A proofroll on a building pad shows pumping and rutting in one corner after the first aggregate lift. What is the proper sitework response?
Correct Answer
C) Undercut or stabilize the unsuitable area, recompact at proper moisture, and retest
Pumping and rutting indicate unstable or unsuitable subgrade; the area should be corrected and retested before later lifts hide the defect. Other choices cover, ignore, or build over inadequate support.
Why This Is the Correct Answer
Pumping and rutting indicate unstable or unsuitable subgrade; the area should be corrected and retested before later lifts hide the defect. Other choices cover, ignore, or build over inadequate support.
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