Naslov
Application of non-destructive testing in assessment and service life prediction of concrete bridges

Autori
Kušter Marić, Marija ; Mandić Ivanković, Ana ; Vlašić, Anđelko ; Bleiziffer, Jelena ; Srbić ; Mladen ; Skokandić, Dominik

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the International Conference on Sustainable Materials, Systems and Structures (SMSS2019) - Challenges in Design and Management of Structures / Mandić Ivanković, Ana ; Kušter Marić, Marija ; Strauss, Alferd ; Kišiček, Tomislav - Pariz : RILEM Publications SARL, 2019, 200-207

ISBN
978-2-35158-226-8

Skup
International Conference on Sustainable Materials, Systems and Structures (SMSS2019)

Mjesto i datum
Rovinj, Hrvatska, 18.03.2019. - 22.03.2019

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
bridge, corrosion, crack, non-destructive testing

Sažetak
Existing bridge maintenance policy, where bridge assessment is based on results of visual inspection is not sufficient since reinforcement corrosion, as the main degradation process of concrete bridges, cannot be timely detected. Hence, new approach, where visual inspection is combined with simple, rapid and cost-effective non-destructive testing (NDT) is presented and demonstrated on the case study: Adriatic Bridge across Sava River in Zagreb. NDT on the bridges includes crack detection, determination of geometry and crack cause identification, estimation of strength and dynamic elastic modulus of concrete, rebar detection, measurements of rebar diameter, concrete cover, electrical resistivity of concrete and half-cell potential. Application of NDT increases the objectivity of the visual inspection results and allows detection of invisible defects, what was confirmed by additional destructive testing on the case study. Utilization of results obtained by visual inspection and NDTs in numerical models for service life prediction of structure is discussed, highlighting the importance of inclusion of performance indicators variation due to non-uniformity of concrete quality (local cracks, damage).

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo

POVEZANOST RADA