Paper Title:
Research on Fracture-CMOD Toughness of Steel Fiber Reinforced Concrete
  Abstract

In order to study the fracture toughness of steel fiber reinforced concrete (SFRC) and the postcracking toughness evaluation method, the fracture toughness tests were done for the four types of steel fibers and three kinds of matrix strength. According to the experiment curves of the load and the crack mouth opening displacement (Load-CMOD), the fracture toughness of SFRC was studied; the formulas of the postcracking toughness coefficient and the Fracture-CMOD toughness index were established. The experiment results show that the Fracture-CMOD toughness index can reflect sensitively to the effect on concrete toughness of the type of the steel fiber, and then it is avoid that the estimation error of the initial cracking point led to the evaluation error of the toughness.Comparison with other fibers B fiber shows the best crack resistance and the toughening ability.

  Info
Periodical
Advanced Materials Research (Volumes 168-170)
Edited by
Lijuan Li
Pages
1784-1787
DOI
10.4028/www.scientific.net/AMR.168-170.1784
Citation
X. W. Wang, W. L. Tian, L. L. Fan, M. J. Zhou, X. Y. Zhao, "Research on Fracture-CMOD Toughness of Steel Fiber Reinforced Concrete", Advanced Materials Research, Vols. 168-170, pp. 1784-1787, 2011
Online since
December 2010
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Price
$32.00
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