Characterization of gypsum composites with polypropylene fibers from non-degradable wet wipes

Romero-Gómez, M.I.; Pedreño-Rojas, Manuel Alejandro; Pérez-Gálvez, Filomena; Hita, Paloma Rubio de

doi:10.1016/j.jobe.2020.101874

Cited by 20 publications

(11 citation statements)

References 15 publications

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“…As can be seen in Figure 6 , the new lightened plaster material presents lower flexural strength values than the reference test piece, with the D2 type dosage obtaining better performance compared to the D1 type dosage. It can be seen how the use of reinforcing fibers makes it possible to slightly improve the flexural strength and delay the effect of superficial cracks in accordance with previous studies [ 53 , 54 ]. The batches with the incorporation of basalt fiber were the ones that presented higher resistance values compared to the other reinforcing fibers used.…”

Section: Resultssupporting

confidence: 90%

Characterization of a New Lightened Gypsum-Based Material Reinforced with Fibers

2021

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This paper shows the characterization of a new lightened gypsum-based material for use in buildings. A plaster material has been designed with a polymeric compound based on polyvinyl acetate, bicarbonate and a boric acid solution, which reduce the density and thermal conductivity by up to 20% and 30%, respectively. In addition, tests have been carried out with the lightened plaster material reinforced with glass (GF), basalt (BF), polypropylene (PPF) and wood (WF) fibers. A significant improvement in mechanical properties was achieved. All samples obtained resistance values greater than 2 MPa in flexion and 3 MPa in compression. Physico-chemical analysis were also carried out. The study is completed with a statistical analysis, where confidence intervals have been obtained for the mean at 95% confidence for each of the physical properties studied.

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Section: Resultssupporting

confidence: 90%

Characterization of a New Lightened Gypsum-Based Material Reinforced with Fibers

2021

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“…Therefore, no significant change in unit weight values was observed using fiber. Although it is generally stated in the literature that studies on the use of PP fibers in concrete [29] and gypsum plaster [30] show a slight decrease in unit weight due to the density of the fibers being lower than the matrix, it is thought that the fibers used in this study have a reducing effect on the voids formed in the gypsum matrix. Thus, a slight decrease in unit weights was observed.…”

Section: Resultsmentioning

confidence: 69%

“…This sample gave a 6.4% higher UPV value than the reference sample. In the study where Romero Gómez et al [30] turned waste cloths into PP fiber, it was pointed out that UPV values decreased as the fiber ratio increased. The values ranged approximately between 1850 and 2250 m/s.…”

Section: Resultsmentioning

confidence: 99%

Evaluation of Waste Tag Pins as Fibers in Gypsum Plasters

Hayrullah Sevinç,

Yasin Durgun,

Hale Aygün

2024

Fiber-Reinforced Composites - Recent Advances, New Perspectives and Applications

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This study deals with the usability of tag pins on gypsum-based products, which are used to attach tags on goods such as textile products. The primary motivation of the study is that the tag pins become waste after the sale of the product and this waste is generally produced from polypropylene (PP), which is also used in fiber production. The study used waste tag pins in three different lengths (0.5, 1.0, and 1.5 mm) and at three different fiber volumes such as 5, 10, and 15%. Thus, 40 × 40 × 160 mm sized prismatic gypsum samples were produced and unit weight, ultrasonic pulse velocity (UPV), thermal conductivity, apparent porosity, water absorption, capillary water absorption, compressive and flexural strength of samples were tested. Samples with fiber content exhibited higher flexural strength than the reference sample. The use of longer fibers increased the flexural strength. As a result, the use of tag pins in gypsum matrix generally improved the pore structure and slightly increased the unit weight while enhancing properties such as porosity and water absorption. The same improvement was valid for the mechanical properties. However, the thermal insulation properties of gypsum-based products were adversely affected.

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“…In order to enhance the toughness and strength of construction gypsum, numerous scholars both domestically and internationally have conducted extensive research, discovering that the incorporation of fibers can effectively improve the mechanical and physical properties of composite materials. At present, most researchers have primarily investigated the reinforcing effects of polypropylene fibers [ 11 , 12 , 13 , 14 , 15 , 16 ], glass fibers [ 17 , 18 , 19 , 20 , 21 , 22 ], basalt fibers [ 18 , 23 , 24 , 25 , 26 ], and plant fibers [ 27 , 28 , 29 ] on various types of construction gypsum. PVA fibers, a type of synthetic organic fiber with remarkable properties such as high strength and good toughness, are widely employed in the preparation of ECC materials.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Workability and Mechanical Properties of PVA Fiber-Reinforced Phosphogypsum-Based Composite Materials

Huang

Tao

et al. 2023

Materials

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To address the poor characteristics of low strength and poor toughness in phosphogypsum-based construction material, this study investigates the influence of different diameters, lengths, and dosages of polyvinyl alcohol (abbreviated as PVA) fibers on the workability and mechanical properties of phosphogypsum-based construction material. The results show that as the length and dosage of PVA fibers increase, the flowability of the slurry gradually decreases, and the setting time also shortens. With an increase in the diameter of PVA fibers, the rate of decrease in flowability slows down, and the rate of shortening of setting time also gradually slows down. Moreover, the inclusion of PVA fibers significantly improves the mechanical strength of the specimens. When PVA fibers with a diameter of 15 μm, length of 12 mm, and dosage of 1.6% are used, the phosphogypsum-based construction material reinforced with PVA fibers exhibits optimal performance. Under this mixing ratio, the strength values of the specimens for flexural strength, bending strength, compressive strength, and tensile strength are 10.07 MPa, 10.73 MPa, 13.25 MPa, and 2.89 MPa, respectively. Compared to the control group, the strength enhancements are 273.00%, 164.29%, 15.32%, and 99.31%, respectively. SEM scanning of the microstructure provides a preliminary explanation for the mechanism of how PVA fibers affect the workability and mechanical properties of phosphogypsum-based construction material. The findings of this study can provide a reference for the research and application of fiber-reinforced phosphogypsum-based construction material.

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Characterization of gypsum composites with polypropylene fibers from non-degradable wet wipes

Cited by 20 publications

References 15 publications

Characterization of a New Lightened Gypsum-Based Material Reinforced with Fibers

Characterization of a New Lightened Gypsum-Based Material Reinforced with Fibers

Evaluation of Waste Tag Pins as Fibers in Gypsum Plasters

Investigation of Workability and Mechanical Properties of PVA Fiber-Reinforced Phosphogypsum-Based Composite Materials

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