题目内容

The softening point and ductility values of aged asphalt binder will and comparing with unaged asphalt binder, respectively.

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HMA is the abbreviation of______ .

For an aggregate sample, the moist mass is 500g and the bone-dry mass is 480g, what is its water content?

A. 4.0%
B. 4.2%
C. 2.0%
D. 2.2%

For an aggregate sample, the percent passing 9.5mm, 4.75mm, and 2.36 sieves are 100%, 95%, and 90%, respectively. What is the nominal maximum aggregate size of the sample?

A. 2.36mm
B. 4.75mm
C. 9.5mm
D. None of above

In an HMA, which parameter will always increase as asphalt binder content increases？

A. VFA
B. VMA
C. VTM
D. Marshall Stability