Title

Development of a realistic conditioning and evaluation system to study moisture damage of asphalt materials

Document Type

Conference Proceeding

Publication Date

11-15-2013

Abstract

The main objective of this study is to develop a realistic test and parameter to evaluate a moisture influence on asphalt materials. The equipment consists of a system to apply cyclic loading on three dynamic modulus samples, forcing water out and in through samples. The applied stress is to be selected based on field loadings. These specimens are placed in a conditioning bath to simulate environmental conditions. However, the environmental conditions should be selected to simulate real conditions based on PG grade of asphalt. An extension of a test procedure based on the dynamic modulus test after conditioning method for use in pavement design is to be performed. The research developed the damage rate (Dr) as an indicator for the moisture damage of the mixtures. The research also presented a model to calculate Dr from void ratio and flow rate. © 2013 American Society of Civil Engineers.

Publication Title

Airfield and Highway Pavement 2013: Sustainable and Efficient Pavements - Proceedings of the 2013 Airfield and Highway Pavement Conference

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