Standard Test Method for Multiple Stress Creep and Recovery (MSCR) of Asphalt Binder Using a Dynamic Shear Rheometer

Importancia y uso:

5.1 This test method is used to identify the presence of elastic response in a binder and the change in elastic response at two different stress levels. Non-recoverable creep compliance has been shown to be an indicator of the resistance of an asphalt binder to permanent deformation under repeated load.

5.2 This test method is also useful as a surrogate for other test methods used to measure elasticity in asphalt binders such as Test Method D5801 (toughness and tenacity), Test Method D6084/D6084M (elastic recovery), and Test Method D7175 (DSR phase angle).

Note 2: The quality of the results produced by this standard are dependent on the competence of the personnel performing the procedure and the capability, calibration, and maintenance of the equipment used. Agencies that meet the criteria of Specification D3666 are generally considered capable of competent and objective testing, sampling, inspection, etc. Users of this standard are cautioned that compliance with Specification D3666 alone does not completely ensure reliable results. Reliable results depend on many factors; following the suggestions of Specification D3666 or some similar acceptable guideline provides a means of evaluating and controlling some of those factors.

Subcomité:

D04.44

Referida por:

D7173-20R24, D8239-23, D7944-22

Volúmen:

04.03

Número ICS:

91.100.50 (Binders. Sealing materials)

Palabras clave:

asphalt binder; creep and recovery; DSR; dynamic shear rheometer; elastic recovery; MSCR; non-recoverable creep compliance; polymer-modified asphalt;