Cleaner Waste Systems最新文献_第4页

A review of the circular economy approach to the construction and demolition wood waste: A 4 R principle perspective

Cleaner Waste Systems Pub Date : 2025-03-04 DOI: 10.1016/j.clwas.2025.100248

Hami Abdolmaleki, Zana Ahmadi, Ehsan Hashemi, S. Talebi

{"title":"A review of the circular economy approach to the construction and demolition wood waste: A 4 R principle perspective","authors":"Hami Abdolmaleki, Zana Ahmadi, Ehsan Hashemi, S. Talebi","doi":"10.1016/j.clwas.2025.100248","DOIUrl":"10.1016/j.clwas.2025.100248","url":null,"abstract":"<div><div>The production of construction and demolition wood waste (CDWW), which is the name for all the wood that will eventually end up in some landfills, presents significant ecological and environmental risks due to its hazardous nature. With a focus on the 4Rs—Reduce, Reuse, Recycle, and Recover—this study explores the application of the circular economy (CE) to CDWW. For ecological sustainability and carbon footprint reduction, the CE method encompasses any strategy that also minimizes waste production and maximizes resource recovery. This research investigates a range of wood waste categories, including Preservative Treated Wood Waste, Engineered Wood Waste, and Untreated Wood Waste (UWW), while proposing suitable methods for managing them sustainably. Better resource efficiency, economic resilience, and environmental protection are provided by this study's observation of CE. This study outlines how CE can lead to more equitable consumption and reduced greenhouse gas emissions by improving resource efficiency, economic resilience, and environmental protection. The results demonstrate that there is sufficient potential for addressing the waste disposal issue and resolving sustainable development issues through the integration of CE in CDWW management.</div></div>","PeriodicalId":100256,"journal":{"name":"Cleaner Waste Systems","volume":"11 ","pages":"Article 100248"},"PeriodicalIF":0.0,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143637750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Potential use of sewage sludge as fertilizer in organic farming

Cleaner Waste Systems Pub Date : 2025-03-01 DOI: 10.1016/j.clwas.2025.100245

Acharya Balkrishna , Priya Kaushik , Shelly Singh , Priya Agrahari , Brijesh Kumar , Prashant Kumar , Ved Priya Arya

{"title":"Potential use of sewage sludge as fertilizer in organic farming","authors":"Acharya Balkrishna , Priya Kaushik , Shelly Singh , Priya Agrahari , Brijesh Kumar , Prashant Kumar , Ved Priya Arya","doi":"10.1016/j.clwas.2025.100245","DOIUrl":"10.1016/j.clwas.2025.100245","url":null,"abstract":"<div><div>The management and disposal of excess sludge remain critical challenges, primarily due to the high costs involved in its treatment. Treated sewage sludge, derived from wastewater treatment plants (WWTPs), is increasingly recognized as a resource for agricultural use, given its nutrient-rich composition, including nitrogen, phosphorus, potassium, and essential micronutrients required for plant growth. This review article outlines the state of research on the use of sewer sludge as a fertilizer in organic farming, its potential negative effects on soil fertility, moisture retention, and stimulating microbial activity. While these benefits are well-documented, concerns surrounding heavy metal contamination, microbial risks, improper application techniques, and regulatory challenges must be addressed to ensure safe and effective use. Furthermore, this review consolidates findings on various sludge treatment methods, including thermal treatment, anaerobic digestion, and composting, which aim to optimize its agricultural benefits while minimizing associated risks. By synthesizing recent advancements and challenges, this review provides insights into the integrated management of sewage sludge and highlights its implications for sustainable farming practices and ecosystem health.</div></div>","PeriodicalId":100256,"journal":{"name":"Cleaner Waste Systems","volume":"10 ","pages":"Article 100245"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143579890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recycling diatomaceous earth waste: Assessing its physicochemical features, recovery techniques, applications, viability and market opportunities

Cleaner Waste Systems Pub Date : 2025-03-01 DOI: 10.1016/j.clwas.2025.100244

Raquel Viana Pinto Leal, Raimundo Alves Lima Sobrinho, Marcelo Tramontin Souza

{"title":"Recycling diatomaceous earth waste: Assessing its physicochemical features, recovery techniques, applications, viability and market opportunities","authors":"Raquel Viana Pinto Leal, Raimundo Alves Lima Sobrinho, Marcelo Tramontin Souza","doi":"10.1016/j.clwas.2025.100244","DOIUrl":"10.1016/j.clwas.2025.100244","url":null,"abstract":"<div><div>Diatomaceous earth (DE) is widely used in industrial filtration processes, such as in beer, wine, and oil refining, producing significant amounts of diatomaceous earth waste (DEW) as a byproduct. DEW has been explored for various recycling applications, including adsorbents, filters, insecticides, and as a raw material for hydraulic and alkali-activated binders and clay-based ceramics. Despite its potential, the recycling process for DEW remains underdeveloped. This article presents a comprehensive review of the technological, economic, and environmental aspects of DEW recycling, including risk classification by regulatory agencies, alternative recovery methods, and potential pathways for recycling into various products. Given the limited data on DEW generation, an estimation of Brazil’s DEW output is also provided. The recycling potential of DEW is critically assessed through the CPQvA methodology, which follows a structured sequence of analysis: (i) classification (legislation and standards), (ii) potentiality (physical and chemical properties), (iii) quantity and viability (production and disposal concerns), and (iv) application possibilities based on existing literature. To critically analyze the potentiality of DEW, experimental results are also presented for DEW from a Brazilian brewery and compared with global samples. This includes comprehensive chemical, physical, and thermal analyses. Additionally, thermal treatments at 400 °C, 500 °C, and 1000 °C were applied to investigate the removal of volatile compounds and the restoration of its original properties. The results are in-depth discussed and compared with DEW and raw DE data from the literature.</div></div>","PeriodicalId":100256,"journal":{"name":"Cleaner Waste Systems","volume":"10 ","pages":"Article 100244"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143549302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","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 power of centennials and their environmental awareness: Willingness to pay a premium price on the internet for sustainable fashion products

Cleaner Waste Systems Pub Date : 2025-03-01 DOI: 10.1016/j.clwas.2025.100221

Diana Andrea Valencia-Arias , Clara Rosa Martinez-Tavera , Jose Andres Areiza-Padilla , Karla Barajas-Portas , Ivan Veas-González , Mario Andres Manzi-Puertas

{"title":"The power of centennials and their environmental awareness: Willingness to pay a premium price on the internet for sustainable fashion products","authors":"Diana Andrea Valencia-Arias , Clara Rosa Martinez-Tavera , Jose Andres Areiza-Padilla , Karla Barajas-Portas , Ivan Veas-González , Mario Andres Manzi-Puertas","doi":"10.1016/j.clwas.2025.100221","DOIUrl":"10.1016/j.clwas.2025.100221","url":null,"abstract":"<div><div>In developed countries, sustainably manufactured textile products are typically sold at higher prices compared to industrialized textiles. Conversely, in developing countries, the situation is reversed: sustainable and artisanal products are often marketed at lower prices than their industrialized counterparts. This study introduces two significant academic contributions. First, it investigates the factors that contribute to the undervaluation of artisanal and sustainable products by consumers in developing countries, leading to their relatively low market prices. Second, it examines the willingness of the centennial generation in developing countries to pay a premium for sustainable fashion products in online purchases, compared to industrialized textiles. The analysis, based on 318 surveys processed using PLS-SEM, reveals that the values held by this generation—characterized by heightened awareness of environmental and social issues—correlate with a greater willingness to pay higher prices for textiles made from sustainable agro-industrial fibers. These findings underscore the pivotal role of centennials in shaping market trends by fostering increased environmental awareness in the fashion industry, thereby highlighting the importance of aligning product offerings with the ethical and environmental priorities of this influential consumer cohort.</div></div>","PeriodicalId":100256,"journal":{"name":"Cleaner Waste Systems","volume":"10 ","pages":"Article 100221"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143549303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Standalone waste-based cellulose acetate membrane for river water treatment

Cleaner Waste Systems Pub Date : 2025-03-01 DOI: 10.1016/j.clwas.2025.100247

Ibrahim Maina Idriss , Norazanita Shamsuddin , Muhammad Saifullah Abu Bakar , Yusuf Wibisono , Sutarat Thongratkaew , Kajornsak Faungnawakij , Muhammad Roil Bilad

{"title":"Standalone waste-based cellulose acetate membrane for river water treatment","authors":"Ibrahim Maina Idriss , Norazanita Shamsuddin , Muhammad Saifullah Abu Bakar , Yusuf Wibisono , Sutarat Thongratkaew , Kajornsak Faungnawakij , Muhammad Roil Bilad","doi":"10.1016/j.clwas.2025.100247","DOIUrl":"10.1016/j.clwas.2025.100247","url":null,"abstract":"<div><div>Access to clean drinking water is a global challenge, with approximately 2 billion people lacking adequate access due to factors such as pollution, inadequate infrastructure, and socioeconomic inequalities. Natural organic matter (NOM) is a common contaminant in water sources, contributing to coloration, odors, and potential indirect health risks. Membrane filtration is an effective method for removing NOM, with various polymers used for membrane fabrication. Discarded cigarette butts are a significant source of pollution and contribute to environmental degradation. However, few studies have explored the performance of a standalone waste-based cellulose acetate (W-CA) membrane for real surface water treatment, leaving a critical knowledge gap in sustainable membrane technology. This study focuses on utilizing W-CA from cigarette butts, to produce membranes for surface water treatment. A comparison is made with commercial cellulose acetate (C-CA) and polyvinylidene difluoride (PVDF) membranes. Membranes were fabricated via the phase inversion method and characterized for hydrophilicity, morphology, pore size distribution, and surface chemistry. The W-CA membrane exhibited higher hydrophilicity, clean water permeability, and pore density when compared to C-CA and PVDF membranes. It demonstrated high pure water permeability (1315.10 Lm<sup>−2</sup>h<sup>−1</sup>bar<sup>−1</sup>) and effective removal of humic acid representing NOM, achieving a removal rate of 92.77 %. Such high permeability and substantial NOM removal underscore the novelty and practical relevance of employing W-CA for sustainable water treatment applications.</div></div>","PeriodicalId":100256,"journal":{"name":"Cleaner Waste Systems","volume":"10 ","pages":"Article 100247"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143562872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Manure handling certification programs in manuresheds across the United States

Cleaner Waste Systems Pub Date : 2025-03-01 DOI: 10.1016/j.clwas.2025.100241

K. Colton Flynn , Kevin Erb , Robert J. Meinen , Jenifer L. Yost , Mirai Inaoka , Sheri Spiegal

{"title":"Manure handling certification programs in manuresheds across the United States","authors":"K. Colton Flynn , Kevin Erb , Robert J. Meinen , Jenifer L. Yost , Mirai Inaoka , Sheri Spiegal","doi":"10.1016/j.clwas.2025.100241","DOIUrl":"10.1016/j.clwas.2025.100241","url":null,"abstract":"<div><div>Livestock waste can serve as a vital nutrient resource in agricultural production, but manure sources and potential users are often geographically separated due enduring economic forces. The challenges associated with the disconnection has resulted in a need for reform, inspiring the concept of the ‘manureshed.’ Successful manureshed management - optimally reconnecting those with manure surplus with those who can use it sustainably - requires effective education, outreach, and training, yet to date there has been no systematic evaluation of these programs. Our objectives were to enumerate and summarize the manure handling certification programs found throughout the United States (US), investigate relationships between state programs and major manure source locations, and present a case study focused on the efficacy of a market-based and voluntary statewide certification program. Twenty-six of fifty states have manure handling certification programs, the implementation of which are state-specific and highly variable (e.g., who requires training, whether certification is voluntary/mandatory). Certification is prevalent in regions with substantial manure hauling needs. Based on a case study in Wisconsin, providing state-level incentives for obtaining a manure handling certification had lower incidences of manure spills. Therefore, multi-state cooperation and standardization of manure handling certifications would be beneficial to the improvement of regional nutrient imbalances.</div></div>","PeriodicalId":100256,"journal":{"name":"Cleaner Waste Systems","volume":"10 ","pages":"Article 100241"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143519100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Advancing circular economy in road construction: Mechanical performance of second-cycle reclaimed asphalt pavement (R2AP)

Cleaner Waste Systems Pub Date : 2025-03-01 DOI: 10.1016/j.clwas.2025.100249

Mohd Khairul Idham Mohd Satar , Mohd Rosli Hainin , Haryati Yaacob , Norhidayah Abdul Hassan , Mastura Bujang , Suleiman Abdulrahman

{"title":"Advancing circular economy in road construction: Mechanical performance of second-cycle reclaimed asphalt pavement (R2AP)","authors":"Mohd Khairul Idham Mohd Satar , Mohd Rosli Hainin , Haryati Yaacob , Norhidayah Abdul Hassan , Mastura Bujang , Suleiman Abdulrahman","doi":"10.1016/j.clwas.2025.100249","DOIUrl":"10.1016/j.clwas.2025.100249","url":null,"abstract":"<div><div>This study evaluates the performance of recycled asphalt pavement (RAP) and second recycled RAP (R<sup>2</sup>AP) mixtures to promote sustainability in road construction. The study examined 20 %, 40 %, and 60 % RAP in the first cycle, while the second cycle tested 20 %, 40 %, 60 %, and 80 % R<sup>2</sup>AP. Various tests, including dynamic creep, four-point beam fatigue, resilient modulus, and indirect tensile strength, were conducted to assess mechanical performance. Mixtures containing 40 % RAP with 80–100 PEN (B1) bitumen and 60 % RAP with 60–70 PEN (B2) bitumen exhibited the best overall performance, achieving high tensile strength (1587 kPa and 1838.5 kPa, respectively), improved stiffness (resilient modulus of 7810.5 MPa and 8000 MPa at 25°C), and enhanced rutting resistance (lowest permanent strain of 3060 µε and 3500 µε). In the second cycle, 40 % R<sup>2</sup>AP was found optimal for both binders, maintaining satisfactory crack resistance while achieving a resilient modulus of 6000 MPa (B1) and 12,000 MPa (B2) at 25°C. However, fatigue resistance dropped significantly, with an 80 % reduction in fatigue life compared to fresh mixtures, primarily due to increased stiffness from aged bitumen. These findings confirm that optimal RAP and R<sup>2</sup>AP content can improve mechanical performance and reduce reliance on virgin materials, aligning with circular economy principles by minimizing waste, conserving resources, and lowering environmental impact. To address the limitations of the current study, enhance the understanding of R<sup>2</sup>AP and advance its application in road construction, future research will focus on evaluating higher R<sup>2</sup>AP content with rejuvenators, assess its low-temperature performance and moisture resistance, and optimizing mixture design for improved durability and sustainability.</div></div>","PeriodicalId":100256,"journal":{"name":"Cleaner Waste Systems","volume":"10 ","pages":"Article 100249"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143549301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Towards the paradigm of circular economy: The imprint of community factors and perceived benefits on consumers’ recycling signage

Cleaner Waste Systems Pub Date : 2025-03-01 DOI: 10.1016/j.clwas.2025.100243

Amrita Nandy , Md. Minhaj Uddin , Md. Alamgir Hossain

{"title":"Towards the paradigm of circular economy: The imprint of community factors and perceived benefits on consumers’ recycling signage","authors":"Amrita Nandy , Md. Minhaj Uddin , Md. Alamgir Hossain","doi":"10.1016/j.clwas.2025.100243","DOIUrl":"10.1016/j.clwas.2025.100243","url":null,"abstract":"<div><div>Aim of this research is to broaden the application of the theory of planned behavior incorporating community factors and perceived benefits to understand recycling behavior of various stakeholders in Bangladesh. Assuming purposive sampling method, 348 valid samples were collected and later analyzed within structural equation frame using Amos-24. The empirical findings demonstrate that all five variables have substantial impacts on actual recycling behavior, except the consumers’ perceived behavioral control. From practical view, the attained model can be used in policy formulation of similar progressive economies where several community dynamics and beneficial traits draw substantial impact on end recycling behavior. Besides, the finding will guide researchers, business professionals and government to plan fruitful recycling campaigns that will augment circularity in return along with social enhancement. Theoretically, this novel context proposes insights in diverse arena of literature and will lead future researchers towards further enrichment of the aforementioned unique model.</div></div>","PeriodicalId":100256,"journal":{"name":"Cleaner Waste Systems","volume":"10 ","pages":"Article 100243"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143548774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Waste-to-Energy (WtE) for marine transport as a tri-sectorial solution – On-board feasibility implications

Cleaner Waste Systems Pub Date : 2025-02-22 DOI: 10.1016/j.clwas.2025.100215

A.R. Sankar, T.E. Butt

{"title":"Waste-to-Energy (WtE) for marine transport as a tri-sectorial solution – On-board feasibility implications","authors":"A.R. Sankar, T.E. Butt","doi":"10.1016/j.clwas.2025.100215","DOIUrl":"10.1016/j.clwas.2025.100215","url":null,"abstract":"<div><div>Since the Industrial Revolution, cities have been overgrowing, resulting in increased levels of waste, generally ending in landfills that cause air, water, and land pollution. If waste is incinerated on land and diverted from landfills, it can still cause air pollution and acid rain. If waste is incinerated on board large ships, it can help diffuse air pollution more effectively as the ship sails, let alone reduce fossil fuel usage and corresponding carbon. However, limited literature addresses on-board waste-to-energy plants and implications regarding waste logistics. This study produces a numerical model that covers the feasibility of ship-specific energy demand, ship-specific WtE production, and corresponding waste logistics. Secondary data regarding waste types, amounts, and calorific values are used to carry out calculations to inform the model. Nomenclature of ship types and sub-types are considered, out of which one is selected as a use-case. This is an 8500 TEU (Twenty-foot Equivalent Unit) container vessel sailing across the Pacific Ocean for 14 days consecutively, one way. The ship would require 4.15MWh for this trip to meet the non-propulsion energy demand. For this purpose, 44 hard-top twenty-foot waste containers with an on-board WtE plant that can incinerate 3.6 metric tonnes/hour of waste would be required. An account of potential advantages of on-board WtE is also produced in this study as well and further research avenues are identified in terms of, for instance, the contamination of wastes from glass and metal, types and shapes of WtE plants, and which plant would suit best to different ship types and subtypes, leading to initial designs.</div></div>","PeriodicalId":100256,"journal":{"name":"Cleaner Waste Systems","volume":"11 ","pages":"Article 100215"},"PeriodicalIF":0.0,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143679688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental evaluation on the cyclic behavior of reclaimed asphalt pavement (RAP) as railway tracks subballast

Cleaner Waste Systems Pub Date : 2025-02-19 DOI: 10.1016/j.clwas.2025.100240

Seyed Elyas Hashemian , Fereidoon MoghadasNejad , Morteza Esmaeili

{"title":"Experimental evaluation on the cyclic behavior of reclaimed asphalt pavement (RAP) as railway tracks subballast","authors":"Seyed Elyas Hashemian , Fereidoon MoghadasNejad , Morteza Esmaeili","doi":"10.1016/j.clwas.2025.100240","DOIUrl":"10.1016/j.clwas.2025.100240","url":null,"abstract":"<div><div>The repetitive loading in railway tracks and the passage of high-speed trains lead to amplifying structural and vibrational effects at different levels of the railway structure. The damaging compound effects on the ballast and subgrade have motivated the use of suitable and beneficial materials in the railway structure. Reclaimed asphalt pavement (RAP) mixtures are sustainable materials that could address the mentioned issues when used in railway tracks. This study investigated the reclaimed asphalt pavement (RAP) mixtures cyclic behavioral as railway tracks subballast. For this purpose, RAP100 % materials (one layer consisting of 100 % recycled asphalt materials`) were utilized. To determine the optimum subballast layer thickness, 5, 10, 15, and 20 cm thicknesses were examined using the ballast box test (BBT) under 100 thousands cycles of vertical loading. To account for the effects of ballast feature on the subballast, two ballast gradations (fine and coarse) were used in sample preparation. Comparison of settlement, stiffness, and damping of the arrangements showed that the best performance was related to the structure with fine ballast and 20 cm thick RAP100 % subballast, which decreased the track settlement by about 70 % and increased the ballast layer stiffness and damping by 138 % and 233 %, respectively. Although extensive non-structural aspects could be investigated in this issue, it seems that this layer with the mentioned thicknesses could be used as a straightforward constant strategy to enhance track stiffness and vibrational performance of railway tracks, especially high-speed tracks in comparison to common subballast granular layer.</div></div>","PeriodicalId":100256,"journal":{"name":"Cleaner Waste Systems","volume":"10 ","pages":"Article 100240"},"PeriodicalIF":0.0,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143474323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0