Asphalt Exam Questions With Correct
Answers.
Asphalt is produced by - Answer✔fractional distillation of petroleum crude
the typical value of the air voids percentage in Marshall mix Is - Answer✔4%
for asphalt type PG 64-22, what does PG stand for - Answer✔performance grade
a mixture of asphalt and water with a ratio of 40:60 is called - Answer✔emulsion
if the bulk specific gravity of the Marshall mix is 2.457 and its theoretical maximum specific
gravity is 2.598, then VTM is equal to - Answer✔5.4%
at high temps, ________ is the most common distress noticed in asphalt pavement -
Answer✔rutting
as the temp increases, viscosity of asphalt _______ - Answer✔decreases
asphalt is soluble in _____- - Answer✔benzene
_________________ grading is used in the mix design of superpose - Answer✔performance
the ________ is used to simulate short term aging that occurs in asphalt during the production of
asphalt concrete - Answer✔rolling thin film oven test
if the stiffness of asphalt in a mix is significantly lower than optimal range, this probably causes:
- Answer✔rutting
which of the following PG asphalts would not be suitable for an area that has a max pavement
temp of 58C and a min pavement temp of -22C - Answer✔PG 58-16
a typical value for asphalt content in a hot mix asphalt is - Answer✔5% by weight or 20% by
volume
the measurement unit of Marshall stability of asphalt is - Answer✔ib ?
______________ aggregate has a negative effect on asphalt concrete mix stability -
Answer✔round
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