7/31/2019 Flakiness and the Elongation Index for the given
Aggregate Sample
1/2
Experiment No 1
Determination of the Flakiness and the Elongation Index for the
given AggregateSample
Particle Size Analysis
Sieve No Diameter WeightRetained
PercentageWeight
Retained
CumulativePercent
Retained
PercentPassing
mm gm gm
2 -1/2 63 0 0 0 100
2 50 362 28.34 28.34 71.66
1 - 1/2 37.5 678 14.11 42.45 57.55
1 25 774 16.10 58.55 41.45
19 866 18.02 76.57 23.43
12.5 852 17.73 94.30 5.703/8 9.5 163 3.39 97.69 2.31
6.3 111 2.31 100 0
Sum = 4806
Cu = D60 40= = 3.08
D10 13
Cu = D302 22
= = 0.93D10 x D60 13 x 40
Created by Afzal Waseem
7/31/2019 Flakiness and the Elongation Index for the given
Aggregate Sample
2/2
Observations and Calculations for Flaky Index
Observations and Calculations for Elongation Index
Created by Afzal Waseem
Sieve Size
WeightRetained
PercentageRetained
Weight ofFlaky
Particles
IndividualFlakiness
index
WeightedFlakiness
IndexPassing Retained
inch inch gm % gm % %
2 1/2 2 1362 28.34 872.3 64.05 18.15
2 1 1/2 678 14.11 77.43 77.43 10.92
1 1/2 1 774 16.10 78.68 78.68 12.67
1 3/4 866 18.02 20.79 20.79 3.75
3/4 1/2 852 17.73 22.54 22.54 4.00
1/2 3/8 163 3.39 28.83 28.83 0.98
3/8 1/4 111 2.31 46.85 46.85 1.08
Sum = 4806 Sum = 51.55
Sieve SizeWeight
RetainedPercentage
Retained
Weight ofElongatedParticles
IndividualElongation
indexWeighted
Elongation IndexPassing Retained
inch inch gm % gm % %
2 1/2 2 1362 28.34 872.3 64.05 18.15
2 1 1/2 678 14.11 77.43 77.43 10.92
1 1/2 1 774 16.10 78.68 78.68 12.67
1 3/4 866 18.02 20.79 20.79 3.75
3/4 1/2 852 17.73 22.54 22.54 4.00
1/2 3/8 163 3.39 28.83 28.83 0.98
3/8 1/4 111 2.31 46.85 46.85 1.08
Sum = 4806 Sum = 51.55
