Naslov
Investigation of geotextile resistance to the environment

Autori
Borràs Exposito, Jaume

Vrsta, podvrsta i kategorija rada
Ocjenski radovi, diplomski rad, preddiplomski

Fakultet
Tekstilno-tehnološki fakultet

Mjesto
Zagreb

Datum
08.07

Godina
2015

Stranica
90

Mentor
Somogyi Škoc, Maja

Neposredni voditelj
Assoc. Prof. Mònica Ardanuy, PhD (at UPC) – mentor from Spain

Ključne riječi
geotextiles; resistance to microbiological attack; resistance to oxidation; resistance to liquids; physical-mechanical properties; specific amount of surface charge

Sažetak
The purpose of thesis was to provide an investigation of nonwoven geotextiles resistance to the environment (microbiological attack by soil burial, oxidation, liquids (acids & alkalis)). The samples of the geotextiles fabrics used for this investigation by the Croatian producer company Regeneracija d.o.o., Zabok were donated. Investigation and methods used in thesis were according to the International Standard Organization (ISO) and European Norme (EN) for geotextiles: strip method, static puncture test (CBR test), determination of specific amount of surface charge. Investigation were divided in three parts: -the resistance to microbiological attack by soil burial (EN 12 225), - the resistance to the oxidation (ISO 13438) and the resistance to liquids (acids and alkalis, EN 14030). From the results it can be concluded: - studies specifically related to durability and soil burial of geotextiles are limited, - little fields research has been conducted on the degradation of geotextiles in soil burial applications, - geotextiles used in civil engineering applications are expected to carry out one or more functions for a minimum expected time (design life), - any application may require one or more functions, - assessment of the durability of an application using geotextiles requires a study, - with this thesis – study tendency was to obtain the knowledge about resistance (microbiological, liquids, oxidation) of two different most used geotextile samples through physical-mechanical and absorption properties, - microbiological attack by soil burial shown that PES nonwoven has better physical-mechanical and absorption properties than PE nonwoven - Used nonwoven, polyester and polyethylene initially have good resistance to liquids – acid and alkali, resulting only in cationic character – higher surface charge, - With the accelerated test for resistance to oxidation it is obvious that PES nonwoven has great resistance to oxidation than PE one. PE nonwoven significantly loss tensile strength and elongation. -  Therefore, it is recommended that PE nonwoven cannot be used for applications in presence of oxygen.

Izvorni jezik
Engleski

Znanstvena područja
Tekstilna tehnologija, Temeljne tehničke znanosti

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