Influence of Steel fibers on the Shear Resistance of Lightweight Concrete I-Beams

10.14359/4201 ◽  
1993 ◽  
Vol 90 (1) ◽  
Keyword(s):  
Lightweight Concrete ◽  
Shear Resistance ◽  
Steel Fibers

scholarly journals SHEAR CAPACITY OF SUSTAINABLE LIGHT WEIGHT CONCRETE BEAMS

2021 ◽  
Vol 25 (02) ◽  
pp. 36-45
Author(s):  
Aseel Q. Makhool ◽  
◽  
Wissam K. Alsaraj ◽  
Luma A. Zghair ◽  
◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Steel Fiber ◽  
Lightweight Concrete ◽  
Concrete Beams ◽  
Shear Resistance ◽  
Shear Capacity ◽  
Steel Fibers ◽  
Reinforced Concrete Beams ◽  
Light Weight ◽  
Iron Filing

This Lightweight concrete is one of the important types familiar of concrete, as the local stone Attapulgite was used as aggregate after treating it with a solution of minors, then it was used in pouring five -reinforced concrete beams by adding steel fiber and iron filing separately with two percentages of 0.5 and 1, these beams were examined to determine the shear capacity. The results showed that iron filing by 1% improve the mechanical properties of concrete and similar to that of using steel fibers, but with a minimum effect. The results also showed that adding 1% of steel filing improves the maximum shear resistance and the first cracking resistance of the concrete by 38%.

scholarly journals SHEAR CAPACITY OF SUSTAINABLE LIGHT WEIGHT CONCRETE BEAMS

2021 ◽  
Vol 25 (02) ◽  
pp. 36-45
Author(s):  
Aseel Q. Makhool ◽  
◽  
Wissam K. Alsaraj ◽  
Luma A. Zghair ◽  
◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Steel Fiber ◽  
Lightweight Concrete ◽  
Concrete Beams ◽  
Shear Resistance ◽  
Shear Capacity ◽  
Steel Fibers ◽  
Reinforced Concrete Beams ◽  
Light Weight ◽  
Iron Filing

This Lightweight concrete is one of the important types familiar of concrete, as the local stone Attapulgite was used as aggregate after treating it with a solution of minors, then it was used in pouring five -reinforced concrete beams by adding steel fiber and iron filing separately with two percentages of 0.5 and 1, these beams were examined to determine the shear capacity. The results showed that iron filing by 1% improve the mechanical properties of concrete and similar to that of using steel fibers, but with a minimum effect. The results also showed that adding 1% of steel filing improves the maximum shear resistance and the first cracking resistance of the concrete by 38%.

Fresh and hardened-state properties of self-compacting lightweight concrete reinforced with steel fibers

2016 ◽  
Vol 104 ◽  
pp. 284-292 ◽  
Author(s):  
Thiago Melo Grabois ◽  
Guilherme Chagas Cordeiro ◽  
Romildo Dias Toledo Filho
Keyword(s):  
Lightweight Concrete ◽  
Steel Fibers ◽  
Hardened State

A Review on Ductile Self-Compacting Concrete

2013 ◽  
Vol 594-595 ◽  
pp. 433-438
Author(s):  
Muhd Fadhil Nuruddin ◽  
Kok Yung Chang ◽  
Norzaireen Mohd Azmee ◽  
Nasir Shafiq
Keyword(s):  
High Strength Concrete ◽  
High Performance ◽  
Lightweight Concrete ◽  
High Strength ◽  
Fiber Reinforced Concrete ◽  
Steel Fibers ◽  
Self Compacting Concrete ◽  
Factors Influencing ◽  
Recent Innovation ◽  
High Performance Fiber

Ductile self-compacting concrete (DSCC) also known as ultra-high-performance fiber reinforced concrete with a steel like compressive strength of up to 250 MPa and remarkable increase in durability compared to high-strength concrete can be considered as the most successful recent innovation in concrete construction. The achievement of DSCC has been made possible by the introduction of materials such as superplasticizers, microsilica and steel fibers. Incorporation of steel fibers in the mix made it feasible to design sustainable filigree, lightweight concrete constructions without any additional steel reinforcement. The purpose of this paper is to review the needs of DSCC and the factors influencing the workability of DSCC as well as the effect of the inclusion of steel fibers. Various studies concluded that the inclusion of steel fibers will increase the mechanical and durability properties but reduce the workability.

scholarly journals Investigation of Structural Characteristics of Palm Oil Clinker Based High-Strength Lightweight Concrete Comprising Steel Fibers

2021 ◽  
Author(s):  
Md. Akter Hosen ◽  
Mahad Issa Shammas ◽  
Sukanta Kumer Shill ◽  
Mohd Zamin Jumaat ◽  
U. Johnson Alengaram ◽  
...  
Keyword(s):  
Palm Oil ◽  
Lightweight Concrete ◽  
Structural Characteristics ◽  
High Strength ◽  
Steel Fibers

Effect of polypropylene and steel fibers on web-shear resistance of deep concrete hollow-core slabs

2020 ◽  
Vol 210 ◽  
pp. 110273
Author(s):  
Hang T.N. Nguyen ◽  
Kang Hai Tan ◽  
Tetsushi Kanda
Keyword(s):  
Shear Resistance ◽  
Steel Fibers ◽  
Hollow Core

scholarly journals Fibrous Reinforcing System to Increase the Shear Resistance of High Strength Concrete

2008 ◽  
Vol 587-588 ◽  
pp. 887-891
Author(s):  
Simão Santos ◽  
Joaquim Barros ◽  
Lúcio Lourenço
Keyword(s):  
High Strength Concrete ◽  
High Strength ◽  
Shear Resistance ◽  
Shear Loading ◽  
Fiber Reinforced Concrete ◽  
Steel Fibers ◽  
Experimental Program ◽  
Compression Tests ◽  
Strength Concrete ◽  
High Strength Fiber

The available research has evidenced that discrete steel fibers can increase significantly the shear resistance of High Strength Concrete (HSC) structural elements when High Strength Fiber Reinforced Concrete (HSFRC) is designed in such way that fiber reinforcing mechanisms are optimized. In general, the increase of the concrete compressive strength is associated to an increase of its compactness, resulting benefits in terms of durability, but a strong concern emerges related to the integrity of this material, since it fails in a too brittle mode when submitted to high temperatures. To contribute for the knowledge about the benefits provided by discrete steel fibers when added to HSC applied to laminar structures, an experimental program composed of slab strips submitted to shear loading configuration was carried out. Uniaxial compression tests with cylinders of 150 mm diameter and 300 mm height, and bending tests with 600×150×150 mm3 beams were executed to assess the compression and bending behavior of the developed HSFRC. To evaluate the influence of the percentage of fibers in the shear resistance of laminar structures, three point loading tests with slab strips of 800×170×150 mm3 dimensions were performed. Taking the obtained experimental results, the applicability of the formulation proposed by RILEM TC 162-TDF was evaluated. Test results showed that, even with relative low dosages of steel fibers, the increment in shear resistance was significantly increased. The main obtained results in the research program are presented and discussed in this paper.

scholarly journals Effect of fiber amount and stirrup ratio on shear resistance of steel fiber reinforced concrete deep beams

2021 ◽  
Vol 15 (2) ◽  
pp. 1-13
Author(s):  
Thang Do-Dai ◽  
Duong T. Tran ◽  
Long Nguyen-Minh
Keyword(s):  
Reinforced Concrete ◽  
Steel Fiber ◽  
Shear Crack ◽  
Shear Resistance ◽  
Shear Capacity ◽  
Fiber Reinforced Concrete ◽  
Steel Fibers ◽  
Experimental Program ◽  
Deep Beam ◽  
Deep Beams

This paper deals with the effect of steel fiber amounts and the interaction between the fiber amount and stirrup ratio on the shear behavior and capacity of reinforced concrete (RC) deep beams with steel fibers. The experimental program was carried out on twelve deep beams with different fiber amounts (0, 30, 40, and 65 kg/m3) and stirrup ratios (0.1, 0.15, and 0.25%). The test results have shown that the use of steel fibers increased the shear resistance (up to 55%), reduced the shear crack width (up to 11 times) and deflection (up to 57%) of the tested deep beams. Also, it was found that using unsuitable steel fiber amount and stirrup ratio would reduce the efficiency of the fibers in a deep beam due to the interaction between the fibers and stirrups. Increasing the stirrup ratio in a deep beam with a high amount of steel fibers can reduce the efficacy of the fibers in enhancing the shear capacity of the beam. The most cost-effective steel fiber amount was found to be around 30 to 45 kg/m3. Keywords: steel fibers; deep beam; shear capacity; fiber amount; stirrup ratio.

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