FDOT Concrete Inspection 3

Question 1

What is the purpose of the FDOT Concrete Field Inspector certification program?

Accepted Answer

To certify personnel in concrete sampling, testing, and placement inspection

Answer

To qualify inspectors to approve mix designs

Answer

To license concrete plant operators

Answer

To authorize structural engineers to approve concrete

Question 2

What test measures the ability of concrete to resist penetration of chloride ions, relevant to Florida's coastal environments?

Accepted Answer

AASHTO T 277 (Rapid Chloride Permeability)

Answer

ASTM C 39 (Compressive Strength)

Answer

AASHTO T 119 (Slump)

Answer

ASTM C 138 (Unit Weight)

Question 3

According to FDOT specifications, at what minimum temperature must concrete be maintained during cold weather protection?

Accepted Answer

50°F

Answer

40°F

Answer

45°F

Answer

55°F

Question 4

What is the FDOT requirement for consolidating concrete in bridge deck forms?

Accepted Answer

Internal vibration with approved vibrators

Answer

Hand rodding only

Answer

External form vibration only

Answer

No vibration required if slump is 5 inches or more

Question 5

Which FDOT document outlines the Certified Concrete Technician exam topics and qualification requirements?

Accepted Answer

FDOT Materials Manual

Answer

FDOT Structures Design Manual

Answer

FDOT Soils and Foundations Manual

Answer

FDOT Standard Specifications

Question 6

What is the minimum required concrete cover over reinforcing steel for FDOT bridge superstructure elements exposed to seawater?

Accepted Answer

3 inches

Answer

1.5 inches

Answer

2 inches

Answer

4 inches