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Resilient Modulus Testing
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Research Topics

Resources

Organizations

 

Benefits of Mr Testing

 

Mr Summaries

 

Field Modulus Measurements

 

For more information:

 

Shongtao Dai, Road Research

 

John Siekmeier, Road Research

 

Luke Johannek, Road Research

 

 

What is Resilient Modulus?

Reslient Modulus Experimental Setup

Resilient Modulus (Mr) is a fundamental material property used to characterize unbound pavement materials. It is a measure of material stiffness and provides a mean to analyze stiffness of materials under different conditions, such as moisture, density and stress level. It is also a required input parameter to mechanistic-empirical pavement design method. Mr is typically determined through laboratory tests by measuring stiffness of a cylinder specimen subject to a cyclic axle load. Mr is defined as a ratio of applied axle deviator stress and axle recoverable strain. Learn about the MnDOT Resilient Modulus Testing Protocol and Data Quality Control Criteria.

 

Active Projects

 

Completed Projects - Not Yet Published

 

Resilient Modulus Publications