Intro to Asphalt UPDATED ACTUAL Exam Questions and
CORRECT Answers
Name three basic asphalt mix types - Surface, Intermediate, and Base Courses
19.0mm mixes are classified as what type of Superpave Mix? - Intermediate
Another name for the document or the "recipe" for an asphalt mix which displays the sources and
grades of materials, blend proportions of aggregates, specific gravity information, and other
applicable data and notes is - The Job Mix Formula
The overall objective in designing asphalt mixes is to determine an economical blend of
gradation of aggregates (within specifications limits) and to a corresponding asphalt content that
yields a mix having: - Sufficient asphalt, a mix resistant to permanent deformation, voids, and
workability
The mixing temperature for a PG 64-22 Superpave asphalt mix is - 250-290 degF
What do the 8 digits of the JMF mean? - First 2 are the Year which the design was approved; The
third from the last number us a plant number; the next to the last digit is the non-strip additive
Amount; Last digit is a JMF sequence number based in this mix
What are the two types of asphalt plants commonly used in North Carolina? - Batch and Drum
Plants
True of False - All asphalt plants that produce mix for the NCDOT projects must be certified by
the NCDOT as meeting all requirements if the current NCDOT Standards Specifications - True
The difference between drum-mix plants and batch mix plants is that within the drum: - All are
correct (Mixed with the asphalt binder, The aggregate is dried and heated)
, Who's responsibility is it to insure that the proper grade of asphalt binder, as shown on the JMF
is being used? - The QC and QA (Plant and Roadway) Technicians
To avoid truck end segregation the truck should be loaded with a minimum of how many dumps
and where? - 3 dumps (the back, center, & front of the bed)
The asphalt mix temperature immediately prior to discharge from the haul vehicle at the roadway
shall be within + _____ ° to -_____ °F of the JMF temperature. - 25,-25
True of False - Mix from Non-DOT project can be used for Mix verification of a new design? -
True
All asphalt lab specimens will be tested utilizing the ____ test method for compaction 150mm
test specimens - Superpave Gyratory compactor
The ____ has the option to use a recycle plant mix in lieu of virgin plant mix - Contractor
All hot-mix recycling of RAP/RAS is done by the ____ method - Mixer heat transfer
Widely used Recycled materials are defined as _____ (RAP) and _____ (RAS): - Reclaimed
Asphalt Pavement, Reclaimed Asphalt Shingles
Asphalt Milling is defined as the _____ using a milling machine in a single pass. - Removal of
the pavement surface
The _____ is made specifically to apply liquid asphalt material uniformly and in proper
quantities to a roadway surface - Asphalt Distributor
CORRECT Answers
Name three basic asphalt mix types - Surface, Intermediate, and Base Courses
19.0mm mixes are classified as what type of Superpave Mix? - Intermediate
Another name for the document or the "recipe" for an asphalt mix which displays the sources and
grades of materials, blend proportions of aggregates, specific gravity information, and other
applicable data and notes is - The Job Mix Formula
The overall objective in designing asphalt mixes is to determine an economical blend of
gradation of aggregates (within specifications limits) and to a corresponding asphalt content that
yields a mix having: - Sufficient asphalt, a mix resistant to permanent deformation, voids, and
workability
The mixing temperature for a PG 64-22 Superpave asphalt mix is - 250-290 degF
What do the 8 digits of the JMF mean? - First 2 are the Year which the design was approved; The
third from the last number us a plant number; the next to the last digit is the non-strip additive
Amount; Last digit is a JMF sequence number based in this mix
What are the two types of asphalt plants commonly used in North Carolina? - Batch and Drum
Plants
True of False - All asphalt plants that produce mix for the NCDOT projects must be certified by
the NCDOT as meeting all requirements if the current NCDOT Standards Specifications - True
The difference between drum-mix plants and batch mix plants is that within the drum: - All are
correct (Mixed with the asphalt binder, The aggregate is dried and heated)
, Who's responsibility is it to insure that the proper grade of asphalt binder, as shown on the JMF
is being used? - The QC and QA (Plant and Roadway) Technicians
To avoid truck end segregation the truck should be loaded with a minimum of how many dumps
and where? - 3 dumps (the back, center, & front of the bed)
The asphalt mix temperature immediately prior to discharge from the haul vehicle at the roadway
shall be within + _____ ° to -_____ °F of the JMF temperature. - 25,-25
True of False - Mix from Non-DOT project can be used for Mix verification of a new design? -
True
All asphalt lab specimens will be tested utilizing the ____ test method for compaction 150mm
test specimens - Superpave Gyratory compactor
The ____ has the option to use a recycle plant mix in lieu of virgin plant mix - Contractor
All hot-mix recycling of RAP/RAS is done by the ____ method - Mixer heat transfer
Widely used Recycled materials are defined as _____ (RAP) and _____ (RAS): - Reclaimed
Asphalt Pavement, Reclaimed Asphalt Shingles
Asphalt Milling is defined as the _____ using a milling machine in a single pass. - Removal of
the pavement surface
The _____ is made specifically to apply liquid asphalt material uniformly and in proper
quantities to a roadway surface - Asphalt Distributor
