Issue 69

S. D. Raiyani et alii, Frattura ed Integrità Strutturale, 69 (2024) 71-88; DOI: 10.3221/IGF-ESIS.69.06

s b = height of SSWM strip = (Total height of cylinder – spacing between SSWM strip) /both ends of the cylinder = (300 – 30)/2 = 135 mm s p = c/c spacing of SSWM strip = s b + ' s p = 165 mm

4 0.27 135 150 165   

  

= 0.00589

700.16

n w    





0.855 1 0.00589

0.05107

2 34.52 

and SSWM confined compressive strength of the cylinder can be calculated as   ' ' 1 3.6 cc c h n f f k w      34.52   1 3.6 1 0.05107     = 40.87 MPa.

34.52 

40.87 34.52



100

= 18.38%

% increase in strength with respect to unstrengthened concrete cylinder =

88