1. The influence of water on the oxidation of asphalt cements.
- Author
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Hernández Noguera, Jesús Alfredo, Rondón Quintana, Hugo Alexander, and Fernández Gómez, Wilmar Darío
- Subjects
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ASPHALT concrete , *OXIDATION , *ASPHALT pavement design & construction , *CHEMICAL bonds , *HUMIDITY - Abstract
Two grades of paving asphalt, AC 80-100 and AC 60-70, were studied to determine changes in their physical and chemical properties caused by exposure to water. This experimental study’s primary hypothesis is that the interaction between the water oxygen molecules and asphalt, known as oxidation, changes the asphalt properties, resulting in increased damage from mechanisms such as humidity and aging for mixtures in service. The chemical responses of both asphalts were measured, and the flow activation energy concept was used to understand the resulting changes in the physical and rheological properties after immersion in distilled water for one year. [ABSTRACT FROM AUTHOR]
- Published
- 2014
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