Laserfiche WebLink
I <br /> CITY OF EVERETT SPECIAL PROVISIONS <br /> DIVISION 5 — SURFACE TREATMENTS AND PAVEMENTS <br /> Supplement Division 5 of the Standard Specifications by adding the following: <br /> 5-06 PAVEMENT PATCHING <br /> (******) <br /> 5-06.1 Description <br /> ' This Work shall consist of the reconstruction and patching of trenches and other <br /> excavations in paved streets and other paved areas. <br /> 5-06.2 Materials <br /> Provide materials conforming to the requirements specified for the materials in Sections 5- <br /> 04 & 5- 05 of the Standard Specifications except as modified by these Special Provisions. <br /> For HMA pavement patching provide HMA CL 1/2", PG 64-22 as specified in Section 5-04 <br /> of the Standard Specifications. <br /> Provide asphalt for temporary pavement patch as either: cold mix asphalt (MC 250) per <br /> Section 9-02 of the Standard Specifications or hot mix asphalt (HMA CL 1/2", PG 64-22). <br /> Mineral aggregate of MC 250 shall meet the same requirements as the aggregates used in <br /> HMA CL 1/2", PG 64-22. <br /> For cement concrete base pavement patching provide Type Ill (H.E.S.) with minimum 4,000 <br /> psi 28-day compressive strength and having curing time of five days. <br /> For cement concrete surface pavement patching provide concrete mix design in <br /> accordance with 5-05.3(1) Concrete Mix Design for Paving of the Standard Specifications. <br /> Provide crushed surfacing top course used for pavement patching conforming to the <br /> requirements of 9-03.9(3) of the Standard Specifications. <br /> 5-06.3 Construction Requirements <br /> 1 5-06.3(1) General <br /> Schedule pavement patching to accommodate the demands of traffic and perform as <br /> rapidly as possible to provide maximum safety and convenience to public traffic. <br /> Placing and compact the trench backfill and the preparation and compaction of the <br /> subgrade in accordance with the various applicable sections of the Standard <br /> Specifications except as modified by these Special Provisions. <br /> Before the pavement patch is to be constructed saw cut the pavement so that the <br /> marginal edges of the patch will form a rectangular shape with straight edges and <br /> vertical faces. <br /> Provide signs, barricades, lights and other warning devices in accordance with the <br /> requirements of the "Manual on Uniform Traffic Control Devices" and they maintain 24- <br /> hours a day until the patching work is completed and ready for traffic. <br /> Complete subgrade compaction prior to the required patching. Compact subgrade to <br /> 95-percent as determined by the ASTM D2922 (nuclear method). <br /> 5-06.3(2) Cement Concrete Pavement Patch <br /> Place cement concrete pavement in accordance with 5-05.3 of the Standard <br /> Specifications and these Special Provisions after the Crushed Surfacing Top Course <br /> subgrade for the pavement has been constructed and compacted to line and grade. <br /> Perform all Work accordance with Section 5-05 of the Standard Specifications, except <br /> as modified by these Special Provisions and Standard Drawing No. 326. <br /> Hand screeding and float finishing of cement concrete pavement patch is allowable. <br /> Water Main Replacement S Division 5—SURFACE TREATMENTS January 29, 2018 <br /> AND PAVEMENTS <br /> WO No.—UP3664 SP-139 <br /> I <br />