Mechanical Properties of Desert-Sand-Based Steel-PVA Hybrid Fiber Reinforced Engineered Cementitious Composites (H-DSECC)

Che, Jialing; Guo, Ziwei; Li, Quanwei; Liu, Haifeng

doi:10.1007/s12205-022-1746-1

Cited by 5 publications

(2 citation statements)

References 45 publications

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“…Nevertheless, this problem can be resolved by including steel fiber in the concrete mixture. Incorporating steel fibers into the concrete matrix enhances cementitious materials' strength properties and prevents crack propagation [2,3].…”

Section: Introductionmentioning

confidence: 99%

Experimental study on the strength properties of concrete modified with silica fume and steel fiber

Ahmadi,

Lallotra

2024

E3S Web Conf.

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Concrete is a widely used building material. It has excellent compressive strength but is brittle and relatively weak in tension. This experimental study aims to develop ductile and high-strength concrete by incorporating silica fume and steel fibers. Two types of steel fibers with aspect ratios of 52 and 72 were employed at varying percentages (0.44%, 0.88%, and 1.76% by mass of cement content). Additionally, 8.5% silica fume by cement mass was added to the concrete mixture. A water-to-cement (W/C) ratio of 0.42 and a slump of 100 mm are maintained. Substituting cement with silica fume improves the concrete's mechanical properties and elastic modulus. Moreover, adding steel fibers enhanced flexural and tensile strength. Increasing the percentage of silica fume and steel fibers correlated with higher compressive strength, while the aspect ratio of steel fibers has an inverse effect on compressive strength, with lower aspect ratios exhibiting a higher compressive strength. Furthermore, as the percentage of silica fume and steel fibers increases, the splitting tensile and flexural strength also improve, with the aspect ratio directly influencing these strengths, higher aspect ratios resulting in superior tensile and flexural strength. Ultimately, this investigation demonstrates that the strength properties of concrete rely on the content of silica fume, steel fibers, and the aspect ratio of the steel fibers.

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Section: Introductionmentioning

confidence: 99%

Experimental study on the strength properties of concrete modified with silica fume and steel fiber

Ahmadi,

Lallotra

2024

E3S Web Conf.

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“…Some researchers experimentally found that mixing steel fibers could substantially enhance the compressive strength and splitting tensile strength of DSC, and the enhancement of the latter strength was relatively obvious [ 42 , 43 , 44 ]. Steel fibers account for the most commonly used option in the current literature, yet they have the disadvantages of self-weighting and easy corrosion [ 45 ]. Additionally, existing research mainly focuses on single-fiber-doped DSC; investigation into HyRDSC is still a research gap; mixed PF and GF reinforced DSC especially have not been reported.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties and Microstructure of Polypropylene–Glass-Fiber-Reinforced Desert Sand Concrete

Hou,

Wen,

Huang

et al. 2023

Polymers

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In order to improve the performance of desert sand concrete, polypropylene fiber (PF) and glass fiber (GF) were used to prepare desert sand concrete (DSC) with different fiber and volume content, and the basic mechanical properties, such as cube compressive, tensile and flexural strengths, were tested and studied. Based on the mercury injection method (MIP) and scanning electron microscopy (SEM), the evolution of pore structure and interface structure was analyzed. The mechanism of fiber toughening was revealed at the microscopic level. The results show that the slump of DSC decreases with the increase in fiber content. The slump of glass-fiber-reinforced DSC (GFRDSC) is smaller than that of polypropylene-fiber-reinforced DSC (PFRDSC). The strength enhancement of DSC by fibers is in the order of flexural strength > split tensile strength > compressive strength. The flexural strength of hybrid-fiber-reinforced DSC (HyFRDSC) (0.1% PF + 0.1% GF) is increased by 40.7%. Meanwhile, fibers can improve the toughness of DSC. The MIP results show that the porosity of HyFRDSC decreased by 50.01%, and the addition of fiber can effectively refine the large pore size. The SEM results show that the incorporation of PF and GF causes the formation of a uniform and dense structure between the fibers, cement and aggregate. The two can give full play to the crack-resisting and toughening effect in different loading stages, thus improving the macromechanical properties of DSC.

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Effect of Basalt and Steel Fibers on the Microstructure and Strength of Concrete with Desert Sand

Hamada,

Abed,

Al-Sadoon

et al. 2024

Arab J Sci Eng

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Mechanical Properties of Desert-Sand-Based Steel-PVA Hybrid Fiber Reinforced Engineered Cementitious Composites (H-DSECC)

Cited by 5 publications

References 45 publications

Experimental study on the strength properties of concrete modified with silica fume and steel fiber

Experimental study on the strength properties of concrete modified with silica fume and steel fiber

Mechanical Properties and Microstructure of Polypropylene–Glass-Fiber-Reinforced Desert Sand Concrete

Effect of Basalt and Steel Fibers on the Microstructure and Strength of Concrete with Desert Sand

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