Vaterite
Myxococcus xanthus
Calcite
Stone consolidation
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Summary:A new method is described to protect and to increase the consolidation of new pieces of stone that will replace damaged ones in restoration procedures, in order to make the new piece more resistant to deterioration. Culture media were applied to quarry porous limestone whose natural microbial community was not eliminated. The culture media activated bacteria belonging to the microbial community that are able to induce the precipitation of calcium carbonate. The newly produced calcium carbonate was compatible with the substrate and consolidated the stone with no pore plugging. This is the first study to propose the use of a bacterial non-inoculated culture medium in the consolidation of newly quarried stone. Application of the culture media specified in this study is proposed as a procedure for effective protection of ornamental limestone.
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ISSN:0964-8305
1879-0208
DOI:10.1016/j.ibiod.2008.03.002