Frazier Parker
Published: 1987
Total Pages: 62
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The freeze thaw stress pedestal test, the boil test and the indirect tensile test were evaluated for assessing the stripping potential of typical Alabama asphalt concrete mixes and the effectiveness of antistripping additives. This was accomplished by testing surface and base/ binder mixes with five aggregate combinations, two sources of asphalt cement and three antistripping additives. Because of the test complexity and lack of a strong correlation with stripping performance, the freeze thaw stress pedestal test is not recommended. The boil and indirect tensile tests, in combination, offer a viable, although, imperfect, system for stripping evaluation. The lack of a strong correlation with reported field performance detracts from both tests. However, the imprecise and subjective nature of the reported performance and the correlations obtained by others are mitigating factors.