Test Instruments for Coating Concrete

Question 1

What is ASTM D 4263?

Answer 1

Standard Test Method for Indicating Moisture in Concrete by the Plastic Sheet Method

Question 2

What is ASTM F 1869?

Answer 2

Calcium Chloride Test

Question 3

What is ASTM F2170-02?

Answer 3

Standard Test Method for Determining Relative Humidity in Concrete Floor Slabs Using in Situ Probes

Question 4

What is ASTM D 7682-10?

Answer 4

Standard Test Method for Replication and Measurement of Concrete Surface Profiles using Replica Putty

Question 5

Describe the test procedure for the plastic sheet method

Answer 5

• 0.1 mm (4.0 mil) thick, clear polyethylene sheet approximately 457 x 457 mm (18 x 18 in.)
• Taped over the concrete tightly sealed from the atmosphere and sunlight
• Remain a minimum of 16 hours

Question 6

Describe the Calcium Chloride Test Procedure (ASTM F 1869)

Answer 6

• Weighed amount of calcium chloride
• Very hygroscopic, allowed to remain for an agreed period of time
• At the end of this period, the calcium chloride is removed and weighed again

Question 7

What is the only product currently able to provide a permanent record of anchor profile of concrete/steel surfaces

Answer 7

The Concrete Profiler (TCP)

Question 8

What is ASTM D6132?

Answer 8

Standard Test Method for Nondestructive Measurement of Dry Film Thickness of Applied Coatings Over Concrete Using an Ultrasonic Gage

Question 9

What is SSPC-PA 9?

Answer 9

Measurement of Dry Coating Thickness Using Ultrasonic Gage

Question 10

What is the preferred holiday tester for coatings over concrete?

Answer 10

High Voltage DC Constant Current

Question 12

What standards are most commonly used for the determination of dry film thickness (DFT) of coatings on concrete by ultrasonic gauges? (Select all that apply.)
A. ASTM D6132
B. SSPC PA 2
C. SSPC PA 9
D. ASTM F186

Answer 12

A. ASTM D6132

C. SSPC PA 9

Question 13

Which of the following materials are likely to be used to check moisture content in concrete?
A. Plastic Sheet
B. Potassium Ferricyanide
C. Calcium Sulfate
D. Replica putty

Answer 13

A. Plastic Sheet

Question 14

Holiday Detection of fusion bonded epoxy, having a DFT of less than 500 microns (20 mils) is most commonly performed using
_________?
A. Low voltage DC holiday detection
B. High voltage AC holiday detection
C. Visual inspection is all that is required on FBE
D. High voltage DC holiday detection

Answer 14

D. High voltage DC holiday detection

High voltage on FBE