Mechanical properties of reactive powder concrete containing high volumes of ground granulated blast furnace slag

Yazıcı, Halit; Yardımcı, Mert Yücel; Yiğiter, Hüseyin; Aydın, Serdar; Türkel, Selçuk

doi:10.1016/j.cemconcomp.2010.07.005

Cited by 260 publications

(75 citation statements)

References 30 publications

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“…This behavior is related to the broken of the fibers and/or pulled out of fibers from the matrix. Similar behavior was also reported for ultra-high performance fiber reinforced composites [29,30]. HSC series exhibited higher first crack load values compared to NSC series.…”

Section: Load-deflection Relationshipsupporting

confidence: 69%

Effects of fiber strength on fracture characteristics of normal and high strength concrete

Aydın

2013

Per. Pol. Civil Eng.

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IntroductionPlain concrete is a brittle material with low tensile strength and strain capacity. This undesired behavior can be improved by inclusion of short discrete fibers into the matrix which prevent or control initiation, propagation, or coalescence of cracks [1]. Steel, glass, carbon, wood, synthetic and natural fibers are used for this purpose. The inclusion of fibers in concrete substantially improves many of its engineering properties such as tensile strength, flexural strength, fracture toughness, resistance to fatigue, impact, wear and thermal shock [2][3][4][5][6][7]. The most important effect of fiber inclusion is to prevent crack propagation in concrete. The extension and propagation of microcracks that occur due to the internal stresses in concrete are prevented by stress transfer capability of randomly distributed fibers [8][9][10].The performance of steel fiber reinforced concrete (SFRC) depends on the properties of concrete and the fibers. The aspect ratio (length/diameter), volume fraction and distribution of fibers influence the performance of SFRC [9,11]. Fiber efficiency is mainly controlled by the resistance of the fibers to pullout, which in turn depends on the bond strength at the fiber -matrix interface. The pull-out type of failure is gradual and ductile when compared with the more rapid and possibly catastrophic failure that may occur if the fibers break in tension [12]. Since the high strength concrete is more brittle than normal strength concrete [13,14] fiber performance in high strength matrix becomes more important parameter. Bayramov et al. [11] have examined the fracture surfaces of SFRC after splitting tensile test and reported that the fibers (tensile strength of 1050 MPa) with the aspect ratio of 65 (l/d = 65) were pulled out of the matrix while the fibers with the aspect ratio of 80 (l/d = 80) were broken in the concrete matrix strength of 60 MPa. Later,Şahin et al. [15] have investigated the effects of steel fiber strength (tensile strengths of 1100 and 2000 MPa) on mechanical and fracture properties of high strength concretes. They have reported the significant influence of fiber tensile strength on fracture energy and characteristic length of high strength concrete for the aspect ratios of 80 and 85. The effectiveness of tensile strength of steel fibers in crack bridging performance of high strength SFRCs has been shown in this study for these aspect ratios. Although

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Section: Load-deflection Relationshipsupporting

confidence: 69%

Effects of fiber strength on fracture characteristics of normal and high strength concrete

Aydın

2013

Per. Pol. Civil Eng.

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“…The model that minimized the error values and percentage (RMSE, MAE and AAD%) and maximized (R 2 ) is selected as the optimum network. These statistical parameters are used to compare the performance of the various methods (ANN and RT) as follows:  RMSE Root Mean Square Erroris given in equation (3).The lowest RMSE coefficient is recommended.  MAE the Mean Absolute Error, using equation (4).…”

Section: Artificial Neural Network Model Performancementioning

confidence: 99%

“…RPC is a new generation concrete developed through microstructure enhancement techniques for cementitious materials. As compared to ordinary cementbased materials, the primary improvements of RPC include the particle size homogeneity, porosity, and microstructures [3]. Nowadays, RPC is regarded as a promising material for special pre-stressed and precast concrete members, including those industrial and nuclear waste storage facilities.…”

Section: Introductionmentioning

confidence: 99%

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Predict the Ultimate Moment Capacity of Reactive Powder Concrete Beams Exposed to Fire Flame Using Artificial Neural Network and Multiple Linear Regression Models

Kadhum¹,

Mohammed²

2017

IJET

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I. INTRODUCTIONReactive powder concrete (RPC) is the generic name for a class of cementitious composite materials developed by the technical division of Bouygues, laboratory in France in the early 1990's. It is characterized by extremely good physical properties, particularly strength and ductility [1]. RPC is a relatively new cement-based material composed of cement, ultra-fine reactive powder, and high-quality fine aggregate. Through elimination of the coarse aggregates and reducing the water-tocementitious material ratio, RPC has the unique properties of ultra-high compressive strength and excellent durability [2]. RPC is a new generation concrete developed through microstructure enhancement techniques for cementitious materials. As compared to ordinary cementbased materials, the primary improvements of RPC include the particle size homogeneity, porosity, and microstructures [3]. Nowadays, RPC is regarded as a promising material for special pre-stressed and precast concrete members, including those industrial and nuclear waste storage facilities.More and more attention has been paid on the mechanical properties of RPC at room temperature [3], [4], but few studies have been conducted on the residual mechanical properties of RPC after elevated temperatures [5], [6].Most of the previous studies indicated two important components (as key components) for the successful performance of the concrete in fire; the first deals with its essential properties as a construction material, and the second one deals with its functionality in a structure. Concrete was known to be non-combustible with slow rate of heat transfer [7].Many researchers studied the effect of fire on ordinary concrete, reinforced concrete members on exposing such members to high temperatures in special ovens or fire flame. They worked on the strength and deformation properties at elevated temperatures. However, no works were done on the structural behavior of reactive powder concrete (RPC) beam specimens exposed to direct fire flame.

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“…In the case of the blast-furnace slag, which is a by-product of the steel industry, several studies on its use as a substitute material for cementitious materials have been reported [2][3][4][5]. Moreover, some studies on the application of the ferronickel slag in concrete production have been reported [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Effect of Ferronickel Slag Powder on Microhydration Heat, Flow, Compressive Strength, and Drying Shrinkage of Mortar

Cho

Kim

et al. 2018

Advances in Civil Engineering

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is paper investigates the effect of ferronickel slag powder on microhydration heat, flow, compressive strength, and drying shrinkage of mortar. In South Korea, approximately two million tons of ferronickel slag, a by-product of the nickel industry, are produced every year. However, a considerable amount of this by-product is treated as waste and dumped in landfills. Ferronickel slag powder was used to replace Portland cement at a ratio of 15% by binder mass. In addition, the mortar test with other cementitious materials, including blast-furnace slag powder and fly ash, was conducted and compared with the sample containing ferronickel slag powder. According to this investigation, the microhydration heat of mortar and concrete can be reduced with the appropriate use of ferronickel slag powder. In addition, in order to achieve higher concrete compressive strengths, it is apparently advantageous to use the ferronickel slag powder and fly ash together rather than using ferronickel slag powder alone.

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Mechanical properties of reactive powder concrete containing high volumes of ground granulated blast furnace slag

Cited by 260 publications

References 30 publications

Effects of fiber strength on fracture characteristics of normal and high strength concrete

Effects of fiber strength on fracture characteristics of normal and high strength concrete

Predict the Ultimate Moment Capacity of Reactive Powder Concrete Beams Exposed to Fire Flame Using Artificial Neural Network and Multiple Linear Regression Models

Effect of Ferronickel Slag Powder on Microhydration Heat, Flow, Compressive Strength, and Drying Shrinkage of Mortar

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