A dowel bar cap is a cylindrical protective cover made from materials like PVC or plastic, designed to fit over one end of a dowel bar in concrete construction joints. Its primary function is to prevent the concrete from bonding to the dowel bar on one side, allowing for the necessary movement of the concrete slab due to expansion and contraction. This movement is crucial for maintaining the integrity of the pavement and preventing cracking. Dowel bar caps are typically 4 inches in length with dia. of 22 mm, 32 mm & 40 mm sizes to accommodate different dowel bar diameters. They are easy to install, cost- effective, and contribute to the long- term durability of concrete pavements.