European Journal of Scientific Research - EuroJournals
European Journal of Scientific Research - EuroJournals
European Journal of Scientific Research - EuroJournals
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Blast-Hole Cuttings: An Indicator <strong>of</strong> Drill Bit Wear in Quarries 728<br />
Table 14: Sieve Analysis <strong>of</strong> Drill Cuttings from Blast-hole Fourteen (Geovertrag Quarry, Ado- Ekiti)<br />
Sieve Size (µm) MeanSieve<br />
Size (µm)<br />
Wt<br />
Retained(g)<br />
%Wt<br />
Retained%<br />
Cum Wt<br />
Retained(g)<br />
Cum Wt<br />
Passing(g)<br />
Cum %<br />
Retained<br />
Cum %<br />
Passing<br />
850 850 112.00 28.00 400.00 0 100.00 0<br />
-850 + 600 600 20.80 5.20 288.00 112.00 72.00 28.00<br />
-600 + 425 425 22.40 5.60 267.20 132.80 66.80 33.20<br />
-425 + 300 300 43.20 10.80 244.80 155.20 61.20 38.80<br />
-300 + 212 212 52.80 13.20 201.60 198.40 50.40 49.60<br />
-212 + 150 150 52.96 13.24 148.80 251.20 37.20 62.80<br />
-150 + 75 75 95.84 23.96 95.84 304.16 23.96 76.04<br />
-75 + 63 63 0 0 0 400.00 0 100.00<br />
Table 15: Sieve Analysis <strong>of</strong> Drill Cuttings from Blast-hole Fifteen (Geovertrag Quarry, Ado- Ekiti)<br />
Sieve Size (µm) MeanSieve<br />
Size (µm)<br />
Wt<br />
Retained(g)<br />
%Wt<br />
Retained%<br />
Cum Wt<br />
Retained(g)<br />
Cum Wt<br />
Passing(g)<br />
Cum %<br />
Retained<br />
Cum %<br />
Passing<br />
850 850 107.44 26.86 400.00 0 100.00 0<br />
-850 + 600 600 20.80 5.20 292.56 107.44 73.14 26.86<br />
-600 + 425 425 22.40 5.60 271.76 128.24 67.94 32.06<br />
-425 + 300 300 43.20 10.80 249.36 150.64 62.34 37.66<br />
-300 + 212 212 52.80 13.20 206.16 193.84 51.54 48.46<br />
-212 + 150 150 52.96 13.24 153.36 246.64 38.34 61.66<br />
-150 + 75 75 100.40 25.10 100.40 299.60 25.10 74.90<br />
-75 + 63 63 0 0 0 400.00 0 100.00<br />
Table 16: Sieve Analysis <strong>of</strong> Drill Cuttings from Blast-hole Sixteen (Geovertrag Quarry, Ado- Ekiti)<br />
Sieve Size (µm) MeanSieve<br />
Size (µm)<br />
Wt<br />
Retained(g)<br />
%Wt<br />
Retained%<br />
Cum Wt<br />
Retained(g)<br />
Cum Wt<br />
Passing(g)<br />
Cum %<br />
Retained<br />
Cum %<br />
Passing<br />
850 850 107.44 26.86 400.00 0 100.00 0<br />
-850 + 600 600 20.80 5.20 292.56 107.44 73.14 26.86<br />
-600 + 425 425 22.40 5.60 271.76 128.24 67.94 32.06<br />
-425 + 300 300 43.20 10.80 249.36 150.64 62.34 37.66<br />
-300 + 212 212 52.80 13.20 206.16 193.84 51.54 48.46<br />
-212 + 150 150 52.96 13.24 153.36 246.64 38.34 61.66<br />
-150 + 75 75 100.40 25.10 100.40 299.60 25.10 74.90<br />
-75 + 63 63 0 0 0 400.00 0 100.00<br />
Table 17: Sieve Analysis <strong>of</strong> Drill Cuttings from Blast-hole One (Johnson Construction Ltd, Quarry, Akure)<br />
Sieve Size (µm) MeanSieve<br />
Size (µm)<br />
Wt<br />
Retained(g)<br />
%Wt<br />
Retained%<br />
Cum Wt<br />
Retained(g)<br />
Cum Wt<br />
Passing(g)<br />
Cum %<br />
Retained<br />
Cum %<br />
Passing<br />
850 850 140.40 35.10 400.00 0 100.00 0<br />
-850 + 600 600 41.60 10.40 259.60 191.20 64.90 35.10<br />
-600 + 425 425 38.40 9.60 218.00 182.00 54.50 45.50<br />
-425 + 300 300 44.96 11.24 179.60 220.40 44.90 55.10<br />
-300 + 212 212 37.56 9.39 134.64 265.36 33.66 66.34<br />
-212 + 150 150 34.40 8.60 97.08 302.92 24.27 75.73<br />
-150 + 75 75 62.68 15.67 62.68 337.32 15.67 84.33<br />
-75 + 63 63 0 0 0 400.00 0 100.00
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