Flexural Strength Test on Concrete Beam Samples with Polypropylene Fiber (PPF)

Abstract

This review delves into how Flexural Strength affects the behavior of slabs using the Polypropylene Fiber Flexural Strength is crucial, in determining how slabs respond structurally affecting aspects such as deformation and failure mechanisms. Study how slabs behave under varying force conditions. Recent studies are synthesized in this review exploring how it enables examinations of force effects. It discusses the factors that influence Flexural Strength distribution. Acknowledges the challenges associated with this review underscores the importance of considering force in slab design. Highlights FEMs role, in improving comprehension and safety measures.

Introduction

The study investigates the effect of adding Polypropylene Fiber (PPF) to concrete mixes on the flexural strength of concrete beams. PPF is known to improve crack resistance and durability. Three concrete beam samples with PPF ratios of 0%, 0.5%, and 1% by cement weight were tested for flexural strength following ASTM C78 standards.

In civil engineering, understanding slab behavior under shear forces is critical for stability and safety. Traditional analytical methods often fall short in modeling this complex behavior, making Finite Element Method (FEM) a valuable tool for simulating shear effects, crack propagation, and deformation in slabs.

The literature review covers key studies on nonlinear slab behavior, cracking analysis, shear strengthening methods, and punching shear capacity, emphasizing advances in FEM modeling and experimental validation.

The experiment used standard concrete mix proportions and specimens sized 100×100×500 mm, cured for 28 days. PPF doses were 0%, 0.5%, and 1% relative to cement weight, and the flexural test was conducted using a third-point loading hydraulic machine at a controlled loading rate.

Applications of PPF include: crack control in various concrete types, pavements, water-retaining structures, and marine environments. Its advantages are cost-effectiveness, ease of use, rust resistance, and no significant effect on air entrainment or chloride content.

Conclusion

1) The use of PPF fibers significantly improves the flexural resistance of concrete. 2) The optimum ratio is between 0.5% and 1.0%, depending on the application. 3) It is recommended for use in elements subject to flexure, such as lintels and slabs.

References

[1] Bazant, Z. P., & Oh, B. H. (1983). Crack band theory for fracture of concrete. Materials and Structures,16(93), 155-177. [2] Bathe, K. J. (1996). Finite Element Procedures. Prentice Hall. [3] Gunes, O., &Tasdemir, M. A. (2010). Nonlinear finite element analysis of RC beams under torsion. Journal of Reinforced Plastics and Composites, 29(5), 705-715. [4] Park, R., &Paulay, T. (1975). Reinforced Concrete Structures. John Wiley & Sons. [5] Zienkiewicz, O. C., & Taylor, R. L. (2005). The Finite Element Method: Its Basis and Fundamentals (sixthEd.). Butterworth-Heinemann. [6] Jan C. Jofriet and Gregory M. McNeice ,1971 )Finite Element Analysis of Reinforced Concrete Slabs,( [7] P. M. Lewi?ski and W. Wojewódzki, 1991 (Integrated Finite Element Model for Reinforced Concrete Slabs,) [8] Ehab F. El-Salakawy, Maria Anna Polak, and Khaled A. Soudki, 2003 (New Shear Strengthening Technique for Concrete Slab-Column Connections,) [9] K. M. Jahangir Alam ,Khan Mahmud Amanat, and Salek M. Seraj, 2009 (An Experimental Study on Punching Shear Behavior of Concrete Slabs,) [10] Philipp Schmidt, Dominik Kueres, Josef Hegger, 2010 (Punching shear behavior of reinforced concrete flat slabs with a varying amount of shear reinforcement,)

Copyright

Copyright © 2025 Zaid Ahmed Shakir, Prof. Dr. Hussam Ali Mohammed. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.