alleryStart learning →Per §5.4.5 (Kelly Ball Test), the metal hemispherical indenter used has a diameter of about 15 cm and weighs about:
A1.3 kg
B13.6 kg
C5.0 kg
D50.0 kg
Answer & Solution
Correct answer: B. 13.6 kg
1. §5.4.5: 'In Kelly Ball test this indenter is 15 cms in diameter and is a metal hemisphere weighing 13.6 Kgs.'
2. The test is read to the nearest 6 mm of penetration; results are more consistent than slump but require a larger sample and cannot be used in thin members.
_Source: IGNOU ET-522 Block-2 Unit-5 Workability & Fresh Concrete-I, §5.4.5, pp. 12-13_
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