Wedge splitting tests to study fatigue behavior of high performance concrete

Title: Wedge splitting tests to study fatigue behavior of high performance concrete
Author(s): A. Meda, G.A. Plizzari
Paper category : conference
Book title: International Conference on Advances in Concrete and Structures
Editor(s): Ying-shu Yuan, Surendra P. Shah and Heng-lin Lü
Print-ISBN: 2-912143-41-1
e-ISBN: 2351580176
Publisher: RILEM Publications SARL
Publication year: 2003
Pages: 808 - 817
Total Pages: 10
Nb references: 13
Language: English

In the present paper, the role of steel fibers on fatigue behavior of both Normal (NSC) and High Strength Concrete (HSC) is investigated. Experimental results from Wedge Splitting tests on Fiber Reinforced Concrete specimens help to better understand fracture behavior under cyclic loads. Geometrically similar specimens with different sizes are adopted. Fatigue tests are performed on pre-cracked specimens to reproduce the situation in real concrete structures where cracks are present since the beginning of their life. In order to determine fracture properties of the adopted materials, static tests on specimens with monotonically increasing displacement are also performed. Experimental results show a remarkable size effect in fatigue behavior and also show that steel fibers significantly increase the fatigue resistance of concrete under tension. Furthermore, HSC shows a better fatigue performance than NSC because of the better fiber efficiency in increasing the material toughness.

Online publication: 2003-08-10
Publication type : full_text
Public price (Euros): 0.00

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