Dynamic Tests of Steel Fiber Reinforced Concrete

strength fiber-reinforced concrete (HSFRC) m a se1sm1cally active zone. It has been shown that reverse loads involve severe bond deterioration. The control of macrocracks by fibers enhances not only the mechanical properties of high· strength concrete in tension and comp~ssion, but also thJ structural behavior. According to Lemmtre and Chaboche,

4] P.T. Ravichandran "Fiber Reinforced Concrete", KIT, Coimbatore, May 7-8, 1999, pp 229-234. [5] T Sekar "Fiber Reinforced Concrete from Industrial ste Fibers a Feasibility Study", IE (I)Journal-CV, vol 84, February 2004. [6] L. Kutzing "Shear Strength of Steel Fiber Reinforced Concrete (SFRC) Beams and Plates University Leipzig,

The present study proposes spiral steel fibers to reinforce concrete material and carries out both split Hopkinson pressure bar (SHPB) tests to investigate the material properties under high-speed compression and split tension and drop-weight tests to study the behavior of spiral fiber reinforced concrete beams under centre-point impact loads.

1 PUNCHING SHEAR RESISTANCE OF STEEL FIBER REINFORCED CONCRETE FLAT SLABS L. NGUYEN-MINH1*, M. ROVŇÁK2†, T. TRAN-QUOC3, and K. NGUYEN-KIM4 1, 3, 4 Division of Structural Design, Faculty of Civil Engineering, HCMUT, Vietnam 2 Institute of Technical and Technological Safety, University of Security Management, Slovakia ABSTRACT This paper deals with behavior and capacity of steel fiber

Fiber reinforced concrete (FRC) is an advanced form of the reinforced concrete cast by mixtures of cement, mortar, or concrete and discontinuous, discrete, uniformly distressed suitable fibers. Many researchers prove that the addition of small, closely spaced, and uniformly dispersed fibers to concrete plays the role of cracker arrester and substantially enhance its static and dynamic properties.

This paper investigated the effects of combining fibers with self-consolidating concrete (SCC). 12 series of test specimens were prepared using three kinds of fibers including steel, polyphenylene sulfide (PPS) and glass fibers with four different volumes fractions and one specimen without fibers as a reference sample. All plans were subjected to fresh concrete tests.

This paper for the first time, demonstrates that by determining the optimal amount and ratio of fibers (M and RTSF), sustainable hybrid fiber-reinforced concrete (SHFRC) with equal or better properties compared to ordinary fiber-reinforced concrete with only M fibers can be prepared.

volume basis, the hooked-end steel fiber contributed to the highest increase and the straight steel fiber provided the least (but appreciable) increase in the above-mentioned properties. Bayasi Z. et al (1989), Studied Optimum use of Pozzolanic materials in steel fiber reinforced concrete.

Concrete which is subjected to long-duration forces is prone to creep. The density of concrete varies, but is around 2,400 kilograms per cubic metre (150 lb/cu ft). Reinforced concrete is the most common form of concrete. The reinforcement is often steel rebar (mesh, spiral, bars and other forms). Structural fibers of various materials are

Oct 01,  · In this study, material responses obtained through impact tests, such as the drop weight test, the split Hopkinson pressure bar test, and the swinging pendulum test, are classified and briefly illustrated. The structural responses of several types of fiber-reinforced concrete with steel fibers are introduced and compared.

This study evaluates the effect of the amount of fibers in a concrete mix on the shear capacity of steel fiber-reinforced concrete beams with mild steel tension reinforcement and without stirrups. For this purpose, 10 beams were tested. Five different fiber volume fractions were studied: 0.0%, 0.3%, 0.6%, 0.9%, and 1.2%.

dynamic responses of carbon fiber reinforced concrete (CFRC) structures. Therefore, the effects of the stress rates and carbon fiber contents on the dynamic tension behavior of CFRC were investigated in this paper. The dynamic splitting tests of concrete with the fiber contents of 0, 0.1, 0.2, and 0.3% were

Parameters in the research study include concrete type, steel properties, fiber content, fiber properties, blast location and blast intensity. There exists a need to explore the use of new and innovative materials that can improve blast resistant performance of reinforced concrete columns and steel fiber reinforced concrete column.

The influence of concrete strength grades (C30, C40 and C50) and fiber contents (0, 40, 60 and 80 kg/m3) on the uniaxial compressive strength of steel fiber reinforced concrete and composite layers was analyzed. RFPA2D was utilized to simulate the damage process and stress-strain curve of the composite layer under uniaxial compression.

The behaviour of rubberized steel fiber-reinforced concrete was investigated by Liu et al. ( ) where adding steel fiber at 0.5% by volume led to an increase in dynamic impact factor and dynamic compressive strength, furthermore, the metal steel fiber showed increase strength of rubberized concrete to impact loading using the split Hopkinson

high-performance, self-consolidating, steel fiber reinforced concrete (UHP-SFRC). The keystone of safe and economically feasible designs with UHP-SFRC is dependant on its characterization in tension. Thus, in the present work, a detailed research study including both experimental and analytical components was

9. Narayanan R. and Toorani-Goloosalar. Z., (1979) Fiber reinforced concrete in pure torsion and in combined bending and torsion, Proceedings, Institution of Civil engineers, London Part2,Vol.67, 987-1001. 10. Midness S., (1980) Torsion tests of steel fiber reinforced concrete, The international journal of Cement Composites, vol.2, 85-89. 11.

To determine the validity of steel fiber reinforced expanded-shale lightweight concrete (SFRELC) applied in structures, the shear behavior of SFRELC structural components needs to be understood. In this paper, four-point bending tests were carried out on reinforced SFRELC beams with stirrups and a varying volume fraction of steel fiber from 0.4

Oct 21,  · The fibre reinforced concrete has been provided in small panels considering the workability. 37. Pavement with steel fibre reinforced concrete 38. Experiment Aim: To understand the effect of incorporation of polypropylene and steel fibers together in the hardened state of concrete.

Glass fiber-reinforced concrete (GRC) consists basically of a cementitious matrix composed of cement, sand, water, and admixtures, in which short-length glass fibers are dispersed. The effect of the fibers in this composite leads to an increase in the tension and impact strength of the material (Bentur and Mindess 1).

Steel fiber-reinforced concrete (SFRC) is concrete with steel fiber added and randomly distributed throughout the matrix, which forms a multi-phase non-homogeneous composite material. As a result of the crack resistant and reinforcing effects of the steel fibers. SFRC has been increasingly used in a wide range of engineering applications.

steel fiber (SF) and carbon fiber (CF) was evaluated by employing the hybrid effect index. Compressive toughness and impact toughness of SFRC), carbon fiber reinforced concrete (CFRC) and hybrid fiber reinforced concrete (HFRC) were explored at steel fiber volume fraction 0.5, 1, and 1.5%, and carbon fiber 0.1, 0.2, and 0.3%. Results

Tests on plain and steel fibre reinforced concrete specimens are to be conducted under tensile and compressive fatigue loads in order to develop materials damage models. The models to be developed are also to be corroborated with the behaviour of two large scale wind turbine foundations to be tested under fatigue loading.

FRC with 2% steel fiber by volume fraction and plain High Strength Concrete (HSC). Compressive and flexural tensile strength of each concrete composite were investigated to evaluate and compare their strain rate sensitivity through dynamic increase factor (DIF).

Twelve tests were conducted on reinforced concrete beams with three steel fiber-volume fractions (0, 0.5, and 0.75%), three shear span-depth ratios (2, 3, and 4), and two concrete compressive strengths (31 and 65 MPa). The results demonstrated that the nom-inal

Keywords: Fibre reinforced concrete (FRC), Compressive strength test and compressive strength. 1. INTRODUCTION Fiber-reinforced concrete (FRC) is a composite or structural material which consists of mortar, cement paste, or concrete with fibres of asbestos, glass, carbon, plastic, or steel which increases its structural integrity. It include