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03-15-21-WS
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03-15-21-WS
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Todd Blomstrom, PE <br />May 6, 2020 <br />Page 3 <br /> <br /> <br />Table 1. Pavement core location and information. <br /> <br />Core ID <br />Bituminous <br />Depth <br />(inches) <br />Aggregate <br />Depth ᵠ <br />(inches) <br />Recommended <br />Maintenance <br />Activity <br />Notes <br />1 6.25 9 <br />Full depth <br />reclamation <br />(FDR) <br />Core was in good condition. <br />The top lift was 2.5 inches. All <br />layers were bonded together <br />well. Subgrade material was <br />found to be clay. <br />2 6.25 3 <br />Core was in fair condition and <br />there was debonding between <br />pavement lifts. The top lift <br />was 2 inches. Subgrade <br />material was found to be <br />sand. <br />3 6 8 <br />Mill and Overlay <br />Core was in fair condition and <br />it was starting to show signs <br />of deterioration, losing fines <br />and binder. The top lift was 2 <br />inches. Subgrade material <br />was found to be sand. <br />4 6.5 8 <br />Core was in poor condition <br />exhibiting raveling between <br />pavement lifts. The top lift <br />was 2 inches. Subgrade <br />material was found to be clay. <br />5 6 11 <br />Core was in good condition. <br />The top lift was 2 inches. All <br />layers were bonded together <br />well. Subgrade material was <br />found to be clay. <br />6 6 8 <br />Core was in fair condition and <br />it was starting to show signs <br />of deterioration, losing fines <br />and binder. The top lift was 2 <br />inches. Subgrade material <br />was found to be clay. <br />7 5.75 7 <br />Core was in good condition. <br />The top lift was 1.5 inches. <br />Subgrade material was found <br />to be clay. <br />8 N/A N/A <br />Core was not obtained due to <br />the uniformity of the roads <br />observed. <br />9 7 10 <br />There was delamination <br />between pavement lifts. The <br />top lift was 2 inches. <br />Subgrade material was found <br />to be sand. <br />ᵠ Aggregate material was observed to be limestone at all core locations.
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