Table 8: Test result of NSM screw-thread steels and CFRP bars.

Number of specimenFcr (kN)fcr (mm)Fu (kN)fu (mm)Fu/FcrFailure mode

B-124.183.89Brittle mode
GB-130.715.0519.1812.160.62Brittle mode
GB-228.034.6319.5916.720.70Brittle mode
GB-328.154.3015.9617.170.57Brittle mode
GB-434.185.0121.0924.430.62Brittle mode
GB-534.765.3938.76122.51.12Ductile mode
GB-637.655.3256.44174.501.50Ductile mode
CB-124.595.5012.7514.20.52Brittle mode
CB-230.095.2032.8530.651.26Brittle mode
CB-328.355.6841.1853.501.45Ductile mode

Note. Fcr, crack load; Fu, failure load; fu, midspan deflection; fcr, midspan cracking deflection.