Service life prediction under chloride-induced corrosion based on rapid chloride penetration test

dc.contributor.authorKarunaratne, PT
dc.contributor.authorWeerasinghe, TGPL
dc.contributor.authorNanayakkara, SMA
dc.contributor.editorMallikarachchi, C
dc.date.accessioned2023-01-26T03:53:49Z
dc.date.available2023-01-26T03:53:49Z
dc.date.issued2022-12
dc.description.abstractConcrete is a highly heterogeneous composite material that is widely used in the construction industry. At present with the development of new constituent materials, the durability of concrete is the key factor in the service life predictions of structures. The durability of concrete can be defined as its ability to resist against any sort of deterioration which depends on the interaction with the service environment. This project mainly focuses on chloride-induced corrosion and its effects on durability. Rapid Chloride Penetration Test (RCPT) is a rapid indication of resistance for the penetration of chloride ions which depends on the pore structure and pore solution characteristics. This project examines the effect of fly ash content and curing period on RCPT. Results have shown that there is a significant effect of those two factors on RCPT. In addition, relevant compressive strength gain over a period of 28 days is also discussed. Once the RCPT was completed, the chloride profile was obtained by collecting concrete powder samples at different depths. Obtained chloride profiles were fitted into a nonlinear regression analysis, and chloride penetration depths were calculated. Thereafter, the chloride diffusion coefficient was determined from Fick’s second law using chloride profile and chloride penetration depth. It was observed that the RCPT results can be directly used to determine the chloride diffusion coefficient based on the expected chloride concentration as those two parameters show a linear relationship. Finally, a performance-based design approach was proposed to correlate RCPT values with Fib Model code 2010, in order to predict the service life of corrosion affected - uncracked concrete.en_US
dc.identifier.citation******en_US
dc.identifier.conferenceCivil Engineering Research Symposium 2021en_US
dc.identifier.departmentDepartment of Civil Engineeringen_US
dc.identifier.emailpunmadara7@gmail.comen_US
dc.identifier.facultyEngineeringen_US
dc.identifier.pgnospp. 29-30en_US
dc.identifier.placeKatubeddaen_US
dc.identifier.proceedingProceedings of the Civil Engineering Research Symposium 2022en_US
dc.identifier.urihttp://dl.lib.uom.lk/handle/123/20289
dc.identifier.year2022en_US
dc.language.isoenen_US
dc.publisherDepartment of Civil Engineering, Faculty of Engineering, University of Moratuwaen_US
dc.subjectConcrete Durabilityen_US
dc.subjectChloride Penetrationen_US
dc.subjectRapid Chloride Penetration Testen_US
dc.subjectService Life Predictionen_US
dc.titleService life prediction under chloride-induced corrosion based on rapid chloride penetration testen_US
dc.typeConference-Abstracten_US

Files

Original bundle

Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
SERVICE LIFE PREDICTION UNDER CHLORIDE-INDUCED CORROSION.pdf
Size:
230.86 KB
Format:
Adobe Portable Document Format
Description:

License bundle

Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:

Collections