CCIL CCIL - Canadian Council of Independent Laboratories Pavement Construction and Inspection Questions and Answers

Question 1

What test method is used to determine the in-place density of compacted hot mix asphalt using a nuclear gauge on a pavement project?

Accepted Answer

ASTM D2950 / AASHTO T 355

Answer

ASTM D1188

Answer

ASTM D2726

Answer

ASTM D4123

Question 2

What is the minimum air void content typically specified for compacted hot mix asphalt pavement lifts to ensure adequate durability?

Accepted Answer

3%

Answer

1%

Answer

5%

Answer

8%

Question 3

During asphalt paving operations, what is the maximum allowable pavement temperature for breakdown rolling to begin on most projects?

Accepted Answer

Above 120°C (250°F)

Answer

Below 80°C (175°F)

Answer

Above 150°C (300°F)

Answer

Below 60°C (140°F)

Question 4

What CCIL certification type is required for technicians conducting asphalt pavement field inspection and density testing on highway projects?

Accepted Answer

CCIL Type II (Asphalt)

Answer

CCIL Type I (Soils)

Answer

CCIL Type III (Concrete)

Answer

CCIL Type IV (Laboratory)

Question 5

What is the purpose of a longitudinal joint in asphalt pavement construction?

Accepted Answer

To connect adjacent lanes paved in separate passes while maintaining density at the seam

Answer

To allow thermal expansion of the asphalt in hot weather

Answer

To provide a drainage channel along the pavement edge

Answer

To separate the binder course from the surface course

Question 6

Which pavement distress type is characterized by interconnected cracks forming a pattern resembling alligator skin, typically caused by fatigue failure?

Accepted Answer

Alligator (fatigue) cracking

Answer

Thermal transverse cracking

Answer

Reflection cracking

Answer

Edge cracking