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A platform for research: civil engineering, architecture and urbanism
Observation of reversible moisture damage in asphalt mixtures
Highlights Durability of asphalt mixtures conditioned in water at 60°C was investigated. Durability was evaluated using indirect tensile tests at 20°C. Moisture conditioned asphalt mixtures lost up to 80% of the initial stiffness. Upon drying the mixtures fully recovered both their stiffness and tensile. The results suggest moisture damage in the mixtures tested is reversible.
Abstract Durability of asphalt mixtures conditioned in hot water was investigated using stiffness measurements. Stiffness generally decreased with conditioning time. The effect of moisture on stiffness was found to be reversible as moisture conditioned-asphalt mixtures that had lost up to 80% of their initial stiffness fully recovered upon subsequent drying. Estimates of mastic film thickness and length of diffusion paths obtained from image analysis of X-ray CT scans of the asphalt mixtures suggest moisture diffusion was mainly restricted to the bulk mastic. The results suggest cohesive rather than adhesive failure dominated the durability of asphalt mixtures under the long-term moisture exposure used in this study.
Observation of reversible moisture damage in asphalt mixtures
Highlights Durability of asphalt mixtures conditioned in water at 60°C was investigated. Durability was evaluated using indirect tensile tests at 20°C. Moisture conditioned asphalt mixtures lost up to 80% of the initial stiffness. Upon drying the mixtures fully recovered both their stiffness and tensile. The results suggest moisture damage in the mixtures tested is reversible.
Abstract Durability of asphalt mixtures conditioned in hot water was investigated using stiffness measurements. Stiffness generally decreased with conditioning time. The effect of moisture on stiffness was found to be reversible as moisture conditioned-asphalt mixtures that had lost up to 80% of their initial stiffness fully recovered upon subsequent drying. Estimates of mastic film thickness and length of diffusion paths obtained from image analysis of X-ray CT scans of the asphalt mixtures suggest moisture diffusion was mainly restricted to the bulk mastic. The results suggest cohesive rather than adhesive failure dominated the durability of asphalt mixtures under the long-term moisture exposure used in this study.
Observation of reversible moisture damage in asphalt mixtures
Apeagyei, Alex K. (author) / Grenfell, James R.A. (author) / Airey, Gordon D. (author)
Construction and Building Materials ; 60 ; 73-80
2014-02-13
8 pages
Article (Journal)
Electronic Resource
English
Observation of reversible moisture damage in asphalt mixtures
| British Library Online Contents | 2014
Observation of reversible moisture damage in asphalt mixtures
| Online Contents | 2014
Stripping and Moisture Damage in Asphalt Mixtures
| NTIS | 1984