Biogenic deterioration of concrete and its mitigation technologies

Noeiaghaei, Tahereh; Mukherjee, Abhijit; Chae, So-Ryong

doi:10.1016/j.conbuildmat.2017.05.144

Cited by 97 publications

(53 citation statements)

References 123 publications

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“…Usually, the use of nanomaterials in the field of antimicrobial protection of stone artifacts harvests the known potential of some metallic or metal oxide nanoparticles (such as silver, a wide known antimicrobial, ZnO, TiO 2 , CuO, Cu, etc.) [68][69][70][71][72]. Among those examples, the hydrophobic film developed by Ruffolo et al [68], incorporating a photocatalytic agent (TiO 2 ) and an antimicrobial agent (Ag), showed very good antifouling properties for application on underwater marble artifacts.…”

Section: Nanotechnological Approachesmentioning

confidence: 99%

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Selected Aspects Regarding the Restoration/Conservation of Traditional Wood and Masonry Building Materials: A Short Overview of the Last Decade Findings

2020

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Vernacular buildings are usually constructed using materials at hand, including wood, natural stone and bricks (either clay or mud bricks). All those materials are exposed to a series of environmental factors, affecting their structure and integrity. The literature review was conducted using different databases (Scopus, Web of Science, ScienceDirect, SpringerLink) using as keywords the historical material, "heritage" and the terms regarding the desired effect, within the envisaged time period (2010)(2011)(2012)(2013)(2014)(2015)(2016)(2017)(2018)(2019). The assessment of the results was performed by manual inspection (reading the entire article) and the selection of the works to be inserted in the current review was made by evaluating the contribution to the field. This review summarizes different aspects related to the restoration and conservation of wooden and masonry elements of traditional buildings, including materials used for biocidal interventions, protection against abiotic factors, cleaning and consolidation agents. Finally, a critical discussion regarding the current limitations and future perspectives concludes the review work, envisaging the role of researchers specialized in materials science in the context of cultural heritage conservation.

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Section: Nanotechnological Approachesmentioning

confidence: 99%

“…When developing functional coatings for masonry materials, particular attention should be payed to the possible formation of a coating surface which could seal in potential degradation agents and interfere with normal wet/dry cycle [70,131]. Table 5.…”

Section: Consolidation and Protection Agentsmentioning

confidence: 99%

Selected Aspects Regarding the Restoration/Conservation of Traditional Wood and Masonry Building Materials: A Short Overview of the Last Decade Findings

2020

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“…The biogenic sulfuric acid produced due to the action of sulfate reducing bacteria, reacts with free lime from the concrete and forms gypsum [54]. The formation of more gypsum on the concrete surfaces leads to the formation of ettringite that can initiate the cracking of the concrete [55,56]. More ettringite peaks with high intensity were observed on CC, CF, and CFN specimens as compared with CFNI specimen.…”

Section: Type Of Specimenmentioning

confidence: 99%

Enhanced anti‐microbial activity in green concrete specimens containing fly ash, nanophase modifiers, and corrosion inhibitor

Harilal

Uthaman

George

et al. 2018

Env Prog and Sustain Energy

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This study reports the anti‐bacterial properties of green concrete containing fly ash, nanoparticle modifiers, and a corrosion inhibitor. Four different concrete specimens, namely control concrete containing ordinary portland cement (CC), fly ash concrete containing 40 wt % fly ash (CF), modified fly ash concrete containing nano‐TiO2 and nano‐CaCO3 (1 wt % each) called CFN, and CFN with 2 wt % corrosion inhibitor (CFNI) are used in the present study. Among the four specimens exposed to microbial culture, CFNI showed minimal bacterial attachment and biofilm density, which is further corroborated from Epifluorescence microscopy and 3D confocal laser scanning microscopy. The CFNI specimens showed the least pH reduction among the four, which resulted in the enhanced microbial resistance. The results unambiguously confirm the synergetic effects of nanophase modifiers and NaNO2 based inhibitor in controlling microbial activity in concrete specimens. The results have promising applications in formulating concrete structures that are exposed to harsh environmental conditions. © 2018 American Institute of Chemical Engineers Environ Prog, 38:e13102, 2019

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“…Microbial involvement in deterioration of concrete was first reported by Parker [7], who isolated five strains of bacteria belonging to Thiobacillus sp. from corroded concrete exposed to atmosphere rich of H 2 S in sewer pipes [8]. It was proven that sulphate-reducing bacteria in anoxic water and sewer sediments produce hydrogen sulphide (H 2 S) and carbon dioxide (CO 2 ).…”

Section: Introductionmentioning

confidence: 99%

Calcium Extraction from Blast-Furnace-Slag-Based Mortars in Sulphate Bacterial Medium

2018

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Abstract:Wastewater structures, such as treatment plants or sewers can be easily affected by bio-corrosion influenced by microorganisms living in waste water. The activity of these microbes results in deterioration and can cause the reduction in structural performance of such structures. In order to improve the durability of mortar and concrete, different admixtures are being used and the best impact is observed in cement based materials combined with blast furnace slag. In this study, mortar samples with blast furnace slag were exposed to bacterial sulphate attack for 90 and 180 days. The leaching of calcium ions from the cement matrix and equivalent damaged depths of studied mortar samples were evaluated. The results showed more significant leaching of samples placed in bacterial environment, compared to the samples placed in non-bacterial environment. Similarly, the equivalent damaged depths of mortars were much higher for the bacteria-influenced samples. The slag-based cement mortars did not clearly show improved resistance in bacterial medium in terms of calcium leaching.

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Biogenic deterioration of concrete and its mitigation technologies

Cited by 97 publications

References 123 publications

Selected Aspects Regarding the Restoration/Conservation of Traditional Wood and Masonry Building Materials: A Short Overview of the Last Decade Findings

Selected Aspects Regarding the Restoration/Conservation of Traditional Wood and Masonry Building Materials: A Short Overview of the Last Decade Findings

Enhanced anti‐microbial activity in green concrete specimens containing fly ash, nanophase modifiers, and corrosion inhibitor

Calcium Extraction from Blast-Furnace-Slag-Based Mortars in Sulphate Bacterial Medium

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