Using Multiple Investigative Techniques to Assess Flushing of Chip Seal Surfaces

Show simple item record Kodippily, Sachi en Henning, Theunis en Ingham, Jason en Holleran, Glynn en 2015-01-22T01:15:36Z en 2014 en
dc.identifier.citation Transportation Research Record: Journal of the Transportation Research Board, 2014, 2431 (1), pp. 42 - 48 en
dc.identifier.issn 0361-1981 en
dc.identifier.uri en
dc.description.abstract Flushing is a defect that has a damaging effect on the functional performance of chip seal pavements. The reported study was conducted to develop techniques to identify and assess flushed pavements effectively. The main aims of the study were first to investigate the effects of chip seal volumetrics on development of flushing and second to develop a model to forecast flushing of chip seal pavements. The study methodology consisted of mechanical testing of chip seal pavement samples and analysis of pavement performance data. Laboratory testing was conducted on samples obtained from flushed chip seal pavements from four regions in New Zealand. Samples were loaded by using a wheel-tracking device, and imaging techniques were used to assess the effects of micromechanical changes on development of flushing. Data analysis was performed on pavement condition data to identify factors providing the best prediction of flushing, and regression analysis was performed to develop a model to predict the initiation and progression of flushing. Study results revealed a direct relationship between flushing and reduction in air void volume that occurred as a result of loading. Data analysis revealed that the combination of factors providing the best indication of flushing was surface thickness, surface age, rut depth, and grade of aggregates. The flushing initiation model had an accuracy of 76%, and the flushing progression model was robust at predicting the quantity of flushing. By using the study outcomes, a pavement condition assessment guideline was developed to aid with assessing and managing flushed chip seal pavements. en
dc.relation.ispartofseries Transportation Research Record: Journal of the Transportation Research Board en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. Details obtained from en
dc.rights.uri en
dc.title Using Multiple Investigative Techniques to Assess Flushing of Chip Seal Surfaces en
dc.type Journal Article en
dc.identifier.doi 10.3141/2431-06 en
pubs.issue 1 en
pubs.begin-page 42 en
pubs.volume 2431 en
pubs.end-page 48 en
dc.rights.accessrights en
pubs.subtype Article en
pubs.elements-id 458048 en Engineering en Civil and Environmental Eng en
pubs.record-created-at-source-date 2015-01-22 en

Files in this item

There are no files associated with this item.

Find Full text

This item appears in the following Collection(s)

Show simple item record


Search ResearchSpace