Durability of Ring-Road II asphalt pavement - Phase I report on forensic analysis of Ring-Road II pavement distresses

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorPellinen, Terhi
dc.contributor.authorMakowska, Michalina
dc.contributor.authorOlmos, Pablo
dc.contributor.authorLaukkanen, Olli-Ville
dc.contributor.departmentYhdyskunta- ja ympäristötekniikan laitosfi
dc.contributor.departmentDepartment of Civil and Environmental Engineeringen
dc.contributor.labHighway Engineeringen
dc.contributor.schoolInsinööritieteiden korkeakoulufi
dc.contributor.schoolSchool of Engineeringen
dc.date.accessioned2013-08-13T09:00:12Z
dc.date.available2013-08-13T09:00:12Z
dc.date.issued2013
dc.description.abstractThis report presents findings from prematurely failed pavement of Ring-Road II (Kehä II) in Espoo, Finland. The road had excessive potholes, cracking, raveling and stripping only five years after construction. Core samples taken for this study revealed also that pavement layers were partially separated due to the lack of bonding. Research focus was to determine the causes of Stone Mastic Asphalt surface layer failure. Documentation of mix design, construction and material quality analysis, prior to and after construction, was compared to the samples collected from the road. Traditional quality assessment of the pavement by means of binder content and aggregate gradation analysis, air voids content, Indirect Tensile Strength and Stiffness, as well as binder tests including Penetration, Ring and Ball Softening Point and rheological characterization by Dynamic Shear Rheometer (DSR) were performed. Discrepancy was found in filler composition and additional analysis was made by applying standard analytical procedure of hydrochloric acid solubility. The findings were confirmed by means of Thermogravimetral Analysis (TGA), X-Ray Diffraction (XRD), and Scanning Electron Microscopy (SEM), supported by BET-adsorption surface area measurements. The investigation revealed presence of fly ash that was apparently used for extending limestone filler during construction. It can be concluded that the main reason for the pavement failure was due to this substitution and the consequent problems that followed in the construction and thereafter in the pavement performance.en
dc.format.extent69
dc.format.mimetypeapplication/pdf
dc.identifier.isbn978-952-60-5265-6 (electronic)
dc.identifier.issn1799-490X (electronic)
dc.identifier.issn1799-4896 (printed)
dc.identifier.issn1799-4896 (ISSN-L)
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/10884
dc.identifier.urnURN:ISBN:978-952-60-5265-6
dc.language.isoenen
dc.publisherAalto Universityen
dc.publisherAalto-yliopistofi
dc.relation.ispartofseriesAalto University publication series SCIENCE + TECHNOLOGYen
dc.relation.ispartofseries18/2013
dc.subject.keywordasphalten
dc.subject.keywordforensicen
dc.subject.keyworddistressen
dc.subject.keyworddurabilityen
dc.subject.keywordfly ashen
dc.subject.keywordair voidsen
dc.subject.keywordhydrochloric acid solubilityen
dc.subject.keywordthermogravimetral analysis (TGA)en
dc.subject.keywordscanning electron microscopy (SEM)en
dc.subject.otherCivil engineeringen
dc.subject.otherTransport engineeringen
dc.titleDurability of Ring-Road II asphalt pavement - Phase I report on forensic analysis of Ring-Road II pavement distressesen
dc.typeD4 Julkaistu kehittämis- tai tutkimusraportti tai -selvitysfi
dc.type.dcmitypetexten

Files

Original bundle

Now showing 1 - 1 of 1
No Thumbnail Available
Name:
isbn9789526052656.pdf
Size:
15.16 MB
Format:
Adobe Portable Document Format