Quality Control Measures in Asphalt Pavement Construction

Constant checking of bituminous mixture as it leaves the pugmill/central mixing plant for compliance with the job-mix formula is important. Hence, the tolerance temperature of asphalt mix is:

• 165 degree Celsius

• 110 degree Celsius

• 130 degree Celsius

• 120 degree Celsius

It is an assembly of mechanical and electronic equipment where aggregates, recycled materials, or other additives are blended, heated, dried, and mixed with a binder to produce an asphalt mixture meeting specified requirements.

• Asphalt Batch-Type Mixing Plant

• Asphalt Mixture Plant

• Asphalt Drum-Type Mixing Plant

• Portland Cement Concrete Mixture Plant

Quality asphalt pavement has:

• Good design

• Good quality of materials

• Good construction control or workmanship

• Good foundation

• Good drainage

What is the required stability (index retain strength) of the asphalt mix when tested by AASHTO T165?

• greater than or equal to 70

• less than or equal to 70

• greater than 70

• less than 70

What are the basis of acceptance and final payment on the completed asphalt pavement?

• thickness and strength determination

• thickness and density determination

• thickness determination only

• density determination only

The variation of the surface from the testing edge (3-m straight edge) between contact with the surface shall ________.

• exceed 6 millimeters

• not exceed 6 millimeters

• not exceed 8 millimeters

• exceed 8 millimeters

The mixture shall be placed at a temperature ____________ as measured in the truck prior to dumping into the spreader.

• not less than 107 degree Celsius

• less than 107 degree Celsius

• not less than 105 degree Celsius

• less than 105 degree Celsius

If no core was taken at the end of each day’s operation and the project has already been completed, a core shall be taken for __________ of the completed pavement.

• every 50 linear meters per lane

• every 100 linear meters per lane

• every 150 linear meters per lane

• every 200 linear meters per lane

Test to determine the asphalt content in bituminous paving mixture:

• Laboratory Density Test

• Immersion-Compression Test

• Grading Test

• Extraction Test

Also known as as thermal cracking, occur roughly perpendicular to the centerline of the pavement or laydown direction.

• Transverse Cracking

• Linear Cracking

• Fatigue Cracking

• Slippage Cracking