Validation of the Louisiana Interlayer Shear Strength Test for Tack Coat (2018) / Chapter Skim
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5 A comprehensive literature review was previously conducted as part of NCHRP 09-40 (1)
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6 the amount of the emulsifying agent in the emulsion control the setting rate. The emulsions currently available in practice are SS, medium setting (MS)
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7 pavement layers. Moreover, several performance-related test tools are available to assess the bonding characteristics of tack coat materials.
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8 a 1:1 ratio, which was equivalent to residual application rates between 0.02 and 0.05 gsy. Lower application rates are recommended for new layers, while the intermediate range is for normal surface conditions on an existing relatively smooth pavement.
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9 since asphalt cement is a thermoplastic material. Researchers reported that both interface shear strength and shear stiffness are highly temperature dependent for interfaces with or without tack coats (1, 22, 23, 24, 30, 31, 38, 47, 57)
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10 Further, improved bonding condition with service time was reported after retesting the evaluated test sections. An objective of the Strategic Highway Research Program 2 (51)
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