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LTPP Seasonal Asphalt Concrete (AC) Pavement Temperature Models

机译:LTpp季节性沥青混凝土(aC)路面温度模型

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SUPERPAVE binders are selected based on the lowest and highest pavement211u001etemperatures expected at a job. The original SUPERPAVE specifications were 211u001edeveloped with limited data for validating the low-temperature algorithm for 211u001epavement temperatures. The lowest air temprature was assumed for the lowest 211u001epavement temperature. In areas with extremely low temperature, this conservative 211u001eapproach has led to the selection of more restrictive binder grades than may be 211u001enecessary. These binder grades usually require that modifiers be added to the 211u001easphalt, which increases the cost of the project. The report proposes revisions 211u001eto the Strategic Highway Research Program (SHRP) Performance Grading System for

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