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Chloride threshold for different levels of reinforcement corrosion propagation


Grandić, Davor; Bjegović, Dubravka; Serdar, Marijana
Chloride threshold for different levels of reinforcement corrosion propagation // Concrete Durability and Service Life Planning / Kovler, Konstantin (ur.).
Bagneux, France: RILEM, 2009. str. 416-422 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)


Naslov
Chloride threshold for different levels of reinforcement corrosion propagation

Autori
Grandić, Davor ; Bjegović, Dubravka ; Serdar, Marijana

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

Izvornik
Concrete Durability and Service Life Planning / Kovler, Konstantin - Bagneux, France : RILEM, 2009, 416-422

ISBN
978-2-35158-074-5

Skup
2nd International RILEM Workshop

Mjesto i datum
Haifa, Israel, 07.-09.09.2009

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Corrosion propagation; chloride threshold; degradation; corrosion depth

Sažetak
The service life of reinforced concrete structures, when they are deteriorating under chloride induced corrosion, can be divided into initiation and propagation period. The initiation period has been well researched and there are values known as chloride threshold for corrosion onset. On the other side, the propagation period is still difficult to predict with significant accuracy. The aim of the presented research was to investigate the critical chloride concentration necessary to onset different levels of corrosion propagation. Levels of corrosion propagation were determined depending on the thickness of the corroded reinforcement layer. During the research concrete elements were exposed to aggressive environment simulated in salt/humidity/temperature chamber. During the exposure corrosion parameters were measured and their values were assigned to three different levels of corrosion propagation. Chloride profiles were determined by analysis of concrete dust taken from the concrete specimens.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo, Temeljne tehničke znanosti



POVEZANOST RADA


Projekt / tema
082-0822161-2159 - RAZVOJ NOVIH MATERIJALA I SUSTAVA ZAŠTITE BETONSKIH KONSTRUKCIJA (Dubravka Bjegović, )

Ustanove
Građevinski fakultet, Zagreb,
INSTITUT IGH, d.d.,
Građevinski fakultet, Rijeka