Damaged Concrete Viaduct in an Italian Highway: Concrete Characterization and Possible Strengthening Techniques by FRP Applications in Comparison

The "Fornello" viaduct in the Italian Orte-Ravenna highway (E45) is seriously damaged. In this paper, the concrete of the reinforced slab has been widely characterized to evaluate the level of damage and to identify the causes of degradation. No-destructive tests, as those based on ultraso...

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Bibliographic Details
Published inIOP conference series. Materials Science and Engineering Vol. 245; no. 3; pp. 32069 - 32078
Main Authors Tittarelli, Francesca, Letizia Ruello, Maria, Capuani, Domenico, Aprile, Alessandra
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.10.2017
Subjects
Bridge decks
Cement paste
Concrete bridges
Concrete slabs
Damage detection
Destructive testing
Freeze thaw cycles
Freeze-thaw durability
Strengthening
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Summary:The "Fornello" viaduct in the Italian Orte-Ravenna highway (E45) is seriously damaged. In this paper, the concrete of the reinforced slab has been widely characterized to evaluate the level of damage and to identify the causes of degradation. No-destructive tests, as those based on ultrasonic waves, as well as chemical, physical and mechanical destructive tests have been carried out on specimens drawn from deteriorated and not deteriorated zones of the R/C bridge decks. Into the slab thickness, the concentration distribution of main anions has been quantified by ion chromatography. Porosimetry tests have been carried out to detect the resistance to freeze-thaw cycles of cement paste. Possible strengthening techniques by FRP applications have been compared.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/245/3/032069