Abstract
Chip seals are mostly constructed based on experience. However, it is difficult to evaluate the effects of pavement condition and materials type on chip seal performance based on experience only. This study used the mechanistic procedure to evaluate chip seal performance for different types of materials and pavement conditions. Millings and virgin chips are compared to evaluate whether millings can be used in chip seal. It is observed that millings provide the same strength, surface texture, and skid resistance as virgin chips. It is also observed that there is an optimum value of surface texture for which maximum strength is obtained. Cohesive resistance decreases, whereas friction coefficient, skid resistance, and texture depth after the chip seal increase with the increase of texture depth before the construction of the chip seal.
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