On the fracture behaviour of fibre-reinforced gypsum using micro and macro polymer fibres

Guerra, Fernando Suárez; Felipe-Sesé, Luis; Díaz, Francisco; Gálvez, Jaime C.

doi:10.1016/j.conbuildmat.2020.118347

Cited by 28 publications

(18 citation statements)

References 20 publications

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“…Polypropylene, glass, aramid or carbon fibers have been studied, of which the last two are rarely used for the reinforcement of plaster materials due to their high cost [ 26 ]. Suarez et al [ 27 ] have carried out studies with the addition of macro- and micropolymeric fibers of different lengths, showing that there is an optimal length for each type of fiber by which the workability of the material is reduced in the fresh state. The addition of macropolymeric fibers gives rise to materials with better mechanical resistance.…”

Section: Introductionmentioning

confidence: 99%

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: Introductionmentioning

confidence: 99%

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

2021

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“…Furthermore, research suggests that industrial byproducts such as phosphogypsum, calcium salts, sulfur salts, converter slag, tin tailings, and rare-earth tailings can be utilized in the preparation of CSWs. This approach contributes to environmental protection and fosters sustainable development [ 6 ]. Therefore, CSWs are considered a nontoxic, environmentally friendly, and cost-effective inorganic material with excellent reinforcing and toughening capabilities [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

Application of Calcium Sulfate Whiskers to Cement-Based Materials: A Review

Liu,

Liao,

Sha

et al. 2024

Materials

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In recent years, significant attention has been paid to the use of calcium sulfate whiskers (CSWs) to enhance the performance of cement-based materials (CBM). This technology has attracted widespread interest from researchers because it enhances the performance and sustainability of CBM by modifying the crystal structure of calcium sulfate. This article summarizes the fundamental properties and preparation methods of calcium sulfate whisker materials as well as their applications in cement, potential advantages and disadvantages, and practical applications and prospects. The introduction of CSWs has been demonstrated to enhance the strength, durability, and crack resistance of CBM while also addressing concerns related to permeability and shrinkage. The application of this technology is expected to improve the quality and lifespan of buildings, reduce maintenance costs, and positively impact the environment. The use of CSWs in CBM represents a promising material innovation that offers lasting and sustainable advancement in the construction industry.

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“…[7][8] Some efforts have already been taken in the field of gypsum-based composites. [9][10][11][12][13][14] Singh and Garg 9 studied the influence of glass fiber incorporation on the strength of GS. The test results indicated that tensile, flexural, and impact strength are improved with the increasing fiber content and length.…”

Section: Introductionmentioning

confidence: 99%

“…Using short chopped fibers as reinforcement is proved to be one of the most effective methods to improve the mechanical property of inorganic materials 7‐8 . Some efforts have already been taken in the field of gypsum‐based composites 9‐14 . Singh and Garg 9 studied the influence of glass fiber incorporation on the strength of GS.…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, the addition of PVA fibers could remarkably shorten the setting time and accelerate the hydration process, but significantly reduce the workability of fresh gypsum‐based composites. Additionally, other types of fibers including cotton stalk fiber, 11 polyolefin fiber, 12 hemp fiber 13 and recycled cellulose pulp 14 were also added into the gypsum matrix as reinforcement. The efforts above effectively enhance the strength and toughness of gypsum‐based composites, but none of the composites exhibits tensile strain‐hardening characteristics.…”

Section: Introductionmentioning

confidence: 99%

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Development of gypsum‐based composites with tensile strain‐hardening characteristics

Wang

Jian

et al. 2020

J Am Ceram Soc

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Brittle nature of gypsum restrains its wide application in construction industry. For improvement, a novel type of composite material, gypsum-based engineered cementitious composites (GS-ECC), was developed using specially chosen polyethylene (PE) fibers. This study investigated the rheological and mechanical properties of GS-ECC, that is, workability, uniaxial tensile and compressive behavior, flexural strength, etc The investigation showed that GS-ECC possessed excellent tensile strain-hardening behavior and saturated cracking characteristics with the average tensile strain capacity more than 5%. To explore the underlying mechanism, the microstructure of interface transition zone (ITZ) between gypsum crystals and PE fibers were investigated through the use of SEM. Single fiber pull-out test, bending-fracture test, and single crack tension test were conducted to investigate the mesoscopic properties from fiber/matrix interface to matrix toughness and fiber bridging capacity. This study demonstrates the feasibility of achieving strain-hardening gypsum-based composites by adding the PE fibers. K E Y W O R D S fiber-matrix interface, gypsum, polyethylene fiber, strain hardening gypsum composite, ultra-high ductility How to cite this article: Wang Y, Jian X, Yu J, Ye J, Dong F. Development of gypsum-based composites with tensile strain-hardening characteristics.

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On the fracture behaviour of fibre-reinforced gypsum using micro and macro polymer fibres

Cited by 28 publications

References 20 publications

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

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

Application of Calcium Sulfate Whiskers to Cement-Based Materials: A Review

Development of gypsum‐based composites with tensile strain‐hardening characteristics

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