What is mean concrete class c35/20. Here C35 and 20 means?
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Answer Posted / shyam sundar
in few instances we mark C35/20. in indicate C35, is
concrete grade or strenght (both same) as 35Mpa in 28 days.
20 is the agreegate size.
in other instances, internationaly they use like C40/50,
which means C40 - Cylinder strength in MPa and 50 is
equivalent Cube strength in MPa
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