USA Banner

Official US Government Icon

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure Site Icon

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

FHWA-HRT-21-055 FlexMAT™ Asphalt Cyclic Fatigue.pdf

This PDF contains the FlexMAT-specified data structure for the cyclic fatigue test using the AMPT. The test data output must follow the data structure for import to FlexMAT.

Last updated: Wednesday, November 24, 2021