CPII Road and Pavement Inspection 5

Question 1

Which pavement surface treatment involves applying a thin polymer-modified asphalt slurry with aggregate to seal and improve friction on an existing pavement?

Accepted Answer

Microsurfacing

Answer

Microsurfacing uses polymer-modified binder and well-graded aggregate mixed on-site; unlike slurry seal, it can be opened to traffic quickly and used to fill ruts.

Question 2

A longitudinal crack located in the wheel path of an asphalt pavement is most likely caused by:

Accepted Answer

Fatigue from repeated traffic loading causing shear failure

Answer

Wheel-path longitudinal cracks outside the joint area indicate fatigue or shear failure from repeated loading on a pavement with insufficient structural capacity.

Question 3

Which test method is used to measure the in-place density of compacted asphalt pavement during construction inspection?

Accepted Answer

Nuclear density gauge (ASTM D2950)

Answer

The nuclear density gauge is the most common field method for measuring asphalt compaction by measuring gamma radiation attenuation through the pavement.

Question 4

What does 'map cracking' (crazing) in a concrete pavement slab indicate?

Accepted Answer

Surface shrinkage, alkali-silica reaction, or freeze-thaw damage limited to the slab surface

Answer

Map cracking features random, interconnected surface cracks and typically results from surface shrinkage during curing, ASR, or freeze-thaw expansion limited to the top layer.

Question 5

When inspecting pavement joint seals on a concrete road, which condition warrants immediate sealant replacement?

Accepted Answer

Sealant is missing or has separated from joint walls allowing debris intrusion

Answer

Missing or debonded joint sealant allows incompressible debris to fill joints, causing joint spalling and blowups during thermal expansion.

(CPII) Certified Public Infrastructure Inspector Practice Test

(CPII) Certified Public Infrastructure Inspector Practice Test

CPII Road and Pavement Inspection 5