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The nominal mix corresponds approximately to grade M15 is

A1:1:2

B1:2:4

C1:4:8

D1:3:6

Answer:

B. 1:2:4

Read Explanation:

Grades of concrete are M5 -1:5:10. M7.5 -1:4:8, M10 -1:3:6, M15- 1:2:4, M20 -1:1.5:3 andM25 - 1:1:2


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