This document provides an overview of the theory used in the development of the BCOA-ME. The traffic induced loading, climate induced loading, stress calculations, fatigue damage accumulation and calibration are discussed.
This document reviews the performance of previously constructed bonded concrete overlay of asphalt. The progression of distresses, as well as the predominant failure mode are discussed.
This document explains, in-depth, the theory on how climatic effects were accounted for within the BCOA-ME. Both the effect of temperature on the stiffness of the hot mix asphalt and the effect of temperature gradients that develop in the overlay are incorporated in the design process.
This document characterizes the bond between the concrete overlay and the existing asphalt structure. Small scale and full scale laboratory testing was performed to determine the fracture mechanics properties of the bond between the concrete and the asphalt and to validate debonding models.
Debonding Models (PDF XXX KB)
This paper identifies a longitudinal crack in the wheel path as the predominant failure mechanism in BCOA with joint spacing of 1.8 m x 1.8 m (6 ft x 6 ft). This paper was published in the Transportation Research Record: The Journal of the Transportation Research Board.
Identifying Failure Modes (Abstract and Citation) (PDF 9 KB)