Experimental investigation of behaviour and failure modes of chemical anchorages bonded to concrete

Çalişkan, Özlem; Aras, Murat

doi:10.1016/j.conbuildmat.2017.08.179

Cited by 14 publications

(6 citation statements)

References 11 publications

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“…Przeprowadzono badania mające na celu określenie wpływu środowiska, różnych odległości brzegowych zainstalowanych kotew oraz zachowania przy osiowym rozciąganiu, wpływu odległości między kotwami (14)(15)(16). Są również badania, w których jako zmienne wykorzystano epoksydy stosowane w montażach kotew (17,18).…”

Section: Introductionunclassified

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Effect of synthetic zeolite on tobermorite synthesis

et al. 2023

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Chemical anchors are widely used in additional installations of construction irons, repair and reinforcement work. Due to the increasing diversity of materials and the improved awareness of waste products, it has become possible to produce different kinds of concrete, with various properties. In this study, class B420C ribbed bars with 16 mm diameter, were installed in four different concretes by using four different chemical adhesives, and a tensile force was applied. The stiffness, displacement ductility ratio, energy-dissipation capability and tensile force values were determined and the failure modes were interpreted from the load-displacement curves, obtained as a result of the experiments. It was found that the tensile force and energy-dissipation capacity, had increased as a result of installing anchor and applying a tensile force to the concrete, that was obtained by adding admixture materials, to the reference concrete. In the analytical part of the study, the formulation provided in ACI 318 was used, capacity and design strengths were identified, and their safety levels were determined in comparison with the test results.

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Section: Introductionunclassified

“…Studies were conducted to determine the environmental effects, various edge distances of the installed anchors, and the axial tensile behavior in the distance parameters between anchors (14)(15)(16). There are also studies, in which the epoxies installations of the anchors were used as variables (17,18).…”

Section: Introductionmentioning

confidence: 99%

Effect of synthetic zeolite on tobermorite synthesis

et al. 2023

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“…Various types of anchors serve as fasteners for structural elements and versatile items of equipment. Numerous experimental [1][2][3][4][5][6][7][8][9][10] and numerical [11][12][13][14][15] studies focus on mechanical characteristics of anchorages, embedded in concrete.…”

Section: Introductionmentioning

confidence: 99%

Behavior of Anchors Embedded in Concrete Damaged by the Maximum Considered Earthquake: An Experimental Study

Kabantsev,

Kovalev

2023

Buildings

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The article presents experimental tests carried out to investigate the effect of crack width (0.4, 0.8, 1.5, and 3.0 mm) on the behavior of anchor bolts under static and dynamic loading. Ultimate loads for anchors reached 220 kN depending on the anchor type, the diameter, and the crack opening width. Mechanical and bonded anchors were studied as the most frequently used anchor types. Two states of concrete, resulting from the design earthquake and the maximum considered earthquake, were simulated in the course of the experiments. Within the framework of the study, dependencies between the bearing capacity and stiffness of anchorages, on the one hand, and the level of concrete damage, on the other hand, were identified for different types of anchors. The data, generated in the course of the study, were used to identify the types of anchorages recommended for embedment in seismic areas. Plasticity coefficients and seismic load reduction coefficients were determined for different types of anchors and levels of concrete damage as a result of experimental studies. Reduction coefficients can be contributed to the design of anchorages embedded in seismic areas.

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“…It is important to choose the appropriate material for the place to be used in order to obtain the desired performance. It has been observed that chemical adhesives used for the same purpose can give different results in terms of tensile strength (Bajer and Barnat, 2012;Çalışkan and Aras, 2017). Chemical adhesives are known as epoxy or resin.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, the importance of chemical adhesives has gradually increased. Chemical adhesives can be polyester, vinylester, epoxy based or epoxy acrylate based (Cook, 1993, Çalışkan andAras 2017). Apart from chemical adhesives, anchor rods can also be planted with mortar called grout (Porcarelli, et al 2021).…”

Section: Introductionmentioning

confidence: 99%

Experimental investigations the effects of dusty, humidity and temperature conditions on chemical anchors

Çalışkan,

Aras,

Ağdağ

2023

RDLC

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Chemical anchor applications are frequently used to add new structural elements to existing structures. Chemical anchors can be applied quickly and easily, if anchors apply according to a detailed installation and cleaning procedure depending on environmental conditions and workmanship. In this work, the relationship between the axial tensile capacity of chemical anchors and the effect of dust, humidity, and temperature were examined as adverse conditions. The effect of using different conditions, anchorage diameters and embedment depth on the tensile strength of the anchors was evaluated. In the experimental study, anchors diameter 12, 16 and 20 mm were selected to be used as anchors. The depth of embedding was determined to be 5, 10, 15 and 20 times the diameter of used anchors. The initial stiffness, displacement ductility ratio, energy absorption capacity, failure modes, and safety levels according to ACI 318 were obtained by using the load-displacement curves. According to the parameters considered in the experimental program, the most unfavorable situation was obtained in anchors embedded in a wet environment. In addition, it was observed that the diameter of the drilled holes causes a decrease in the axial tensile capacity by increasing the exposure time of the anchors to water and temperature.

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Experimental investigation of behaviour and failure modes of chemical anchorages bonded to concrete

Cited by 14 publications

References 11 publications

Effect of synthetic zeolite on tobermorite synthesis

Effect of synthetic zeolite on tobermorite synthesis

Behavior of Anchors Embedded in Concrete Damaged by the Maximum Considered Earthquake: An Experimental Study

Experimental investigations the effects of dusty, humidity and temperature conditions on chemical anchors

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