Abstract
Interlayers for asphalt reinforcement are considered an effective option to enhance pavement service life. In this regard, innovative factory-made composite materials can be designed as interlayer systems able to combine reinforcing and stress-relieving properties. This can be accomplished by embedding grids or fabrics in bituminous membranes. Given this background, this study considered dynamic flexural properties and interface shear strength of asphalt systems reinforced with different composite membranes obtained by changing the embedded reinforcement and/or the bituminous compound. Results clearly rank the studied materials showing enhanced fatigue response of reinforced asphalt layers. However, interface shear properties strongly suggest proper design and adequate selection of the installation depth.
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