During the pre-installation review, the field issue is that the project condition shows that movement is needed at a column. Which joint material is the best match?
Correct Answer
C) Use compressible preformed joint filler
compressible preformed joint filler best matches the stated condition. The other choices are real construction options in the same family, but they fit different field conditions.
Why This Is the Correct Answer
compressible preformed joint filler best matches the stated condition. The other choices are real construction options in the same family, but they fit different field conditions.
Why the Other Options Are Wrong
Option A: Use nonshrink grout
Use nonshrink grout addresses a neighboring field issue, but not the condition or method control required for isolation joint filler.
Option B: Material choice: Use rigid fiberboard bonded both sides
Material choice: Use rigid fiberboard bonded both sides addresses a neighboring field issue, but not the condition or method control required for isolation joint filler.
Option D: Use hard cement mortar
Use hard cement mortar addresses a neighboring field issue, but not the condition or method control required for isolation joint filler.
Memory Technique
Controlling is the clue; condition is the method check for Foreman Selecting Tie the cue to Isolation Foreman Selecting Tools.
Reference Hint
Open-book path: tab Principles and Practices of Commercial Construction, 10th Edition to Concrete joint materials; isolation joint filler selection; verify the construction method, material selection, equipment choice, or work sequence that fits the field condition.
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