Impact of Temperature Gradient on Modulus of Asphaltic Concrete Layers
- 1 August 2006
- journal article
- Published by American Society of Civil Engineers (ASCE) in Journal of Materials in Civil Engineering
- Vol. 18 (4) , 492-499
Abstract
Temperature is one of the most dominant factors that impact the variation in modulus of asphalt concrete (AC) layers. An accurate relationship between temperature and modulus is necessary to successfully characterize asphalt concrete pavements. The variation in modulus is typically related to the average temperature of a layer. However, the temperature gradient within a layer also plays a role in that relationship. The impact of temperature gradient on modulus of AC layers is reported in this paper. A test setup that can simulate the variation in temperature with time of day was developed and used. With the data obtained, a preliminary relationship between temperature gradient and modulus has been developed. The next step of this study is to develop a model that can be used in pavement analysis.Keywords
This publication has 3 references indexed in Scilit:
- Effective Layer Temperature Prediction Model and Temperature Correction via Falling Weight Deflectometer DeflectionsTransportation Research Record: Journal of the Transportation Research Board, 2001
- Structural Field Testing of Flexible Pavement Layers with Seismic Methods for Quality ControlTransportation Research Record: Journal of the Transportation Research Board, 1999
- Relationships Among Rate-Dependent Stiffnesses of Asphalt Concrete Using Laboratory and Field Test MethodsTransportation Research Record: Journal of the Transportation Research Board, 1998