Simulation of inhibition and targeted adsorption of rubberized asphalt VOCs by UiO-66 based on molecular dynamics

Journal of Cleaner Production, Journal Year: 2024, Volume and Issue: 447, P. 141541 - 141541

Published: March 1, 2024

Language: Английский

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Interaction of composite fume suppression and order elimination agents with crumb rubber modified asphalt: Inhibition behavior of volatile organic compounds (VOCs) and inorganic fume

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 935, P. 173459 - 173459

Published: May 22, 2024

Language: Английский

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Study on the effect of different aldehyde modifiers on the fume suppression effect, mechanism and road performance of SBS modified asphalt

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 912, P. 169162 - 169162

Published: Dec. 9, 2023

Language: Английский

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Fumes suppression effect and road performance of modified asphalt investigation by halloysite nanotubes

Construction and Building Materials, Journal Year: 2025, Volume and Issue: 472, P. 140868 - 140868

Published: March 19, 2025

Language: Английский

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Effect of tea stalk biochar derived from pyrolysis at different temperatures on adsorption capacity of asphalt fume

Construction and Building Materials, Journal Year: 2025, Volume and Issue: 481, P. 141523 - 141523

Published: May 5, 2025

Language: Английский

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Emission Risk and Inhibition Technology of Asphalt Fume from Crumb Rubber Modified Asphalt

Sustainability, Journal Year: 2024, Volume and Issue: 16(20), P. 8840 - 8840

Published: Oct. 12, 2024

Crumb rubber-modified asphalt mixtures have been proven to extensive utilization value in road engineering. However, the rubber releases more fumes during construction period, which causes severe harm human health and environment. This research focused on emission risk of fume from crumb asphalt, then inhibition technology was also optimized. Firstly, behavior hazardous evaluation were investigated. Then, characteristics materials evaluated. Finally, reduction inhibited identified, optimized formula determined based effect, rheological properties, cost. The results indicate that asphalts release components with an increment temperature content. Desulfurized reduces H2S NO. Benzene compounds, including paraxylene, toluene, benzene, are most released pollutants health, especially DS CRA 20% 50%. Kaolin powder expanded graphite a sufficient pore structure volume, addition while possibly promoting NO H2S. Their has significant control effect particulate matter at 170 °C 185 °C. With consideration emissions, cost, 40%-EG2%-KL2% as optimization formula. is helpful application maintenance.

Language: Английский

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Feasibility and environmental assessment of introducing waste polyurethane from wind turbine blades as a modifier for asphalt

Construction and Building Materials, Journal Year: 2024, Volume and Issue: 446, P. 138052 - 138052

Published: Aug. 28, 2024

Language: Английский

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Healing Evaluation of Asphalt Mixtures with Polymer Capsules Containing Rejuvenator under Different Water Solutions

Sustainability, Journal Year: 2023, Volume and Issue: 15(21), P. 15258 - 15258

Published: Oct. 25, 2023

Polymer Ca-alginate capsules with rejuvenator bring a high healing level for asphalt concrete under dry environments; however, the levels of bituminous mixtures containing water conditions are still unknown. In view this, this study aimed at exploring polymer various solution following cyclic loads. This involved preparation capsules, followed by evaluation their morphological characteristics, resilience to compression, thermal endurance, and content. The assessment properties utilizing was conducted through fracture–heal–refracture examination. Fourier transform infrared spectrum experiments determine release ratio remaining content in extracted binder from capsule–asphalt after treatment. Meanwhile, dynamic shear rheometer utilized investigate rheological characteristics binder. Results revealed that ratios beams environment were significantly higher than conditions, alkali has worst effect on improvement ratio. coupled impact moisture intrusion ion erosion resulted an enhancement complex modulus while concurrently reducing its phase angle. Consequently, restorative capacity weakened.

Language: Английский

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Effect of Reactive Fumes Suppressant Dopo on the Chemical Composition and Performance of Asphalt

Published: Jan. 1, 2024

9,10-Dihydro-9-oxa-10-phosphorophenanthrene-10-oxide (DOPO), recognized for its role as an efficacious fume suppressant, has been shown to mitigate the emission of noxious vapors emanating from asphalt. However, comprehensive influence DOPO on composition and properties asphalt had remained unexplored. This study embarked in-depth examination effects various dosages chemical asphalt, employing hydrogen nuclear magnetic resonance spectroscopy (1H-NMR) alongside exhaustive analysis components. Furthermore, investigation elucidated consequences different physical, rheological properties, aging resistance The results 1H-NMR component disclosed that engaged in reactions with unsaturated groups within catalyzing a metamorphosis saturates into aromatics resins. Such transformations were instrumental augmenting softening point, viscosity, rutting propensity while imposing minimal impact penetration ductility. Post exposure thin film oven test (TFOT), pressure vessel (PAV), ultraviolet (UV) aging, modified (DMA) exhibited diminution increment point viscosity index relative control DMA showcased enhanced retention rates ductility, coupled substantially reduced shifts complex modulus phase angle post-aging, underlining superior anti-aging prowess. Fourier transform infrared revealed comparatively slower rate change carbonyl sulfoxide after opposed Notably, UV TFOT PAV scenarios, trait attributable remarkable absorption capabilities DOPO. Fundamentally, high-temperature performance simultaneously diminishing fumes.

Language: Английский

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Analysis of the Odor Purification Mechanism and Smoke Release of Warm-Mixed Rubber Asphalt

Applied Sciences, Journal Year: 2024, Volume and Issue: 14(13), P. 5640 - 5640

Published: June 28, 2024

This study focuses on the common key technologies of “environmentally friendly and resource-saving” asphalt pavement. Reactive deodorizers react with volatile chemicals irritating odors in under high temperature conditions, converting them into stable non-volatile macromolecules to remove achieve a deodorizing effect. A goal is develop clean pavement materials main characteristics “low consumption, low emissions, pollution, efficiency”. In this experimental research, we used gas-emission detection devices methods detect evaluate odor concentration, SO2, NO, organic compounds, other gases substances production construction mixtures. By combining rheological experiments, mechanical means, investigates effects enhancers penetration, ductility, softening point, high-temperature properties, construction, workability warm-mix Furthermore, infrared spectroscopy experiments are conduct in-depth research odor-enhancing mechanism enhancers. The results indicate that addition has little effect penetration point maintains basic performance stability asphalt. terms properties workability, agents significant impact failure rotational viscosity asphalt, while influence relatively small. At higher temperatures, increases increase amount deodorant added. Functional group analysis shows newly added have essential chemical composition addition, during process, it was found coupling reactions between agent warm-mixing can effectively improve degradation harmful gases. After action agent, rate gas be increased by 5–20%, ensuring powder better than liquid an dosage will enhance provides important basis for deeper understanding odorless modified

Language: Английский

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