The Effectiveness of Measuring Flexural Performance of Fiber-Reinforced Concrete using the ASTM C1399-02 Test Method

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Title: The Effectiveness of Measuring Flexural Performance of Fiber-Reinforced Concrete using the ASTM C1399-02 Test Method

Author(s): G.P. Gava and L.R. Prudêncio Jr.

Publication: Special Publication

Volume: 253

Issue:

Appears on pages(s): 105-122

Keywords: average residual strength; fiber-reinforced concrete; flexural tests; steel fiber; toughness

Date: 7/31/2008

Abstract:
This paper investigates if the ASTM C1399-02 procedure minimizes the post-peak instability, and if it is able to measure the fiber-reinforced beam response at low displacements. The load and mid-span displacement curve, the crackmouth opening displacement and mid-span displacement curve and the average residual strength obtained from ASTM C1399-02 test results were compared with those obtained from ASTM C1018-94b, both conducted in an servo-controlled test machine. The results from ASTM C1399-02 were similar to those obtained according to ASTM C1018-94b. Additionally, the neutral axis value and the crack-mouth opening displacement obtained from ASTM C1399-02 were similar to those determined by ASTM C1018-94b, showing that ASTM C1399-02 test procedure did not minimize the effect of post-peak instability.