As with blisters, delaminations can be repaired by patching or, if wide-spread, by grinding and overlaying with a new surface. Epoxy injection may also be beneficial in some applications. Which repair method is commonly used for delaminations?

• A. Patching
• B. Grinding And Overlaying
• C. Epoxy Injection
• D. All Of The Above

Answer: (D)

When delaminations occur, multiple repair routes exist because the situation can vary in how widespread and deep the separation is. Patching is used for localized delaminations where only a small area is affected; you place a patch over the damaged spot to restore the surface and stop moisture from getting in. If the delamination covers a larger area, grinding away the degraded surface and applying a new overlay helps reestablish a continuous, bonded surface and improves load transfer across the pavement. Epoxy injection targets voids or separations between layers that aren’t easily addressed with patching or grinding; injecting epoxy bonds the layers back together and fills voids to restore structural integrity. Because the same problem can present in different forms, all of these methods are commonly used depending on the specific condition, making all of the above the correct approach.