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XXIII.COMPOSITION OF BITUMINOUS MIXTURES <br />A.Prevailing Specifications: 2020, INDOT Standard Specifications Section 402 <br />B.Additions: <br />1. All material used shall be HMA Surface No. 11, PG 64-22, with no RS materials and <br />incorporating only limestone aggregate, at no additional cost to the owner. <br />2. The Contractor shall submit a job mix formula for approval five (5) working days prior to the <br />first patch being placed. Job mix formula must be submitted on Form TD-451 along with <br />Marshall Design Work Sheet Form TD-515. The Contractor will not be allowed to proceed with <br />the placement of asphalt without an approved job mix formula. The Contractor shall notify the <br />city 48 hours prior to placing any asphalt. <br />3. The Contractor shall hire an outside approved independent laboratory to take the sample and <br />perform the testing. Test results shall be given to the city representative within 48 hours. The <br />contractor shall contact the city representative in order to coordinate the sample locations and <br />schedule prior to any sampling. The City reserves the right to choose the sample locations if <br />onsite during the sampling. <br /> <br />XIX. CRACK SEALING AND FILLING <br />A. Prevailing Specifications: 2020, INDOT Standard Specifications Section 408, 902, 906 <br />B. Additions: <br /> <br />1. Transverse reflective cracks spanning full lane width shall be sealed. All other cracks shall be filled. <br />2. Sealing and filling operations shall not be conducted on a wet surface or when the ambient <br />temperature is below 40 degrees Fahrenheit. <br />3. Before sealing or filling, cracks shall be cleaned by blowing with compressed air. Airflow shall have <br />a minimum pressure of 100 psi and maximum pressure of 150 psi. <br />4. Cracks shall be free of dirt, debris, dust, and moisture before sealing or filling. <br />5. The Contractor may use a hot air lance to clean and dry wet cracks before sealant application in <br />order to continue working in wet conditions. <br />6. Crack Sealing: <br />a. Work shall be performed when ambient temperatures are between 40°F and 65°F. <br />b. ASTM D 6990 Type II sealant shall be used for sealing cracks. <br />c. Cracks 1/2 in. or less in width, shall be routed with a routing machine capable of cutting a <br />uniform shape to form a reservoir not exceeding 3/4 in. wide with a minimum depth of 3/4 in. <br />Cracks shall be sealed with hot poured joint sealant to within 1/4 in. below the surface in <br /> <br />7. Crack Filling <br />a. Cracks shall be filled completely and flush or overbanded with AE-90S. Overbands must not <br />exceed ¼ in. in thickness or 5 in. in width. <br />8. All excess asphalt material shall be removed from the pavement. <br />9. Asphalt materials shall not be applied in such a way that existing pavement markings are covered. <br />10. Sealants and fillings shall cure for one hour before street is opened to traffic or fine aggregate must <br />be applied to cover filled cracks to minimize tracking. Any excess cover material shall be removed <br />from pavement within 24 hours when directed. <br />11. Measurement and Payment: <br />a. The cost of all materials, routing, cleaning, and any necessary incidentals shall be included in <br />the pay items specified in the proposal: <br /> <br />Cracks in Asphalt Pavement, Fill LFT <br /> <br />XX. ASPHALT EMULSION <br />A. Prevailing Specifications: 2020, INDOT Standard Specifications Section 902 <br />B. Additions: <br />1. Asphalt emulsion shall be composed of an intimate homogenous suspension of a base asphalt, an <br />emulsifying agent, and water. Asphalt emulsion may contain additives to improve handling and <br />Version 4/2/2019 Page - 9 Public Works Quote <br /> <br />