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35N/mm2

the above answer is terrible. at 14 days there is no guarantee of what the strength will be, as strength gain is rapid with pue OP it will tend t be greater than 50% of the target characteristic strength; however, with any pozzolans in the mix (e.g. PFA/GGBA) the strength gain over time is slower and can be espected to achieve greater strengths than that of pure OPC

the question is too vague to answer. the mix design is pivotal in calculating strength

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13y ago
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12y ago

The compreesive strength of M35 grade of concrete at 3rd day would be 15-18N/mm2 as gainning of strength is faster in the initial day

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Q: What is the compressive strength of M35 concrete at 14 days?
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