Effects of volume fraction to the strength and ductility of a small-scaled fibre reinforced concrete beam

2018 ◽  
Author(s):  
H. Liong-Yew ◽  
N. N. Sarbini ◽  
I. Izni Syahrizal ◽  
I. Mohammad ◽  
A. S. L. Nor Hasanah
Keyword(s):  
Reinforced Concrete ◽  
Concrete Beam ◽  
Volume Fraction ◽  
Reinforced Concrete Beam ◽  
Fibre Reinforced Concrete ◽  
Strength And Ductility

Deflection Behaviour of Irregular-Shaped Polyethylene Terephthalate Fibre Reinforced Concrete Beam

2014 ◽  
Vol 911 ◽  
pp. 438-442 ◽  
Author(s):  
J.M. Irwan ◽  
R.M. Asyraf ◽  
N. Othman ◽  
H.B. Koh ◽  
A.K. Aeslina ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Polyethylene Terephthalate ◽  
Concrete Beam ◽  
Volume Fraction ◽  
Reinforced Concrete Beam ◽  
Rc Beam ◽  
Fibre Reinforced Concrete ◽  
Rc Beams ◽  
Polyethylene Terephthalate Fibre ◽  
Stage Yield

This paper reports the results on deflection behaviour of reinforced concrete (RC) beam conducted using irregular-shaped Polyethylene Terephthalate (IPET) as a fibre. Three volume fraction of IPET fibre is used namely, 0.5%, 1% and 1.5%. All RC beam specimens are tested under four point loading under flexural capacity behaviour. The results for deflection behaviour namely cracking stage, yield stage and ultimate stage and ductility are reported. The results than are compared with control RC beam. It is found that the addition of IPET fibre improves the first crack and ultimate strength as well as ductility of RC beams proportional to the increment of volume fraction of IPET fibre. Therefore, based on the results reported, the addition of IPET fibre significantly increases the deflection behaviour of RC beam.

scholarly journals DUCTILITY RESPONSE OF HYBRID FIBRE REINFORCED CONCRETE BEAMS

2018 ◽  
pp. 174-179 ◽  
Author(s):  
Eswari Natarajan
Keyword(s):  
Reinforced Concrete ◽  
Ultimate Load ◽  
Concrete Beams ◽  
Volume Fraction ◽  
Fibre Volume ◽  
Reinforced Concrete Beams ◽  
Fibre Reinforced Concrete ◽  
Hybrid Fibre ◽  
Service Load ◽  
Strength And Ductility

Abstract: The effect of fibre content on the Strength and ductility behaviour of hybrid fibre reinforced concrete (HFRC) beams having different fibre volume fractions was investigated. The parameters of this investigation included service load, ultimate load, service load deflection, ultimate load deflection, crack width, deflection ductility and energy ductility. The fibre volume fraction (Vf) ranged from 0.0 to 2.0 percent. Steel and polyolefin fibres were combined in different proportions and their impact on the above parameters was studied. The ductile response of hybrid fibre reinforced concrete beams was compared with that of control beam. The test results show that addition of 2.0 percent by volume of hybrid fibres improve the strength and ductility appreciably. Empirical expressions for predicting the strength and ductility of hybrid fibre reinforced concrete (HFRC) are proposed based on regression analysis. A close agreement has been obtained between the predicted and experimental results.

scholarly journals Scaled Approach to Designing the Minimum Hybrid Reinforcement of Concrete Beams

Materials ◽  
2020 ◽  
Vol 13 (22) ◽  
pp. 5166
Author(s):  
Andrea Gorino ◽  
Alessandro Fantilli
Keyword(s):  
Reinforced Concrete ◽  
Concrete Beam ◽  
Concrete Beams ◽  
Volume Fraction ◽  
Testing Procedure ◽  
Reinforced Concrete Beam ◽  
Fiber Reinforced Concrete ◽  
Scale Model ◽  
Fiber Volume ◽  
Technical Literature

To study the brittle/ductile behavior of concrete beams reinforced with low amounts of rebar and fibers, a new multi-scale model is presented. It is used to predict the flexural response of an ideal Hybrid Reinforced Concrete (HRC) beam in bending, and it is validated with the results of a specific experimental campaign, and some tests available in the technical literature. Both the numerical and the experimental measurements define a linear relationship between the amount of reinforcement and the Ductility Index (DI). The latter is a non-dimensional function depending on the difference between the ultimate load and the effective cracking load of a concrete beam. As a result, a new design-by-testing procedure can be established to determine the minimum reinforcement of HRC elements. It corresponds to DI = 0, and can be considered as a linear combination of the minimum area of rebar (of the same reinforced concrete beam) and the minimum fiber volume fraction (of the same fiber-reinforced concrete beam), respectively.

scholarly journals Cracking Propagation and Pattern Behaviour of Irregular-Shaped Polyethylene Terephthalate Fibre Reinforced Concrete Beam

2015 ◽  
Vol 773-774 ◽  
pp. 911-915 ◽  
Author(s):  
J.M. Irwan ◽  
R.M. Asyraf ◽  
N. Othman ◽  
H.B. Koh ◽  
A.K. Aeslina ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Polyethylene Terephthalate ◽  
Concrete Beam ◽  
Volume Fraction ◽  
Reinforced Concrete Beam ◽  
Rc Beam ◽  
Materials Properties ◽  
Tensile Strength Test ◽  
Structural Test ◽  
Polyethylene Terephthalate Fibre

This paper reports the results on cracking propagation and pattern of reinforced concrete (RC) beam conducted using irregular-shaped Polyethylene Terephthalate (IPET) as a fibre. Three volume fraction of IPET fibre is used namely, 0.5%, 1% and 1.5%. All RC beam specimens are tested under four point loading under flexural capacity behaviour. Prior to structural test, the materials properties which include the compressive and tensile strength test and modulus of elasticity test were determined. The results than are compared with control RC beam. It is found that the RC beam with IPET fibre does not significantly change the behaviour of failure mode, cracking propagation and pattern compared to control RC beam.

Fibre-reinforced concrete beam assemblages subject to column loss

2016 ◽  
Vol 68 (6) ◽  
pp. 305-317 ◽  
Author(s):  
Hamid Valipour ◽  
Nima Vessali ◽  
Stephen Foster
Keyword(s):  
Reinforced Concrete ◽  
Concrete Beam ◽  
Reinforced Concrete Beam ◽  
Fibre Reinforced Concrete

Numerical Modelling for Shear Strength Evaluation of a High Performance Fibre Reinforced Concrete Beam According to fib Model Code 2010 Guidelines

2017 ◽  
Author(s):  
Rodolfo Giacomim Mendes de Andrade ◽  
Magno Teixeira Mota ◽  
Michèle Schubert Pfeil ◽  
Romildo Dias Toledo Filho ◽  
Ronaldo Carvalho Battista ◽  
...  
Keyword(s):  
Shear Strength ◽  
Reinforced Concrete ◽  
Numerical Modelling ◽  
High Performance ◽  
Concrete Beam ◽  
Reinforced Concrete Beam ◽  
Fibre Reinforced Concrete ◽  
Model Code ◽  
Model Code 2010 ◽  
High Performance Fibre
Sign in / Sign up

Export Citation Format

Share Document