Mechanical properties of steel fiber-reinforced HPFRCC according to compressive strength

2016 ◽  
pp. 299-304
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Steel Fiber ◽  
Fiber Reinforced

scholarly journals Experimental Study on Basic Mechanical Properties of Steel Fiber-Reinforced Siliceous Wet Shotcrete

2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Xu Yan ◽  
Li-min Liu ◽  
Jin-peng Zhang ◽  
Yan-hui Li ◽  
He Wang
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Evaluation Method ◽  
Steel Fiber ◽  
Resistance Mechanism ◽  
Maximum Growth ◽  
Silica Content ◽  
Shear Capacity ◽  
Strengthening Effect ◽  
Fiber Reinforced

In order to solve the problem of low strength and easy cracking of shotcrete in permanent support of tunnel single shell lining, the effects of steel fiber-reinforced siliceous on mechanical properties of wet shotcrete were investigated by the tests of compressive strength, splitting tensile strength, flexural strength, shear strength, and bending toughness. The strength and the cracking resistance mechanism of steel fiber-reinforced siliceous wet shotcrete were analyzed by the bending toughness evaluation method. The results show that (1) the steel fiber-reinforced siliceous can improve splitting tensile, flexural, and shear capacity of the shotcrete, and the maximum growth rates were 77.42%, 72.73%, and 98.31%. The steel fiber plays a major role, and silica fume plays a subsidiarity role. (2) The effect of different types and contents of steel fibers on the compressive strength of wet shotcrete are not obvious. (3) The strengthening effect of shear undaform steel fiber on concrete is obviously better than that of shear flat steel fiber. (4) The flexural toughness of wet shotcrete with the silica content of 10% and the shear steel fiber of 60 kg/m3 is the best.

Experimental Study on Mechanical Properties of Ultrafine Copper-Plated Steel Fiber Reinforced Cementitious Composite

2014 ◽  
Vol 584-586 ◽  
pp. 1449-1455 ◽  
Author(s):  
Wen Sun ◽  
Yuan Lin Wan
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Compressive Strength ◽  
Steel Fiber ◽  
Research Result ◽  
Silicon Powder ◽  
Strength Increase ◽  
Cementitious Composite ◽  
Fiber Reinforced ◽  
Ultrafine Copper

With ordinary Portland cement, fly ash, silicon powder, admixture and ultrafine copper-plated steel fibers with a diameter of 0.12 mm as raw materials, this paper studies the mechanical properties of ultrafine copper-plated steel fiber reinforced cementitious composite as well as their relationships. 14 groups of cube specimens, prism specimens and tensile test specimens were designed, fabricated and tested to obtain the mechanical properties of ultrafine copper-plated steel fiber reinforced cementitious composite; test specimens’ failure characteristics, contour plots of strains, increasing rules of cube compressive strength, prism compressive strength and tensile strength, as well as relationships among prism compressive strength, tensile strength and cube compressive strength were analyzed and studied at different fiber dosages, and corresponding mathematical models were established; the results indicate that, fiber dosage has the most significant impact on tensile strength increase of cementitious composite; the ratio of prism compressive strength over cube compressive strength is not correlated with fiber dosage; and the ratio of tensile strength to cube compressive strength is a linear function of fiber dosage. The research result is of important reference to design and application of ultrafine copper-plated steel fiber reinforced composite.

Mechanical Properties of Hybrid Nylon-Steel- and Steel-Fibre-Reinforced High Strength Concrete at Low Fibre Volume Fraction

2010 ◽  
Vol 168-170 ◽  
pp. 1704-1707 ◽  
Author(s):  
Ming Kun Yew ◽  
Othman Ismail
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Reinforced Concrete ◽  
High Strength Concrete ◽  
Steel Fiber ◽  
Volume Fraction ◽  
High Strength ◽  
Fiber Reinforced Concrete ◽  
Fiber Reinforced ◽  
Steel Fiber Reinforced Concrete

The mechanical properties of hybrid nylon-steel-fiber-reinforced concrete were investigated in comparison to that of the steel-fiber-reinforced concrete, at the same volume fraction (0.5%). The combining of fibers, often called hybridization is investigated in this paper for a very high strength concrete of an average compressive strength of 105 MPa. Test results showed that fibers when used in a hybrid nylon-steel fibers reinforced concrete form could result in superior composite performance compared to steel-fiber-reinforced concrete. The basic property of the hybridized material that was evaluated and analyzed extensively was the modulus of rupture (MOR) and splitting tensile while the compressive strength was only slightly decreased compared to single steel fiber reinforced concrete. There is a synergy effect in the hybrid fibers system.

scholarly journals Effect of Steel Fiber on Properties of High Performance No-Fine Concrete

2018 ◽  
Vol 7 (4.37) ◽  
pp. 30
Author(s):  
Nada M. F. Alwaan ◽  
. . ◽  
. .
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Flexural Strength ◽  
High Performance ◽  
Steel Fiber ◽  
Light Weight ◽  
Curing Time ◽  
Fiber Reinforced ◽  
Light Weight Concrete ◽  
Cellular Concrete

No-fine concrete (NFC) is cellular concrete and it’s light weight concrete produced with the exclusion of sand from the concrete. This study includes the mechanical properties of lightweight reinforced by steel fiber, containing different proportions of steel fiber. This study was done using number of tests. These tests were density, compressive strength, flexural strength and absorption. These tests of the molds at different curing time. The results of tests that implication of fiber to No. fine concrete did not affect significantly on the compressive strength, While the flexural strength were gets better. Results explained that, the flexural strength of (1%) fiber No- fine concrete molds are four times that of the reference molds in age 28 days. The growing in flexural strength for fiber reinforced mixes with fiber by vol. (0.5%, 0.75%, 1%) were (78%, 132%, 286%) respectively at age of 28 days. 

Experimental Study on Mechanical Properties of Steel Fiber Reinforced High Performance Concrete

2013 ◽  
Vol 859 ◽  
pp. 56-59 ◽  
Author(s):  
Yong Qiang Ma
Keyword(s):  
Mechanical Properties ◽  
Mechanical Property ◽  
Compressive Strength ◽  
Elastic Modulus ◽  
Flexural Strength ◽  
High Performance ◽  
Steel Fiber ◽  
High Performance Concrete ◽  
Steel Fibers ◽  
Fiber Reinforced

A large number of experiments have been carried out in this study to reveal the effect of the steel fiber dosage on the mechanical properties of HPC (high performance concrete). The mechanical property includes compressive strength, elastic modulus and flexural strength. The results indicate that the addition of steel fiber increase the compressive strength, elastic modulus and flexural strength of HPC. When the steel fiber dosage is less than 2%, these mechanical property parameters are increasing gradually with the increase of steel fiber dosage, while these parameters begin to decrease when the steel fiber dosage is more than 2%. With the development of HPC, the application of steel fibers in HPC becomes more and more popular. In the actual construction of steel fiber reinforced HPC, the dosage of steel fiber should be controlled strictly in order to ensure that the steel fibers can perform their best improvement on high performance concrete.

Mechanical properties of steel fiber reinforced concrete material in construction of road bridge deck

2021 ◽  
Vol 16 (4) ◽  
pp. 169-176
Author(s):  
Xiaohu Luo
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Reinforced Concrete ◽  
Flexural Strength ◽  
Steel Fiber ◽  
Fiber Content ◽  
Fiber Reinforced Concrete ◽  
Fiber Reinforced ◽  
Steel Fiber Reinforced Concrete ◽  
Bridge Construction

In order to improve the application effect of steel fiber reinforced concrete (SFRC) in road bridge construction, the mechanical properties of SFRC with different fiber content were analyzed. The SFRC specimens with 0%, 0.5%, 1%, 1.5% and 2% fiber content were designed, and the mechanical properties were tested. The results showed that the compressive strength first increased and then decreased with the increase of fiber content, and the maximum compressive strength of SFRC1.5 reached 40.86 MPa, increasing by 7.19%; the increase amplitude of tensile strength of SFRC1.5 was 73.04%, which was the most obvious; the flexural strength of SFRC increased with the increase of fiber content, and the flexural strength of SFRC2 was 9.78 MPa, increasing by 94.43%. It is concluded from the experimental results of a case study that SFRC1.5 presents the optimal overall mechanical properties and is more suitable for road bridge construction.

Effect of combined drink cans and steel fibers on the impact resistance and mechanical properties of concrete

2020 ◽  
Vol 14 (2) ◽  
pp. 6734-6742
Author(s):  
A. Syamsir ◽  
S. M. Mubin ◽  
N. M. Nor ◽  
V. Anggraini ◽  
S. Nagappan ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Compressive Strength ◽  
Reinforced Concrete ◽  
Impact Resistance ◽  
Fiber Reinforced Concrete ◽  
Steel Fibers ◽  
Fiber Reinforced ◽  
Indirect Tensile ◽  
The Impact

This study investigated the combine effect of 0.2 % drink cans and steel fibers with volume fractions of 0%, 0.5%, 1%, 1.5%, 2%, 2.5% and 3% to the mechanical properties and impact resistance of concrete. Hooked-end steel fiber with 30 mm and 0.75 mm length and diameter, respectively was selected for this study.  The drinks cans fiber were twisted manually in order to increase friction between fiber and concrete. The results of the experiment showed that the combination of steel fibers and drink cans fibers improved the strength performance of concrete, especially the compressive strength, flexural strength and indirect tensile strength. The results of the experiment showed that the combination of steel fibers and drink cans fibers improved the compressive strength, flexural strength and indirect tensile strength by 2.3, 7, and 2 times as compare to batch 1, respectively. Moreover, the impact resistance of fiber reinforced concrete has increase by 7 times as compared to non-fiber concretes. Moreover, the impact resistance of fiber reinforced concrete consistently gave better results as compared to non-fiber concretes. The fiber reinforced concrete turned more ductile as the dosage of fibers was increased and ductility started to decrease slightly after optimum fiber dosage was reached. It was found that concrete with combination of 2% steel and 0.2% drink cans fibers showed the highest compressive, split tensile, flexural as well as impact strength.    

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