Enhancing impact resistance of concrete slabs

• Autorzy: Anbu Hemanth Kumar , P Udhayanithi , Kothandapani Karthikeyan , M Senthilpandian

Identyfikatory

DOI

10.12913/22998624/204679

• Języki publikacji: EN

Abstrakty

EN

The impact resistance of concrete slabs was investigated through a comparative experimental analysis of Conventional Concrete (CC) and Steel Fiber Reinforced Concrete (SFRC), with a focus on dynamic performance using the Ratio of Crack Resistance (Rcr) as a core evaluative metric. The research aims to address the limitations of CC under high-strain-rate conditions and explore the effectiveness of steel fiber reinforcement in mitigating impact-induced damage. CC slabs exhibited brittle failure with a low Rcr of 0.09, characterized by rapid crack propagation and negligible energy dissipation. In contrast, SFRC slabs demonstrated a substantial improvement in impact resistance, achieving Rcr values between 0.75 and 1.35. This performance gain is directly linked to the inclusion of 1% steel fibers, which enhanced tensile capacity, bridged developing cracks, and delayed crack propagation, ultimately shifting the failure mode from brittle to ductile. Repeated impact testing further revealed that SFRC slabs maintained structural integrity even after perforation onset. The study establishes the significance of fiber content and distribution in optimizing impact performance and reducing the risk of punching shear failure. These findings position SFRC as a structurally resilient solution for applications subjected to dynamic loading, such as protective slabs, industrial floors, and critical transportation infrastructure.

Słowa kluczowe

EN

impact loading; slab; steel fibre reinforced concrete; reinforced concrete; crack resistance

• Wydawca: Lublin University of Technology ; Polish Society of Ecological Engineering (PTIE), Branch of PTIE in Lublin
• Czasopismo: Advances in Science and Technology. Research Journal
• Rocznik: 2025
• Tom: Vol. 19, no. 8
• Strony: 30--43
• Opis fizyczny: Bibliogr., 71 poz., fig., tab.

Twórcy

autor

Anbu Hemanth Kumar

• School of Civil Engineering, Vellore Institute of Technology, Chennai, India

• https://orcid.org/0009-0004-0975-8106

autor

P Udhayanithi

• School of Civil Engineering, Vellore Institute of Technology, Chennai, India

• https://orcid.org/0009-0003-7317-1898

autor

Kothandapani Karthikeyan

• School of Civil Engineering, Vellore Institute of Technology, Chennai, India

• https://orcid.org/0000-0002-4144-5802

autor

M Senthilpandian

• School of Civil Engineering, Vellore Institute of Technology, Chennai, India

• https://orcid.org/0000-0003-0261-8616

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