Corrosion Protection Systems Comparison

STAINLESS STEEL EPOXY REBAR GFRP TemBar
Weight Same as black rebar Same as black rebar Approx. 25% of the weight as black rebar for any given diameter
Yield & Tensile Strengths (MPa) Yield = 520 MPa
Tensile Strength = 860 MPa
Yield = 400 MPa
Tensile Strength = 500 MPa
No yield
Tensile Strength ≥ 1000 MPa
Tension Modulus of Elasticity (MPa) 180,000 200,000 Grade III > 60,000
Damage resistant Very high Good but coating can be damaged Very good
Shearing Not an issue Ends have to patched Use of circular saw
Bending Allowed Allowed but may weaken the coating integrity at the bend Field bends not allowed, must be done at manufacturers plant
Chloride Threshold High resistant to chlorides depending on the grade Less resistant dependent on the coating integrity and any “holidays” Immune to chloride attack
Outside storage Not a problem other than security because of expense Requires protection from UV light Requires protection from UV light
Design Generally the same characteristics as black rebar Generally the same characteristics as black rebar Different characteristics for GFRP design may vary
Cost 5-8 times the cost of black rebar 1.5 times the cost of black rebar Per lineal metre approx. 2 times the cost of epoxy.