Published: Jan. 1, 2024
Language: Английский
Structural Concrete, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 10, 2025
Abstract Recent research suggests that incorporating waste fiber materials into concrete can enhance sustainable management practices and reduce the need for extracting natural resources. Textile cardboard waste, which are abundantly available worldwide, offer significant opportunities to be repurposed in building materials, simultaneously minimizing landfill waste. This study explores durability of composites containing textile fibers, with a focus on using silica fume as modification technique kraft walls (SFKFs) found SFKFs replaced 5% cement by volume (SFKF5), while 2.5% polyester fibers (T2.5) were added reinforcement agent. Microstructural analysis showed variations how integrated matrix. The rougher surfaces improved anchorage, smooth texture promoted uniform dispersion. Mechanical testing, including compressive, tensile, tests, was conducted all composite specimens subjecting them thermal freeze–thaw cycles. Observations weight loss strength characteristics supported mechanical results. SFKF5 23.9% increase compressive after 100 Initially, combination T2.5 (KFT) demonstrated highest tensile at 28 days. However, outperformed specimen exhibited 45 MPa achieved 4.3 following These findings confirm reinforced under various environmental conditions, highlighting its potential construction material.
Language: Английский
Citations
1
Construction Materials, Journal Year: 2024, Volume and Issue: 4(2), P. 401 - 424
Published: April 29, 2024
The building and construction industry consumes a significant amount of natural resources alongside contributing to the generation waste materials. Addressing dual challenge management recycling in this sector is imperative. This study begins with bibliometric assessment identify materials used as insulation systems. 2627 publications revealed mattress were seldom considered. aim research focuses on exploring alternative methods for repurposing construction, aiming mitigate generation. While various are being recycled applications, emphasises potential incorporating polyurethane foam (PUF) from mattresses products. A transient plane source (TPS) was employed determine thermal conductivity PUF obtained plant Victoria, Australia. results exhibited promising resistance, mean value 0.053 Wm/K. However, optimal performance observed increased thickness, suggesting that thickness 215mm aligns standards fabric Further required comprehensively analyse moisture resistance fire retardation paper presents key findings current trends, limitations, future directions use an material.
Language: Английский
Citations
5
Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)
Published: March 12, 2025
This study investigates the use of novel flattened-end nylon fibres (FENF) as reinforcement in concrete to improve its mechanical properties. The research addresses inadequate circumferential bonding between macro synthetic and matrix, which can lead fibre slippage or failure. Through experiments involving 19 mixes with varying dosages (0.5%, 1% 1.5%), aspect ratios (35, 55 75), shapes (straight flattened-end), examines impact FENF on workability strengths. strength tests illustrate significance dosage, ratio especially shape compressive, split-tensile flexural strengths are respectively showing an increase up 10.3%, 25.1% 26.1% when compared conventional concrete. Similarly, straight fibre-reinforced also achieved comparable increments 11.8%, 13.9% 15.9% for indicates that positive effect helped better performance Further, statistical methods, including regression analysis, Principal Components Analysis, Response Surface Methodology, employed analyse complex relationships characteristics identify optimal configurations. Using Scanning Electron Microscope (SEM) microstructural view has been studied evaluate interaction matrix.
Language: Английский
Citations
0
International Journal of Mechanical Sciences, Journal Year: 2025, Volume and Issue: unknown, P. 110207 - 110207
Published: March 1, 2025
Language: Английский
Citations
0
Structural Concrete, Journal Year: 2024, Volume and Issue: 25(5), P. 4033 - 4047
Published: July 17, 2024
Abstract Waste fiber reinforced concrete is gaining recognition as a high‐performance construction material, offering notable load‐bearing capacity, corrosion resistance, and enhanced durability features. As the building industry focuses on sustainable practices, fibers derived from waste materials create an opportunity to be utilized further in composite designs. This study explores tensile, compressive, flexural behaviors of cardboard (kraft fibers) textile polyester materials. The microstructure also investigated using scanning electron microscope (SEM) measure bonding performance within cementitious matrix. Four mix designs were created 2.5% reinforcement agent 5% silica fume modified kraft (SFKFs) partial cement replacement. combination achieved 44 MPa compressive strength, equaling control. Tensile strength was by when two fibers, achieving 3.58 comparison 3.41 MPa. However, reduced among all fibrous SEM images distinguished natural synthetic characteristics associated with Namely, demonstrating chemical SFKFs physical properties fibers. serves valuable resource for future investigations broader adoption binary applications.
Language: Английский
Citations
3
Journal of Building Engineering, Journal Year: 2024, Volume and Issue: 96, P. 110429 - 110429
Published: Aug. 10, 2024
This investigation explores the potential of geopolymer technology as an eco-friendly substitute for conventional construction materials by emphasizing innovative use naturally occurring green rhyolitic tuff and repurposed travertine powder in paste formulations. Replacement levels with at 40 %, 45 50 along alkaline solution a NaOH molarity range 8.2 M–22.1 M, have been analyzed their impact on flowability, water absorption, porosity, compressive strength, unit weight geopolymers over curing periods 2, 28, 90 days. The flowability measurements show that adding % leads to approximately 7 31 reductions geopolymer, respectively. It is demonstrated significantly improves geopolymers' strength 11.5 M concentration, showing substantial increases 15.5, 9.0, 2.4 times duration days, respectively, relative without travertine. As optimum points, 18.5 0.7 solution-to-powder ratio decrease long-term apparent porosity absorption about 14 19 compared those same NaOH, Microscopic examinations were employed validate development sodium aluminosilicate hydrate, calcium silicate hydrate gels, underscoring advantageous contribution elevated CaO content matrix. research not only highlights environmental benefits repurposing waste but also contributes more sustainable durable pastes, offering promising approach enhancing stewardship material science practices.
Language: Английский
Citations
2
Journal of Building Engineering, Journal Year: 2024, Volume and Issue: 94, P. 110027 - 110027
Published: June 22, 2024
With the addition of textile fibres that alters pore structure, novel Textile Fibre Reinforced Concrete (TFRC) exhibits great potential in reducing drying shrinkage and enhancing long-term durability. To advance material design, this study aims at developing a coupled experimental-numerical framework with data-enhanced approach to identify essential properties govern moisture transportation TFRC. The scope analysis covers TFRC manufactured various fibre types different volumes, where time-dependent effect associated early age is investigated. An inverse framework, coupling Particle Swarm Optimization (PSO) extended support vector regression (XSVR), developed validated against experimentation by monitoring distribution. Results reveals incorporation leads substantial reduction diffusivity TFRC, as opposed conventional concrete identical w/b aggregate content. Notably, mixtures 0.4% Nylon twist PTT600 showed 95% compared concrete. This discovery illustrates capability fibres, when optimally introduced, mitigate loss from cementitious materials, building. proposed demonstrated be able robustly quantify early-age which guide future design using reinforcement towards controlling building industry.
Language: Английский
Citations
1
Buildings, Journal Year: 2024, Volume and Issue: 14(11), P. 3636 - 3636
Published: Nov. 15, 2024
Traditional concrete structures are frequently linked to poor energy efficiency and substantial heat loss, which pose significant environmental issues. To enhance thermal insulation reduce the use of precast insulated walls is suggested. This research introduces a new energy-efficient panel (PCP). We explored various material combinations, including air bubbles, nano microsilica compound (NMC), powder (NMP), latex, determine most effective formulation. A total 99 tests were performed assess compressive strength samples, with 28 selected for conductivity evaluations at temperatures 300 °C 400 based on satisfactory results. The results indicated that optimal mix 4% bubbles 13% NMC achieved lowest conductivities 1.31 W/m·K 1.20 °C, respectively, showing improvement ratios 7% 15.5% compared baseline tests. Additionally, included latex did not meet standards. combinations identified in this can be effectively utilized PCPs, resulting savings. It expected stakeholders green building sector will recognize these proposed PCPs as practical solution advance sustainable environmentally friendly construction practices.
Language: Английский
Citations
1
Published: Jan. 1, 2024
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Language: Английский
Citations
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Published: Jan. 1, 2024
Language: Английский
Citations
0