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Table 4 Strength calculation of all shear bond tests according to different failure modes

From: Experimental Research on Bond Behaviour of Fabric Reinforced Cementitious Matrix Composites for Retrofitting Masonry Walls

Failure mode Specimen Peak load (N) Half peak load (N) Section area Strength (MPa)
Brittle failure of the matrix A1-1 4570.01 2285.00 56.8 mm × 110 mm 0.37
A1-2 4786.65 2393.32 0.38
A1-3 4837.04 2418.52 0.39
Avg 4731.23 2365.61 0.38
Shear bond failure A2-1 10,278.66 5139.33 56.8 mm × 110 mm 0.82
A2-2 6785.30 3392.65 0.54
A2-3 8869.21 4434.61 0.71
Avg 8644.39 4322.20 0.69
A4-1 4123.15 2061.57 56.8 mm × 110 mm 0.33
A4-2 2998.88 1499.44 0.24
A4-3 1756.34 878.17 0.14
Avg 2959.46 1479.73 0.24
Tensile failure of XPS A3-1 713.28 356.64 56.8 mm × 20 mm 0.31
A3-2* 491.22 245.61 0.22
A3-3
B3-1 719.87 359.94 0.32
B3-2 825.49 412.75 0.36
B3-3 802.26 401.13 0.35
Avg 765.23 382.61 0.34
Tensile failure of fabric B1-1 6958.09 3479.05 4 × 2 mm2 434.88
B1-2 7635.88 3817.94 477.24
B1-3 7474.90 3737.45 467.18
Avg 7356.29 3678.15 459.77
B2-1 14,827.73 7413.86 8 × 2 mm2 463.37
B2-2 15,117.86 7558.93 472.43
B2-3 13,711.93 6855.96 428.50
Avg 14,552.51 7276.25 454.77
B4-1 7571.36 3785.68 4 × 2 mm2 473.21
B4-2 7650.38 3825.19 478.15
B4-3 7707.60 3853.80 481.72
Avg 7643.11 3821.56 477.69
Peel bond failure A5-1 231.40 115.70 56.8 mm × 110 mm 0.02
A5-2 1663.16 831.58 0.13
A5-3 307.08 153.54 0.02
Avg 733.88 366.94 0.06
B5-1 1128.62 564.31 56.8 mm × 220 mm 0.05
B5-2 2340.80 1170.40 0.09
B5-3 3054.00 1527.00 0.12
Avg 2174.48 1087.24 0.09
  1. *Denotes invalid data because the XPS plate was corroded by glue
  2. – Denotes lost data because the specimen was damaged during placement