Research Article

Use of UHPC in Bridge Structures: Material Modeling and Design

Table 3

Material identity card for Ductal (sf). Mean values obtained from direct notched tensile plate tests.

SymbolMean value ksi (MPa)

Compressive strength 28 (193)
Initial stiffness 7,820 (53,917)
Postcracking stiffness 233 (1,606)
Cracking strength 1.1 (7.6)
Postcracking strength 1.0 (6.9)
Ductile strength 1.67 (11.5)
Fiber length 0.5 in (1.27 cm)