Predicting moisture induced damage to asphaltic concrete

Predicting moisture induced damage to asphaltic concrete
Author:
Publisher:
Total Pages: 12
Release: 1979
Genre:
ISBN:

The Virginia Department of Highways and Transportation is one of seven state and federal agencies participating in a field evaluation of a stripping test method developed under NCHRP Project 4-8(3), "Predicting Moisture-lnduced Damage to Asphaltic Concrete". In the Virginia portion of this field phase of the project, an evaluation is being made of the effectiveness of the method in predicting the degree of stripping that will occur on a 950-ft. (290-m) test section constructed with an asphaltic concrete believed to have a tendency to strip. The test method was used on specimens prepared in the laboratory and on cores taken immediately after construction of the test section in an attempt to predict the stripping susceptibility of the mix. On the basis of the results of those tests it was predicted that stripping would occur over a long period. Tests on cores being taken periodically show decreasing strength values that probably are a result of progressive stripping, that was very evident in cores taken at 22 months.

Predicting Moisture-induced Damage to Asphaltic Concrete

Predicting Moisture-induced Damage to Asphaltic Concrete
Author: G. W. Maupin
Publisher:
Total Pages: 15
Release: 1977
Genre: Pavements, Asphalt concrete
ISBN:

Virginia is one of seven state and federal agencies participating in a field evaluation of a stripping test method developed under NCHRP Project 4-8 (3), "Predicting Moisture- Induced Damage to Asphaltic Concrete." The test method is being used to evaluate the efficacy of the method in predicting the degree of stripping that will occur on a 1,000 ft. (300 m) test section constructed with an asphaltic concrete believed to have a tendency to strip. The degree of stripping of the pavement will be evaluated by visual observation of cores taken periodically and by pavement surveys. In the test method resilient modulus and indirect tensile tests are being performed on preconditioned and non-preconditioned specimens in predicting the potential stripping. The strength or stiffness loss resulting from vacuum saturation preconditioning is being used to indicate potential immediate stripping, and the strength or stiffness loss under a more severe accelerated preconditioning indicates potential stripping after a long period of time. The tests have predicted that stripping will occur over a long period rather than a short period. Tests on cores taken 12 months after construction have shown a minor amount of stripping.

Asphalt Pavements

Asphalt Pavements
Author: Y. Richard Kim
Publisher: CRC Press
Total Pages: 1966
Release: 2014-11-06
Genre: Technology & Engineering
ISBN: 1315736756

Asphalt Pavements contains the proceedings of the International Conference on Asphalt Pavements (Raleigh, North Carolina, USA, 1-5 June 2014), and discusses recent advances in theory and practice in asphalt materials and pavements. The contributions cover a wide range of topics:- Environmental protection and socio-economic impacts- Additives and mo

Predicting Moisture-induced Damage to Asphaltic Concrete

Predicting Moisture-induced Damage to Asphaltic Concrete
Author: G. W. Maupin
Publisher:
Total Pages: 21
Release: 1981
Genre: Asphalt concrete
ISBN:

Virginia was one of seven agencies that participated in the evaluation of a stripping test developed under National Cooperative Highway Research Program Project 4-8(3). The test was used to predict stripping of a field test section and the test results were compared to stripping that occurred in the test section over a 5-year period. The stripping test predicted that a significant amount of stripping would occur over a long time period. Strength tests and visual examination of field cores indicated a significant amount of stripping had occurred at 22 months; however, subsequent corings did not reveal significant additional stripping. Although considerable stripping has developed, the absence of pavement distress is believed to be related to a low traffic volume. Strength tests indicate that stripping is continuing; therefore, more time might be necessary to reach the predicted level of damage.

Asphalt Materials and Mixtures

Asphalt Materials and Mixtures
Author: National Research Council (U.S.). Transportation Research Board
Publisher: Transportation Research Board National Research
Total Pages: 220
Release: 1988
Genre: Technology & Engineering
ISBN: 9780309047104