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Table 8 Average UPV test result for cylinder sample

From: Experimental Investigation on Bond, Microstructure and Durability of Expired Hardened Cement Blended with Ground Granulated Blast Furnace Slag as Partial Replacement of Cement in High-Strength Concrete

Mix code

Average pulse time (µsec), T

Length of cube (mm), L

UPV (mm/µsec)

V = L/T

Concrete quality based on IS: 13311-part 1

MCc

46.7

200

4.28

Good

MR1

44.5

200

4.50

Excellent

MR2

44.2

200

4.52

Excellent

MR3

46.1

200

4.33

Good

MR4

46.8

200

4.27

Good