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Long-Term Chemical Resistance of Ecological Epoxy Polymer Composites

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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Resin concretes belong to a small group of building materials which, besides high strength parameters, also have a very good chemical resistance. This is confirmed by the studies carried out by various research institutions around the world. However, there is little data on the behaviour of composite resin exposed to corrosive solutions for an extended period of time. This article presents the results of the research on weight changes in samples of epoxy mortar modified with poly(ethylene terephthalate) glycolysates, immersed for 5 years in four different aggressive media i.e. 10% aqueous solutions of sulphuric and nitric acids, sodium hydroxide, and sodium chloride. The actual average weight changes obtained were compared with the data calculated on the basis of the regression functions fitted to the data recorded after 3.5 years of exposure. This allowed verification of the model selection correctness and evaluation of the effectiveness of the fitted regression curve. In the case of aqueous sodium hydroxide and sodium chloride solutions, it can be assumed that the logarithmic model describes weight changes well. It was observed that the weight of the samples exposed to NaCl solutions and NaOH stabilizes over prolonged monitoring time and reaches a plateau. However, the weight changes in mortar samples immersed for 5 years in aqueous solution of sulphuric and nitric acids quite significantly differ from the data calculated on the basis of the trend line fitted to the results of the tests carried out after 3.5 years of exposure. It seems that the better solution in this case is the selection of an exponential model. In addition, placing the logarithmic trendlines for all corrosive media together on a chart allows to note which of the solutions is the most aggressive. It was found that after 5 years of immersion in aqueous solutions of acids, mortar samples became brittle, and the observation of their fractures confirmed the weakness of the connection on the resin/aggregate phase boundary. Changes in the appearance of the samples were also noted, namely the surface of samples submerged in a solution of nitric acid strongly yellowed, and those treated with sulphuric acid were tarnished.
Rocznik
Strony
204--212
Opis fizyczny
Bibliogr. 25 poz., tab., rys.
Twórcy
autor
  • Department of Building Engineering, Rzeszow University of Technology, Poznańska 2 St., 35-959 Rzeszów, Poland
autor
  • Department of Building Engineering, Rzeszow University of Technology, Poznańska 2 St., 35-959 Rzeszów, Poland
Bibliografia
  • 1. Amaro A.M., Reis P.N.B., Neto M.A., Louro C. 2013. Effects of alkaline and acid solutions on glass/epoxy composites. Polymer Degradation Stability, 98, 853–862.
  • 2. Bełzowski A. 2004. Rules for the selection of structural safety factors from composite materials. Composites, 4, 396–403 (in Polish).
  • 3. Czarnecki L. 2010. Polymer Concretes. Cement Lime Concrete, 2, 63–85.
  • 4. Czarnecki L., Sokołowska J.J. 2015. Material model and revealing the truth. Bulletin of the Polish Academy of Sciences. Technical Sciences, 63, 7–14.
  • 5. Dębska B., Lichołai L. 2016. The effect of the type of curing agent on selected properties of epoxy mortar modified with PET glycolisate. Construction and Building Materials, 124, 11–19.
  • 6. Feng P., Wang J., Wang Y., Loughery D., Niu D. 2014. Effects of corrosive environments on properties of pultruded GFRP plates. Composite Part B., 67, 427–433.
  • 7. Garbacz A., Sokołowska J.J. 2013. Concrete-like polymer composites with fly ashes – Comparative study. Construction and Building Materials, 38, 689–699.
  • 8. Garcia-Espinel J.D., Castro-Fresno D., Parbole Gayo P., Ballester-Muñoz F. 2015. Effects of sea water environment on glass fiber reinforced plastic materials used for marine civil engineering constructions. Materials Design, 66, 46–50.
  • 9. Ghorbel E., Haidar M., 2016. Durability to Chemical Attack by Acids of Epoxy Microconcretes by Comparison to Cementitious Ones. Advances of Civil Engineering, 1–15.
  • 10. Gizelter R. 2014. Buildings Materials and Structures Based on Advanced Polymer Nanostructured Matrix. International Letters of Chemistry, Physics and Astronomy, 9, 103–114.
  • 11. Golestaneh M., Najafpour G., Amini G., Beygi M. 2013. Evaluation of Chemical Resistance of Polymer Concrete in Corrosive Environments. Iranica Journal of Energy and Environment 4 {(3) Geo-hazards and Civil Engineering)}, 304–310.
  • 12. Gorninski J.P., Dal Molin D.C., Kazmierczak C.S. 2007. Strength degradation of polymer concrete in acidic environments. Cement and Concrete Composites, 29, 637–645.
  • 13. Griffiths R., Ball A. 2000. An assessment of the properties and degradation behaviour of glass-fibre-reinforced polyester polymer concrete. Composites Sciences Technology, 60, 2747–2753.
  • 14. Lichołai L., Dębska B. 2014. The multidimensional response function exemplified by epoxy mortars: looking for the global extreme. Archives of Civil and Mechanical Engineering, 14, 466–475.
  • 15. Lokuge W., Aravinthan T. 2013. Effect of fly ash on the behaviour of polymer concrete with different types of resin. Materials Design, 51, 175–181.
  • 16. Lu T., Solis-Ramos E., Yi Y-B., Kumosa M. 2016. Synergistic environmental degradation of glass reinforced polymer composites. Polymer Degradation Stability, 131, 1–8.
  • 17. Mortas N., Erb O., Reis P.N.B., Ferreira J.A.M. 2014. Effect of corrosive solutions on composites laminates subjected to low velocity impact loading. Composite Structures, 108, 205–211.
  • 18. Rahimi R.R., Iman M.N., Hamed A., Samira H.T. 2016. Sustainable approach for recycling waste tire rubber and polyethylene terephthalate (PET) to produce green concrete with resistance against sulfuric acid attack. Journal of Cleaner Production, 126, 166–177.
  • 19. Rahman Md. M., Akhtarul Islam Md., Tamez Uddin Md. 2015. Excellent durability of epoxy modified mortars in corrosive environments. Journal of Polymer Engineering, 36, 79–85.
  • 20. Reis J.M.L. 2010. Fracture assessment of polimer concrete in chemical degradation solutions. Construction and Building Materials, 24, 1708–1712.
  • 21. Reis J.M.L. 2009. Mechanical characterization of polymer mortars exposed to degradation solutions. Construction and Building Materials, 23, 3328–3331.
  • 22. Ribeiro M.C.S., Tavares C.M.L., Ferreira A.J.M. 2002. Chemical resistance of epoxy and polyester polymer concrete to acids and salts. Journal of Polymer Engineering, 22, 27–44.
  • 23. Stamenović M., Putić S., Rakin M., Medjo B., Čikara D. 2011. Effect of alkaline and acidic solutions on the tensile properties of glass–polyester pipes. Materials Design, 32, 2456–2461.
  • 24. Suihkonen R., Lindgren M., Siljander S., Sarlin E., Vuorinen J. 2016. Erosion wear of vinylester matrix composites in aqueous and acidic environments at elevated temperatures. Wear, 358–359, 7–16.
  • 25. Yan L., Chouw N., Jayaraman K. 2015. Effect of UV and water spraying on the mechanical properties of flax fabric reinforced polymer composites used for civil engineering applications. Materials Design, 71, 17–25.
Uwagi
PL
Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-1943b73f-6746-4064-a98c-2e713daae2b0
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