iRLPD Fatigue For Mixture

(incremental Repeated Load Permanent Deformation)

• Test provides fatigue index, which is the measure of resistance of the mixture to cracking at intermediate temperature
• Test is performed at sweeps of stresses and temperatures
• The duration of the test is 30 min. /temperature
• Fatigue index of ALF mixtures are well correlated with number of passes to first crack in ALF lanes.

Reference:

Azari, H., & Mohseni, A., 2019, “Unified Fatigue Tests for Asphalt Materials using incremental Repeated-Load Permanent Deformation (iRLPD) Methodology,”ASCE International Airfield and Highway Pavements Conference