Study of the durability of concrete mixed with polypropylene fibers

Suiffi, Hassan; Maliki, Anas El; Cherkaoui, Omar; Dalal, Mohamed

doi:10.1016/j.prostr.2021.10.028

Cited by 9 publications

(2 citation statements)

References 5 publications

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“…The splitting strength and flexural strength of concrete were increased by 12.01% and 17.15%, respectively [ 33 ]. Additionally, 0.1–0.3% PF can reduce the plastic shrinkage of concrete by 12–25%, and the tension–compression ratio can be increased by 46% [ 34 , 35 , 36 ].…”

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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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 addition, the splitting tensile strength and flexural strength of concrete after 7 d and 28 d can be increased, and the tensile-compressive ratio at 28 d can be increased by 46%. Obviously, polypropylene fibers can significantly improve the performance of concrete [6][7][8] .…”

Section: Introductionmentioning

confidence: 99%

Experimental study on the axial tensile properties of polypropylene fiber reinforced concrete

Zhang

Yin

Chen

et al. 2023

Preprint

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In order to study the axial tensile properties of polypropylene fiber reinforced concrete, an axial tensile test device for concrete is developed in this paper. The device is composed of three parts: rigid frame, spherical hinge and puller, and specimen fabrication part. The test device can accurately measure the tensile strength and peak tensile strain of concrete, and perfectly solves the eccentricity problem of concrete specimens under tension. It can measure the post peak segment tensile strain, such that the whole process tensile stress-strain curve can be obtained. The axial tensile test of polypropylene fiber concrete was carried out using the above test device, and the results show that the tensile strength of concrete can be clearly improved by adding polypropylene fiber, which makes the tensile failure of concrete show certain plastic characteristics. The effects of polypropylene fiber content and curing age on the tensile properties of concrete were studied and the optimum polypropylene fiber content was determined. The splitting tensile test of concrete under the same condition was carried out simultaneously. The damage phenomenon and test results of the axial tensile test and splitting tensile test of concrete were compared and analyzed, and the applicability of the new developed device in the concrete axial tensile test was verified.

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Effect of exposure temperatures on chloride penetration resistance of concrete incorporating polypropylene Fibers, silica fume and metakaolin

Al-Sodani

2022

Construction and Building Materials

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Study of the durability of concrete mixed with polypropylene fibers

Cited by 9 publications

References 5 publications

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

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

Experimental study on the axial tensile properties of polypropylene fiber reinforced concrete

Effect of exposure temperatures on chloride penetration resistance of concrete incorporating polypropylene Fibers, silica fume and metakaolin

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