SECTION 303 – ASPHALT-STABILIZED DRAINAGE COURSE
303.01 Description
This Section describes the requirements for constructing asphalt-stabilized drainage course.
303.02 Materials
303.02.01 Materials
Provide materials as specified: Asphalt-Stabilized Drainage Course ................................ ................................ ................................ ............. 902.06
303.02.02 Equipment
Provide equipment as specified: HMA Paver ................................ ................................ ................................ ................................ ................. 1003.03 HMA Compactor ................................ ................................ ................................ ................................ ........ 1003.05 Vibratory Drum Compactor ................................ ................................ ................................ ......................... 1003.06 Bituminous Material Distributor ................................ ................................ ................................ .................. 1003.07 HMA Plant................................ ................................ ................................ ................................ .................. 1009.01 HMA Trucks ................................ ................................ ................................ ................................ ............... 1009.02
303.03 Construction
303.03.01 Asphalt-Stabilized Drainage Course
A.Paving Plan. At least 20 days before the start of placing the asphalt -stabilized drainage course, submit a detailed plan of operation to the RE for approval as specified in 401.03.07.A.
B.Weather Limitations. Comply with the weather limitations as specified in 401.03.07.B.
C.Transportation and Delivery of HMA. Transport and deliver HMA as specified in 401.03.07.D.
E.Compacting. Compact as specified in 401.03.07.F. Ensure compaction is completed before the material temperature is less than 175 °F.
F.Thickness Requirements. Ensure that the thickness of the drainage course is within ±1/4 inch of the specified thickness and that the elevation of the compacted course is within 1/4 inch of the required elevation. The RE will check elevations of the asphalt-stabilized drainage course as specified in 202.03.03.D.
G.Protecting. Protect the drainage course from damage and contamination. Remove and replace damaged and contaminated areas. Only allow equipment on the drainage course that is necessary for the construction of the subsequent pavement course. If staging requires opening to traffic, then r emove loose material from the traveled way, shoulder, and auxiliary lanes before opening to traffic. Open to traffic or construction equipment, including paving equipment, only after the surface temperature is less than 140 °F.
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Source: Standard Specifications for Road and Bridge Construction, 2019 (rev. 2022-12-21) Edition. Pages 179–179 of 651. View official source ↗