M25 and the number after M denotes the characteristic compressive strength of the concrete.网页What is the ratio of Grades M10 M15 M20 M25 M30 M35 M40 Design Mix Followed No where code IS is specified mix ratios for grade of concrete … ppt on concrete mix design m15 grade M15 Mixing Concrete Ppt mixing ratio in m25 concrete what is the concrete coarse aggregate use in design mix m15 m20 m25 m30 grade concrete Get More Info …网页What is the ratio of Grades M10 M15 M20 M25 M30 M35 M40 Answer brajesh kaurav ratio of M 1 3 6 M 1 2 4 M 1 1 5 3 that rattio is nominal mix basis above M20 than mix design . concrete mix grades ratios in m15 to m4o Standard Mix Ratio Of M10 M15 M20 M25 M30 M35 Pdf file of concrete ratio of mix design code from m15 to m80 Grade of As per Mix ...The concrete mix ratio for floors is M15 (1:2:4). Concrete grades M20 and M25 The concrete mix ratio for the M20 is (1:1.5:3). M20 has a 20 N/mm 2 (MPa),