Abstract
The complete splitting process of steel fiber reinforced concrete (SFRC) at intermediate strain rate was studied by experiment. The basic information of a self-developed SFRC dynamic test system matching with Instron 1342 materials testing machine was given, and the experiment principle and the loading mode of cubic split specimen were introduced. During the experiment, 30 cubes of 150 mm×150 mm×150 mm and 36 cubes of 100 mm×100 mm×100 mm, designed and prepared according to C20 class SFRC with different volume fractions of steel fiber (0, 1%, 2%, 3%, 4%) were tested and analyzed. At the same time, the size effect of SFRC at intermediate strain rate was investigated. The experimental study indicates that SFRC size effect is not influenced by the loading speed or strain rate. When the steel fiber content increases from 0 to 4%, the splitting strength of SFRC increases from 100% to 261%, i.e. increasing by 161% compared with that of the common concrete. The loading rate increases from 1.33 kN/s to 80.00 kN/s, and the splitting tensile strength increases by 43.55%.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
ALBERTINI C, CADONI E, LABIBES K. Study of the mechanical properties of plain concrete under dynamic loading [J]. Experimental Mechanics, 1999, 39(2): 137–141.
BISCHOFF P H. Impact behavior of plain concrete at high strain rates [J]. Materials and Structure, 1991, 24(1): 425–438.
LUO Zhang. Study on the constitutive relationship of steel fiber reinforced concrete under intermediate strain rate [D]. Changsha: School of Resources and Safety Engineering, Central South University, 2004. (in Chinese)
RIEDER K A, MINDESS S. New test method to evaluate the impact behaviour of biaxially confined concrete [J]. Materials and Structures, 1998, 31(12): 669–675.
HARAJLI M H. Effect of confinement using steel FRC, or FRP on the bond stress-slip response of steel bars under cyclic loading [J]. Materials and Structures, 2006, 39(6): 621–634.
GAO Dan-ying, ZHAO Jun, TANG Ji-yu. Experimental study on the dimensional effect of steel fiber reinforced high-strength concrete (SFRHSC) under splitting tension [J]. Journal of Building Materials, 2004, 7(3): 295–298. (in Chinese)
ZHANG S, HAUSSLER-COMBE U, EIBL J. New approach to strain rate sensitivity of concrete in compression [J]. Engineering Mechanics, 1999, 125(12): 1403–1410.
LI Xi-bing, LUO Zhang, ZHAO Fu-jun. Experimental study on the tensile behavior of steel fiber reinforced concrete under intermediate strain rate [J]. Journal of Experimental Mechanics, 2004, 19(3): 301–309. (in Chinese)
EIBL J B. Schmidt-Hurtienne. Strain-rate-sensitive constitutive law for concrete [J]. Engineering Mechanics, 1999, 125(12): 1411–1420.
LIN T Y, PARAMASIRAM P, LEE L. Analytical model for tensile behavior of steel fiber reinforced concrete [J]. ACI Materials Journal, 1987, 87(4): 286–298.
LI Xi-bing, ZUO Yu-jun, WANG Wei-hua. Constitutive model of rock under static-dynamic coupling loading and experimental investigation [J]. Trans Nonferrous Met Soc China, 2006, 16(3): 714–722.
XING Ji-bo, YU Liang-qun, ZHANG Rui-feng. Numerical modeling of progressive failure in particulate composites like sandstone [J]. Trans Nonferrous Met Soc China, 1999, 9(1): 165–171.
GEORGE G N, ANTOINE E N. Strain rate effects on tensile properties of fiber reinforced concrete [C]// Materials Research Society Symposia Proceedings. Pittsburgh: Materials Research Soc, 1986, 64: 97–118.
ALTUN F, HAKTANIR T, ARI K. Experimental investigation of steel fiber reinforced concrete box beams under bending [J]. Materials and Structures, 2006, 39(4): 491–499.
FAWAZ Z, ELLGIN F. Fatigue failure model for fiber-reinforced materials under general loading conditions [J]. Composite Materials, 1994, 28(15): 1342–1451.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Luo, Z., Li, Xb. & Zhao, Fj. Complete splitting process of steel fiber reinforced concrete at intermediate strain rate. J. Cent. South Univ. Technol. 15, 569–573 (2008). https://doi.org/10.1007/s11771-008-0107-7
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11771-008-0107-7