04.11.2019 Views

SHRP-A-379 traducir

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

Table 5. Guidelines for Binder Modification<br />

I<br />

Binder Specification Suggested Ratio<br />

Property (Modified/Unmodified Binder)<br />

G*/sin _ >_ 2.5<br />

G'sin 6 < 0.7<br />

S -< 0.7<br />

m -> 1.2<br />

Table 6. Performance-Based Laboratory Mix Tests and Conditioning Procedures<br />

Pavement Equipment & Test Measurement<br />

Distress<br />

Permanent <strong>SHRP</strong> Shear Test Device: • Dilatancy<br />

Deformation • Uniaxial Strain Test • Accumulation of Permanent Strain<br />

• Volumetric Test • Stiffening under Conf'ming Stress<br />

• Simple Shear Test • Tertiary Creep<br />

• Frequency Sweep • Shear Modulus<br />

• Repetitive Shear Test at Constant Height • Phase Angle<br />

• Repetitive Shear Test at a Field State of Stress<br />

Low Indirect Tensile Test Device: • Creep Compliance<br />

Temperature • Indirect Tensile Creep Test • Tensile Strength<br />

Cracking • Indirect Tensile Failure Test<br />

Fatigue Simple Shear Test Device: • Shear Modulus<br />

Cracking • Frequency Sweep • Phase Angle<br />

(Surrogate Indirect Tensile Test Device: • Tensile Strength<br />

Method) • Indirect Tensile Failure Test<br />

Fatigue Flexural Beam Fatigue Device: • Cycles to Beam Failure<br />

Cracking • Constant Strain Flexural Fatigue at 20 °C<br />

(Referee<br />

Method)<br />

Water AASHTO T283: • Change in Tensile Strength<br />

Sensitivity • Tensile Strength in Dry and Wet Condition<br />

OF<br />

or<br />

Environmental Conditioning System:<br />

• Dynamic Modulus in Dry and Wet Condition • Change in Dynamic Modulus<br />

Aging--Short Forced Draft Oven Aging of Loose Mix: • Change in Dynamic Modulus<br />

Term • Dynamic Modulus in Unaged and Aged<br />

Condition<br />

Aging--Long Forced Draft Oven Aging of Compacted Mix: • Change in Dynamic Modulus<br />

Term • Dynamic Modulus in Unaged and Aged<br />

Condition<br />

223

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!