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I I I I I I I I I I I I I I I I I I I s= n I(X2)-(2:>Y n(n -1) (3) Calculate the upper quality index (Qu): Q _ USL - X u - S (4) Calculate the lower quality index (QLl: Q _ X - LSL L - s (5) From Table 334-8, determine the percentage of work below the USL (Pu). (6) From Table 334-8, determine percentage of work above the LSL (PLl Note: If USL or LSL is not specified; percentages within (USL or LSL) will be 100. (7) If Qu or QL is a negative number, then calculate the percent within limits for Qu or QL as follows: enter Table 334-8 with the positive value of Qu or QL and obtain the corresponding percent within limits for the proper sample size. Subtract this number from 100.00. The resulting number is the value to be used in the next step (Step 8) for the calculation of quality level. (8) Calculate the percent within limits (PWL) = (Pu + PLl - 100 (9) Calculate the Pay Factor (PF) for each quality characteristic using the equation given in 334-8.2.2.2. Table 334-7 Specification Limits Quality Characteristic Specification Limits Passing No.8 [2.36 mm] sieve ( percent) Target :t 3.1 Passinq No. 200 [75 11m] sieve ( percent) Target + 1.0 Asphalt Content ( percent) Target :t 0.40 Air Voids - Coarse Mixes ( percent) 4.00 + 1.40 Air Voids - Fine Mixes ( percent) 4.00 :t 1.20 Density - Coarse Mixes ( percent of Gmm): 94.50 + 1.30 Density - Fine Mixes ( percent of Gmm): 93.00 + 2.00, - 1.20 (1) Note (1): If the Engineer (or Contract Documents) limits compaction to the static mode only, the specification limits are as follows: 92.00 + 3.00, -1.20. No additional compensation, cost or time, shall be made. Table 334-8 Percent Within Limits Quality Index Percent within Limits for Selected Sample Size n = 3 n = 4 n = 5 n = 6 0.00 50.00 50.00 50.00 50.00 0.05 51.38 51.67 51.78 51.84 March 2007 01000-69 03-4122.0