Granite Construction Company 5/1/2018

1 1 I 21x X in = n 3 III 4 Where: 5 x = individual compaction test values for each sublot in the lot. 6 Zx = summation of individual compaction test values 7 n = total number test values I 8 9 2. Compute the sample standard deviation, "S", for each constituent: 10 z z 11 S = n1 x —(1X) I _ n(n—1) 12 13 Where: I 14 >x2= summation of the squares of individual compaction test values 15 (Zx)2 = summation of the individual compaction test values squared 16 I 17 3. Compute the lower quality index (QL): 18 Xn, —LSL 19 Q, = S I 20 21 Where: I 22 LSL = 91.5 23 24 4. Determine PL (the percent within the lower Specification limit which I 25 corresponds to a given QL) from Table 1. For negative values of QL, PL is equal 26 to 100 minus the table PL. If the value of QL does not correspond exactly to a 27 figure in the table, use the next higher value. I 28 29 5. Determine the quality level (the total percent within Specification limits): 30 31 Quality Level = PL 1 32 33 6. Using the quality level from step 5, determine the composite pay factor (CPF) 34 from Table 2. I 35 36 7. If the CPF determined from step 6 is 1.00 or greater: use that CPF for the 37 compaction lot; however, the maximum HMA compaction CPF using an LSL = I 38 91.5 shall be 1.05. 39 40 8. If the CPF from step 6 is not 1.00 or greater: repeat steps 3 through 6 using an 41 LSL = 91.0. The value thus determined shall be the HMA compaction CPF for 42 that lot; however, the maximum HMA compaction CPF using an LSL = 91.00 43 shall be 1.00. 44 I45 1-06.2(2)D4 Quality Level Calculation 46 The first paragraph (excluding the numbered list) is revised to read: 47 Ill HOT MIX ASPHALT OVERLAY-2018 PAGE 3 OF 53 March 6,2018 I WORK ORDER#3667 AMENDMENTS TO STANDARD PROVISIONS