Environmental Impact of Geosynthetics in Coastal Protection

Scholz, Philipp; Putna-Nimane, Ieva; Bārda, Ieva; Liepina-Leimane, Ineta; Strode, Evita; Kileso, Alexander; Esiukova, Elena; Chubarenko, Boris; Puriņa, Ingrīda; Simon, Franz‐Georg

doi:10.3390/ma14030634

Cited by 13 publications

(5 citation statements)

References 33 publications

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“…Modern geosynthetic materials are widely used in various structures, including coastal protection, anti-landslide and anti-erosion structures. In damage or prolonged use, geosynthetics during contact with seawater can break off and enter the Baltic Sea, polluting it [4 , 5] . The fragments of geosynthetics are transported along the shore and episodically washed out onshore by the same physical mechanisms which form the bach casts [6] .…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

Geographical information dataset “geosynthetics in coastal protection of the South-East Baltic”

Domnin

Burnashov²

2022

Data in Brief

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The database provides information on coastal protection structures (containing geosynthetic materials) located on the coast of the South-East Baltic, in the Kaliningrad Oblast (Russia) and the Pomeranian Voivodeship (Poland). The fragments of geosynthetics may enter the environment due to partial destruction and operational losses and become a new type of coastal pollution. The database contains the following sections: the tabular data about coastal protecting structures [ProtectingStructures_tab.xlsx]; the point vector geodata about these structures [ProtectingStructures_pnt.kmz] and used geosynthetic materials; the satellite images and photos [ProtectingStructures_images.pdf] demonstrated the general and close-up location of the coastal protecting structures in the satellite image, as well as their seeming. Information was collected during the ERANET-RUS_Plus joint project EI-GEO, ID 212 (RFBR 18-55-76002 ERA_a, BMBF 01DJ18005).

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Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

Geographical information dataset “geosynthetics in coastal protection of the South-East Baltic”

Domnin

Burnashov²

2022

Data in Brief

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“…The durability of polymers used in the production of geosynthetic materials also depends on stabilising additives, thanks to which their degradation can be significantly delayed. The use of stabilising agents, the geosynthetic lifetime is extended 10 or even 100 times, depending on the environment in which it was used (Greenwood et al, 2012;Scholz et al, 2021). Additives, due to their functions in the plastic, can be divided into: -processing additives (processing stabilisers, processing modifiers); -functional additives (property stabilisers, property modifiers).…”

Section: Durability Tests Of Geosynthetic Materials Used In Difficult...mentioning

confidence: 99%

Durability Tests of Geosynthetic Materials Used in Difficult Environmental Conditions

Kiersnowska¹

2023

Acta. Sci. Pol. Architectura

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The article describes the ageing process of high-density polyethylene (HDPE) geogrids under the influence of chemical and environmental factors. Research on accelerated ageing of a uniaxial HDPE geogrid incubated in a water solution for a period of 12 months is presented. Three temperatures (25°, 45° and 75°C) were selected for the accelerated ageing tests in aqueous solutions simulating the conditions at a municipal waste landfill. Changes were observed using differential scanning calorimetry (DSC), and correlations with the mechanical properties of the aged geogrid were checked. No significant effect of the loss of antioxidant in the material on the mechanical properties of the uniaxial geogrid was observed. The tests made it possible to determine the mechanical properties, such as tensile strength and deformability of the geogrid – which are extremely important in the analysis of slope stability.

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“…In an earlier publication, the long-term performance of geotextiles was investigated after accelerated thermo-oxidative aging in an autoclave at elevated temperatures and oxygen pressure. The decline in material properties was assessed by the measurement of the tensile strength [15]. The service lifetime (half-life prediction) was estimated to be more than 300 years there.…”

Section: Introductionmentioning

confidence: 99%

“…An overview of the performed aging experiment is given in Table 1. The procedure is described in detail in an earlier publication [15].…”

mentioning

confidence: 99%

Investigation on the Durability of a Polypropylene Geotextile under Artificial Aging Scenarios

Scholz,

Falkenhagen,

Wachtendorf

et al. 2024

Sustainability

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Geosynthetics are widely used in various civil engineering applications, such as geotextiles in coastal protection, and display a sustainable alternative to natural mineral materials. However, the full benefits of using geosynthetics can only be gained with a long service lifetime of the products. With the use of added stabilizers to the polymers, service lifetimes can be achieved in the range of 100 years. Therefore, accelerated aging methods are needed for the assessment of the long-term performance of geotextiles. In the present study, the behavior of geosynthetic materials made of polypropylene was investigated under artificial aging conditions involving elevated temperatures ranging from 30 to 80 °C, increased oxygen pressures ranging from 10 to 50 bar in water-filled autoclaves, and UV irradiation under atmospheric conditions. ATR-IR spectroscopy was employed to detect the increase in the carbonyl index over various aging durations, indicating the oxidative degradation of the geotextile. The most pronounced increase was observed in the case of aging through UV irradiation, followed by thermal aging. Elevated pressure, on the other hand, had a lower impact on oxidation. High-temperature size exclusion chromatography was utilized to follow the reduction in molar mass under different degradation conditions, and the results were consistent with those obtained from ATR-IR spectroscopy. In polyolefins such as polypropylene, Hindered Amine Stabilizers (HAS) are used to suppress oxidation caused by UV radiation. The quantitative analysis of HAS was carried out using a UV/Vis method and HPLC. The degradation of UV stabilizers during the aging of geotextiles is responsible for the oxidation and the reduction in the molar mass of polypropylene. From the results, it can be concluded that applications of PP geotextile without soil or sand cover might cause the risk of the formation of microplastic particles. Material selection, design, and maintenance of the construction must follow best practices, including the system’s removal or replacement at end-of-life. Otherwise, a sustainable use of geotextiles in civil engineering is not possible.

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Environmental Impact of Geosynthetics in Coastal Protection

Cited by 13 publications

References 33 publications

Geographical information dataset “geosynthetics in coastal protection of the South-East Baltic”

Geographical information dataset “geosynthetics in coastal protection of the South-East Baltic”

Durability Tests of Geosynthetic Materials Used in Difficult Environmental Conditions

Investigation on the Durability of a Polypropylene Geotextile under Artificial Aging Scenarios

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