00748.00 798 Section 00748 - Asphalt Concrete Pavement Repair Description
00748.00 Scope - This Work consists of excavating and removing existing asphalt concrete
surfaces, Aggregate Bases, and Aggregate Subbase s and constructing new Subbase s, Bases, and asphalt concrete surfaces to the lines and grades shown or directed. Materials
00748.10 Materials - Furnish Material s meeting the following requirements:
Aggregate Base ......................................................................................... 02630 Subbase Aggregate .......................................................................... 00641.10(b) Asphalt Concrete Pavement (ACP) .......................................... 00744 and 00745 Emulsified Asphalt Concrete (EAC) ............................................................ 00735 Stone Embankment ............................................................................... 00330.16 Subgrade Geotextile ................................................................................... 02320 Subgrade Reinforcement Geogrid .............................................................. 02320 Water .......................................................................................................... 00340
00748.16 Acceptance of Material - All Material will be accepted by visual inspection by the
Engineer. The Engin eer may perform tests to verify that the M aterials meet the appropriate Specifications . Equipment
00748.20 Equipment - Provide appropriate Equipment necessary to perform the Work according to
Sections 00320, 00330, 00340, 00350, 00620, 00641, 00735, 00744, and 00745. Construction
00748.40 Excavation - Excavate and remove material to the lines and grades shown or directed.
Dispose of the excavated material according to 00330.41(a)(5).
00748.41 Cold Plane Pavement Removal - Remove the existing Pavement to the depth, width,
grade, and Cross Section as shown or directed. Perform cold plane Pavement removal according to 00620.40.
00748.42 Geosynthetics :
a.Geotextile - Place geotextile as shown.
b.Subgrade Reinforcement Geogrid:
1.Placement - Prepare the surface receiving geogrid to a smooth, uncompacted condition to the depth shown and as follows: • Orient the geogrid rolls parallel to the R oadway centerline. • Unroll the geogrid in the same direction as Aggregate Base placement. If the geogrid shifts or becomes misaligned, realign it and anchor it according to the manufacturer's recommendations. 00748.90 799 (2) Overlaps - Overlap the geogrid a minimum of 24 inches. Overlap the geogrid in the same direction as Aggregate Base placement with the preceding layer lapped on top of the following layer.
3.Protection of Geogrid - Drive rubber tired Equipment on the geogrid at no more than 5 mph. Drive tracked Equipment on the geogrid only after placing a minimum of 6 inches of Aggregate Base on top of the geogrid. Do not turn or make sudden stops or starts on the geogrid or the Aggregate Base . During installation cover the geogrid with the Aggregate Base as soon as possible. Do not leave uncovered for more than 5 Calendar Day s.
4.Repair - Repair or replace damaged or torn geogrid according to manufacturer's recommendations at no cost to the Agency.
00748.43 Aggregates - Place Aggregate according to 00641.43 and to lines and grades shown or
directed. Compact each layer of Material until there is no reaction or yielding under the compactor.
00748.44 Asphalt Concrete - Place EAC or ACP to the lines and grades shown or directed.
Compact the EAC according to 00735.46. Compact ACP according to 00744.49 and 00745.49(d), as applicable.
00748.45 Stone Embankment - Place stone embankment according to 00330.42(d) and to lines and
grades shown or directed. Measurement
00748.80 Measurement - The quantities of asphalt concrete Pavement repair will be measured on
the area basis, of Surfacing area repaired to the full depth as shown. The Surfacing area will be determined by horizontal measurements. In areas where directed to repair to a dep th other than shown, the areas will be adjusted by converting to an equivalent number of square yards on a proportionate volume basis. EAC and ACP will be measured according to 00735.80, 00744.80, and 00745.80, as applicable. Payment
00748.90 Payment - The accepted quantities of asphalt concrete Pavement repair will be paid for at
the Contract unit price, per square yard, for the item "____ Inch Asphalt Concrete Pavement Repair". The depth will be inserted in the blank. Payment will be payment in full for furnishing and placing all Material s, and for furnishing all Equipment , labor, and Incidental s necessary to complete the Work as specified. EAC and ACP will be paid for according to 00735.90, 00744.90, and 00745.90, as applicable. No separate or additional payment will be made for excavation, cold plane Pavement removal, geosynthetics, stone embankment, Aggregate , or water.
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Source: Oregon Standard Specifications for Construction, 2024 Edition. Pages 864–865 of 1,268. View official source ↗