Answer Happy

Question 54 options: The gradations of three aggregates A, B and
C (percent passing on selected sieves) and the specification limits
for the mix gradation are given in the attached Table 1. A trial
blend of 55% "Stone A", 25% "Sand B" and 20% "Screenings C" is
proposed. Calculate the resulting gradation. Fill in the blanks
that represented the respective percent passing for "Blend 1".
Report all percent passing to 1 decimal place. Table 1: Percent
Passing (1) (2) (3) (4) (5) (7) Sieve Stone A Sand B Screenings C
Blend 1 Gradation Specification Limits 12.5 mm 100.0 a) c) d) 100
9.5mm 70.0 b) 100.0 e) 75 - 95 4.75 mm 25.0 100.0 64.6 f) 50 - 60
2.36 mm 4.2 75.4 48.0 g) 28 - 55 75 µm 1.9 5.5 12.5 h) 0 - 8 a) b)
c) d) e) f) g) h)