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Limestone porosity determines the protective effect of a biogenic carbonate surface treatment

Willem De Muynck UGent, Stijn Leuridan UGent, Nele De Belie UGent and Willy Verstraete UGent (2011) 12th international conference on durability of building materials and components, Proceedings. 2. p.881-888
abstract
Microbially induced carbonate precipitation has been explored by several researchers for the protection and consolidation of ornamental limestone, a process known as biodeposition. The influences of microbial aspects and chemical parameters on the efficiency of this kind of treatment have been widely documented. This is the first paper in which the influence of the type of stone on the treatment efficiency is reported. In this study, an ureolytic biodeposition treatment was applied on four different limestones. Durability of treated stones was assessed by means of transport and degradation processes. A higher weight increase due to carbonate precipitation was observed for stones with higher porosity. The presence of a layer of biogenic carbonate crystals resulted in a decreased rate of water absorption, the effect being more pronounced for the more porous stones. For the most porous stone, i.e. Savonnières, the biodepostion treatment resulted in a decrease of the sorptivity by a factor 17. The biogenic carbonate exerted a consolidating effect on all type of stones. For prisms of 40 mm × 20 mm × 10 mm, the biodeposition treatment resulted in a 50 % lower weight loss upon sonication compared to untreated samples. From this research, it is clear that the porosity, and more specific, pore size distribution has a major influence on the effectiveness of a biodeposition treatment. Pore size governs bacterial adsorption, and hence, the amount of carbonate that can be precipitated. From this study, it follows that biodepostion is less effective on microporous stones such as Massangis.
Please use this url to cite or link to this publication:
author
organization
year
type
conference
publication status
published
subject
keyword
bacteria, conservation, Biomineralization, ageing tests, MICP, stone
in
12th international conference on durability of building materials and components, Proceedings
editor
Vasco Peixoto de Freitas, Helena Corvacho and Michael Lacasse
volume
2
pages
881 - 888
publisher
FEUP
place of publication
Porto, Portugal
conference name
12th International conference on Durability of Building Materials and Components (XII DBMC - 2011)
conference location
Porto, Portugal
conference start
2011-04-12
conference end
2011-04-15
ISBN
9789727521326
project
Biotechnology for a sustainable economy (Bio-Economy)
language
English
UGent publication?
yes
classification
C1
copyright statement
I have transferred the copyright for this publication to the publisher
id
2914603
handle
http://hdl.handle.net/1854/LU-2914603
date created
2012-06-21 13:16:08
date last changed
2013-02-27 12:03:41
@inproceedings{2914603,
  abstract     = {Microbially induced carbonate precipitation has been explored by several researchers for the protection and consolidation of ornamental limestone, a process known as biodeposition. The influences of microbial aspects and chemical parameters on the efficiency of this kind of treatment have been widely documented. This is the first paper in which the influence of the type of stone on the treatment efficiency is reported. In this study, an ureolytic biodeposition treatment was applied on four different limestones. Durability of treated stones was assessed by means of transport and degradation processes. A higher weight increase due to carbonate precipitation was observed for stones with higher porosity. The presence of a layer of biogenic carbonate crystals resulted in a decreased rate of water absorption, the effect being more pronounced for the more porous stones. For
the most porous stone, i.e. Savonni{\`e}res, the biodepostion treatment resulted in a decrease of the
sorptivity by a factor 17. The biogenic carbonate exerted a consolidating effect on all type of stones. For prisms of 40 mm {\texttimes} 20 mm {\texttimes} 10 mm, the biodeposition treatment resulted in a 50 \% lower weight loss upon sonication compared to untreated samples. From this research, it is clear that the porosity, and more specific, pore size distribution has a major influence on the effectiveness of a biodeposition treatment. Pore size governs bacterial adsorption, and hence, the amount of carbonate that can be precipitated. From this study, it follows that biodepostion is less effective on microporous stones such as Massangis.},
  author       = {De Muynck, Willem and Leuridan, Stijn and De Belie, Nele and Verstraete, Willy},
  booktitle    = {12th international conference on durability of building materials and components, Proceedings},
  editor       = {Peixoto de Freitas, Vasco and Corvacho, Helena and Lacasse, Michael},
  isbn         = {9789727521326},
  keyword      = {bacteria,conservation,Biomineralization,ageing tests,MICP,stone},
  language     = {eng},
  location     = {Porto, Portugal},
  pages        = {881--888},
  publisher    = {FEUP},
  title        = {Limestone porosity determines the protective effect of a biogenic carbonate surface treatment},
  volume       = {2},
  year         = {2011},
}

Chicago
De Muynck, Willem, Stijn Leuridan, Nele De Belie, and Willy Verstraete. 2011. “Limestone Porosity Determines the Protective Effect of a Biogenic Carbonate Surface Treatment.” In 12th International Conference on Durability of Building Materials and Components, Proceedings, ed. Vasco Peixoto de Freitas, Helena Corvacho, and Michael Lacasse, 2:881–888. Porto, Portugal: FEUP.
APA
De Muynck, W., Leuridan, S., De Belie, N., & Verstraete, W. (2011). Limestone porosity determines the protective effect of a biogenic carbonate surface treatment. In V. Peixoto de Freitas, H. Corvacho, & M. Lacasse (Eds.), 12th international conference on durability of building materials and components, Proceedings (Vol. 2, pp. 881–888). Presented at the 12th International conference on Durability of Building Materials and Components (XII DBMC - 2011), Porto, Portugal: FEUP.
Vancouver
1.
De Muynck W, Leuridan S, De Belie N, Verstraete W. Limestone porosity determines the protective effect of a biogenic carbonate surface treatment. In: Peixoto de Freitas V, Corvacho H, Lacasse M, editors. 12th international conference on durability of building materials and components, Proceedings. Porto, Portugal: FEUP; 2011. p. 881–8.
MLA
De Muynck, Willem, Stijn Leuridan, Nele De Belie, et al. “Limestone Porosity Determines the Protective Effect of a Biogenic Carbonate Surface Treatment.” 12th International Conference on Durability of Building Materials and Components, Proceedings. Ed. Vasco Peixoto de Freitas, Helena Corvacho, & Michael Lacasse. Vol. 2. Porto, Portugal: FEUP, 2011. 881–888. Print.