scholarly journals Effect of Thickness and Fibre Volume Fraction on Impact Resistance of Steel Fibre Reinforced Concrete (SFRC)

2016 ◽  
Vol 32 ◽  
pp. 012026
Author(s):  
Zakaria Che Muda ◽  
Fathoni Usman ◽  
Agusril Syamsir ◽  
Chen Shao Yang ◽  
Kamal Nasharuddin Mustapha ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Steel Fibre ◽  
Volume Fraction ◽  
Fibre Volume Fraction ◽  
Impact Resistance ◽  
Fibre Volume ◽  
Fibre Reinforced Concrete ◽  
Steel Fibre Reinforced Concrete

scholarly journals A Combined Electromagnetic Induction and Radar-based Test for Quality Control of Steel Fibre Reinforced Concrete

2019 ◽  
Author(s):  
Janusz Kobaka ◽  
Jacek Katzer ◽  
Tomasz Ponikiewski
Keyword(s):  
Reinforced Concrete ◽  
Electromagnetic Induction ◽  
Steel Fibre ◽  
3D Visualization ◽  
Concrete Slab ◽  
Fibre Volume ◽  
Fibre Reinforced Concrete ◽  
Destructive Testing ◽  
Steel Fibre Reinforced Concrete ◽  
Induction Technique

The authors of the paper have made an attempt to detect the fibre content and fibre spacing in a steel fibre reinforced concrete (SFRC) industrial floor. Two non-destructive testing (NDT) methods: an electromagnetic induction technique and a radar-based technique were applied. The first method allowed to detect the spacing in subsequent layers located in the thickness of the slab. The result of the second method was a 3D visualization of the detected fibre in the volume of concrete slab. The conducted tests showed aptitude and limitations of the applied methods in estimating fibre volume and spacing. The two techniques also allowed to locate the areas with relatively low fibre concentration which are very likely to be characterized by low mechanical properties.

scholarly journals Comparison of Flexural Performance of Lightweight Fibre-reinforced Concrete and Normalweight Fibre-reinforced Concrete

2017 ◽  
Author(s):  
Ahsan Ali ◽  
Shahid Iqbal ◽  
Klaus Holschemacher ◽  
Thomas A. Bier
Keyword(s):  
Reinforced Concrete ◽  
Strength Class ◽  
Lightweight Concrete ◽  
Volume Fraction ◽  
Fibre Volume Fraction ◽  
Lightweight Aggregate ◽  
Fibre Volume ◽  
Fibre Reinforced Concrete ◽  
Flexural Performance ◽  
Testing Environments

Current study encompasses comparison of flexural tests results of Normalweight Fibre-reinforced Concrete (NWFC) and Lightweight Fibre-reinforced Concrete (LWFC) beam specimens. Fibres are known for their positive effect on crack control, better post-cracking behaviour under flexure and for enhancing toughness. These improvements, however, come at the expense of degraded workability. Using lightweight aggregates of regular shape instead of heavier, irregular and rough textured normalweight aggregates can address the issue of poor workability of concrete besides other advantages that it will bring along with. Replacing normalweight aggregate with lightweight aggregate also has its demerits and in most cases under similar testing environments lightweight concrete has lower strength results. This paper covers evaluation of flexural performance for both LWFC and NWFC having similar compressive strength class. For this purpose 24 beams 150 × 150 × 700 mm in dimensions were tested under flexure. For a fair comparison, it was made sure that both the concretes (LWFC and NWFC) at every fibre volume fraction (0, 0.25, 0.5 and 0.75%) fell under the same strength class.

scholarly journals A Combined Electromagnetic Induction and Radar-Based Test for Quality Control of Steel Fibre Reinforced Concrete

Materials ◽  
2019 ◽  
Vol 12 (21) ◽  
pp. 3507 ◽  
Author(s):  
Kobaka ◽  
Katzer ◽  
Ponikiewski
Keyword(s):  
Reinforced Concrete ◽  
Electromagnetic Induction ◽  
Steel Fibre ◽  
3D Visualization ◽  
Concrete Slab ◽  
Fibre Volume ◽  
Fibre Reinforced Concrete ◽  
Destructive Testing ◽  
Steel Fibre Reinforced Concrete ◽  
Induction Technique

In this paper, the authors made an attempt to detect the fibre content and fibre spacing in a steel fibre reinforced concrete (SFRC) industrial floor. Two non-destructive testing (NDT) methods, an electromagnetic induction technique and a radar-based technique, were applied. The first method allowed us to detect the spacing in subsequent layers located in the thickness of the slab. The result of the second method was a 3D visualization of the detected fibre in the volume of concrete slab. The conducted tests showed aptitude and limitations of the applied methods in estimating fibre volume and spacing. The two techniques also allowed us to locate the areas with relatively low fibre concentration, which are very likely to be characterized by low mechanical properties.

scholarly journals Assessment of Water Permeability Test on Polypropylene based Self-Compacted Fibre Reinforced Concrete (PSCFRC)

2021 ◽  
Vol 1197 (1) ◽  
pp. 012080
Author(s):  
A Shelorkar
Keyword(s):  
Compressive Strength ◽  
Reinforced Concrete ◽  
Water Permeability ◽  
Volume Fraction ◽  
Fibre Volume Fraction ◽  
Fibre Volume ◽  
Polypropylene Fibre ◽  
Fibre Reinforced Concrete ◽  
Polypropylene Fibres ◽  
Concrete Mix

Abstract An investigation conducted to study the effect of water permeability and strength characteristics such as compressive strength of Polypropylene self-compacted fibre reinforced concrete (PSCFRC) is presented. Polypropylene fibres of lengths, 35 mm with a diameter of 0.44 mm, were systematically combined in different mix proportions to combinations of 0.2%, 0.4%, and 0.6% Polypropylene fibre volume fraction. For comparison, a concrete mix with no fibres was also mixed. A total of 72 cube specimens of 150 mm were tested, 36 each for compressive strength and water permeability at 28 and 56 days of curing. According to the findings of this study, a fibre combination of SCFRC 0.6 percent is the most acceptable fibre composition to use in Polypropylene self-compacted fibre reinforced concrete (PSCFRC) for maximum performance in terms of compressive strength and water permeability requirements together.

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