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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/3653

Title: Characterization of pavement distress from test pit observation
Authors: Mgangira, MB
Keywords: Road material
Pavement distress
Pavement layers
In-situ pavement materials
Crack propagation
Roadbed
GeoHunan
Pavement technologies
Test pits
Issue Date: Aug-2009
Citation: Mgangira, MB. 2009. Characterization of pavement distress from test pit observation. GeoHunan: Challenges and Recent Advances in Pavement Technologies and Transportation Geotechnics International Conference, Hunan, China, 3-6 August 2009, pp 1-7
Abstract: The characteristics of the roadbed material are critical to the overall performance of the pavement. The paper presents examples with discussion of the form of distress experienced within the pavement layers, based on observations made during the profiling exercise of an investigation into the causes of the premature failure of a pavement. The field investigation entailed a detailed inspection and recording of the profile exposed in test pits, with particular attention being paid to areas with cracks, noting their positions and extent within the pavement layers. The focus of the paper is on the observed orientation of crack propagation within the pavement layers. It is shown that the crack propagation is not always in the vertical plane. This has implications in dealing with crack sealing procedures. The causes of the observed distress were attributed to the behaviour of the roadbed as it experienced fluctuating moisture conditions.
Description: GeoHunan: Challenges and Recent Advances in Pavement Technologies and Transportation Geotechnics International Conference, Hunan, China, 3-6 August 2009
URI: http://hdl.handle.net/10204/3653
ISBN: 978-0-7844-1043-1
Appears in Collections:Infrastructure engineering
General science, engineering & technology

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