how to convert m 25 concrete to m 40?
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Answer / sjtbehera
what is the meaning of the question. basically m 40 are
desigin in weigh basis i.e desigin mix.
desigin of m25 is separate from m40 desgin. that is not a
conversion method. if you make m40 you add aditional weight
of material with m25 material.
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By quality controlling
and use modern mixing
method
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Answer / t.madhu sudhan
By trial n error method at lab with respect to available cement, course aggregate and fine aggregate, we achieve required strength of a cube, is known as mix design, where as nominal design is taken upto M20 grade concrete to a total 1 M3, to a total quantity of about 1.51 M3 divided by their mixed proportion s
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