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CITY OF EVERETT SPECIAL PROVISIONS <br /> <br />Water Main Replacement “Y” – Ph 1 Div 5 – SURFACE TMTS & PVMTS March 2024 <br />Work Order No. UP 3814 SP-166 <br />Provide sand slurry consisting of approximately 20 percent CSS-1 emulsified <br />asphalt, approximately 2 percent portland cement, water (if required), and the <br />remainder clean Class 1 or 2 fine aggregate per section 9-03.1(2). <br />Thoroughly mix components and then pour into the cracks and joints until full. <br />The following day, top off any cracks or joints that are not completely filled <br />with additional sand slurry. After the sand slurry is placed, strike off filler flush <br />with the existing pavement surface and allow to cure. Do NOT place the HMA <br />overlay until the slurry has fully cured. The requirements of Section 1-06 will <br />not apply to the portland cement and sand used in the sand slurry. <br />In areas where HMA will be placed, use sand slurry to fill the cracks. <br />In areas where HMA will not be placed, fill the cracks as follows: <br />a. Cracks 1/4- inch to 1 inch in width – fill with hot poured sealant. <br />b. Cracks greater than 1 inch in width – fill with sand slurry. <br />Hot Poured Sealant: For cracks that are to be filled with hot poured sealant, <br />apply the material in accordance with these requirements and the <br />manufacturer’s recommendations. Furnish a Type 1 Working Drawing of the <br />manufacturer’s product information and recommendations to the Engineer <br />prior to the start of work, including the manufacturer’s recommended heating <br />time and temperatures, allowable storage time and temperatures after initial <br />heating, allowable reheating criteria, and application temperature range. <br />Confine hot poured sealant material within the crack. Clean any overflow of <br />sealant from the pavement surface. If, in the opinion of the Engineer, the <br />Contractor’s method of sealing the cracks with hot poured sealant results in <br />an excessive amount of material on the pavement surface, stop and correct <br />the operation to eliminate the excess material. <br />5-04.3(4)A2 Crack Sealing Areas Prior to Paving <br />In areas where HMA will be placed, use sand slurry to fill the cracks. <br />5-04.3(4)A3 Crack Sealing Areas Not to be Paved <br />In areas where HMA will not be placed, fill the cracks as follows: <br />a. Cracks 1/4 inch to 1 inch in width – fill with hot poured sealant. <br />b. Cracks greater than 1 inch in width – fill with sand slurry. <br />5-04.3(4)B Vacant <br />5-04.3(4)C Vacant <br />5-04.3(6) Mixing <br />After the required amount of mineral materials, asphalt binder, recycling agent and <br />anti-stripping additives have been introduced into the mixer, mix the HMA until <br />complete and uniform coating of the particles and thorough distribution of the asphalt <br />binder throughout the mineral materials is ensured. <br />Ensure the temperature of the HMA when discharged does not exceed the optimum <br />mixing temperature by more than 25°F as shown on the reference mix design report or <br />as approved by the Engineer. Also, when a WMA additive is included in the <br />manufacture of HMA, ensure the discharge temperature of the HMA does not exceed <br />the maximum recommended by the manufacturer of the WMA additive. A maximum <br />water content of 2 percent in the mix, at discharge, will be allowed providing the water <br />causes no problems with handling, stripping, or flushing. If the water in the HMA <br />causes any of these problems, reduce the moisture content in accordance with <br />Engineer’s directions. <br />Storing or holding of the HMA in approved storage facilities for less than 24 hours will <br />be permitted with Engineer’s approval. Engineer will reject HMA held for more than 24 <br />hours after mixing. Dispose of rejected HMA at no expense to the City. Provide the