E-waste in concrete construction: recycling, applications, and impact on mechanical, durability, and thermal properties—a review

Innovative Infrastructure Solutions, Journal Year: 2025, Volume and Issue: 10(6)

Published: May 25, 2025

Language: Английский

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Testing of recycled fine aggregate concrete’s mechanical properties using recycled fine aggregate concrete and research on technology for highway construction

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

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Low carbon multi-binder composite using lithomargic soil, biomass, and calcined seashell powder for sustainable bricks

Discover Sustainability, Journal Year: 2024, Volume and Issue: 5(1)

Published: Aug. 15, 2024

Abstract Bricks are manufactured using clays, which fired at temperatures ranging from 1000 to 1200 °C. Due the lack of quality clay, it is necessary find alternate soils and waste materials for manufacturing bricks. The use agricultural, aqua-cultural, industrial wastes in construction bricks leads low-carbon material. This addresses problem agro-aqua-industrial disposal. present study focuses on utilization biomass (BM) slaked seashell powder (SSP) compressed soil made with locally available lithomargic (LS). proposed prepared 85% processed soil, 12.5% 2.5% powder. reaction multi-binder has been activated by one-part activation. cast blocks temperature cured 100 °C, 250 500 °C & 750 understand effect hydration process binder tested compressive strength, initial rate absorption, water absorption test, chloride content, sulphate microstructure analysis thermal conductivity. strength bonding masonry, 3 prism 4 tests were also conducted. Overall results indicate that bio-based alkali-activated brick masonry superior real-time adaptation because reaches 10 MPa 11.2 0.98 1.2 shear curing

Language: Английский

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Exploring the potential of arecanut fibers and fly ash in enhancing the performance of self-compacting concrete

Journal of Engineering and Applied Science, Journal Year: 2024, Volume and Issue: 71(1)

Published: Aug. 22, 2024

Abstract Self-compacting concrete (SCC) is an innovative material for construction that offers excellent workability and flowability while achieving effective uniform compaction without the need external vibration. Using experimental approach, this study investigates effect of incorporating arecanut fibers on performance self-compacting (SCC). The focus optimizing fiber content improved characteristics. examines three different lengths (8 mm, 10 12 mm) volume fractions (1%, 2%, 3%) partially replacing 30% cement by weight with fly ash. Tests SCC mixes revealed favorable characteristics: slump flow between 650 750 T 500 time 2–5 s, V-funnel 5–10 L-box ratio 0.8–1.0, J-ring values within 0–10 mm as recommended EFNARC guidelines. Furthermore, ash significantly enhanced hardened properties SCC, particularly its compressive strength. A mix containing 2% 10-mm long achieved a strength 40.26 MPa, which about 15.14% increase compared to reference 35 MPa. Similarly, using 1% fraction increased split tensile 14.04% flexural 35.87% control mix. Fly enhance durability reducing Coulomb charges improving resistance chloride penetration. However, water absorption rate can lead overall in concrete. Microstructural analysis (SEM) bonding reduced voids, further supporting durability. Additionally, EDX confirmed presence various elements from ash, providing valuable data evaluating long-term these mixes.

Language: Английский

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Effects of acid and sulphate attack on concrete containing recycled plastic waste fine aggregate

Innovative Infrastructure Solutions, Journal Year: 2024, Volume and Issue: 9(11)

Published: Nov. 1, 2024

Language: Английский

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Effect of sand coating and Synergetic impacts of Styrene Butadiene Rubber Latex polymer, Silica Fume and Macro Synthetic Fibers on Mechanical properties of Concrete with Electronic waste Aggregates

Deleted Journal, Journal Year: 2024, Volume and Issue: unknown, P. 100033 - 100033

Published: Dec. 1, 2024

Language: Английский

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