Bioconsolidation of Damaged Construction Calcarenites and Evaluation of the Improvement in Their Petrophysical and Mechanical Properties
Bioconsolidation treatment using bacterial carbonatogenesis has been proposed as an environmentally friendly strategy for the efficient preservation of damaged stones, particularly suitable for carbonate stones. The study presented here deals with the evaluation of the performance of this treatment,...
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MDPI AG
2023-09-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/16/17/6043 |
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| author | Yolanda Spairani-Berrio J. Antonio Huesca-Tortosa Carlos Rodriguez-Navarro María Teresa Gonzalez-Muñoz Fadwa Jroundi |
| author_facet | Yolanda Spairani-Berrio J. Antonio Huesca-Tortosa Carlos Rodriguez-Navarro María Teresa Gonzalez-Muñoz Fadwa Jroundi |
| author_sort | Yolanda Spairani-Berrio |
| collection | DOAJ |
| description | Bioconsolidation treatment using bacterial carbonatogenesis has been proposed as an environmentally friendly strategy for the efficient preservation of damaged stones, particularly suitable for carbonate stones. The study presented here deals with the evaluation of the performance of this treatment, applied to damaged carbonate stones in two historical buildings in Spain. The methodology applied in this research serves as a reference for future similar studies. Results showed significant improvement in the petrophysical and mechanical properties of the damaged stone following the treatment through the production of calcite and vaterite by the abundant carbonatogenic bacteria inhabiting the stone. These bacteria were able to effectively consolidate weathered areas if an adequate nutritional solution was employed, thereby augmenting the stone’s resistance, as evidenced by the Drilling Resistance Measurement System (DRMS). FESEM images showed calcified bacteria and calcified exopolymeric substances (EPS) consolidating stone minerals without blocking their pores. In addition to consolidation, this biotreatment improves the stone’s behavior against water absorption and increases the contact angle of water droplets without significant modifications in the pore size or diminishing vapor permeability. No color changes are observed. Overall, these results show that the application of the nutritional solution (M-3P) for in situ consolidation of different types of porous carbonate building stones is a highly effective conservation method, with no modification of the chemical composition of the treated materials. |
| first_indexed | 2024-03-10T23:18:15Z |
| format | Article |
| id | doaj.art-3d7d8efa005e4e8586de42931d3b9dba |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T23:18:15Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-3d7d8efa005e4e8586de42931d3b9dba2023-11-19T08:29:28ZengMDPI AGMaterials1996-19442023-09-011617604310.3390/ma16176043Bioconsolidation of Damaged Construction Calcarenites and Evaluation of the Improvement in Their Petrophysical and Mechanical PropertiesYolanda Spairani-Berrio0J. Antonio Huesca-Tortosa1Carlos Rodriguez-Navarro2María Teresa Gonzalez-Muñoz3Fadwa Jroundi4Department of Architectural Constructions, University of Alicante, Carretera de San Vicente del Raspeig, s/n, 03690 San Vicente del Raspeig, SpainDepartment of Architectural Constructions, University of Alicante, Carretera de San Vicente del Raspeig, s/n, 03690 San Vicente del Raspeig, SpainDepartment of Mineralogy and Petrology, Faculty of Science, University of Granada, Avda. Fuentenueva s/n, 18071 Granada, SpainDepartment of Microbiology, Faculty of Science, University of Granada, Avda. Fuentenueva s/n, 18071 Granada, SpainDepartment of Microbiology, Faculty of Science, University of Granada, Avda. Fuentenueva s/n, 18071 Granada, SpainBioconsolidation treatment using bacterial carbonatogenesis has been proposed as an environmentally friendly strategy for the efficient preservation of damaged stones, particularly suitable for carbonate stones. The study presented here deals with the evaluation of the performance of this treatment, applied to damaged carbonate stones in two historical buildings in Spain. The methodology applied in this research serves as a reference for future similar studies. Results showed significant improvement in the petrophysical and mechanical properties of the damaged stone following the treatment through the production of calcite and vaterite by the abundant carbonatogenic bacteria inhabiting the stone. These bacteria were able to effectively consolidate weathered areas if an adequate nutritional solution was employed, thereby augmenting the stone’s resistance, as evidenced by the Drilling Resistance Measurement System (DRMS). FESEM images showed calcified bacteria and calcified exopolymeric substances (EPS) consolidating stone minerals without blocking their pores. In addition to consolidation, this biotreatment improves the stone’s behavior against water absorption and increases the contact angle of water droplets without significant modifications in the pore size or diminishing vapor permeability. No color changes are observed. Overall, these results show that the application of the nutritional solution (M-3P) for in situ consolidation of different types of porous carbonate building stones is a highly effective conservation method, with no modification of the chemical composition of the treated materials.https://www.mdpi.com/1996-1944/16/17/6043bioconsolidationbacterial carbonatogenesisstone consolidationlimestone treatmentcalcarenite treatment |
| spellingShingle | Yolanda Spairani-Berrio J. Antonio Huesca-Tortosa Carlos Rodriguez-Navarro María Teresa Gonzalez-Muñoz Fadwa Jroundi Bioconsolidation of Damaged Construction Calcarenites and Evaluation of the Improvement in Their Petrophysical and Mechanical Properties Materials bioconsolidation bacterial carbonatogenesis stone consolidation limestone treatment calcarenite treatment |
| title | Bioconsolidation of Damaged Construction Calcarenites and Evaluation of the Improvement in Their Petrophysical and Mechanical Properties |
| title_full | Bioconsolidation of Damaged Construction Calcarenites and Evaluation of the Improvement in Their Petrophysical and Mechanical Properties |
| title_fullStr | Bioconsolidation of Damaged Construction Calcarenites and Evaluation of the Improvement in Their Petrophysical and Mechanical Properties |
| title_full_unstemmed | Bioconsolidation of Damaged Construction Calcarenites and Evaluation of the Improvement in Their Petrophysical and Mechanical Properties |
| title_short | Bioconsolidation of Damaged Construction Calcarenites and Evaluation of the Improvement in Their Petrophysical and Mechanical Properties |
| title_sort | bioconsolidation of damaged construction calcarenites and evaluation of the improvement in their petrophysical and mechanical properties |
| topic | bioconsolidation bacterial carbonatogenesis stone consolidation limestone treatment calcarenite treatment |
| url | https://www.mdpi.com/1996-1944/16/17/6043 |
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