For low cost road, the consultant suggests a target aggregate blend. You have two sources but you may need to find a 3rd source to meet the target blend. Please provide an expected gradation for the 3rd source (if required) and find blend percentage from each source. (Max 2% variation from target blend is allowed). You will need to use at least 15% from each source in the job mix. Size Passing Passing Passing Passing Passing Passing 1-1/2 1 3/4 1/2 3/8 #4 Passing #8 Passing # 16 Passing #30 Passing # 50 Passing #100 Passing #200 Size (mm) Target Grading (passing) 100 100 100 95.52 84.34 64.58 50.27 36.36 25.45 17 10.15 5.757 (37.5) (25.0) (19.0) (12.5) (9.5) (4.75) (2.36) (1.18) (0.60) (0.30) (0.15) (0.075) Source 1 (Passing) 100 100 100 86 52 10 7 99 5 4 2.8 Source 2 (passing) 100 100 100 100 100 90 69 56 47 36 23 12 Source 3 (passing) ? ? ? ? ? ? ? ? ? ? ? 22 ?