Experimental and Theoretical Analysis of Auxetic Cementitious Composite: A Comparative Study with Recycled and Virgin Steel Fibers

Journal of Building Engineering, Год журнала: 2025, Номер unknown, С. 111822 - 111822

Опубликована: Янв. 1, 2025

Язык: Английский

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Mechanical properties of steel fiber-reinforced rubber concrete after elevated temperature

Scientific Reports, Год журнала: 2025, Номер 15(1)

Опубликована: Фев. 26, 2025

The frequency of engineering fires is increasing, and the study residual mechanical properties steel fiber-reinforced rubber concrete (SFRRC) after high temperatures essential for evaluating its load-bearing capacity fire. This examines SFRRC being subjected to elevated temperatures, considering impacts varying fiber amounts (Vsf =0.6, 1.2%) different substitution ratio (rg=0, 5, 10, 15%) on specimens (20, 200, 400, 600, 800 °C). All were tested in cubic axial compression, split tensile four-point flexure tests. findings indicated that fibers enhance durability safety by reducing risk cracking at inhibiting crack extension. When 1.2% 5% particles added, exposure improved compared normal concrete, with cube compressive strength, uniaxial splitting flexural strength increased 0.23–8.48%, 1.13–4.16%, 22.92–44.23%, 3.03–19.81%, respectively. In this study, mechanism temperature action was analyzed. On basis experimental data, prediction models proposed. data previous research results. results will help promote formulation specifications related fields practical application as a novel material.

Язык: Английский

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The use of high-volume hybrid steel fiber instead of compression rebar to improve the structural performance of high-strength SCC beams under bending

Construction and Building Materials, Год журнала: 2025, Номер 470, С. 140521 - 140521

Опубликована: Фев. 26, 2025

Язык: Английский

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Influence of aluminum enrichment zone on chloride ion penetration resistance in rubber cement-based materials

Construction and Building Materials, Год журнала: 2025, Номер 471, С. 140619 - 140619

Опубликована: Март 7, 2025

Язык: Английский

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Triaxial constitutive modelling and failure criteria of rubberised concrete materials

Journal of Building Engineering, Год журнала: 2025, Номер unknown, С. 112460 - 112460

Опубликована: Март 1, 2025

Язык: Английский

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Flexural properties and damage evolution laws of scrap tire steel fiber-reinforced constructional backfill body

Journal of Building Engineering, Год журнала: 2025, Номер unknown, С. 112700 - 112700

Опубликована: Апрель 1, 2025

Язык: Английский

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Comparative study on the properties of basalt and steel fiber reinforcement waste rock concrete

Research Square (Research Square), Год журнала: 2025, Номер unknown

Опубликована: Апрель 17, 2025

This study aims to convert waste rock into sustainable building materials by using it as coarse and fine aggregates prepare basalt fiber steel fiber-reinforced concrete (BFRC SFRC). The optimal dosages reinforcement mechanism of fibers were determined through mechanical performance tests, P-wave velocity slump SEM analysis. Experimental research shows that incorporating an appropriate amount can improve the concrete, all BFRC SFRC specimens meet strength requirements. achieves best strengths with 40 kg/m³ 2 fiber. Compared control specimens, greatly improves tensile 22.2% flexural 27.4%, increases them 20.2% 17.4%, respectively. Although exhibit higher strengths, production cost CO₂ emissions are significantly higher, 2.46 times 1.21 than BFRC. analysis revealed incorporation dosage resulted in a denser microstructure within matrix. Basalt high elastic modulus provide significant bridging effects crack resistance. uniform distribution forms dense network structure, limiting generation propagation microcracks, thereby improving properties. Overall, addition may be more favorable choice. Besides, this provides theoretical basis for resource utilization contributes promoting application engineering.

Язык: Английский

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Comparative study on the properties of basalt and steel fiber reinforcement waste rock concrete

Scientific Reports, Год журнала: 2025, Номер 15(1)

Опубликована: Апрель 29, 2025

This study aims to convert waste rock into sustainable building materials by using it as coarse and fine aggregates prepare basalt fiber steel fiber-reinforced concrete (BFRC SFRC). The optimal dosages reinforcement mechanism of fibers were determined through mechanical performance tests, P-wave velocity slump SEM analysis. Experimental research shows that incorporating an appropriate amount can improve the concrete, all BFRC SFRC specimens meet strength requirements. achieves best strengths with 40 kg/m3 2 fiber. Compared control specimens, greatly improves tensile 22.2% flexural 27.4%, increases them 20.2% 17.4%, respectively. Although exhibit higher strengths, production cost CO2 emissions are significantly higher, 2.46 times 1.21 than BFRC. analysis revealed incorporation dosage resulted in a denser microstructure within matrix. Basalt high elastic modulus provide significant bridging effects crack resistance. uniform distribution forms dense network structure, limiting generation propagation microcracks, thereby improving properties. Overall, addition may be more favorable choice. Besides, this provides theoretical basis for resource utilization contributes promoting application engineering.

Язык: Английский

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Experimental investigation on the frost resistance of RCC layers with various interface treatments

Construction and Building Materials, Год журнала: 2024, Номер 449, С. 138564 - 138564

Опубликована: Окт. 1, 2024

Язык: Английский

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