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Table 7 Compressive strength test results of specimens embedded with steel reinforcement.

From: The Effect of Rebar Embedment and CFRP Confinement on the Compressive Strength of Low-Strength Concrete

Specimen name Compressive strength (MPa) Specimen compressive strength at rebar slip (MPa) The final output of rebar from the concrete body (mm) Axial cracking strain (mm/mm, %) Maximum of rebar axial strain (μstrain) Axial ultimate strain (mm/mm, %) Average of compressive strength (MPa)
C14.77D8L3.5-1 19.57 19.42 2.5 0.26 0.37 19.55
C14.77D8L3.5-2 19.53 19.12 3 0.24 650.7 0.36
C14.77D8L5.5-1 19.91 19.51 4 0.29 0.38 19.88
C14.77D8L5.5-2 19.86 18.76 4 0.3 753.4 0.39
C14.77D10L3.5-1 21.77 21.41 1.5 0.32 0.39 21.53
C14.77D10L3.5-2 21.29 21.01 1 0.33 536.5 0.4
C14.77D10L5.51 22.65 21.66 1.5 0.32 0.42 22.61
C14.77D10L5.5-2 22.57 21.70 1 0.33 536.5 0.41
C12.45D8L3.5-1 15.88 15.27 3 0.23 0.31 16.24
C12.45D8L3.5-2 16.21 15.61 2.5 0.21 519.5 0.33
C12.45D8L5.5-1 16.73 16.21 4 0.29 0.38 17.08
C12.45D8L5.5-2 17.06 16.56 4 0.31 572.5 0.39
C12.45D10L3.5-1 17.18 16.63 2 0.32 0.35 17.16
C12.45D10L3.5-2 17.14 16.58 2.5 0.3 395.7 0.36
C12.45D10L5.5-1 17.36 16.90 1.8 0.33 0.34 17.28
C12.45D10L5.5-2 17.25 16.74 2.2 0.29 343.2 0.32