Which one meets the criteria of target mean strength ? Which one is economical ? Which one is the least applicable ? A comprehensive comparison of these methods would be great.
Regards.
British standards and American concrete institute is more or less accurate, and does not have any tolerance & deviations.
While Indian standard is approximate method and it has deviations and tolerance.
When comparing with cost ACI is economical.
I think all these varies according to the experimental places where they were conducted and formulas were constructed. So for south asian countries IS is most suitable as it mostly resembles our environmental condition..
You can check one research item I hav e recommended .. it will be useful to u
I disagree with Pawan Bhattarai suggestion.
Why because ACI is completely based on specific gravity and density of the materials used.
If mix design varies according to the experimental places
Then
Specific gravity and density of the materials varies from place to place?
Does specific gravity and density of the materials used for mix design varies from place to place ?
Formulas adopted for mix calculation alone varies.
The calculated mix will be moreover similar.
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