Sprayed Glass Fiber–Reinforced Mortar with or without Basalt Textile Reinforcement for Jacketing of Low-Strength Concrete Prisms

Ateş, Ali; Khoshkholghi, Soheil; Tore, Erkan; Maraşlı, Muhammed; İlki, Alper

doi:10.1061/(asce)cc.1943-5614.0000922

Cited by 24 publications

(9 citation statements)

References 50 publications

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“…The specific gravity, tensile strength, and melting point of the AR-GF used were 2800 kg/m 3 , 2450 MPa and 800 °C, respectively. In a previous study [26], it was confirmed that AR-GF can be used positively in sputtered GRC. In addition, if AR-GF is homogeneously dispersed, it can prevent the formation and development of micro cracks in the shell elements.…”

Section: Methodsmentioning

confidence: 66%

Production and Characterization of GRC-SWCNT Composites for Shell Elements

Subaşı

Dehghanpour²,

Maraşlı³

2022

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Nano-sized defects in Glass fiber Reinforced Concrete (GRC) shell elements can cause damage over time, leading to mechanical and durability problems. Therefore, in this study an experimental program was conducted to investigate the application of single-walled carbon nanotube as a nano-additive material in GRC. Since there is no study on GRC-carbon nanotube (CNT) composites in the literature, the behavior of CNTs on conventional concretes was discussed. Five different GRC-SWCNT composite mixtures containing 0, 0.007, 0.010, 0.015 and 0.020 wt.% single walled carbon nanotube (SWCNT) were obtained. Calcined kaolin and acrylic polymer were used as pozzolanic and chemical modification materials in the mixtures, respectively. Workability, density, capillarity, pressure, flexural, tensile, impact, Leeb hardness and FE-SEM tests of the produced samples were carried out. According to the results obtained, the optimum SWCNT ratio in GRC mixtures was found to be 0.015 %. It was observed that there was a linear relationship between the mechanical results. FE-SEM images confirmed that SWCNTs act as bridges for micro-cracks and reinforce the microstructure.

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Section: Methodsmentioning

confidence: 66%

Production and Characterization of GRC-SWCNT Composites for Shell Elements

Subaşı

Dehghanpour²,

Maraşlı³

2022

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“…In addition, the effect of prior strengthening and retrofitting of this specimen will be examined. Strengthening and retrofitting will employ innovative methods in which a glass fibre-reinforced concrete material (Ates et al, 2019) is applied to the surface of the masonry. The experimental tests will be conducted in Duzce, Turkey during the spring and summer of 2020.…”

Section: Methodsmentioning

confidence: 99%

Large Scale Experimental Settlement Tests to Evaluate Structural Models for Tunnelling-Induced Damage Analysis

Dalgic

Gulen

Acikgoz

et al. 2021

Challenges and Innovations in Geomechanics

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Underground construction activities, such as tunnelling, cause local ground movements to occur. Nearby surface structures interact with the moving ground, potentially leading to building damage. Although it is understood that the severity of building damage is influenced by the façade opening ratio (OpR) and the stiffness of the floors, experimental work in this area is lacking. This paper describes the specification and design of an experimental campaign on brick masonry buildings subjected to vertical base movements. The specimens are half-scale models of walls of two-storey buildings; models with different window arrangements and with/without floor slabs are examined. To design the experimental setup, 3D finite element analyses of the model walls were conducted. Key analysis results, presented in this paper, indicate how the examined structural properties (OpR, building weight, floor stiffness) are expected to influence the patterns of damage in the masonry. The finite element results are also used to design an instrumentation system comprising Fibre Bragg Grating (FBG) sensors and a digital image correlation (DIC) system. Data from the tests will support the formulation and validation of structural models for predicting tunnelling-induced damage in masonry buildings.

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“…For some reason, it is preferred to use fine aggregate in building facade cladding. The most important reasons are that they are shell elements and the application of the spraying method [4]. Apart from spraying methods, it is preferred to use fine aggregate in ultra-high-performance concrete (UHPC) shells produced for facade cladding [5,6].…”

Section: Introductionmentioning

confidence: 99%

Effects of single-walled carbon nanotubes and steel fiber on recycled ferrochrome filled electrical conductive mortars

Dehghanpour¹,

Doğan

Subaşı

et al. 2022

Journal of Sustainable Construction Materials and Technologies

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The production of electrically conductive concrete was introduced years ago among construction materials, generally for anti-icing. The present study investigates the electrical, mechanical, dynamic, and microstructural properties of recycled ferrochrome filled cementitious mortars, containing single-walled carbon nanotubes (SWCNTs) and steel fiber. 7, 14, and 28-day non-destructive and 28-day compressive and bending tests of cementitious conductive mortars obtained from five different mixtures were performed. Two-point uniaxial method was used to determine the electrical conductivity properties of the samples. The damping ratio of the samples was obtained by performing dynamic resonance tests. Ultrasound pulse velocity (UPV) and Leeb hardness tests were performed as other non-destructive testing methods. Microstructure analysis at the interfaces of conductive concrete samples were characterized by scanning electron microscopy (SEM), EDS (Energy-Dispersive X-ray Spectroscopy), and X-ray diffraction (XRD). According to the experimental results, all data agreed and confirmed each other. When SWCNT is used in combination with steel fiber, the conductive mortar samples exhibited reasonable conductivity, while their mechanical properties turned out to below.

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Sprayed Glass Fiber–Reinforced Mortar with or without Basalt Textile Reinforcement for Jacketing of Low-Strength Concrete Prisms

Cited by 24 publications

References 50 publications

Production and Characterization of GRC-SWCNT Composites for Shell Elements

Production and Characterization of GRC-SWCNT Composites for Shell Elements

Large Scale Experimental Settlement Tests to Evaluate Structural Models for Tunnelling-Induced Damage Analysis

Effects of single-walled carbon nanotubes and steel fiber on recycled ferrochrome filled electrical conductive mortars

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