{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,22]],"date-time":"2026-04-22T15:32:55Z","timestamp":1776871975424,"version":"3.51.2"},"reference-count":36,"publisher":"MDPI AG","issue":"22","license":[{"start":{"date-parts":[[2022,11,18]],"date-time":"2022-11-18T00:00:00Z","timestamp":1668729600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001871","name":"FCT\/MCTES (PIDDAC)","doi-asserted-by":"publisher","award":["UIDB\/04708\/2020"],"award-info":[{"award-number":["UIDB\/04708\/2020"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>Like other plastic materials, geosynthetics can undergo changes in their properties due to weathering. These changes must be known and, if necessary, duly accounted for in the design phase. This work evaluates the resistance of a nonwoven polypropylene geotextile to weathering, both in the field (under natural degradation conditions) and in the laboratory (under accelerated degradation conditions). The damage experienced by the geotextile in the field weathering tests was evaluated by monitoring changes in its physical (mass per unit area and thickness), mechanical (tensile, tearing and puncture behaviour) and hydraulic (water permeability normal to the plane) properties. Microscopic damage was assessed by scanning electron microscopy. In the laboratory weathering tests, only the tensile behaviour of the geotextile was monitored. The results showed that all geotextile properties were affected by weathering. The mechanical strength of the geotextile decreased in the field weathering tests. Microscopic transverse cracks were found in the weathered polypropylene fibres, which may explain the reduction in mechanical strength. The accumulation of dirt on the nonwoven structure altered the physical and hydraulic properties of the geotextile. Comparing the field and laboratory weathering tests, the reduction in tensile strength found after 24 months outdoors (roughly 30%) was very similar to that observed after 4000 h in the laboratory. This relationship may not be valid for other geotextiles or other exposure locations.<\/jats:p>","DOI":"10.3390\/ma15228216","type":"journal-article","created":{"date-parts":[[2022,11,21]],"date-time":"2022-11-21T04:33:32Z","timestamp":1669005212000},"page":"8216","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Weathering of a Nonwoven Polypropylene Geotextile: Field vs. Laboratory Exposure"],"prefix":"10.3390","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0552-4076","authenticated-orcid":false,"given":"Jos\u00e9 Ricardo","family":"Carneiro","sequence":"first","affiliation":[{"name":"Construct-Geo, Department of Civil Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2390-4825","authenticated-orcid":false,"given":"Maria de Lurdes","family":"Lopes","sequence":"additional","affiliation":[{"name":"Construct-Geo, Department of Civil Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2022,11,18]]},"reference":[{"key":"ref_1","unstructured":"Shukla, S.K. (2002). Fundamentals of geosynthetics. Geosynthetics and Their Applications, Thomas Telford. [1st ed.]."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"111","DOI":"10.1016\/S0266-1144(02)00068-7","article-title":"Assessing the photo-degradation of geosynthetics by outdoor exposure and laboratory weatherometer","volume":"21","author":"Suits","year":"2003","journal-title":"Geotext. Geomembr."},{"key":"ref_3","unstructured":"Greenwood, J.H., Schroeder, H.F., and Voskamp, V. (2016). Durability of Geosynthetics, CRC Press. [2nd ed.]."},{"key":"ref_4","unstructured":"Koerner, R.M. (2016). Geotextile durability. Geotextiles: From Design to Applications, Woodhead Publishing. [1st ed.]."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"163","DOI":"10.1023\/A:1021148205366","article-title":"Polymer weathering","volume":"10","author":"Feldman","year":"2002","journal-title":"J. Polym. Environ."},{"key":"ref_6","unstructured":"Zweifel, H., Maier, R., and Schiller, M. (2009). Plastic Additives Handbook, Hanser Publications. [6th ed.]."},{"key":"ref_7","unstructured":"Maier, C., and Calafut, T. (1998). Polypropylene: The Definitive User\u2019s Guide and Databook, Plastics Design Library. [1st ed.]."},{"key":"ref_8","unstructured":"Wright, D.C. (2001). Failure of Polymer Products Due to Photo-Oxidation, iSmithers Rapra Publishing."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"241","DOI":"10.1515\/SECM.2011.047","article-title":"Accelerated weathering of polypropylene geotextiles","volume":"18","author":"Carneiro","year":"2011","journal-title":"Sci. Eng. Compos. Mater."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"544","DOI":"10.1680\/jgein.17.00020","article-title":"Natural weathering of polypropylene geotextiles treated with different chemical stabilisers","volume":"24","author":"Carneiro","year":"2017","journal-title":"Geosynth. Int."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"877","DOI":"10.1016\/j.conbuildmat.2018.01.067","article-title":"Degradation of polypropylene geotextiles with different chemical stabilisations in marine environments","volume":"165","author":"Carneiro","year":"2018","journal-title":"Constr. Build. Mater."},{"key":"ref_12","unstructured":"EN 12224 (2000). Geotextiles and Geotextile-Related Products\u2014Determination of the Resistance to Weathering, European Committee for Standardization."},{"key":"ref_13","unstructured":"ASTM D4355 (2021). Standard Test Method for Deterioration of Geotextiles by Exposure to Light, Moisture, and Heat in a Xenon Arc-Type Apparatus, American Society for Testing and Materials International."},{"key":"ref_14","unstructured":"ASTM D5970 (2002). Standard Practice for Deterioration of Geotextiles from Outdoor Exposure, American Society for Testing and Materials International."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"69","DOI":"10.1007\/s40891-021-00314-6","article-title":"Evaluating the degradation of a nonwoven polypropylene geotextile exposed to natural weathering for 3 years","volume":"7","author":"Pedroso","year":"2021","journal-title":"Int. J. of Geosynth. Ground Eng."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"23","DOI":"10.1680\/gein.7.0164","article-title":"Comparison of geotextile durability to outdoor exposure conditions in the Peruvian Andes and the southeastern USA","volume":"7","author":"Grubb","year":"2000","journal-title":"Geosynth. Int."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"210","DOI":"10.1680\/gein.2006.13.5.210","article-title":"Weathering properties of geotextiles in ocean environments","volume":"13","author":"Hsieh","year":"2006","journal-title":"Geosynth. Int."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"213","DOI":"10.1680\/jgein.16.00029","article-title":"Degradation of polypropylene woven geotextile: Tensile creep and weathering","volume":"24","author":"Castro","year":"2017","journal-title":"Geosynth. Int."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"198","DOI":"10.1680\/jgein.16.00026","article-title":"Lifetime prediction of exposed geotextiles and geomembranes","volume":"24","author":"Koerner","year":"2017","journal-title":"Geosynth. Int."},{"key":"ref_20","doi-asserted-by":"crossref","unstructured":"Valentin, C.A., Kobelnik, M., Franco, Y.B., Lavoie, F.L., da Silva, J.L., and da Luz, M.P. (2021). Study of the ultraviolet effect and thermal analysis on polypropylene nonwoven geotextile. Materials, 14.","DOI":"10.3390\/ma14051080"},{"key":"ref_21","doi-asserted-by":"crossref","unstructured":"Franco, Y.B., Valentin, C.A., Kobelnik, M., da Silva, J.L., Ribeiro, C.A., and da Luz, M.P. (2022). Accelerated aging ultraviolet of a PET nonwoven geotextile and thermoanalytical evaluation. Materials, 15.","DOI":"10.3390\/ma15124157"},{"key":"ref_22","unstructured":"Valente, I.M., Carneiro, J.R., Almeida, P.J., and Lopes, M.L. (2010, January 23\u201327). Chemical studies about the durability of polypropylene geotextiles. Proceedings of the 9th International Conference on Geosynthetics, Guaruj\u00e1, Brazil."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"617","DOI":"10.1080\/00032711003783093","article-title":"Determination of Chimassorb 944 in polypropylene geotextiles by HPLC-UV","volume":"44","author":"Valente","year":"2011","journal-title":"Anal. Lett."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"196","DOI":"10.1017\/S1431927618000430","article-title":"Evaluation of the resistance of a polypropylene geotextile against ultraviolet radiation","volume":"25","author":"Carneiro","year":"2019","journal-title":"Microsc. Microanal."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"577","DOI":"10.1016\/j.geotexmem.2019.02.002","article-title":"Spectrophotometry as a tool for characterizing durability of woven geotextiles","volume":"47","author":"Filho","year":"2019","journal-title":"Geotext. Geomembr."},{"key":"ref_26","unstructured":"EN ISO 9862 (2005). Geosynthetics\u2014Sampling and Preparation of Test-Specimens, European Committee for Standardization."},{"key":"ref_27","unstructured":"EN 13362 (2013). Geosynthetic Barriers\u2014Characteristics Required for Use in the Construction of Canals, European Committee for Standardization."},{"key":"ref_28","unstructured":"EN 29073-3 (1992). Textiles\u2014Test Methods for Nonwovens\u2014Part 3: Determination of Tensile Strength and Elongation, European Committee for Standardization."},{"key":"ref_29","unstructured":"EN ISO 9864 (2005). Geosynthetics\u2014Test Method for the Determination of Mass per Unit Area of Geotextiles and Geotextile-Related Products, European Committee for Standardization."},{"key":"ref_30","unstructured":"EN ISO 9863-1 (2016). Geosynthetics\u2014Determination of Thickness at Specified Pressures\u2014Part 1: Single Layers, European Committee for Standardization."},{"key":"ref_31","unstructured":"EN ISO 10319 (2015). Geosynthetics\u2014Wide-Width Tensile Test, European Committee for Standardization."},{"key":"ref_32","unstructured":"ASTM D4533 (2002). Standard Test Method for Trapezoid Tearing Strength of Geotextiles, American Society for Testing and Materials International."},{"key":"ref_33","unstructured":"EN ISO 12236 (2006). Geosynthetics\u2014Static Puncture Test (CBR Test), European Committee for Standardization."},{"key":"ref_34","unstructured":"EN ISO 11058 (2019). Geotextiles and Geotextile-Related Products\u2014Determination of Water Permeability Characteristics Normal to the Plane, European Committee for Standardization."},{"key":"ref_35","unstructured":"Cazzuffi, D., Venesia, S., Rinaldi, M., and Zocca, A. (1986, January 7\u201311). The mechanical properties of geotextiles: Italian standards and interlaboratory test comparison. Proceedings of the 3rd International Conference on Geotextiles, Vienna, Austria."},{"key":"ref_36","unstructured":"ISO\/TR 20432 (2007). Guidelines for the Determination of the Long-Term Strength of Geosynthetics for Soil Reinforcement, International Organization for Standardization."}],"container-title":["Materials"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1996-1944\/15\/22\/8216\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T01:21:38Z","timestamp":1760145698000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1996-1944\/15\/22\/8216"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,11,18]]},"references-count":36,"journal-issue":{"issue":"22","published-online":{"date-parts":[[2022,11]]}},"alternative-id":["ma15228216"],"URL":"https:\/\/doi.org\/10.3390\/ma15228216","relation":{},"ISSN":["1996-1944"],"issn-type":[{"value":"1996-1944","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,11,18]]}}}