A subcontractor asks for direction after noting that the work should be released only if the team addresses that subgrade and aggregate must remain separated. Which geotextile selection best fits the work?
Correct Answer
B) Coordinate separation geotextile between soils
separation geotextile between soils 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
separation geotextile between soils 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: Coordinate impermeable liner under drain stone
Coordinate impermeable liner under drain stone addresses a neighboring field issue, but not the condition or method control required for geotextile function.
Option C: Coordinate erosion blanket used as separator
Coordinate erosion blanket used as separator addresses a neighboring field issue, but not the condition or method control required for geotextile function.
Option D: Coordinate filter fabric placed where drainage must be blocked
Coordinate filter fabric placed where drainage must be blocked addresses a neighboring field issue, but not the condition or method control required for geotextile function.
Memory Technique
Geotextile Function method for Manager Checking: condition first, tool second.
Reference Hint
Open-book path: tab Principles and Practices of Commercial Construction, 10th Edition to Earthwork materials; separation filtration and stabilization; verify the construction method, material selection, equipment choice, or work sequence that fits the field condition.
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