Effect of alkali-resistant glass fiber and silica fume on mechanical and shrinkage properties of cement-based mortars

Chen, Haiming; Wang, Pengju; Pan, Jin; Lawi, Abubakar.S.; Zhu, Yuntao

doi:10.1016/j.conbuildmat.2021.125054

Cited by 27 publications

(6 citation statements)

References 38 publications

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“…To summarize, the inclusion of GF results in a material that is harder to break, denser, and more impermeable. This result is also in line with the findings of Chen et al in [ 96 ]. They also discovered that SF improved the performance of glass fiber-reinforced mortars by protecting the fibers from ageing caused by alkali environment degradation.…”

Section: Scanning Electron Microscopysupporting

confidence: 93%

Glass Fibers Reinforced Concrete: Overview on Mechanical, Durability and Microstructure Analysis

et al. 2022

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Prior studies in the literature show promising results regarding the improvements in strength and durability of concrete upon incorporation of glass fibers into concrete formulations. However, the knowledge regarding glass fiber usage in concrete is scattered. Moreover, this makes it challenging to understand the behavior of glass fiber-reinforced concrete. Therefore, a detailed review is required on glass fiber-reinforced concrete. This paper provides a compressive analysis of glass fiber-reinforced composites. All-important properties of concrete such as flowability, compressive, flexural, tensile strength and modulus of elasticity were presented in this review article. Furthermore, durability aspects such as chloride ion penetration, water absorption, ultrasonic pulse velocity (UPV) and acid resistance were also considered. Finally, the bond strength of the fiber and cement paste was examined via scanning electron microscopy. Results indicate that glass fibers improved concrete’s strength and durability but decreased the concrete’s flowability. Higher glass fiber doses slightly decreased the mechanical performance of concrete due to lack of workability. The typical optimum dose is recommended at 2.0%. However, a higher dose of plasticizer was recommended for a higher dose of glass fiber (beyond 2.0%). The review also identifies research gaps that should be addressed in future studies.

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Section: Scanning Electron Microscopysupporting

confidence: 93%

Glass Fibers Reinforced Concrete: Overview on Mechanical, Durability and Microstructure Analysis

et al. 2022

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“…The modulus of rupture for mixtures M1, M2, and M3 including only GF increased by 8.3%, 13.3%, and 3.33%, respectively with respect to the reference mix at 56 days of curing. Previous research agrees with this finding [17,22,27]. The modulus of rupture for mixtures M6, M10, and M14 containing 0.8%GF and GP with a ratio of (10%, 20%, and 30%) increased by 15%, 16.7%, and 20%, respectively with respect reference mix at 56 days of curing.…”

Section: The Modulus Of Rupturesupporting

confidence: 77%

“…There was an increment of dry unit weight for mixtures M1, M2, and M3 by 0.2%, 0.5%, and 1.02%, respectively compared to that of NC. A lot of researchers agree with this explanation [17,27].…”

Section: The Dry Unit Weightmentioning

confidence: 92%

Improving Sustainability of Concrete Using Waste Glass Powder

Ahmed

2024

Fayoum University Journal of Engineering

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Waste glass (WG) must be recycled to produce sustainable concrete and conserve natural resources. This paper aims to study the combined influence of glass powder (GP) and glass fiber (GF) on the behavior of concrete. GP was utilized as a partial replacement of fine aggregate by (10%, 20%, and 30%) of weight. GF was added with different ratios (0, 0.4%, 0.8%, and 1.2%) of concrete volume to improve the ductility of the concrete. Many tests were performed for hardened concrete such as compressive strength, modulus of rupture, indirect tensile strength, water absorption, and dry unit weight. A slump test was performed to assess the workability of fresh concrete. The influence of GP and GF on the concrete microstructure using scanning electron microscopy (SEM) was studied. The results indicated that the mixture containing 0.8%GF, and 30%GP achieved the optimum value of compressive strength, modulus of rupture, and indirect tensile strength by 19.5%, 20%, and 22.3% with respect to the reference mix at 56 days of curing. The compressive strength of mixtures M6, M10, and M14 including 0.8%GF and GP with a ratio of 10%, 20%, and 30%, increased by 15.7%, 19%, and 19.5%, respectively at 56 days with respect to the control mix. The higher the percentage of GF, the lower the slump value. The water absorption rate of mixtures reduced as the percentage of GP increased with respect to that of the control mix. Micrographs of SEM showed the formation of crystals of calcium silicate hydrate in the concrete mixtures containing GP, this is evidence of the pozzolanic activity of the GP.

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“…In the study of fiber-reinforced cementitious composites, steel fiber [ 27 , 28 , 29 ], basalt fiber [ 30 , 31 ], glass fiber [ 32 , 33 ], and polypropylene fiber [ 34 , 35 ] are often mentioned. However, steel fiber is easily agglomerated during the mixing process, and it is heavy and easy to corrode, which will incur significant cost and affect all aspects of the performance of the matrix material [ 36 ].…”

Section: Introductionmentioning

confidence: 99%

Study on the Properties of Multi-Walled Carbon Nanotubes (MWCNTs)/Polypropylene Fiber (PP Fiber) Cement-Based Materials

Niu,

Chen,

et al. 2023

Polymers

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In order to improve the mechanical properties and durability of cement-based materials, a certain amount of multi-walled carbon nanotubes (MWCNTs) and polypropylene fiber (PP fiber) were incorporated into cement-based materials. The mechanical properties of the multi-walled carbon nanotubes/polypropylene fiber cement-based materials were evaluated using flexural strength tests, compressive strength tests, and splitting tensile tests. The effects of multi-walled carbon nanotubes and polypropylene fiber on the durability of cement-based materials were studied using drying shrinkage tests and freeze–thaw cycle tests. The effects of the multi-walled carbon nanotubes and polypropylene fibers on the microstructure and pore structure of the cement-based materials were compared and analyzed using scanning electron microscopy and mercury intrusion tests. The results showed that the mechanical properties and durability of cement-based materials can be significantly improved when the content of multi-walled carbon nanotubes is 0.1–0.15%. The compressive strength can be increased by 9.5% and the mass loss rate is reduced by 27.9%. Polypropylene fiber has little effect on the compressive strength of the cement-based materials, but it significantly enhances the toughness of the cement-based materials. When its content is 0.2–0.3%, it has the best effect on improving the mechanical properties and durability of the cement-based materials. The flexural strength is increased by 19.1%, and the dry shrinkage rate and water loss rate are reduced by 14.3% and 16.1%, respectively. The three-dimensional network structure formed by the polypropylene fiber in the composite material plays a role in toughening and cracking resistance, but it has a certain negative impact on the pore structure of the composite material. The incorporation of multi-walled carbon nanotubes can improve the bonding performance of the polypropylene fiber and cement matrix, make up for the internal defects caused by the polypropylene fiber, and reduce the number of harmful holes and multiple harmful holes so that the cement-based composite material not only has a significant increase in toughness but also has a denser internal structure.

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Effect of alkali-resistant glass fiber and silica fume on mechanical and shrinkage properties of cement-based mortars

Cited by 27 publications

References 38 publications

Glass Fibers Reinforced Concrete: Overview on Mechanical, Durability and Microstructure Analysis

Glass Fibers Reinforced Concrete: Overview on Mechanical, Durability and Microstructure Analysis

Improving Sustainability of Concrete Using Waste Glass Powder

Study on the Properties of Multi-Walled Carbon Nanotubes (MWCNTs)/Polypropylene Fiber (PP Fiber) Cement-Based Materials

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