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'•• • PART 3: EXECUTION <br /> :i' :�,;. <br /> ', �i '. i <br /> 3.01 PREPARATION , - � <br /> }, <br /> �� �;,;.,;; <br /> A. Verify grade and condition of subgrade before proceeding�with bas�e ;.�;,�` <br /> construction. Do not construct base on soft subgrade. ��,; ; ; �;�: <br /> .; <br /> B. Grade and compact subgrade as required in Section 02200.' '� � �u , . <br /> . '; ;� ,���;. <br /> C. Clean and patch existing surface as required. ' <br /> 3.02 BASE AND PAVEMENT THICKNESS , � �'", <br /> ; . , <br /> A. Parking Area: 1-1/2" Wearing Course on existing surface. � <br /> B. Truck Area: 2" Wearing Course. . . <br /> 2" Bituminous Base. : <br /> 10" Gravel Base. ' I <br /> 3.03 BASE CONSTRUCTION ' <br /> _ G; <br /> A. Place and compact crushed rock base in accordance with MNDOT 2211 to : <br /> not' less than 100% of maximum density. • - ,.:'� , ,,s`!; <br /> , `�, it <br /> , <br /> 3.04 TACK COAT <br /> A. Required when bituminous surfacin or atchin is lace x 1.''` <br /> 9 P 9 P �,`over � , <br /> existing bituminous or concrete surface constructed during a ;:. <br /> previous season. :':!i <br /> :�: . <br /> B. Apply at approximate rate of 0.05 gallon per square yard� prior to <br /> placement of bituminous surfacing (MNDOT 2357) . <br /> 3.05 BITUMINOUS SURFACING . <br /> A. Place in accordance with MNDOT 2331 . �- <br /> ;.�� � �.I, <br /> , ., , <br /> B. Lay asphalt concrete at a temperature of not less than 2�0°F. with a :`� <br /> mechanical self-powered paving machine to a compacted thickness as �� ' <br /> specified above. ` � ' <br /> � . <br /> C. Roll surface with a pneumatic tire roller weighing not less than <br /> five tons. Final rolling will be by tandem steel wheel �;roller. <br /> ;;.. <br /> D. Surface Uniformity: The finished pavement shall have sllch <br /> smoothness that at no point shall it vary more than 1/4" when �; <br /> checked with a ten foot straight edge. ;�; <br /> E. All bituminous material shall have a minimum Marshall Stability of <br /> 1200 pounds and compacted to at least 98% of the maximum Marshall <br /> density in accordance with ASTM D1559. <br /> 3.06 STRIPING <br /> A. Parking Lots: Pratt & Lambert paint - (2) coats. Minimum 4" width. <br /> B. Fire Lanes and Ramps: Tape by 3M. <br /> . END SECTION 02510 ' � <br /> 02510-2 ' � <br /> 191/1/MN/1006. 1 <br />