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Table 3 Notations for different types of mixes with respect to the degree of compaction for all gradation of aggregates

From: Effect of aggregate gradation on the mechanical strengths and permeability properties of porous concrete

Size of the aggregate (mm)

Type of compaction

Size of the aggregate (mm)

Type of compaction

Size of the aggregate (mm)

Type of compaction

4.75–10.00 (S-small)

NC

NC + 5MH

NC + 10MH

10.00–12.5 (M-medium)

NC

NC + 5MH

NC + 10MH

12.5–16.00 (L-large)

NC

NC + 5MH

NC + 10MH