SECTION 408 - PRIME COAT
408.01 Description. This work consists of preparing and treating an existing surface
with bituminous material, and blotter materi al if required, in accordance with these specifications and in reasonably close confor mity with the lines shown on the plans or established by the Engineer.
408.02 Materials.
408.02.1 Bituminous Materials . The bituminous material shall conform to the
applicable requirements of Section 702. The type and grade of bituminous material will be specified in the contract. The grade may be changed one step by the Engineer at no change in unit price.
408.02.2 Blotter Material. Blotter material shall be sand clay or other friable or near
friable material approved by the Engineer.
408.03 Construction Requirements.
408.03.1 Seasonal and Weather Limitations . Bituminous material shall be applied
only when permitted under the seasonal and weather limitations specified in Subsection
410.03 2.
408.03.2 Equipment. The Contractor shall provide equipment for heating and applying
bituminous material. Heating equipment and distributors shall meet the requirements of Subsection 410.03.3.
408.03.3 Preparation of Surface . The surface to be primed shall be prepared in
accordance with Section 321 free from ruts, co rrugations, segregated material, or other irregularities. It shall be conditioned as set out in Subsection 410.03.4.
408.03.4 Application of Bituminous Material . The bituminous material shall be
applied in accordance with applicable requirements of Subsection 410.03.5. The bituminous material shall be applied at a rate of 0.15 to 0.50 gallons per square unless otherwise directed by the Engineer.
408.03.5 Application of Blotter Material . The Contractor shall furnish and spread, at
no additional cost to the State, the minimum necessary quantity of approved blotter material over the prime coat where necessa ry under the requirements of Subsection 104.04.
408.03.6 Maintenance. The Contractor shall maintain the prime coat in a satisfactory
condition until covered by subsequent construction. Maintenance shall include immediate repairs of all damage that may occur. All maintenance shall be performed at the expense of the Contractor, and shall be repeated as often as necessary to properly maintain the work.
408.04 Method of Measurement . Asphalt for prime coat will be measured by the
gallon as prescribed in Subsections 109.01 a nd 410.04. Blotter material will not be paid for separately but shall be included in the unit price per gallon for prime coat.
408.05 Basis of Payment . Asphalt for prime coat, measured as prescribed above, will
be paid for at the contract unit price per gallon, which prices shall be full compensation for all incidentals necessary to complete the work. Payment will be made under: 408-A: Asphalt for Prime Coat, Grade - per gallon
Prime Coat in other states
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