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Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000


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Pavements

Asphalt Pavement Performance Analysis Software

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Analysis Tools

FlexMAT™ for Cracking
Excel based software tool for characterizing dynamic modulus and cracking of asphalt mixtures from Asphalt Mixture Performance Tester (AMPT) test results. This includes determining the 2S2P1D dynamic modulus mastercurve coefficients and time-temperature shift factors. It also analyzes the AMPT cyclic fatigue test results (AASHTO TP133) to provide inputs to FlexPAVE™ for cracking evaluation. These inputs include damage characteristic curve coefficients, failure criteria coefficients, ageing parameters, and coefficient of thermal contraction. It also supports index-based mix design and production evaluation by calculating the Sapp index cracking parameter.

FlexMAT™ for Rutting
Excel based software tool for characterizing rutting of asphalt mixtures from Asphalt Mixture Performance Tester (AMPT) test results. This includes analyzing the AMPT stress sweep rutting (SSR) test results (AASHTO TP134) to provide shift permanent deformation model coefficients to FlexPAVE™ for rutting evaluation. It also supports the index-based mix design and production evaluation by calculating the RSI index rutting parameter.

Updated: 01/23/2020
Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000