期刊
CONSTRUCTION AND BUILDING MATERIALS
卷 23, 期 12, 页码 3468-3474出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2009.08.017
关键词
Steel fiber reinforced concrete (SFRC); Compressive strength; Splitting tensile strength; Flexural strength; Correlation
资金
- China National Basic research Program [2009CB623100]
In this paper, applicability of previously published empirical relations among compressive strength, splitting tensile strength and flexural strength of normal concrete, polypropylene fiber reinforced concrete (PFRC) and glass fiber reinforced concrete (GFRC) to steel fiber reinforced concrete (SFRC) was evaluated: moreover, correlations among these mechanical properties of SFRC were analyzed. For the investigation, a large number of experimental data were collected from published literature, where water/binder ratio (w/b), steel fiber aspect ratio and volume fraction were reported in the general range of 0.25-0.5, 55-80 and 0.5-2.0%, respectively, and specimens were cylinders with size of 0 150 x 300 mm and prisms with size of 150 x 150 x 500 mm. Results of evaluation on these published empirical relations indicate the inapplicability to SFRC, also confirm the necessity of determination on correlations among mechanical properties of SFRC. Through the regression analysis on the experimental data collected, power relations with coefficients of determination of 0.94 and 0.90 are obtained for SFRC between compressive strength and splitting tensile strength, and between splitting tensile strength and flexural strength, respectively. (C) 2009 Elsevier Ltd. All rights reserved.
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