Per Table 1.5, the soundness of Ordinary Portland Cement tested by the Le Chatelier method must not exceed:
A{'text': '5 mm', 'label': 'A'}
B{'text': '50 mm', 'label': 'B'}
C{'text': '20 mm', 'label': 'C'}
D{'text': '10 mm', 'label': 'D'}
Answer & Solution
Correct answer: D. {'text': '10 mm', 'label': 'D'}
1. Table 1.5 in §1.9 lists Le Chatelier soundness limit as 'not exceeding 10 mm' for all OPC grades (33, 43 and 53), low heat, rapid hardening, Portland Pozzolana, Portland slag and hydrophobic Portland cements.
2. Super sulphated cement is the exception at 5 mm.
_Source: IGNOU ET-522 Block-1 Unit-1 Cement, Table 1.5, §1.9, p. 13_
Related questions
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