Prediction of concrete and FRC properties at high temperature using machine and deep learning: A review of recent advances and future perspectives

Journal of Building Engineering, Journal Year: 2023, Volume and Issue: 83, P. 108369 - 108369

Published: Dec. 29, 2023

Language: Английский

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Investigation of electrical resistivity for fiber-reinforced coral aggregate concrete

Construction and Building Materials, Journal Year: 2024, Volume and Issue: 414, P. 135011 - 135011

Published: Jan. 17, 2024

Language: Английский

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Fresh Properties, Strength, and Durability of Fiber-Reinforced Geopolymer and Conventional Concrete: A Review

Polymers, Journal Year: 2024, Volume and Issue: 16(1), P. 141 - 141

Published: Jan. 1, 2024

Reducing the environmental footprint of construction industry in general and concrete particular is essential. The addition synthetic natural fibers to mixes at appropriate dosages enhances durability strength extends lifespan infrastructures. This study reviews geometric mechanical properties selected such as steel, basalt, polypropylene, polyvinyl alcohol, polyethylene, glass, carbon, their impact on fresh, mechanical, when combined different configurations. focuses effect blending with that use alkali-activated binders based recycled industrial byproducts slag fly ash thereby contribute reduction CO2 contribution through complete or partial replacement Ordinary Portland cement (OPC). As a result, binder content, composition, alkaline activator concentration, water-to-binder (w/b) ratio fresh properties, strength, blended also evaluated this study. fiber-reinforced conventional OPC are compared. Fiber-reinforced may represent sustainable alternatives offers competitive fiber w/b ratio, type, dosage carefully considered mix design.

Language: Английский

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Effect of basalt fibers and silica fume on the mechanical properties, stress-strain behavior, and durability of alkali-activated slag-fly ash concrete

Construction and Building Materials, Journal Year: 2024, Volume and Issue: 418, P. 135440 - 135440

Published: Feb. 17, 2024

Language: Английский

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Study on dynamic mechanical properties and microstructure of basalt fiber reinforced coral sand cement composite *

Construction and Building Materials, Journal Year: 2024, Volume and Issue: 425, P. 136024 - 136024

Published: April 1, 2024

Language: Английский

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Fiber-Reinforced concrete and its life cycle assessment: A systematic review

Journal of Building Engineering, Journal Year: 2024, Volume and Issue: 94, P. 110062 - 110062

Published: June 26, 2024

Concrete is the most environmentally demanding construction material in use worldwide, so evaluating sustainability performance of concrete therefore essential. Fiber-Reinforced (FRC) can diminish carbon footprint concrete, being verified by Life Cycle Assessment (LCA). In this systematic review, using preferred reporting items for reviews and meta-analyses, 69 documents were studied to survey existing literature on FRC, its LCA methodology results, mechanical mixes. The results then presented, fibers characterized, analyze both environmental selected research papers representative indexes, mostly regarding Global Warming Potential (GWP). These indexes showed that impacts FRC mixes could be reduced, even reaching reductions GWP up 94 %, without hindering their performance. was highly dependent upon nature treatment used fibers. Thus, steel or synthetic common, yet polluting produce, while some recycled reached high due necessary treatments obtain adequate characteristics, as non-optimized production procedures result 7 % increase despite incorporation these sustainable raw materials. Nevertheless, those achieved promising diving half GWP, when carefully designed. Further development manufacturing processes fiber recovery characterization are also needed successful implementation greener solutions.

Language: Английский

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Synergistic effects of fiber hybridization on the mechanical performance of seawater sea-sand concrete

Construction and Building Materials, Journal Year: 2024, Volume and Issue: 416, P. 135087 - 135087

Published: Jan. 28, 2024

This study investigated the effect of hybrid fibers and their synergic interactions on mechanical properties seawater sea-sand (SWSS) concrete. These include compressive strength, elastic modulus, splitting tensile stress-strain behavior, ductility, as well slump air content. Two hybridizations were incorporated: micro-fibers (hybridization type fibers) micro- macro-fibers length fibers). The comprised three micro-fibers—polypropylene (PPS), polyvinyl alcohol (PVA), basalt (BF)—and two macro-fibers—polypropylene (PPL), twisted polypropylene (TPPL)—with a total volume fraction 0.25%. findings revealed that if designed properly can outperform mono-fibers in bridging micro-cracks. incorporating PVA/PPS BF/PPS enhanced both interlocking, facilitated by chemical bonding PVA BF, elongation, enabled PPS. synergistic led to significant 33–35% increase modulus compared mono PPS fibers. At same dosage fibers, PVA/BF hybridization significantly improved SWSS concrete energy absorption residual strength under compression 44% 181% over BF incorporation. Increasing reduced ductility increased brittleness. In PVA/PPL hybridization, fiber PPL capacity through with concrete, enhancing 59% 65% fiber. Overall, mono-fibers. was due positive synergy inter-fiber performance bonding, overcoming individual limitations (e.g., poor or ductility). more pronounced macro-fiber hybridization. this be used provide an for adding mix considering

Language: Английский

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Investigation on the flexural behaviour and crack propagation of hybrid steel fibre reinforced concrete with a low fibre content for tunnel structures

Construction and Building Materials, Journal Year: 2024, Volume and Issue: 417, P. 135253 - 135253

Published: Feb. 1, 2024

Language: Английский

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Effect of short to long hybrid elastic/hyperelastic (Glass/PP) fibers on high-strength engineered cementitious composites (ECC), along with presenting a constitutive model

Journal of Building Engineering, Journal Year: 2024, Volume and Issue: 89, P. 109215 - 109215

Published: April 2, 2024

Language: Английский

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Research on impact toughness and crack propagation of basalt fiber reinforced concrete under SHPB splitting test

Journal of Building Engineering, Journal Year: 2023, Volume and Issue: 77, P. 107445 - 107445

Published: July 26, 2023

Language: Английский

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