Nondestructive Testing of Pavements and Backcalculation of Moduli

Nondestructive Testing of Pavements and Backcalculation of Moduli
Author: ASTM Committee D-18 on Soil and Rock. Subcommittee D-4 on Road and Paving Materials
Publisher: ASTM International
Total Pages: 528
Release: 1994
Genre: Fatigue
ISBN: 0803118651

The proceedings of June 1993 international symposium held in Atlanta, Georgia, called specifically to develop and standardized evaluation procedures for non-destructive methods of testing pavements. The 29 papers discuss analytical models and techniques, measurement and calculation techniques in the field and laboratory, problems and errors associated with backcalculation methods and design parameters, and testing for other pavement uses. Also includes a history of the quest for a standard and the status of that effort. Reproduced from typescripts. Annotation copyright by Book News, Inc., Portland, OR

Proceedings

Proceedings
Author:
Publisher:
Total Pages: 912
Release: 1997
Genre: Pavements, Asphalt
ISBN:

Rehabilitation Techniques for Stripped Asphalt Pavements

Rehabilitation Techniques for Stripped Asphalt Pavements
Author: David R. Johnson
Publisher:
Total Pages: 180
Release: 2002
Genre: Pavements, Asphalt
ISBN:

Asphalt stripping is a fairly common form of distress for pavements in Montana, particularly for pavements that were surfaced with an open graded friction course. Currently, the technique for rehabilitating these pavements involves the costly removal of most or all of the stripped material, prior to the placement of an overlay. The goal of this research was to determine whether the stripped material can remain in place, serving as a structural layer within the rehabilitated pavement. This study has involved the construction of five test sites, which were incorporated into larger overlay projects. At each of these sites, stripped material was removed from a control section and stripped material was left in place for a test section, prior to the placement of the overlay. Leaving stripped asphalt concrete surface material in place during rehabilitation, to be overlayed with the new asphalt concrete, did not tend to make the rehabilitated pavement more susceptible to either stripping damage or load induced damage. Life cycle cost analyses should consider rate of stripping deterioration (in./year) to new asphalt concrete to be the same, whether or not stripped material is removed prior to placing an overlay. Overlay thickness and mix design methods for resisting stripping are the important factors for extending the life of a rehabilitated stripped asphalt pavement.