Step By Step Guide "Relative Humidity Testing According To Astm F2170 - Proceq hygropin Operating Instructions Manual

5. Step by Step Guide
"Relative Humidity Testing according to ASTM F2170"
For details please check the ASTM F2170-09 standard.
Step 1: Check the correct functionality of the instrument
• Recalibrate probes annually
• Check periodically the correct functionality of instrument and probe with the humidity
standard tube (780 10 470)
Step 2: Conditioning
Concrete floor slab and air space surrounding slab shall be at service temperature /
humidity for at least 48 hours.
Step 3: Define number of test holes
• 3 test holes for the first 1000 ft
• at least 1 additional test hole for each additional 1000 ft
Step 4: Define depth of test holes
• 40% of slab thickness if slab is drying from top only
• 20% of slab thickness if slab is drying from top and bottom
Step 5: Drill and prepare test holes
Drill hole using a 8mm /
5/16in drill bit
Cast holes
Use "Add-on for wet
concrete" (780 10 370)
Step 6: Wait 72 hours for moisture equilibrium
Step 7: Measurements
Insert In-Situ probe into
sleeve
Step 8: Report
(Chapter 11, ASTM F2170-9)
Use the Test Report template (chapter 6) to record and report all necessary informa-
tion.
© by Proceq SA
(Chapter 9, ASTM F2170-9)
(Chapter 10.1, ASTM F2170-9)
(Chapter 10.2, ASTM F2170-9)
(Chapter 10.3, ASTM F2170-9)
Clean test hole
(Chapter 10.4, ASTM F2170-9)
Cut sleeve and rod
according to measuring
depth
(Chapter 10.5, ASTM F2170-9)
Wait for temperature
equilibrium
(Chapter 8, ASTM F2170-9)
/ 100 m
2 2
Cut sleeve according to
measuring depth
Remove rod after con-
crete hardens
(Chapter 10.3.4, ASTM F2170-9)
Check for stable value
(trend indicator) before
record data
/ 100 m
2 2
Insert sleeve in test hole
and close cap
Close cap
Measure ambient
condition
11