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k <br /> 300 PRIME AND TACK COATS FOR BASE COURSES — RATE OF APPLICATION. <br /> (REV 64040) (FA 84640) (141 ) <br /> SUBARTICLE 300 - 8 . 4 (Page 240) is deleted and the following substituted : <br /> 300-8 .4 Rate of Application : Use a rate of application as defined in Table 300- 1 . Control <br /> the rate of application to be within plus or minus 0 . 01 gal . per square yard of the target <br /> application rate . The target application rate may be adjusted by the Engineer to meet specific <br /> field conditions . Determine and record the rate of application a minimum of twice per day, once <br /> at the beginning of each day ' s production and again as needed to control the operation . When <br /> using RA- 550 , multiply the target rate of application by 0 . 6 . <br /> Table 300- 1 <br /> Tack Coat Application Rates <br /> Target .Tack Rate <br /> Asphalt Mixture Type Underlying Pavement Surface (gal/yd2) <br /> Newly Constructed Asphalt Layers 0 . 02 minimum <br /> Base Course , Structural Course , Milled Surface or Oxidized and 0 . 06 <br /> Dense Graded Friction Course Cracked Pavement <br /> Concrete Pavement 0 . 08 <br /> Open Graded Friction Course Newly Constructed Asphalt Layers 0 . 05 <br /> Milled Surface 0 . 07 <br /> 320 HOT BITUMINOUS MIXTURES — PLANT, METHODS , AND EQUIPMENT. <br /> (REV 1 -840) (FA 2-240) (740) <br /> SUBARTICLE 320 -2 . 2 (Pages 241 — 244) is deleted and the following substituted : <br /> 320-2 . 2 Electronic Weigh Systems : Equip the asphalt plant with an electronic weigh <br /> system that : has an automatic printout, is certified every six months by an approved certified <br /> scale technician, and meets weekly comparison checks with certified truck scales as specified in <br /> 320-2 . 2 . 4 . Weigh all plant produced hot mix asphalt on the electronic weigh system , regardless <br /> of the method of measurement for payment . <br /> Include , as a minimum, the following information on the printed delivery ticket : <br /> (a) Sequential load number. <br /> (b) Project number. <br /> (c) Date . <br /> (d) Name and location of plant. <br /> (e) Mix design number. <br /> (f) Place for hand-recording mix temperature . <br /> (g) Truck number . <br /> (h) Gross , tare , and net tonnage per truck ( as applicable) . <br /> (i) Daily total tonnage of mix for the mix design . <br /> - 61 - <br /> FPID ( S ) : 423186 - 1 - 58 - 01 <br />