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Table 7 Summary of test results: columns confinement by C-FRCM jacket.

From: Tensile Performance, Lap-Splice Length and Behavior of Concretes Confined by Prefabricated C-FRCM System

Index f’co (MPa) f’cc (MPa) εco (%) εcc (%) εh (%) fl (MPa) k1 Pmax (kN)
C-1 28.58   0.157      505
C-2 28.85   0.188      510
C-3 28.52   0.200      504
Average 28.65   0.182      506
P-1 37.89   0.155      379
P-2 38.99   0.180      390
P-3 37.01   0.165      370
Average 37.96   0.167      380
C-OL-1   37.28   0.186 0.067 0.0872 98.9 948
C-OL-2   36.09   0.199 0.083 0.1080 68.8 918
Average   36.69   0.193 0.075 0.0976 83.8 933
C-S1-1   40.68   0.244 0.189 0.2461 48.8 1035
C-S1-2   39.96   0.237 0.184 0.2396 48.7 1074
Average   40.32   0.241 0.187 0.2428 48.7 1055
P-S1TB-1   42.86   0.246 0.200 0.2604 13.2 1053
P-S1TB-2   40.57   0.237 0.056 0.3086 8.45 1090
Average   41.72   0.242 0.128 0.2845 10.8 1072
  1. f’cc (or f’co): Pmax/gross area; εcc (or εco): strain at the peak; εh: hoop strain at the peak; fl: lateral confinement pressure determined using Eq. (2).