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CITY OF EVERETT SPECIAL PROVISIONS <br /> <br />3rd Ave Water Quality Facility Division 5 – SURFACE TREATMENTS September 12, 2024 <br />AND PAVEMENTS <br />WO No. – UP 3775 SP - 154 <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 /> <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 /> <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 <br />asphalt binder throughout the mineral materials is ensured. <br />Ensure the temperature of the HMA when discharged does not exceed the <br />optimum mixing temperature by more than 25°F as shown on the reference mix <br />design report or as approved by the Engineer. Also, when a WMA additive is <br />included in the manufacture of HMA, ensure the discharge temperature of the <br />HMA does not exceed the maximum recommended by the manufacturer of the <br />WMA additive. A maximum water content of 2 percent in the mix, at discharge, <br />will be allowed providing the water causes no problems with handling, stripping, or <br />flushing. If the water in the HMA causes any of these problems, reduce the <br />moisture content in accordance with Engineer’s directions. <br />Storing or holding of the HMA in approved storage facilities for less than 24 hours <br />will be permitted with Engineer’s approval. Engineer will reject HMA held for more <br />than 24 hours after mixing. Dispose of rejected HMA at no expense to the City. <br />Provide the storage facility having an accessible device, indicating the amount of <br />material in storage, located at the top of the cone or about the third point. <br />Engineer will NOT accept HMA from the storage facility when the HMA in storage <br />is below the top of the cone of the storage facility; except, as the storage facility is <br />being emptied at the end of the working shift.