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Date: 5/19/2015 Time: 11:42:30 AMStrengthening of Reinforced Concrete Structures withSika CarboDur Composite Strengthening SystemsDisclaimer: The user is responsible for the results obtained from this programme.

CONFINEMENT

Type of Cross Section Circular

Cross Section Geometry Diametre D = 0.5 m

Concrete Strength class C 20/25 Characteristic strength fck = 20 N/mm Mean strength fcm = 28.2 N/mm

Composite Materials Elastic modulus Ef = 165 kN/mm Ultimate tensile strain fu = 0.017 Effective ultimate strain fu,e = 0.9 x fu = 0.0153Type of Application Continuous jacket

Requirements Increase of mean strength Mean strength after strengthening fcc = 30 N/mm Increase of ultimate axial strain Ultimate axial strain after strengthening cu = 0.01Results Required FRP thickness tf = 0.03 mm Mean strength after strengthening fcc = 30.00 N/mm Ultimate axial strain after strengthening cu = 0.01150