Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 30135
Experimental and Numerical Investigations on Flexural Behavior of Macro-Synthetic FRC

Authors: Ashkan Shafee, Ahamd Fahimifar, Sajjad V. Maghvan

Abstract:

Promotion of the Fiber Reinforced Concrete (FRC) as a construction material for civil engineering projects has invoked numerous researchers to investigate their mechanical behavior. Even though there is satisfactory information about the effects of fiber type and length, concrete mixture, casting type and other variables on the strength and deformability parameters of FRC, the numerical modeling of such materials still needs research attention. The focus of this study is to investigate the feasibility of Concrete Damaged Plasticity (CDP) model in prediction of Macro-synthetic FRC structures behavior. CDP model requires the tensile behavior of concrete to be well characterized. For this purpose, a series of uniaxial direct tension and four point bending tests were conducted on the notched specimens to define bilinear tension softening (post-peak tension stress-strain) behavior. With these parameters obtained, the flexural behavior of macro-synthetic FRC beams were modeled and the results showed a good agreement with the experimental measurements.

Keywords: Concrete damaged plasticity, fiber reinforced concrete, finite element modeling, macro-synthetic fibers, direct tensile test.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1338987

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1267

References:


[1] Ronald F. Zollo. Fiber-reinforced Concrete: An Overview after 30 Years of Development. Cement and Concrete Composites 19 (1997) 107-122.
[2] Ratcliffe R. Steel versus Synthetic Fiber Reinforcement in Shotcrete. Shotcrete for underground support. ASCE 2006
[3] Hsie M, Tu C, Song PS. Mechanical properties of polypropylene hybrid fiberreinforced concrete. Mat Sci Eng A Struct. 2008;494(1–2):153–7
[4] Cengiz O, Turanli L. Comparative evaluation of steel mesh, steel fibre and high-performance polypropylene fibre reinforced shotcrete in panel test. Cement Concrete Res 2004; 34(8):1357–64.
[5] Sorelli L. G, Meda A, Plizzari G. A. Bending and Uniaxial Tensile Tests on Concrete Reinforced with Hybrid Steel Fibers. J. Mater. Civ. Eng. 2005.17:519-527.
[6] ASTM Standards C1609/C1609M-12. 2012. Standard Test Method for Flexural Performance of Fiber-Reinforced Concrete (Using Beam with Third Point Loading). ASTM International,
[7] ASTM Standards C469/C469-02. Standard Test Method for Static Modulus of Elasticity and Poisson’s Ratio of Concrete in Compression. ASTM International