Experimental and numerical investigation of scattering gravels on the surface bond strength of self-compacting concrete

Zhang, Jinrui; Ding, Xiaoping; Zhao, Qingxin

doi:10.1016/j.conbuildmat.2017.03.219

Cited by 26 publications

(6 citation statements)

References 30 publications

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“…The splitting test is shown in Figures 7E,F. Figure 1F is a common splitting test that allows bond strength testing of circular or cubic bonded specimens (ZHANG et al, 2017), and Figure 7E uses a wedge-shaped splitting test for more targeted testing of bond surface strength (DELATTE, 2009).…”

Section: Bonding Performance Test Methodsmentioning

confidence: 99%

Interface bonding properties of new and old concrete: A review

Liu,

Zou,

Zhang

et al. 2024

Front. Mater.

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The bonding performance between new and old concrete affects the reliability and service life of the repair structure. However, the bonding interface is complex and has many influencing factors, so selecting appropriate repair materials and evaluation methods for repair structures under different service environments is important. This paper presents a comprehensive overview of the factors that influence bonding properties. These include the choice of repair materials, the condition of the existing concrete, the type of interfacial agents used, the service environment, and the testing methods employed. The paper concludes by examining the challenges and opportunities in developing interface bonding properties to provide insights and research directions for future theoretical analysis and experimental research.

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Section: Bonding Performance Test Methodsmentioning

confidence: 99%

Interface bonding properties of new and old concrete: A review

Liu,

Zou,

Zhang

et al. 2024

Front. Mater.

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“…To determine the tensile strength of prismatic specimen STT is used, and the test setup has been shown in Fig. 3 Some authors (25,(27)(28)(29)found the split bond strength with different sizes of gravel, surface patterns and different overlay materials. With the use of the gravel patterns, the bond strength was increased by 60.3% as compared to the chipped surface (30).…”

Section: Splitting Prism Testmentioning

confidence: 99%

Effect of various interface bond tests and their failure behavior on substrate and overlay concrete -A Review

Pulkit¹,

Saini²,

Chalak³

2023

Res. Eng. Struct. Mater.

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Concrete is a widely used building material in the construction sector. Still, the lifespan of concrete is limited because many factors can influence the performance of concrete structures, which can be classified based on physical, chemical, and mechanical changes that occur during their service life. In addition, the structure's lifespan is being reduced due to adverse environmental conditions and loads. These require maintenance, restoration, or reconstruction. Therefore, considerable concrete remediation is necessary, and the best option is to repair it. However, the cost associated with restoring the deteriorating concrete structures is higher. The repaired concrete strength mainly depends on the interface layer, situated between the substrate (old) and overlay (new) concrete. The interface layer strength primarily depends on interface adhesion, friction, aggregate interlock, bonding agent, compaction, cleanliness, moisture content, concrete age, roughness, and time-dependent variables. Multiple tests are available to analyse the bonding behavior between substrate-overlay concrete. However, no particular method is available to access the bond strength. This paper describes various methods and techniques used by researchers to evaluate bond strength. The reviewed summary has shown that concrete repair is the best solution, and higher-strength concrete uses show better shear results; also, conventional concrete is more economical than higher-strength concrete. Among all the available tests the bi-surface shear test and slant shear test are the more suitable method to determine the bond strength.

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“…Benmokrane et al [5] investigated the bond strength and load distribution of glass fibre reinforced polymer (GFRP) composites in concrete. The surface adhesive qualities of self-compacting concrete with varying scattering gravel diameters (5-10 mm, 10-20 mm, and 5-20 mm) were studied by Jinrui Zhang et al [6]. A. Mohammed et al [7] adopted near-surface mounted fibre reinforced polymer (NSMRF) techniques for reinforcing reinforced concrete elements, which has proven to be a very successful technology, "The performance of NSM carbon FRP strengthening approach employing single-lap shear tests with new high-strength self-compacting cementitious adhesive (HSSC-CA) under high temperatures".…”

Section: Introductionmentioning

confidence: 99%

Regression Analysis for the Bond Strength of Steel Fibre Self-compacting Concrete Based on the Experimental Studies

Kumar¹,

Kumar²,

Swami³

2023

cea

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This article describes experimental research of the interfacial adhesion of triple blended steel fibred self-compacting concrete (TBSFSCC) and it varies depending on the percentage of steel fiber. In self-compacting concrete, mineral admixtures such as condensed silica fume and fly ash are utilized as supplementary cementitious materials (SCMs). Condensed silica fume can replace 10 percent of the cement and fly ash can replace 20 percent of the cement to fulfill ACI's SCC guidelines. The embedment length of a steel bar with a diameter of 12mm was chosen to be 100mm in all the standard specimens. Fe-415 steel rod is used in this research. The pull-out test in the universal testing machine is used to evaluate the bond strength of this triple blended Self-Compacting Concrete (TBSCC). Ordinary steel fibers are then added to the concrete volume at various percentages, such as 0.2, 0.4, 0.6, and 0.8. The bond strength, slip, and the method of failure of each rebar were all noted in the test results. The comparison of these results clearly shows that the percentage of steel fiber contributes to the TBSCC bond strength, and conclusions are generated.

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Experimental and numerical investigation of scattering gravels on the surface bond strength of self-compacting concrete

Cited by 26 publications

References 30 publications

Interface bonding properties of new and old concrete: A review

Interface bonding properties of new and old concrete: A review

Effect of various interface bond tests and their failure behavior on substrate and overlay concrete -A Review

Regression Analysis for the Bond Strength of Steel Fibre Self-compacting Concrete Based on the Experimental Studies

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