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<br />(0) The aggregate shall conform to the requirements of <br />Section 3138 for Class 5 aggregate modified to permit a minimum of <br />1 percent passing the No. 200 sieve. <br /> <br />~35 <br /> <br />(b) The bituminous material for the prime coat shall be <br />MC-O or Me-I and shall be applied to the prepared sub-base at the <br />rate designated by the Engineer between 0..1 gallon and 0.3 gallon per <br /> <br />~) <br /> <br />square yard. <br /> <br />(c) The bituminous material for the mixture shall be MC.2 <br />or Me-3 and shall be applied at a total rate designated by the Engineer <br /> <br />of not less than 0.5 gallon nor more than 0.70 gallon per square yard <br /> <br />per inch of depth, depending on the character of the aggregate. <br /> <br />(d) Spreading of the bituminous mixture shall be done only <br />o <br />when the air temperature is 50 F. or higher. <br /> <br />(e) Pneumatic-tired rollers shall weigh not less than 200 <br /> <br />pounds per inch of rolling width. <br /> <br />(3) Section 2331 Plant-Mixed Bituminous Surface. <br /> <br />The plant-mixed bituminous surface shall be constructed 1n <br /> <br />accordance with the material and construction requirements of Sec- <br /> <br />tion 2331, except: <br /> <br />(a) The bituminous material for the tack coat shall be <br /> <br />MC-2 or MC-3 and shall be applied on the surface of the bituminous <br /> <br />base at the rate directed by th~ Engineer, not to exceed 0.05 gallon <br /> <br />per square yard. <br /> <br />(b) The bituminous material for the mixture shall be AC-I. <br /> <br />) <br /> <br />150-200 penetration. The percentage by weight of the bituminous <br />material in the mixture shall be as directed by the Engineer within <br /> <br />the range of 4.5 to 5.3. depending on the character of the aggregate. <br /> <br />(Note: One square yard of bituminous mixture one inch thick weighs <br /> <br />approximately 100 pounds.) <br /> <br />(c) The aggregate shall conform to the requirements of <br /> <br />Section 3139 for BA-2. <br />