question 2 5 pts the aggregate in question 1 will be mixed with asphal
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Question #2 (5 pts.):
The aggregate in Question 1 will be mixed with asphalt binder to create a pavement to be used in
Long Island. The 7-day average high air temperature in the area is expected to be 95 degrees F,
with a standard deviation of 1.8 degrees F, and the low air temperature in the area is expected to
reach 7 degrees F, with a standard deviation of 2.5 degrees F. The pavement will be used to
repave a busy state highway. Address the following:
a) Determine the performance grade of the asphalt that should be used for this pavement with
98% reliability. (2 pts.)
b) Discuss the general considerations for ductility of the binder for the conditions stated. (1
pt.)
c) If a penetration test yields a penetration of 4.5 mm into the asphalt, list its penetration
grade, aged residue grade, and ductility. (1 pt.)
d) Discuss the suitability of the addition of lime to the pavement mix. (1 pt.)