HM Pacific Northwest Inc. 5/18/2023

I 1 An entire lot with a CPF of less than 0.75 will be rejected. 2 3 5-04.3(12) Joints 4 5 5-04.3(12)A HMA Joints 6 7 5-04.3(12)A1 Transverse Joints I 8 The Contractor shall conduct operations such that the placing of the top or wearing 9 course is a continuous operation or as close to continuous as possible. Unscheduled 10 transverse joints will be allowed and the roller may pass over the unprotected end of the I 11 freshly laid mixture only when the placement of the course must be discontinued for such 12 a length of time that the mixture will cool below compaction temperature. When the Work 13 is resumed, the previously compacted mixture shall be cut back to produce a slightly I 14 beveled edge for the full thickness of the course. 15 16 A temporary wedge of HMA constructed on a 20H:1V shall be constructed where a I 17 transverse joint as a result of paving or planing is open to traffic. The HMA in the 18 temporary wedge shall be separated from the permanent HMA by strips of heavy 19 wrapping paper or other methods approved by the Engineer. The wrapping paper shall 20 be removed and the joint trimmed to a slightly beveled edge for the full thickness of the 21 course prior to resumption of paving. 22 I 23 The material that is cut away shall be wasted and new mix shall be laid against the cut. 24 Joint sealant and rollers or tamping irons shall be used to seal the joint. 25 I 26 5-04.3(12)A2 Longitudinal Joints 27 The longitudinal joint in any one course shall be offset from the course immediately I 28 below by not more than 6 inches nor less than 2 inches. All longitudinal joints 29 constructed in the wearing course shall be located at a lane line or an edge line of the 30 Traveled Way. A notched wedge joint shall be constructed along all longitudinal joints in I 31 the wearing surface of new HMA unless otherwise approved by the Engineer. The 32 notched wedge joint shall have a vertical edge of not less than the maximum aggregate 33 size or more than '/z of the compacted lift thickness and then taper down on a slope not 34 steeper than 4H:1V. The sloped portion of the HMA notched wedge joint shall be I 35 uniformly compacted. 36 37 5-04.3(12)B Bridge Paving Joint Seals I 38 39 5-04.3(12)B1 HMA Sawcut and Seal 40 Prior to placing HMA on the bridge deck, establish sawcut alignment points at both ends 41 of the bridge paving joint seals to be placed at the bridge ends, and at interior joints 42 within the bridge deck when and where shown in the Plans. Establish the sawcut I 43 alignment points in a manner that they remain functional for use in aligning the sawcut 44 after placing the overlay. 45 I I 2023 FEDERAL OVERLAY FEDERAL AID#STBGUL-2715(011) I WO#3788 March 2,2023 SP-90