Before releasing the work, the team identifies this condition: the controlling field constraint is that joint must resist water passage through concrete. Which waterstop material fits best?
Correct Answer
A) Select specified PVC or hydrophilic waterstop
specified PVC or hydrophilic waterstop 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
specified PVC or hydrophilic waterstop 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 B: Select surface sealant only at cold joint
Select surface sealant only at cold joint addresses a neighboring field issue, but not the condition or method control required for waterstop selection.
Option C: Select backer rod in construction joint
Select backer rod in construction joint addresses a neighboring field issue, but not the condition or method control required for waterstop selection.
Option D: Select roof flashing membrane in footing joint
Select roof flashing membrane in footing joint addresses a neighboring field issue, but not the condition or method control required for waterstop selection.
Memory Technique
Waterstop Selection method for Manager Checking: condition first, tool second.
Reference Hint
Open-book path: tab Principles and Practices of Commercial Construction, 10th Edition to Concrete water-control materials; waterstop at joints; verify the construction method, material selection, equipment choice, or work sequence that fits the field condition.
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