Description

Test Method for Metallic Fibered Concrete – Flexural Tensile Strength (LOP and Residual)
Standard: EN 14651:2005

This standard defines a method for determining the flexural tensile strength of metallic fibered concrete using moulded test specimens. The test measures the Limit of Proportionality (LOP) and a series of residual flexural tensile strength values.

Applicable to metallic fibers up to 60 mm in length, the method can also be used for combinations of metallic and non-metallic fibers.

The tensile behavior is evaluated through residual flexural tensile strength values derived from the load–crack mouth opening displacement curve or load–deflection curve, obtained by applying a center-point load on a simply supported notched prism.

Basic Results

• F_L: The maximum load in the range from 0 to 0,05mm of deflection.
• f_L: The residual flexural strength at the LOP
• F_R,1: The load at CMOD = 0.5 mm
• F_R,2: The load at CMOD = 1.5 mm
• F_R,3: The load at CMOD = 2.5 mm
• F_R,4: The load at CMOD = 3.5 mm
• f_R,1: Residual flexural tensile strength at F1
• f_R,2: Residual flexural tensile strength at F2
• f_R,2: Residual flexural tensile strength at F3
• f_R,4: Residual flexural tensile strength at F4