Scholarlink

<p>The bond behaviour between concrete and reinforcement is crucial for ensuring the composite action and structural performance of reinforced concrete elements. This study investigates the effect of crimped steel fibers and various types of reinforcement on the bond characteristics of M20-grade concrete. A total of 54 pullout specimens were prepared using three types of reinforcements: conventional steel bars, glass fiber-reinforced polymer (GFRP) bars, and glass fiber roving-wrapped steel (GRPWS) bars. These reinforcements were embedded in concrete mixes both with and without steel fiber reinforcement. Preliminary strength tests determined that the optimal steel fiber content was 0.10% by volume. Pullout tests were conducted under different curing environments, including normal, acidic and base conditions, to assess the interfacial bond response and durability performance. The results showed that the inclusion of steel fibers significantly enhanced bond strength and reduced slip at the interface for all types of reinforcement. Among the tested reinforcements, GFRP bars exhibited the highest bond strength and the best resistance to degradation in aggressive environments, followed by conventional steel and GRPWS bars. The combination of 0.10% crimped steel fibers and GFRP reinforcement provided the most effective bond performance, highlighting their potential for durable and resilient structural applications.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Bond Performance of Steel, GFRP and Glass Fiber Roving Wrapped Steel Reinforcement in Normal and Steel Fiber Reinforced Concrete

  • 期刊论文

  • 发表日期：

    2026年4月18日

查看全文
  • Abhishek Prakash,
  • S. Anitha Priyadharshani,
  • Sarella Venkateswara Rao

摘要

The bond behaviour between concrete and reinforcement is crucial for ensuring the composite action and structural performance of reinforced concrete elements. This study investigates the effect of crimped steel fibers and various types of reinforcement on the bond characteristics of M20-grade concrete. A total of 54 pullout specimens were prepared using three types of reinforcements: conventional steel bars, glass fiber-reinforced polymer (GFRP) bars, and glass fiber roving-wrapped steel (GRPWS) bars. These reinforcements were embedded in concrete mixes both with and without steel fiber reinforcement. Preliminary strength tests determined that the optimal steel fiber content was 0.10% by volume. Pullout tests were conducted under different curing environments, including normal, acidic and base conditions, to assess the interfacial bond response and durability performance. The results showed that the inclusion of steel fibers significantly enhanced bond strength and reduced slip at the interface for all types of reinforcement. Among the tested reinforcements, GFRP bars exhibited the highest bond strength and the best resistance to degradation in aggressive environments, followed by conventional steel and GRPWS bars. The combination of 0.10% crimped steel fibers and GFRP reinforcement provided the most effective bond performance, highlighting their potential for durable and resilient structural applications.