Performance of Environmentally Friendly Concrete Containing Fly-Ash and Waste Face Mask Fibers DOI Open Access
Adnan Nawaz,

Asjad Khan,

Amorntep Jirasakjamroonsri

et al.

Sustainability, Journal Year: 2024, Volume and Issue: 16(23), P. 10385 - 10385

Published: Nov. 27, 2024

This work was carried out to explore the potential use of used face masks in concrete develop sustainable green concrete. In this experimental study, were cut up, removing ear stripes and internal nose steel wire, prepare elongated fibers. These fibers incorporated cement fly ash mixtures as an additive determine response M20-grade The Class F (FA) employed a fractional substitute up 25% by weight, whereas addition occurred at 0%, 0.125%, 0.25% volume testing scheme focused on mechanical durability characteristics FA after 3, 28, 60 days curing. inclusion mask reduced density specimens. compressive, splitting tensile, flexural strengths mixes also early age; however, strength improved later ages, compared control mix. combination both materials resulted lower water absorption, bulk sorption, mass loss values against acid attack ages. Similarly, electrical resistance substantially enhanced increasing percentage materials. results demonstrated that processed can be utilized without significantly compromising resultant characteristics.

Language: Английский

Research on Recycling and Utilization of Shredded Waste Mask Fibers to Prepare Sustainable Engineered Cementitious Composites DOI Creative Commons
Yue Li, Xinyu Yan, Man Pun Wan

et al.

Buildings, Journal Year: 2025, Volume and Issue: 15(3), P. 402 - 402

Published: Jan. 27, 2025

The widespread disposal of single-use masks has led to significant environmental concerns. This study investigated the effects incorporating shredded waste mask fibers (SWMFs) on compressive and flexural properties concrete. experimental design included four fiber volume fractions, i.e., 0%, 1%, 2%, 3%, with three different sizes fibers. influences these load-bearing capacity, deformation behavior, energy absorption concrete under compression flexure was examined. Scanning electron microscopy (SEM) used analyze microstructure. results show that addition 1% SWMFs enhances mechanical performance, strengths 20.69 MPa 6.95 MPa, respectively, for B-sized Furthermore, incorporation discarded improved toughness material. In general strength requirements, a B-dimensional can be incorporated, which improve bending by 75% control group.

Language: Английский

Citations

0
Testing of recycled fine aggregate concrete’s mechanical properties using recycled fine aggregate concrete and research on technology for highway construction DOI Creative Commons
Yali Liu

Nonlinear Engineering, Journal Year: 2025, Volume and Issue: 14(1)

Published: Jan. 1, 2025

Abstract The rapid growth of transportation engineering has led to significant environmental challenges due the accumulation building waste and tailings. A promising solution is utilize these materials develop high-performance tailings recycled concrete (RFAC) for highway construction, promoting a green circular economy. This study advances existing research by exploring innovative mix design strategies performance optimization techniques enhance RFAC’s mechanical properties industrial applicability. Specifically, this investigates effects various iron admixtures on behavior deformation characteristics RFAC before after carbonation, aiming establish an optimal composition infrastructure. used include tailings, coarse aggregate, natural river sand, 42.5-grade ordinary silicate cement. Unlike conventional approaches, emphasizes influence particle morphology surface laboratory-produced fine revealing its angular shape, rough texture, larger specific area, which significantly impact fluidity, bulk density, crushing value. Experimental results demonstrate that fiber type admixture ratio play crucial role in improving slump, compressive strength, split tensile failure modes. Compared previous studies, provides more refined analysis proportioning introduces tailings-based enhancements, offering new insights large-scale applications engineering. By optimizing incorporation aggregate proportions, establishes systematic approach performance, durability, construction adaptability, laying foundation sustainable infrastructure development.

Language: Английский

Citations

0
Flexural performance of reinforced concrete beams incorporating polypropylene fibres: an experimental investigation and finite element model DOI
Razan H. Al Marahla, Muhammad K. Shehzad, Nour H. Almarahlleh

et al.

Innovative Infrastructure Solutions, Journal Year: 2025, Volume and Issue: 10(5)

Published: April 28, 2025

Language: Английский

Citations

0
Performance of Environmentally Friendly Concrete Containing Fly-Ash and Waste Face Mask Fibers DOI Open Access
Adnan Nawaz,

Asjad Khan,

Amorntep Jirasakjamroonsri

et al.

Sustainability, Journal Year: 2024, Volume and Issue: 16(23), P. 10385 - 10385

Published: Nov. 27, 2024

This work was carried out to explore the potential use of used face masks in concrete develop sustainable green concrete. In this experimental study, were cut up, removing ear stripes and internal nose steel wire, prepare elongated fibers. These fibers incorporated cement fly ash mixtures as an additive determine response M20-grade The Class F (FA) employed a fractional substitute up 25% by weight, whereas addition occurred at 0%, 0.125%, 0.25% volume testing scheme focused on mechanical durability characteristics FA after 3, 28, 60 days curing. inclusion mask reduced density specimens. compressive, splitting tensile, flexural strengths mixes also early age; however, strength improved later ages, compared control mix. combination both materials resulted lower water absorption, bulk sorption, mass loss values against acid attack ages. Similarly, electrical resistance substantially enhanced increasing percentage materials. results demonstrated that processed can be utilized without significantly compromising resultant characteristics.

Language: Английский

Citations

1