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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Fatigue Property of Concrete With and Without Mineral Admixtures
Author(s): T. R. Naik and S. S. Singh
Publication: Special Publication
Appears on pages(s): 269-288
Keywords: compressive strength; concretes; cyclic loads; fly ash; fatigue (materials); flexural strength; mineral admixtures; silica fume; Materials Research
Abstract:This research was conducted to present state-of-the-art information on fatigue behavior of plain concrete with and without mineral admixtures and to evaluate fatigue characteristics of Class C fly ash concrete under flexural stress. A number of studies have shown that concrete fatigue strength is significantly influenced by a large number of variables, including stress range, loading rate, load history, stress reversal, rest period, stress gradient, material properties, etc. Effects of these parameters on fatigue characteristics of concrete are addressed. In general, endurance of fatigue flexural limit of plain concrete was found to vary between approximately 50 and 70 percent of its static flexural strength. But it can be lower than 50 percent when concrete is tested in water. Experimental investigations conducted in this research revealed that a fly ash concrete mixture with 15 percent cement replacement showed superior performance relative to high-volume fly ash mixtures with 50 percent cement replacement with respect to compressive strength and flexural fatigue strength. However, fly ash concrete mixtures showed essentially the same results when the flexural fatigue strength was expressed as a percentage of the flexural static strength.
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