Impacts from concrete microstructure and surface on the settlement of sessile organisms affecting chloride attack

Chlayon, Tom; Iwanami, Mitsuyasu; Chijiwa, Nobuhiro

doi:10.1016/j.conbuildmat.2019.117863

Cited by 14 publications

(7 citation statements)

References 54 publications

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“…For instance, Ly et al [ 19 ] produced AR by 3D printing using geopolymer, cement and recycled sand to assess micro- and macro-organisms and the durability after 1, 3 and 6 months, and they found that cement was better than geopolymer binders in 3D printed concrete for AR. Chlayon et al [ 20 ] investigated combined protective and negative effects of calcareous-based sessile invertebrates and root-spreading botanic life forms, and they found that surface treatment exhibited decent quantities of barnacle and oyster while restricting the amount of algae settled. Recently, porous concrete was used to prepare AR.…”

Section: Introductionmentioning

confidence: 99%

Impacts from Waste Oyster Shell on the Durability and Biological Attachment of Recycled Aggregate Porous Concrete for Artificial Reef

Kong

Guo

et al. 2022

Materials

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Poor biological attachment of artificial reef (AR) prepared by the recycled aggregate limit the application in the area of marine engineering. In this study, the waste oyster shell (WOS) was used as raw materials to prepare the recycled aggregate porous concrete (RAPC), the compressive strength, split tensile strength, chloride penetration resistance, freezing-thawing resistance, low temperature resistance, and the biological attachment were tested, aiming to improve the biological attachment and decrease carbon dioxide emission. The experiment results demonstrate that the use of WOS can decrease the compressive and split tensile strength, but the effect of designed porous structure on the mechanical strength is higher than that of WOS. To ensure the durability of RAPC, the contents of WOS should not exceed 20%. Additionally, the addition of WOS and designed porous structure are beneficial to biological attachment. However, the porous structure of RAPC only improves biological attachment in the short term, and the reverse phenomenon is true in the long term. As the partial replacement of cement with WOS is 40%, the total carbon dioxide emission decreases by about 52%. In conclusion, the use of WOS in the RAPC is an eco-friendly method in the artificial reef (AR) with improved ecological attachment and reduced carbon dioxide emission.

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Section: Introductionmentioning

confidence: 99%

Impacts from Waste Oyster Shell on the Durability and Biological Attachment of Recycled Aggregate Porous Concrete for Artificial Reef

Kong

Guo

et al. 2022

Materials

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“…In this way, the biological colonization of concrete could provide structures with additional protection against chemical or even mechanical degradation, through the effects of the physical barrier offered by living organisms colonizing the surface of cementitious material (Ariño et al ., 1995; Bartoli et al ., 2014; Carter and Viles, 2003; Chlayon, Iwanami, and Chijiwa, 2020; Mottershead and Lucas, 2000; Viles and Cutler, 2012). According to the literature, a beneficial biofilm (bioprotection) can protect the material by reducing the quantity of water and nutrients available, synthesizing antimicrobial agents (thus inhibiting the growth of other microorganisms having a harmful effect on cementitious materials) or forming a protective layer of synthesized exopolysaccharides (Chlayon, Iwanami, and Chijiwa, 2018; Soleimani, Ormeci, and Isgor, 2013).…”

Section: Results: Biological Colonization and The Durability Of Concretementioning

confidence: 99%

“…Despite the large number of concrete structures present in the waters of seas, rivers and lakes, studies concerning the colonization of cementitious materials by bacteria in these environments remain relatively rare (Chlayon, Iwanami, and Chijiwa, 2020;Cooke et al, 2020;Costa and Appleton, 2001;Rica et al, 2016;Scheres and Sch üttrumpf, 2019;Sosa et al, 2011;Souche et al, 2016).…”

Section: Bacteriamentioning

confidence: 99%

How to Improve the Bioreceptivity of Concrete Infrastructure Used in Marine Ecosystems? Literature Review for Mechanisms, Key Factors, and Colonization Effects

Hayek

Salgues

Souche

et al. 2023

Journal of Coastal Research

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Hayek, M.; Salgues, M.; Souche, J.-C.; De Weerdt, K., and Pioch, S., 2023. How to improve the bioreceptivity of concrete infrastructure used in marine ecosystems? Literature review for mechanisms, key factors, and colonization effects. Journal of Coastal Research, 39(3), 553–568. Charlotte (North Carolina), ISSN 0749-0208.With 39,400 km2 of coastal and marine areas artificialized and an increasing demand due to the growing global population—9 billion by 2050—it has become necessary to find ways to mitigate futures constructions impacts on biodiversity. This study explores how civil engineering can take further technical measures to enhance marine biodiversity, in a real and valuable “win-win” strategy. The global aim is to integrate eco-engineering practices within coastal projects and include ecological targets (e.g., the diversity and speed of biological colonization) early, at the project design stage, with the same level efforts for technical, social, and economic studies. Concrete is the most useful material for coastal infrastructure construction. Therefore, enhance its positive impact on colonization that is by far one of the key points for developers and coastal managers. To this end, the latest research regarding the bioreceptivity of concrete is reviewed, focusing on the characteristics of the marine environment that affect the colonization of concrete and the organisms involved. From this base of publications, the intrinsic and environmental parameters that can influence the intrinsic and the extrinsic bioreceptivity of concrete have been updated, specifically operating the link with the mechanisms leading to the colonization of concrete and biofilm formation, which hasn't been done before. Based on the persistence of their significant effect (after 78 days of immersion in seawater), the intrinsic parameters that support greater biocolonization are classified from more to less effective in the following order: surface roughness (190%) > chemical composition (slag cement instead Portland cement) (136%) > chemical composition (presence of formwork oil) (106%). Lastly, both the ecological effect and the positive and negative effects of biofilm formation on the durability of concrete were analysed to provide clear and operational results for future concrete coastal construction implementation for decision makers.

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“…The introduction of a new mineral additive for ecological marine concrete by EConcrete™ raised concerns regarding the influence of the marine biota's adherence to the concrete on the durability of the RCS. Some former works investigated the influence of marine sessile organisms on parameters of concrete durability [12][13][14][15][16][17]. It was shown that sessile carbonate-depositing organisms create a dense carbonate coverage on the concrete surface in the spots where they attach to the surface.…”

Section: Introductionmentioning

confidence: 99%

Six-year-old Ecological Concrete in a Marine Environment: a Case Study

Kenny¹,

Rozovsky²

2022

Preprint

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The durability of ecological concrete in a marine environment was studied. Specimens of a six-year-old submerged ecological concrete from a breakwater located in the East Mediterranean sea were analyzed for their biological carbonate deposition cover, chloride effective diffusion, carbonation, and mineralogy. About 57% of the surface was found to be covered by biogenic-deposited carbonates. The effective chloride diffusion coefficient and the carbonation rate were found to be reduced proportionally to the biogenic-carbonate cover. Most of the aluminates were found in non-crystalline minerals. No evidence of a sulfate attack was found.

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Impacts from concrete microstructure and surface on the settlement of sessile organisms affecting chloride attack

Cited by 14 publications

References 54 publications

Impacts from Waste Oyster Shell on the Durability and Biological Attachment of Recycled Aggregate Porous Concrete for Artificial Reef

Impacts from Waste Oyster Shell on the Durability and Biological Attachment of Recycled Aggregate Porous Concrete for Artificial Reef

How to Improve the Bioreceptivity of Concrete Infrastructure Used in Marine Ecosystems? Literature Review for Mechanisms, Key Factors, and Colonization Effects

Six-year-old Ecological Concrete in a Marine Environment: a Case Study

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