Investigation of mechanical properties of red pine needle fiber reinforced self-compacting ultra high performance concrete

Çöğürcü, Mustafa Tolga

doi:10.1016/j.cscm.2022.e00970

Cited by 15 publications

(3 citation statements)

References 55 publications

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“…A large number of experiments found that the addition of polyvinyl alcohol fibers, steel fibers, polypropylene fibers, basalt fibers, etc., to self-compacting concrete can produce a good crack resistance effect, and hybrid fiber concrete is more prone to fracture than single-long-fiber concrete [ 19 , 20 , 21 , 22 ]. However, the impact of global warming is becoming increasingly severe, and the sustainable development of cities has also become a focal issue [ 23 , 24 ]. In order to improve their environmental quality, environment-friendly fibers and natural fibers have gradually developed [ 25 , 26 ].…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties and Crack Resistance of Basalt Fiber Self-Compacting High Strength Concrete: An Experimental Study

et al. 2023

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Pure self-compacting concrete has many disadvantages, such as early shrinkage and cracking. The addition of fibers can effectively improve the properties of resistance to tension and cracking of self-compacting concrete, thereby the effect of improving its strength and toughness can be achieved. Basalt fiber is a “new green industrial material” that has unique advantages, such as high crack resistance and being lightweight compared with other fiber materials. In order to study the mechanical properties and crack resistance of basalt fiber self-compacting high-strength concrete intensively, the self-compacting high-strength concrete of C50 was designed and obtained using the absolute volume method with multiple proportions. Orthogonal experimental methods were used to study the influence of the water binder ratio, fiber volume fraction, fiber length, and fly ash content on the mechanical properties of the basalt fiber self-compacting high-strength concrete. Meanwhile, the efficiency coefficient method was used to determine the best experiment plan (water binder ratio 0.3, fiber volume ratio 0.2%, fiber length 12 mm, fly ash content 30%), and the effect of fiber volume fraction and fiber length on the crack resistance of the self-compacting high-performance concrete was investigated using improved plate confinement experiments. The results show that (1) the water binder ratio had the greatest impact on the compressive strength of basalt fiber self-compacting high-strength concrete, and as the fiber volume fraction increased, the splitting tensile strength and flexural strength both increased; (2) there was an optimal value for the effect of the fiber length on the mechanical properties; (3) with the increase in fiber volume fraction, the total crack area of the fiber self-compacting high-strength concrete significantly decreased. When the fiber length increased, the maximum crack width first decreased and then slowly increased. The best crack resistance effect was achieved when the fiber volume fraction was 0.3% and the fiber length was 12 mm. Therefore, basalt fiber self-compacting high-strength concrete can be widely used in engineering fields, such as national defense construction, transportation, and building structure reinforcement and repair, due to its excellent mechanical and crack resistance properties.

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Section: Introductionmentioning

confidence: 99%

Mechanical Properties and Crack Resistance of Basalt Fiber Self-Compacting High Strength Concrete: An Experimental Study

et al. 2023

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“…Researchers found that adding fiber to concrete mixtures improved the mechanical performance (Flexural and tensile strength, crack resistance, ductility, toughness) of concrete [7]. Basalt, steel, carbon, glass, polypropylene and natural fibers are mostly studied fiber types in the literature [8], [9]. Basalt fiber (BF) is produced from basalt rock with molting in high temperature.…”

Section: Introductionmentioning

confidence: 99%

Effect of Basalt Fiber Aspect Ratio on Mechanical and Workability Properties of Self-Compacting Concrete

UZUN,

ARSLAN

2023

KONJES

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Self-compacting concrete (SCC) has become widely used thanks to its various advantages. SCC is also fiber reinforced, similar to conventional concrete. However, studies on SCC with fiber addition are limited. In this study, the effect of basalt fibers at different aspect ratios on the mechanical and workability properties of SCC was examined. Slump flow, V-funnel, compressive, flexural and splitting tensile strength tests were carried out within this study. Results showed that, although increasing the aspect ratio causes improvement in the workability properties of concrete, workability decreases compared to the reference SCC. Increases were observed in flexural and splitting tensile strengths with increasing aspect ratio. The compressive strength of the specimens that contains BF decreased compared to the reference sample because of the agglomeration effect. The results obtained were examined and discussed in detail.

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“…High-performance concrete has high strength, but it also suffers from early cracking and poor fatigue life [17]. High-performance concrete containing fibers has the advantages of high strength and high mechanical properties [18]. However, the high cost and construction difficulty of high-performance concrete containing fibers limit its wide application [19].…”

Section: Introductionmentioning

confidence: 99%

Strength formation mechanism and performance of steel slag self-compacting epoxy resin concrete

et al. 2022

Construction and Building Materials

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Investigation of mechanical properties of red pine needle fiber reinforced self-compacting ultra high performance concrete

Cited by 15 publications

References 55 publications

Mechanical Properties and Crack Resistance of Basalt Fiber Self-Compacting High Strength Concrete: An Experimental Study

Mechanical Properties and Crack Resistance of Basalt Fiber Self-Compacting High Strength Concrete: An Experimental Study

Effect of Basalt Fiber Aspect Ratio on Mechanical and Workability Properties of Self-Compacting Concrete

Strength formation mechanism and performance of steel slag self-compacting epoxy resin concrete

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