ASTM C1399/C1399M − 10 Standard Test Method for Obtaining Average Residual-Strength of Fiber-Reinforced Concrete

ASTM C1399/C1399M − 10 Standard Test Method for Obtaining Average Residual-Strength of Fiber-Reinforced Concrete

Scope
1.1 This test method covers the determination of residual strength of a fiber–reinforced concrete test beam.

The average residual strength is computed using specified beam deflections that are obtained from a beam that has been cracked in a standard manner.

The test provides data needed to obtain that portion of the load–deflection curve beyond which a significant amount of cracking damage has occurred, and it provides a measure of post–cracking strength, as such strength is affected by the use of fiber–reinforcement.

1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard.

The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other.

Combining values from the two systems may result in non-conformance with the standard.

ASTM C1399/C1399M − 10 Standard Test Method for Obtaining Average Residual-Strength of Fiber-Reinforced Concrete

Significance and Use

5.1 This test method provides a quantitative measure useful in the evaluation of the performance of fiber–reinforced concrete.

It allows for comparative analysis among beams containing different fiber types, including materials, dimension and shape, and different fiber contents.