What are the differences between bonded overlays and rigid pavements?
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Bonded overlays, also known as whitetopping or bonded concrete overlays of asphalt (BCOA), are thin concrete overlays placed on distressed asphalt pavements. They rely on the composite action of the concrete and asphalt layers, with the interface between the two materials playing a crucial role . The bond characteristics between the asphalt and concrete layer are investigated using laboratory tests and numerical simulations . The effectiveness of bonded overlays depends on the bonding conditions and the transfer of stresses and strains between the layers under traffic loads . On the other hand, rigid pavements are made of Portland cement concrete and possess notable flexural strength or flexural rigidity . They can bridge minor variations in the lower layer and do not deform to the shape of the lower surface . The differences between bonded overlays and rigid pavements lie in their construction techniques, materials used, and the behavior of the layers under traffic loads.
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| Papers (3) | Insight |
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Open access 12 Oct 2015 | The provided paper does not mention bonded overlays or discuss the differences between bonded overlays and rigid pavements. |
01 Jun 2016 5 Citations | The provided paper does not directly compare bonded overlays and rigid pavements. The paper focuses on the role of the concrete-asphalt interface in bonded concrete overlays of asphalt pavements. |
01 Jan 2020 2 Citations | The provided paper does not directly discuss the differences between bonded overlays and rigid pavements. |
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