From the test specifications given in Table 5.2, show that the compactive energy in method C is 2700 kN ∙ m/m³.

Table 5.2

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Item Method A Method B Method C Diameter of mold 101.6 mm 101.6 mm 152.4 mm Volume of mold 944 cm 944 cm 2124 cm Mass (weight) 4.54 kg 4.54 kg 4.54 kg of hammer Height of hammer drop 457.2 mm 457.2 mm 457.2 mm Number of hammer 25 25 56 blows per layer of soil Number of layers of compaction 5 5 Energy of compaction 2700 kN-m/m 2700 kN m/m 2700 kN m/m Soil to be used Portion passing No. 4 (4.75-mm) sieve. May Portion passing 9.5-mm sieve. May be used if soil Portion passing 19.0-mm sieve. May be used if more than 20% by weight of mate- be used if 20% or less retained on No. 4 sieve is by weight of material is more than 20% and 20% or rial is retained on 9.5-mm less by weight is retained on 9.5-mm sieve. retained on No. 4 sieve. sieve and less than 30% by weight is retained on 19-mm sieve.