European Journal of Scientific Research - EuroJournals

Blast-Hole Cuttings: An Indicator of Drill Bit Wear in Quarries 734
Table 38: Sieve Analysis of Drill Cuttings from Blast-hole Seven (Sonel Boneh, Quarry, Ibadan)
Sieve Size (µm) MeanSieve
Size (µm)
Wt
Retained(g)
%Wt
Retained%
Cum Wt
Retained(g)
Cum Wt
Passing(g)
Cum %
Retained
Cum %
Passing
850 850 121.60 30.40 400.00 0 100.00 0
-850 + 600 600 28.40 7.10 278.40 121.80 69.60 30.40
-600 + 425 425 28.64 7.16 250.00 150.00 62.50 37.50
-425 + 300 300 38.64 9.66 221.36 178.64 55.34 44.66
-300 + 212 212 50.92 12.73 182.72 217.28 45.68 54.32
-212 + 150 150 54.16 13.54 131.80 268.20 32.95 67.05
-150 + 75 75 77.64 19.41 77.64 322.38 19.41 80.59
-75 + 63 63 0 0 0 400.00 0 100.00
Table 39: Sieve Analysis of Drill Cuttings from Blast-hole Eight (Sonel Boneh, Quarry, Ibadan)
Sieve Size (µm) MeanSieve
Size (µm)
Wt
Retained(g)
%Wt
Retained%
Cum Wt
Retained(g)
Cum Wt
Passing(g)
Cum %
Retained
Cum %
Passing
850 850 110.40 27.60 400.00 0 100.00 0
-850 + 600 600 28.00 7.00 289.60 110.40 72.40 27.60
-600 + 425 425 31.44 7.86 261.60 138.40 65.40 34.60
-425 + 300 300 38.24 9.56 230.16 169.84 57.54 42.46
-300 + 212 212 51.72 12.93 191.92 208.08 47.98 52.02
-212 + 150 150 56.16 14.04 140.20 259.80 35.05 64.99
-150 + 75 75 84.04 21.01 84.04 315.96 21.01 79.99
-75 + 63 63 0 0 0 400.00 0 100.00
Table 40: Sieve Analysis of Drill Cuttings from Blast-hole Nine (Sonel Boneh, Quarry, Ibadan)
Sieve Size (µm) MeanSieve
Size (µm)
Wt
Retained(g)
%Wt
Retained%
Cum Wt
Retained(g)
Cum Wt
Passing(g)
Cum %
Retained
Cum %
Passing
850 850 101.68 25.42 400.00 0 100.00 0
-850 + 600 600 25.60 6.40 298.32 131.68 74.58 25.42
-600 + 425 425 25.84 6.46 272.72 127.28 68.18 31.82
-425 + 300 300 38.56 9.64 246.88 153.12 61.72 38.28
-300 + 212 212 56.12 14.03 208.32 371.68 52.08 47.92
-212 + 150 150 57.36 14.34 152.20 247.60 38.05 61.95
-150 + 75 75 94.84 23.71 94.84 305.16 23.71 76.29
-75 + 63 63 0 0 0 400.00 0 100.00
Table 41: Sieve Analysis of Drill Cuttings from Blast-hole Ten (Sonel Boneh, Quarry, Ibadan)
Sieve Size (µm) MeanSieve
Size (µm)
Wt
Retained(g)
%Wt
Retained%
Cum Wt
Retained(g)
Cum Wt
Passing(g)
Cum %
Retained
Cum %
Passing
850 850 96.00 24.00 400.00 0 100.00 0
-850 + 600 600 20.00 5.00 304.00 96.00 76.00 24.00
-600 + 425 425 20.24 5.06 284.00 116.00 71.00 29.00
-425 + 300 300 40.28 10.07 263.76 136.24 65.94 34.06
-300 + 212 212 59.32 14.83 223.48 176.52 55.87 44.13
-212 + 150 150 59.76 14.94 164.16 235.84 41.04 58.96
-150 + 75 75 104.40 26.10 104.40 295.60 26.10 73.90
-75 + 63 63 0 0 0 400.00 0 100.00