The effect of blast furnace slag on the self-compactability of pumice aggregate lightweight concrete

Kurt, Murat; Kotan, Türkay; Gül, Muhammed Said; Gül, Rüstem; Aydın, Abdulkadir Cüneyt

doi:10.1007/s12046-016-0462-2

Cited by 21 publications

(13 citation statements)

References 15 publications

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“…One of the main parameters for concrete to gain strength is having developable mechanical properties. The mechanical property of cement-based material is needed by designers for stiffness and deflections evaluation and is fundamental for the proper modelling of its constitutive behaviour and its proper use in various structural applications [11]. Therefore, determining the mechanical properties of concrete is important for design [12].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Fly Ash Concrete with Scanning Electron Microscopy and X-Ray Diffraction

Uzbaş¹,

Aydın²

2019

Adv. Sci. Technol. Res. J.

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In this study, the effects of using different ratios of fly ash on hydration products as well as the mechanical and microstructural properties of hardened concrete were investigated. Portland cement was replaced with 5%, 10%, 15% and 20% fly ash (FA) by weight. The microstructural properties of the obtained samples were investigated by means of X-ray diffraction (XRD) and Scanning electron microscopy (SEM). Fly ash has negative effect on 7 days concrete strength; however, it was seen that fly ash increases the compressive strength of 28 and 90 days concrete. The XRD analysis showed that the ratio of calcium hydroxide (CH), which is produced by hydration, decreases depending on the concrete age and the amount of fly ash. The SEM analysis showed that the usage of fly ash decreases gaps and increases C-S-H which is also a hydration production. When Portland cement was replaced with 10% fly ash by weight, compressive strength has increased and microstructure of concrete has improved. The reason for this is filling of gaps by fly ash and the decrease in the amount of Ca(OH) 2 due to the reaction between fly ash and Ca(OH) 2 . Within this scope, the development in microstructure of fly ash concrete was evaluated in 90 days duration and a change of the development with compressive strength was investigated.

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Section: Introductionmentioning

confidence: 99%

Analysis of Fly Ash Concrete with Scanning Electron Microscopy and X-Ray Diffraction

Uzbaş¹,

Aydın²

2019

Adv. Sci. Technol. Res. J.

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“…Steel fiber-reinforced concrete is casted and compressed as a simple concrete. The mixture of steel fiber reinforced concrete is designated the same as simple concrete.it is important to consider how fibres are invariably spread, are avoided to be detached and to be balled, and an efficient mixture is produced to cast, compact, and finish concrete [15][16][17][18].…”

Section: Steel Fiber-reinforced Concretementioning

confidence: 99%

Hybrid Fiber Reinforced Concrete With Pozzolanic Materials

Fard¹

2020

CEBACOM

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This paper investigates the possibility of combining steel fibers with different weight percentages along with their functions in increasing compressive strength, indirect tensile strength and bending strength. It`s been considered an important economic issue for a long time the ability to service and increase the load-bearing capacity of structural materials. Concrete as a widely used structural material is widely used today. Despite its remarkable properties including high ductility, high durability, longevity, availability and low cost, concrete is a brittle material and performs extremely poor under flexural and tensile loads. In general, the breakdown and destruction of concrete is strongly dependent on the formation of cracks and micro-cracks. As the loading increases, the micro-cracks interconnect and form cracks. In order to address this problem and to create homogeneous conditions, a series of thin filaments has been used throughout the concrete in recent decades; They are called fibers. Steel fiber is one of the most commonly used fibers in concrete. In this study, the compressive strength of concrete was investigated which in some specimens reinforced with steel and containing pozzolanic materials, the compressive strength of control samples increased with the use of fiber etc. In the present study, the flexural and tensile strength of steel fiber reinforced specimens were investigated. According to the results, flexural strength increases with increase in steel fibers. The designs contain 1%, 1.5% and 2% of the Dramix hooked steel fibers used in the research. By reinforcing the specimens with steel fibers, the behavior of tensile concrete is much more flexible than that of non-steel specimens.

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“…Among the slags obtained are the pelletized slag, expanded or foamed slag, air‐cooled BFS, and granulated BFS. The sector has recycled almost 70% of the slag produced during 2014 in Spain through different uses, mainly in cement manufacture, conventional and self‐compacting concretes, geopolymers, and road construction . There are still 30% of slags that are going to landfill.…”

Section: Introductionmentioning

confidence: 99%

Development of a paste for passive fire protection mainly composed of granulated blast furnace slag

Ríos

Arenas

Cifuentes

et al. 2019

Env Prog and Sustain Energy

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In this study, the behavior of granulated blast furnace slag as a component of passive fire protection materials is evaluated. To investigate the performance of blast furnace slag, different replacement levels from 0 to 80 wt% have been analyzed. Different properties, such as physical, mechanical, and insulating capacity and leaching, have been thoroughly analyzed. Pastes made of a combination of granulated blast furnace slag and gypsum can be potentially used as a component in construction materials for passive protection against fire. The results indicate that the mechanical properties diminish when the slag content increases. It was concluded that replacements lower than 60 wt% comply with all the mechanical demands. A slight reduction of the insulating capacity was observed when the slag content was increased. Additionally, no heavy metal leaching problems have been detected.Significance: The current research presents the results of a study to reuse granulated blast furnace slag in fire-resistant pastes with gypsum. Blast furnace slags decrease the thermal diffusivity of the paste at high temperatures, improving its insulating capacity. It facilitates its use in specific and high-value applications with similar properties to commercial materials and increases the recycling rate with any heavy-metal leaching problem. K E Y W O R D Scompressive strength, heat transfer, leaching, solid waste

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The effect of blast furnace slag on the self-compactability of pumice aggregate lightweight concrete

Cited by 21 publications

References 15 publications

Analysis of Fly Ash Concrete with Scanning Electron Microscopy and X-Ray Diffraction

Analysis of Fly Ash Concrete with Scanning Electron Microscopy and X-Ray Diffraction

Hybrid Fiber Reinforced Concrete With Pozzolanic Materials

Development of a paste for passive fire protection mainly composed of granulated blast furnace slag

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