Mechanical characteristics of experimental multi-scale steel fiber reinforced polymer concrete and optimization by Taguchi methods

Esmaeili, Jamshid; Andalibi, Keyvan; Gençel, Osman

doi:10.1016/j.conbuildmat.2021.125500

Cited by 25 publications

(5 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At the age of 3 days, the different types of carbon materials (ex cept CF) exhibited similar tensile strengths. The compressive strengths of the MF and GP specimens were 77% and 45% of that of the CNT specimen, respectively, with negligibl differences in their tensile strengths; this could be attributed to the predominant influenc of steel fibers on the tensile performance of concrete [42]. At the age of 28 days, the speci men with graphite exhibited the lowest tensile strength.…”

Section: Tensile Strengthmentioning

confidence: 90%

Electrical Characteristics of Ultra-High-Performance Concrete Containing Carbon-Based Materials

et al. 2022

View full text Add to dashboard Cite

Recently, carbon materials with unique properties, such as high tensile strength and electrical conductivity, have been extensively investigated for the multi-functionalization of concrete. Previous studies mainly focused on improving the performance of normal-strength concrete using carbon nanomaterials, such as carbon nanotubes and graphene nanoplates. Therefore, this study analyzed the effect of carbon materials on ultra-high-performance concrete (UHPC) mixed with steel fibers, which has an outstanding mechanical performance. In addition, length effects were investigated for carbon fibers with nanometer, micrometer, and millimeter sizes. The influences of carbon materials on 120 MPa UHPC were investigated, including expanded graphite, a well-known superior conductivity material. Electrical conductivity, compressive strength, tensile strength, and electrical conductivity were analyzed experimentally. As a result, compressive strength tends to decrease as the concentrations of carbon materials increase, and chopped fiber has the best performance at 10.5 MPa in terms of tensile strength. Since the electrical conductivity of chopped fiber was observed to be significantly higher than that of other materials at 6.6 times, millimeter-sized fiber would be most suitable as a carbon material for concrete. This study could guide future research on the multi-functionalization of UHPC with carbon-based materials, including mechanical and electrical conductivity performances.

show abstract

Section: Tensile Strengthmentioning

confidence: 90%

Electrical Characteristics of Ultra-High-Performance Concrete Containing Carbon-Based Materials

et al. 2022

View full text Add to dashboard Cite

show abstract

“…The force-displacement curve was derived and used to evaluate the accuracy of the In the finite element analysis, the created samples were loaded according to the laboratory conditions. In the tensile test samples, one side of the sample was fully constrained, and displacement was applied to the other side at a rate of 0.2 mm/min [21][22][23]. Ten-node tetrahedral pyramidal elements with second-order shape functions (C3D10M) were used to divide the geometry into finite elements.…”

Section: Experimental Testmentioning

confidence: 99%

Modi̇fi̇ye Edi̇lmiş Metal Auxetic Yapinin Mekani̇k Davranişinin Deneysel Ve Sayisal Olarak İncelenmesi̇

Ozkan

Malekı

2023

Kırklareli Üniversitesi Mühendislik Ve Fen Bilimleri Dergisi

View full text Add to dashboard Cite

Humans have always sought the optimal use of materials around them and, in this field, inspired by nature, have succeeded in inventing various structures. As one example, lattice structures, which are lightweight, strong, and stiff, are used widely in various applications, including energy absorbers. Lattice structures with a negative Poisson's ratio have been developed as a new type of lattice structure. As a result of this feature, auxetic structures have unique properties like shear strength, penetration resistance, fracture toughness, crack resistance, and high energy absorbability. In this paper, the mechanical behavior of the auxetic panels made using the 3D metal printer method is investigated by experimental tests and finite element methods. Experiments are used to verify the accuracy of the numerical model. Using the DMLS method, samples were prepared from metal-based AlS10Mg Aluminum composition. The 3D printing method was used to fabricate samples. Afterwards, experimental tests were made and the mechanical properties of these materials were determined by tensile test and used in finite element simulations. Following the confirmation of the model's accuracy, the finite element simulation results are used to perform a parametric study and determine the appropriate geometry. The numerical analysis is conducted using ABAQUS software, which uses the nonlinear finite element method.

show abstract

“…If the toughness of concrete is to be enhanced comprehensively, the use of multi-scale toughness materials needs to be considered. For instance, some scholars [ 9 , 10 , 11 ] have studied hybrid fibers incorporated into concrete for strengthening and toughening, and some other scholars [ 12 , 13 ] have considered mixing fibers and polymer latex powders into concrete for performance improvement. There have also been investigations into using a hybrid of fibers and rubber particles in concrete [ 14 , 15 ] to enhance the mechanical properties and durability.…”

Section: Introductionmentioning

confidence: 99%

The Mechanical Characteristics of High-Strength Self-Compacting Concrete with Toughening Materials Based on Digital Image Correlation Technology

et al. 2023

View full text Add to dashboard Cite

Brittle fracture is a typical mechanical characteristic of high-strength self-compacting concrete, and the research on its toughening modification remains the highlight in the engineering field. To understand the effect of toughening materials (including polymer latex powders, rubber particles, and polyethylene fibers) on the mechanical behavior of C80 high-strength self-compacting concrete under static loading, the failure mode, mechanical strength, strain field, and crack opening displacement (COD) of prepared high-strength self-compacting concrete under compressive, splitting, and flexural loads were studied based on digital image technology (DIC). The corresponding mechanism is also discussed. The results show that the hybrid of polymer latex powders, rubber particles, and polyethylene fibers can increase the crack path and inhibit the development of macrocracks in concrete, thus turning the fracture behavior of concrete from brittle to ductile. The addition of toughening materials reduced the compressive and flexural strengths of high-strength self-compacting concrete, but it increased the splitting strength. DIC showed that the incorporation of toughening materials promoted the redistribution of strain and reduced the degree of strain concentration in high-strength self-compacting concrete. The evolution of COD in high-strength self-compacting concrete can be divided into two stages, including the linear growth stage and the plastic yield stage. The linear growth stage can be extended by incorporating toughening materials. The COD and energy absorption capacity of concrete were enhanced with the addition of toughening materials, and the best enhancement was observed with the hybrid of polymer latex powders, rubber particles, and polyethylene fibers. Overall, this research provides a reference for exploring effective technical measures to improve the toughness of high-strength self-compacting concrete.

show abstract

Mechanical characteristics of experimental multi-scale steel fiber reinforced polymer concrete and optimization by Taguchi methods

Cited by 25 publications

References 43 publications

Electrical Characteristics of Ultra-High-Performance Concrete Containing Carbon-Based Materials

Electrical Characteristics of Ultra-High-Performance Concrete Containing Carbon-Based Materials

Modi̇fi̇ye Edi̇lmiş Metal Auxetic Yapinin Mekani̇k Davranişinin Deneysel Ve Sayisal Olarak İncelenmesi̇

The Mechanical Characteristics of High-Strength Self-Compacting Concrete with Toughening Materials Based on Digital Image Correlation Technology

Contact Info

Product

Resources

About