The additional cover thickness to be provided in reinforced concrete members that are totally immersed in seawater is
A
25 mm
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B
30 mm
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C
35 mm
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D
40 mm
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Solution
The correct option is D 40 mm Correct answer should be 45 mm as per Table 3 and Table 16 of IS 456 : 2000. Since, 45 mm is not in option so 40 mm is most appropriate option for concrete grade M35 and above as per note of Table 16 of IS 456 : 2000.