Journal of Material Cycles and Waste Management最新文献_第2页

Methodology for evaluation of lithium-ion black-mass battery recycling

IF 2.7 4区环境科学与生态学

Journal of Material Cycles and Waste Management Pub Date : 2025-02-06 DOI: 10.1007/s10163-025-02159-x

Hernan Anticoi, Lidia Garcia, Gabriel Dan, Pau Sola, Antonio D. Dorado

{"title":"Methodology for evaluation of lithium-ion black-mass battery recycling","authors":"Hernan Anticoi, Lidia Garcia, Gabriel Dan, Pau Sola, Antonio D. Dorado","doi":"10.1007/s10163-025-02159-x","DOIUrl":"10.1007/s10163-025-02159-x","url":null,"abstract":"<div><p>In response to the growing demand for critical raw materials, the European Commission is actively pursuing strategies to recycle these materials from various sources, including disused batteries. One of the significant challenges in this endeavor is the heterogeneous nature of the materials arriving at recycling plants, necessitating effective process evaluation. In this study, crushed scooter batteries were utilized, and a range of analytical techniques were employed to initially characterize the composition of the raw material and subsequently evaluate previous physical separation processes efficiently, effectively, and economically. The analytical methods utilized included scanning electron microscopy with energy-dispersive X-rays spectroscopy (SEM–EDS), X-ray fluorescence spectroscopy (XRF), X-ray diffraction (XRD), atomic absorption spectroscopy (AAS), loss of ignition (LOI), and differential scan calorimetry (DSC). In addition, two separation techniques were conducted: froth flotation and sink-and-float tests. The cathode's oxide type was identified through XRD analysis, and statistical methods were applied to all XRF analyses. Furthermore, the other analytical methods facilitated the determination of flux compositions, enabling the assessment of process performance. Regarding the robustness of the presented method, as is well known, performing a complete characterization of a material, including XRD, AAS, XRF, DSC, and SEM, could comprise a relatively high time if it is to identify the efficiency of a process (we estimate in several days, and even weeks). However, by reducing the analytical methods to LOI, XRF, and stream sampling, it is possible to conduct process efficiency evaluation in a few hours. This methodology would give the opportunity to achieve effective verifications in a short time and reduce possible efficiency problems in a treatment plant of this type of material.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"27 2","pages":"1019 - 1033"},"PeriodicalIF":2.7,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10163-025-02159-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143564392","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The effect of heavy metal stabilizers in arsenic-contaminated soil: using bioavailability

IF 2.7 4区环境科学与生态学

Journal of Material Cycles and Waste Management Pub Date : 2025-02-03 DOI: 10.1007/s10163-024-02155-7

Jeonghyeon Lee, Minye Seo, Woori Cho, Jai-Young Lee

{"title":"The effect of heavy metal stabilizers in arsenic-contaminated soil: using bioavailability","authors":"Jeonghyeon Lee, Minye Seo, Woori Cho, Jai-Young Lee","doi":"10.1007/s10163-024-02155-7","DOIUrl":"10.1007/s10163-024-02155-7","url":null,"abstract":"<div><p>Crops grown in arsenic-contaminated soil can negatively impact human health and ecosystems due to the transfer of arsenic. Therefore, it is essential to implement chemical stabilization to reduce bioavailability. This study aims to evaluate the effectiveness of stabilizers in reducing bioavailability. The stabilizers used were Fe(iron)–steel slag and Ecosta-A, a mixture of oyster shell and layer-double hydroxide(LDH). Phytoavailability and bioconcentration factor (BCF) were selected for evaluation of bioavailability. The study involved three conditions: A (stabilizer-free), B (Fe–steel slag treatment), and C (Ecosta-A treatment). Pots measuring 3 m × 3 m × 1 m were filled with arsenic-contaminated soil, and the stabilizers were mixed at a 5% ratio to the soil content and cured for about 18 months. <i>Allium fistulosum L.</i> (Welsh onions), <i>Eruca vesicaria</i> (Lettuce), and <i>Zea mays L.</i> (Corn) were then planted and grown for about 1–2 months. The phytoavailability test showed that arsenic content in the soil decreased by 97.06% in Condition C compared to Condition A, while it increased by 55.60% in Condition B. The BCF was calculated based on USEPA standards. BCF values were exceeded in the roots of plants under all conditions, and no translocation was observed in the edible parts of plants grown under conditions B and C. Therefore, this study demonstrates that evaluate phytoavailability and BCF is important for confirming the effect of stabilizers in reducing bioavailability. The results suggest that the Ecosta-A stabilizer is more effective in this regard.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"27 2","pages":"746 - 760"},"PeriodicalIF":2.7,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143564381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Addition of vermicompost and pond sludge improves the quality of growth media based on green waste compost for Stevia rebaudiana Bertoni seedlings 添加蛭石和池塘污泥可提高以绿色垃圾堆肥为基础的甜叶菊生长介质的质量

IF 2.7 4区环境科学与生态学

Journal of Material Cycles and Waste Management Pub Date : 2025-02-02 DOI: 10.1007/s10163-025-02166-y

Yifeng Dai, Lu Zhang

{"title":"Addition of vermicompost and pond sludge improves the quality of growth media based on green waste compost for Stevia rebaudiana Bertoni seedlings","authors":"Yifeng Dai, Lu Zhang","doi":"10.1007/s10163-025-02166-y","DOIUrl":"10.1007/s10163-025-02166-y","url":null,"abstract":"<div><p>Composted green waste (CGW) is commonly used as a growth medium; however, its application is often limited by nutrient imbalances, high pH, and elevated electrical conductivity (EC), which can hinder plant growth. Incorporating vermicompost (VC) and pond sludge (PS) into CGW has the potential to improve its nutrient profile and suitability for cultivation. This study investigated the synergistic effects of VC and PS amendments on the growth performance of <i>Stevia rebaudiana</i> Bertoni (stevia) when used as enhancements to CGW. A factorial experiment was conducted with varying levels of VC (0, 10, and 20%) and PS (0, 10, and 25%) to evaluate their impact on key growth parameters, including above-ground and root biomass, root length, plant height, and chlorophyll content, over a 90-day cultivation period. Results revealed that the combined application of VC and PS significantly improved stevia growth and nutrient uptake, with the 10% VC and 10% PS treatment yielding the highest plant height, biomass, and overall growth performance compared to unamended CGW. In conclusion, CGW amended with 10% VC and 10% PS represents an optimal formulation for enhancing stevia growth, with broader implications for improving growth media in sustainable agriculture.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"27 2","pages":"1096 - 1108"},"PeriodicalIF":2.7,"publicationDate":"2025-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143564355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reclaimed brick masonry waste recycling in macro–micro amelioration of cemented clayey soil: an eco-friendly construction waste solution

IF 2.7 4区环境科学与生态学

Journal of Material Cycles and Waste Management Pub Date : 2025-02-02 DOI: 10.1007/s10163-025-02161-3

Ansar Ahmad, Usama Khalid, Zia ur Rehman, Muhammad Jawed Iqbal

{"title":"Reclaimed brick masonry waste recycling in macro–micro amelioration of cemented clayey soil: an eco-friendly construction waste solution","authors":"Ansar Ahmad, Usama Khalid, Zia ur Rehman, Muhammad Jawed Iqbal","doi":"10.1007/s10163-025-02161-3","DOIUrl":"10.1007/s10163-025-02161-3","url":null,"abstract":"<div><p>Reclaimed brick masonry makes up a noteworthy portion of construction and demolition waste (CDW), totaling approximately 31%, even exceeding concrete waste. This study proposes using reclaimed brick masonry to enhance the micro- and macro-properties of clayey soil. Extensive laboratory testing was conducted to evaluate the performance of reclaimed brick powder (BP) along with 5% cement content. The cement was used to generate chemical bonds with BP and soil grains. Micro-testing like XRF, XRD, EDAX, and SEM analyses confirmed the formation of CSH and CAH compounds which strengthened soil structure and enhanced its brittleness. However, after 10% BP, the addition of coarser grains converted the soil structure from dense to porous. Macro-properties assessment confirmed that 10% BP with 5% cement content is an optimum combination for selected soil. The addition of BP reduces the required amount of cement for soil stabilization, making it an eco-friendlier solution. The addition of the optimum combination decreased the <i>w</i><sub><i>L</i></sub>, <i>I</i><sub><i>P</i></sub>, FSI, <i>w</i><sub><i>opt</i></sub>, and <i>C</i><sub><i>c</i></sub> and increased the <i>γ</i><sub><i>dmax</i></sub>, <i>q</i><sub><i>u</i></sub>, CBR value, and <i>σ</i><sub><i>y</i></sub> significantly. It is also confirmed by the specimen’s failure morphology analysis that BP with cement in clayey soil curtailed cement generated brittleness and enhanced ductility.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"27 2","pages":"1062 - 1083"},"PeriodicalIF":2.7,"publicationDate":"2025-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143564354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exploring landfill conditions: analyzing relationships among waste composition, leachate water quality, and microbial community structure in inert-waste landfill sites

IF 2.7 4区环境科学与生态学

Journal of Material Cycles and Waste Management Pub Date : 2025-01-30 DOI: 10.1007/s10163-025-02164-0

Shusaku Hirakawa, Tomoko Koga, Nobuhiro Shimizu, Kazuhiro Fujikawa, Kazuhiro Tobiishi, Mineki Toba

{"title":"Exploring landfill conditions: analyzing relationships among waste composition, leachate water quality, and microbial community structure in inert-waste landfill sites","authors":"Shusaku Hirakawa, Tomoko Koga, Nobuhiro Shimizu, Kazuhiro Fujikawa, Kazuhiro Tobiishi, Mineki Toba","doi":"10.1007/s10163-025-02164-0","DOIUrl":"10.1007/s10163-025-02164-0","url":null,"abstract":"<div><p>To explore methods supplementing the insights gained from chemical analysis in understanding landfill conditions, we analyzed the relationship between landfill waste composition, microbial community structure in leachate, and leachate water quality. The principal component analysis of water quality and classification of landfills by waste composition showed that landfills with more plastic had lower total contamination than others. The types of organic and inorganic components in the leachate also varied with the landfill waste composition. The microbial community structure at the phylum level in leachate of inert-waste landfill sites was <i>Proteobacteria</i> emerged as the predominant phylum (55% on average) and <i>Bacteroidetes</i> followed as the second most prevalent (12% on average), while <i>Firmicutes</i> was less dominant (0.3% on average). Additionally, the amount of plastic in the landfill waste was related to cyanobacteria, known for their role in plastic degradation. Microbial taxa involved in organic metabolism and oxidation reactions were related to bicarbonate ion (HCO<sub>3</sub><sup>‒</sup>), and those involved in oxygen-deficient environments and methane fermentation were connected to water quality parameters, such as COD, TOC, EC, inorganic ionic components, and Co. In the future, assessing the proportions of characteristic microbial taxa in leachate could help understand landfill conditions.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"27 2","pages":"1050 - 1061"},"PeriodicalIF":2.7,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143564559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessment of the geotechnical and environmental reuse potential of soil-like material recovered from Anantapur dumpsite, South India

IF 2.7 4区环境科学与生态学

Journal of Material Cycles and Waste Management Pub Date : 2025-01-27 DOI: 10.1007/s10163-025-02160-4

Rama Bhupal Reddy Donthi, Bhavani Ramannagari

{"title":"Assessment of the geotechnical and environmental reuse potential of soil-like material recovered from Anantapur dumpsite, South India","authors":"Rama Bhupal Reddy Donthi, Bhavani Ramannagari","doi":"10.1007/s10163-025-02160-4","DOIUrl":"10.1007/s10163-025-02160-4","url":null,"abstract":"<div><p>Revitalizing landfills containing long-standing garbage in an environmentally responsible manner is a significant challenge for developing countries, especially urban local authorities in India. This study evaluates the feasibility of using soil-like material (SLM) recovered from the Anantapur dumpsite in South India. The SLM, with particle sizes under 4.75 mm, is examined for potential applications such as fill material for embankments, filling low-lying areas, addressing deep pits, and as compost for horticulture and agriculture. Initial tests on the SLM revealed that it constitutes about 70% of the total excavated waste, with organic content ranging from 14 to 16%. However, the presence of yellowish water leachate, soluble salts, and heavy metals indicates that treatment is necessary before off-site reuse. Specific design measures are required to mitigate risks when using SLM as earth-fill. Due to its high concentration of heavy metals, the reuse of SLM as compost may be restricted to non-agricultural applications and reclamation of barren land. However, with the addition of required nutrients, SLM could potentially be used for non-edible crops and nurseries, expanding its utility while ensuring environmental safety.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"27 2","pages":"1034 - 1049"},"PeriodicalIF":2.7,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143564482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Upcycling of medical wastes for high-value syngas over Ni-based catalysts 在镍基催化剂上对医疗废物进行升级再循环以产生高价值合成气

IF 2.7 4区环境科学与生态学

Journal of Material Cycles and Waste Management Pub Date : 2025-01-27 DOI: 10.1007/s10163-025-02163-1

Xinxin Xing, Qi Wang, Tianqi Bu, Jinqiang Zhang, Lei Wang, Yinfeng Wang, Xiaotao Bi, Yuezhao Zhu

{"title":"Upcycling of medical wastes for high-value syngas over Ni-based catalysts","authors":"Xinxin Xing, Qi Wang, Tianqi Bu, Jinqiang Zhang, Lei Wang, Yinfeng Wang, Xiaotao Bi, Yuezhao Zhu","doi":"10.1007/s10163-025-02163-1","DOIUrl":"10.1007/s10163-025-02163-1","url":null,"abstract":"<div><p>The amount of medical waste increases rapidly due to the continuous expansion of medical resources and the public health system. The complexity, pathogenicity and infectivity of medical waste make it difficult to be disposed properly. Pyrolysis, as a promising technology, can realize the harmless disposal and resource utilization of organic solid wastes. In this study, fundamental experiments on catalytic pyrolysis of medical waste to produce value-added syngas were conducted. Nickel-based catalysts (MK–Ni, AT–Ni, ZSM-5–Ni and CaO–Ni) were prepared to further investigate the catalysis pyrolysis behavior of medical waste containing mixed components (plastic, wood (bamboo), rubber, and synthetic fiber). The results showed that the catalyst showed the best effect on gas production at 900 ℃, adding Ni/AT has the highest gas yield (83.99%), the highest synthesis gas (H<sub>2</sub> + CO) yield (65.65%), with the carbon conversion ratio reached 54.31% and the best H<sub>2</sub>/CO production ratio as 2.27 which facilitates the production of methanol. Meanwhile, Ni/HZSM-5 has the highest synthesis gas (H<sub>2</sub> + CO) yield (56.775%) below 900 ℃. This study aims to provide theoretical guidance for treatment and disposal of medical waste for the low cost and potential economic and environmental benefits.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"27 2","pages":"1084 - 1095"},"PeriodicalIF":2.7,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143564483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The current status of recycling technology for waste NdFeB resources

IF 2.7 4区环境科学与生态学

Journal of Material Cycles and Waste Management Pub Date : 2025-01-26 DOI: 10.1007/s10163-025-02162-2

Chuxuan Deng, Xiaowei Zhang, Feng Guo, Shuang Wang, Xiaodong Wang

{"title":"The current status of recycling technology for waste NdFeB resources","authors":"Chuxuan Deng, Xiaowei Zhang, Feng Guo, Shuang Wang, Xiaodong Wang","doi":"10.1007/s10163-025-02162-2","DOIUrl":"10.1007/s10163-025-02162-2","url":null,"abstract":"<p>Neodymium-iron-boron (NdFeB) permanent magnet materials are widely used and critical due to their resource scarcity, making the recycling of NdFeB waste a pivotal issue for sustainable development. This study reviews four key recycling methods: hydrometallurgy, pyrometallurgy, electrometallurgy, and direct recycling. Hydrometallurgy achieves high purity and flexibility but involves significant chemical use and environmental impact. Pyrometallurgy suits high-grade waste with a simple process but is energy-intensive. Electrometallurgy is eco-friendly but limited by high costs and complexity. Direct recycling, efficient and straightforward, is suitable for intact waste but less effective for complex materials. This study underscores the need to evaluate recycling technologies comprehensively, considering critical metrics such as recovery rate, cost efficiency, and environmental impact, which are often underrepresented in current research. Future advancements should focus on optimizing multi-process integration, developing green reagents and efficient separation technologies, and enhancing the utilization of low-value components to achieve a balance between economic viability and sustainability. These findings provide valuable insights for establishing efficient and eco-friendly NdFeB waste recycling systems.</p>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"27 2","pages":"796 - 811"},"PeriodicalIF":2.7,"publicationDate":"2025-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143564481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparative analysis of flotation agents for enhanced separation of acrylonitrile butadiene styrene and polystyrene mixtures

IF 2.7 4区环境科学与生态学

Journal of Material Cycles and Waste Management Pub Date : 2025-01-15 DOI: 10.1007/s10163-025-02158-y

Pattarasiri Fagkaew, Ploypailin Romphophak, Nattawin Chawaloesphonsiya, Pisut Painmanakul

{"title":"Comparative analysis of flotation agents for enhanced separation of acrylonitrile butadiene styrene and polystyrene mixtures","authors":"Pattarasiri Fagkaew, Ploypailin Romphophak, Nattawin Chawaloesphonsiya, Pisut Painmanakul","doi":"10.1007/s10163-025-02158-y","DOIUrl":"10.1007/s10163-025-02158-y","url":null,"abstract":"<div><p>Effective separation of plastic mixtures with similar physicochemical properties requires the utilization of appropriate flotation agents. In this study, both virgin and post-consumer acrylonitrile–butadiene–styrene (ABS) and polystyrene (PS) plastics were chosen as research objects to investigate the effects of flotation agents in ABS–PS flotation. Optimal conditions and wetting behaviors of wetting agents for efficient separation were identified. Tannic acid (TA) demonstrated superior selectivity than lignosulfonate (LS), attributed to its selective wettability on ABS, referring to greater surface-free energy and stronger repulsive interfacial interaction. Additionally, Polyoxyethylene (5) Lauryl Ether (laureth-5) was identified as a potential frother as well as methyl isobutyl carbinol (MIBC); however, its application was limited at high concentrations due to rapid surface tension reduction. These findings suggest that the selection of a suitable frother for ABS–PS flotation should not only consider the ability to produce fine bubbles and stabilize the froth but also the ability to reduce the surface tension of the liquid medium. Overall, high recovery and purity, exceeding 90%, were achieved for both virgin and post-consumer ABS–PS at TA concentration of 5 mg/L, MIBC concentration of 5 mg/L, and conditioning time of 15 min.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"27 2","pages":"1008 - 1018"},"PeriodicalIF":2.7,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143564327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of amorphous content in recycled fly ash on binder hydration characteristics 回收粉煤灰中的无定形成分对粘结剂水化特性的影响

IF 2.7 4区环境科学与生态学

Journal of Material Cycles and Waste Management Pub Date : 2025-01-07 DOI: 10.1007/s10163-024-02147-7

Yuguo Yu, Chamila Gunasekara, Yogarajah Elakneswaran, Dilan Robert, David W. Law, Sujeeva Setunge

{"title":"Influence of amorphous content in recycled fly ash on binder hydration characteristics","authors":"Yuguo Yu, Chamila Gunasekara, Yogarajah Elakneswaran, Dilan Robert, David W. Law, Sujeeva Setunge","doi":"10.1007/s10163-024-02147-7","DOIUrl":"10.1007/s10163-024-02147-7","url":null,"abstract":"<div><p>Greening of the construction sector has witnessed the widespread practice of recycling fly ash into building materials for decades. The control of ash waste quality is an important aspect for its viability as a supplementary cementitious material, where the detailed physical and chemical characteristics play crucial roles. To better facilitate informed greener design, a novel method is leveraged to study particularly the influence of amorphous content in fly ash on binder hydration. In this study, a coupled kinetic-thermodynamic approach is implemented to realise comprehensive hydration assessment. The adopted kinetics-based model is developed following unified theory to quantify the hydration/reaction degrees for cement and fly ash. Such kinetic information is further utilised in thermodynamic analysis, powered by Gibbs energy minimisation method, to evaluate the time-dependent phase assemblage of cementitious system upon continuous hydration. The applied technique is carefully verified against a series of reported tests, before further exploited to conduct numerical explorations. Computational findings highlight the influence of amorphous content in fly ash on the chemo-physical–mechanical properties of concrete products, providing insights for future sustainable construction material design.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"27 2","pages":"729 - 745"},"PeriodicalIF":2.7,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10163-024-02147-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143564398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0