Experimental study of the bonding behavior between coarse aggregate ultra-high performance concrete and steel rebar

Huang, Yuan; Yu, Zhihong

doi:10.1016/j.engstruct.2023.116253

Cited by 10 publications

(2 citation statements)

References 41 publications

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“…At present, reinforced concrete structure remains the most commonly employed structural form in building structures [32][33][34][35]. The fundamental mechanical properties of concrete and the bonding properties between the steel bars and concrete are crucial factors that determine the suitability of concrete material for widespread use in reinforced concrete structures [36]. However, current research only focuses on the impact of SSFs and RSFs on the fundamental mechanical properties of RRAC.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Effects of Straight and Ring-Type Steel Fibres on the Bond Behaviour of Steel Bars in Rubber-Recycled Aggregate Concrete

Ma,

Li,

Zheng

et al. 2024

Buildings

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The application range of rubber-recycled aggregate concrete (RRAC), a new type of green building material, is currently limited due to performance defects, including low hardness, high water absorption, and poor adhesion. To expand its application in reinforced concrete structures, it is crucial to enhance the bonding performance between RRAC and steel bars. In this study, the effects of adding straight steel fibres (SSFs) and ring-type steel fibres (RSFs) to RRAC were investigated, in order to enhance the bonding performance. To investigate the impact of steel fibres (SFs) on the bonding properties of RRAC and steel bars, a total of 51 specimens were subjected to pull-out tests to systematically examine the impact of SSF and RSF dosages on the bonding performance. The results demonstrated that incorporating the optimal amount of SSFs and RSFs can significantly improve the bond strength and bond stiffness. Moreover, the combined use of SSFs and RSFs yielded even better enhancement effects. The RRAC exhibited remarkable performance, when the total content of SFs was 1.2% and the proportion of RSFs 75%. In this case, the bond strength and bond stiffness were enhanced by 3.7% and 53.88%, respectively. Finally, a bond–slip constitutive model for RRAC and steel bar was established. The combined use of SSFs and RSFs minimizes the limitations of poor mechanical properties in traditional RRAC and holds significant value for the widespread adoption and application of RRAC.

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Section: Introductionmentioning

confidence: 99%

Experimental Study on the Effects of Straight and Ring-Type Steel Fibres on the Bond Behaviour of Steel Bars in Rubber-Recycled Aggregate Concrete

Ma,

Li,

Zheng

et al. 2024

Buildings

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“…Gaifei found that a water-binder ratio of 0.18 and a mass ratio of silica fume, fly ash, and mineral powder at 1:2:1 was the most effective way to improve the compressive strength of UHPC-CA. A study by Yuan Huang [9] examined the bonding performance between UHPC and steel bars through the pull-out test of UHPC-CA. The study analyzed the impact of various factors such as aggregate strength, size, content, fiber content, cover thickness, and bond length.…”

Section: Introductionmentioning

confidence: 99%

A Preliminary Study Was Conducted on the Compressive Strength and Flow Performance of Environmentally Friendly UHPC-SCA

Wang,

Zhang,

Shi

et al. 2023

Buildings

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This research paper explores using marine shells as coarse aggregates in producing seawater sea sand UHPC-CA. The study examined factors such as coarse aggregates (granite, oyster shell, and cone shell), fine aggregates (sea sand and river sand), fiber types, and content. The research findings indicate that different coarse aggregates and fibers influence the flow performance of UHPC-SCA. The study identified the cone shell as the best coarse shell aggregate and 1.5% steel fiber as the optimal fiber and inclusion amount. The compressive strength of this combination reached 106 MPa, which is comparable to the granite stone UHPC-CA of the same particle size.

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Innovative Design and Structural Behavior of UHPC Composite Cap Foundation Under Ultimate Limit State

Wu,

Liu,

Lin

et al. 2024

Lecture Notes in Civil Engineering

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Experimental study of the bonding behavior between coarse aggregate ultra-high performance concrete and steel rebar

Cited by 10 publications

References 41 publications

Experimental Study on the Effects of Straight and Ring-Type Steel Fibres on the Bond Behaviour of Steel Bars in Rubber-Recycled Aggregate Concrete

Experimental Study on the Effects of Straight and Ring-Type Steel Fibres on the Bond Behaviour of Steel Bars in Rubber-Recycled Aggregate Concrete

A Preliminary Study Was Conducted on the Compressive Strength and Flow Performance of Environmentally Friendly UHPC-SCA

Innovative Design and Structural Behavior of UHPC Composite Cap Foundation Under Ultimate Limit State

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