Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 30753
Experimental Characterization of the Shear Behavior of Fiber Reinforced Concrete Beam Elements in Chips

Authors: Djamal Atlaoui, Youcef Bouafia

Abstract:

This work deals with the experimental study of the mechanical behavior, by shear tests (fracture shear), elements of concrete beams reinforced with fibers in chips. These fibers come from the machining waste of the steel parts. The shear tests are carried out on prismatic specimens of dimensions 10 x 20 x 120 cm3. The fibers are characterized by mechanical resistance and tearing. The optimal composition of the concrete was determined by the workability test. Two fiber contents are selected for this study (W = 0.6% and W = 0.8%) and a BT control concrete (W = 0%) of the same composition as the matrix is developed to serve as a reference with a sand-to-gravel ratio (S/G) of concrete matrix equal to 1. The comparison of the different results obtained shows that the chips fibers confer a significant ductility to the material after cracking of the concrete. Also, the fibers used limit diagonal cracks in shear and improve strength and rigidity.

Keywords: Characterization, Ductility, shear, cracking mode, chips fibers, undulation

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 34

References:


[1] K. Noghabai. “Beams of fibrous concrete in shear and bending experimental and Model”. J Struct ENG-ASCE. 2000; 126(2): 243–510.
[2] Y. Kwak, MO. Eberhard, J. Kim. “Shear strength of steel fiber-reinforced concrete beams without stirrups”. ACI Struct J. 2002; 99(4): 530–805.
[3] E. Slater, M. Moni, M. Shahia Alam. “Predicting the shear strength of steel fiber reinforced concrete beams”. Construction and Building Materials.2012; 8: 423-436.
[4] HH. Dinh, GJ. Parra-Montesios, JK. Wight. “Shear behaviour of steel fiber reinforced concrete beams without stirrup reinforcement”. ACI Struct J. 2010; 107(5): 597–606.
[5] A. Meda, F. Minelli, GP.Plizzari, P. Riva. “Shear behaviour of steel fibers reinforced concrete beams”. Mater Struct. 2005; 38(4): 343-512.
[6] S. Cho, Y. Kim. “Effects of steel fibers on short beams loaded in shear”. ACI Struct J. 2003; 100(6): 765-784.
[7] CE. Chalioris, EF. Sfiri. “Shear Performance of Steel Fibrous Concrete Beams”. Procedia Engineering. 2011; 14: 2064–2068.
[8] JR. Sydney Furlan, João Bento de Hanai. "Shear Behaviour of Fiber Reinforced Concrete Beams". Cement and Concrete Composites. 1997; 19: 359-366.
[9] P. Rossi, Le développement industriel des bétons de fibres métalliques – Conclusions et recommandations, Presses de l’École Nationale des Ponts et Cha²ussées, 2002.
[10] P. Casanova, P. Rossi, I. Schaller, Les fibres d’acier peuvent-elles remplacer les armatures transversales dans les poutres en béton armé, Bulletin de liaison, LCPC, n° 195, janvier 1995.