Cleaner Materials最新文献

{"title":"Exploring the thermal and mechanical properties of plasters reinforced with argan nut shells: New composites for energy efficiency applications","authors":"Soukaina Fekkar ,&nbsp;Mohamed Touil ,&nbsp;Abdelilah Akouibaa ,&nbsp;Soumia Mordane ,&nbsp;Miloud Rahmoune ,&nbsp;Rachid Saadani","doi":"10.1016/j.clema.2025.100320","DOIUrl":"10.1016/j.clema.2025.100320","url":null,"abstract":"<div><div>The use of natural materials derived from argan nut shell waste in the construction and thermal insulation activities offers several technical, economic and environmental advantages. This work presents an experimental study investigating the impact of adding ground argan nut shells (ANS) on the plaster’s thermomechanical properties. The aim is to design new environmentally-friendly composites, which could be used primarily for energy-efficiency applications in buildings. These new materials were prepared by incorporating different proportions of ANS grains into the mix, ranging from 0 % to 20 %. Two grain sizes were studied: fine particles (d <span><math><mo>&lt;</mo></math></span> 0.5 mm) and coarser particles (2.25 mm <span><math><mo>&lt;</mo></math></span> d <span><math><mo>&lt;</mo></math></span> 4 mm). The EI700 cell, known as the two-box method, was used to determine the thermophysical properties, while the mechanical characterization was carried out using bending tests (H10KL cell). However, the thermophysical tests carried out showed that increasing the particle size and the proportion of ANS in the base matrix considerably improved its thermal properties. Specifically, the density, thermal diffusivity and thermal conductivity were decreased by around 2.92 %, 68.06 % and 40.45 %, respectively. In addition, mechanical tests have shown that this process leads to a reduction in flexural strength, which has dropped from 3.15 MPa to 2.29 MPa, a reduction of 27.30 %. Nonetheless, this reduction remains acceptable according to the European construction standard EN 13279-2. The microscopic study (SEM) revealed perfect compatibility between the aggregates and the plaster granules and justified the results obtained by increasing the porosity of the conventional matrix. This research demonstrates that argan nut shells may be used to reinforce building materials, improving the energy efficiency of buildings while reducing their environmental impact.</div></div>","PeriodicalId":100254,"journal":{"name":"Cleaner Materials","volume":"17 ","pages":"Article 100320"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144242561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development of a sustainable and cost-optimized cementitious composites incorporating local resources and jute fibre","authors":"Md.Atiqur Rahman,&nbsp;Md.Imran Kabir","doi":"10.1016/j.clema.2025.100322","DOIUrl":"10.1016/j.clema.2025.100322","url":null,"abstract":"<div><div>This study aimed to develop a cost-optimized Jute Fibre-Reinforced Cementitious Composites (JFRCCs) utilizing regionally sourced materials, including ordinary Portland cement, fine sand, jute fibre, superplasticizer, and by-products such as fly ash. A Full Factorial Design (2⁴) was employed to investigate four critical mixing parameters: water-to-binder proportion (W/B: 0.26–0.29), fly ash-to-cement proportion (FA/C: 1.2–2.0), sand-to-binder proportion (S/B: 0.3–0.5), and jute fibre content (0.5–1.0 % by volume), with parameter bounds established through preliminary experimental analysis. Thus, sixteen unique mixtures were formulated following a 2⁴ factorial framework, and key mechanical performance metrics–28-day compressive strength (<em>f’_c</em>), strain at peak compressive stress, ultrasonic pulse velocity (UPV), splitting tensile strength (<em>f_st</em>), and material cost—were evaluated. The optimized JFRCCs complied with the minimum structural requirements for residential concrete specified in ACI 318–19. However, carbon footprint quantification across material production, transportation, and mixing phases revealed CO₂ emissions ranging from 458 to 668 kg/m³, underscoring the necessity for emission reduction strategies in sustainable mix design. Statistical analysis via response surface methodology yielded adjusted coefficients of determination (<em>R²_adj</em>) of 88.92 %, 75.53 %, 96.47 %, 94.82 %, and 100.00 % for compressive strength, strain, UPV, splitting tensile strength, and cost models, respectively, validated through ANOVA (<em>p</em> &lt; 0.05) except for strain variability. Parametric sensitivity analysis elucidated the influence of individual factors on mechanical performances and cost-efficiency, while multi-objective desirability optimization identified an optimal mix ratio (W/B = 0.26, FA/C = 1.68, S/B = 0.50, jute content = 0.63 %) with a desirability value of 0.9614. This formulation achieved a balance between target mechanical properties (35 MPa compressive strength, 4 MPa splitting tensile strength) and cost-effectiveness, while maximizing strain capacity and UPV.</div></div>","PeriodicalId":100254,"journal":{"name":"Cleaner Materials","volume":"17 ","pages":"Article 100322"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144220868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Monitoring hydration and strength development of E-waste concrete: A passive sensing approach using piezo sensors","authors":"Gaurav Kumar ,&nbsp;Tushar Bansal ,&nbsp;Dayanand Sharma","doi":"10.1016/j.clema.2025.100326","DOIUrl":"10.1016/j.clema.2025.100326","url":null,"abstract":"<div><div>This study investigates the monitoring of hydration and development of compressive strength at different stages during the curing process of conventional concrete and electronic waste (E-waste) concrete using the electro-mechanical impedance (EMI) technique with embedded piezo sensors (EPS). The experiment was carried out on concrete cube specimens in which the EPS was placed inside the conventional concrete (CC) and E-waste concrete specimens to monitor the changes during hydration and different stages (early age, later age and delayed age) of compressive strength development. Simultaneously, a destructive analysis was performed to identify the compressive strength. Statistical indices, namely root mean square deviation (RMSD) and mean absolute percentage deviation (MAPD) have been established for the quantification of EMI signatures. The results revealed that with the 15% replacement of coarse aggregate with E-waste, the compressive strength of E-waste concrete decreased by 8.15 % after 28 days. The EPS sensor effectively captured the changes during the hydration and different stages of compressive strength development. The RMSD values indicate that the early-age strength development of CC and E-waste concrete is significantly higher than later-age and delayed age, and the same observations are also observed in destructive analysis with the increase in compressive strength at early age, followed by late age and delayed age. Hence, it was concluded that EPS can be used in monitoring the hydration and strength development of concrete in real time.</div></div>","PeriodicalId":100254,"journal":{"name":"Cleaner Materials","volume":"17 ","pages":"Article 100326"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144242563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Engineered char from waste plastic: A review on the physicochemical properties, carbon dioxide uptake, and application in construction materials","authors":"Kushagra Singh,&nbsp;Souradeep Gupta","doi":"10.1016/j.clema.2025.100321","DOIUrl":"10.1016/j.clema.2025.100321","url":null,"abstract":"<div><div>The application of carbon-rich char-based admixtures, including biochar and plastic char, in construction products has received substantial attention from global industries due to their potential to “lock in” carbon for the long term, thus mitigating the climatic impacts of future constructions. Furthermore, a sharp rise in plastic waste generation and uncontrolled landfilling threatens natural ecosystems. Depending on type, plastic waste can be used as fuel, and the generated char (solid residue) can be reintegrated into the construction value chain by utilizing it as a carbon-sequestering admixture in construction materials. This article discusses critical factors, including the synthesis temperature, heating rate, and different activation pathways, for tuning plastic char’s porosity and surface properties, contributing to enhanced carbon fixation and CO₂ uptake. Chemical pyrolysis using alkaline agents produces microporous structure (&lt; 2 nm) with high surface areas (&gt; 1000 m²g⁻¹) and CO₂ uptake, ranging up to 4.6 mmolg⁻¹ while acidic agents produce a higher fraction of mesopores (&gt; 2 nm) with lower surface areas &lt; 1500 m²g⁻¹ and CO₂ uptake capacities (up to 1.8 mmolg⁻¹). The review finds that surface functionalization of plastic char and altering its physicochemical properties improve the engineering properties of construction binders. The locked carbon in the char, complemented by additional CO₂ uptake in the engineered pore and surface sites, can be instrumental in mitigating the embodied carbon of construction products. However, future investigations should study the microstructural interactions of engineered char within construction binders and conduct a holistic life-cycle assessment to fully realize the benefits of using engineered plastic char as a supplementary additive.</div></div>","PeriodicalId":100254,"journal":{"name":"Cleaner Materials","volume":"17 ","pages":"Article 100321"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144178636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cupriavidus necator: A sustainable triple tool for waste reduction, biopolymer production, and cost optimization","authors":"Daiana Nygaard ,&nbsp;Oxana Yashchuk ,&nbsp;Élida Beatriz Hermida","doi":"10.1016/j.clema.2025.100332","DOIUrl":"10.1016/j.clema.2025.100332","url":null,"abstract":"<div><div>Wild type <em>Cupriavidus necator</em> is a sustainable tool to produce high-value biopolymers from industrial wastes, optimizing polymer production cost and reducing pollution.</div><div>This model bacterium is a sustainable microorganism that reduces industrial pollution by using waste materials as feedstock. This approach minimizes environmental impact and promotes effective management of industrial by-products<em>. C. necator</em> is well-studied for its ability to produce high-value biopolymers, particularly polyhydroxyalkanoates (PHAs), which are biodegradable and exhibit desirable mechanical properties and biocompatibility. <em>C. necator</em> produces PHAs from various industries related to human food consumption: commercial food production, biodiesel, alcoholic beverages, sugar, agricultural and forestry plastics and petrochemicals. Utilizing organic waste lowers PHAs production costs, enhancing economic viability. To achieve this goal, several key processes need to be considered. The first key processes include the efficient management of food waste for transport to PHAs production sites and the necessary pre-treatment to convert them into suitable carbon sources for bacteria. The next key processes are fermentation strategies to optimize the biopolymer production and the use of co-substrates to synthesize the desired type of PHA. This makes it possible to tailor the type of PHA produced from waste to different types of applications, ranging from the replacement of non-biodegradable petrochemical plastics to biomedical applications with health benefits.</div><div><em>C. necator</em> is a sustainable tool address environmental challenges, valorize industrial wastes, generate a variety of valuable bioproducts, and enhance the economic feasibility of sustainable polymer production.</div></div>","PeriodicalId":100254,"journal":{"name":"Cleaner Materials","volume":"17 ","pages":"Article 100332"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144579877","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Data driven tensile strength prediction for fiber-reinforced rubberized recycled aggregate concrete using machine learning","authors":"Avijit Pal ,&nbsp;Khondaker Sakil Ahmed ,&nbsp;Nur Yazdani","doi":"10.1016/j.clema.2025.100323","DOIUrl":"10.1016/j.clema.2025.100323","url":null,"abstract":"<div><div>The structural integrity and long-term durability of concrete depend on its tensile strength, which endows the material with the capacity to resist crack initiation and propagation. The tensile strength of concrete is largely influenced by the mixing proportions, the type of aggregates, and the presence of fibers or additives. The incorporation of different ingredients and mixing proportions makes this property nearly unpredictable. To tackle this, this research examined the tensile strength behavior of fiber-reinforced rubberized recycled aggregate concrete (FR³C) using nine machine learning (ML) models. In this study, nine machine learning models—Random Forest, K-Nearest Neighbors, Support Vector Regression, Decision Tree, Artificial Neural Network, AdaBoost, Gradient Boost, CatBoost, and Extreme Gradient Boost—were trained and tested using a dataset of 346 samples representing various mix proportions. The models were applied to predict the tensile strengths of the concrete and to determine the optimal proportions of ingredients. Key input characteristics include water-to-cement ratio (W/C), nominal aggregate size, rubber content, amount of recycled coarse aggregate (RCA), type of fiber and usage, plasticizer use, fly ash (%), and compressive strength. The findings showed that K-Nearest Neighbors performed best in predicting FR³C tensile strength, achieving the lowest mean absolute error MAE (0.001) and root mean squared error (RMSE 0.001) and highest coefficient of determination (R² = 0.999) in test scores. The Shapley Additive Explanations (SHAP) analysis indicated that compressive strength, W/C ratio, and fiber (%) are the most influential parameters affecting the tensile strength of FR³C. Moreover, increased W/C ratios and higher plasticizer content were associated with a 60–72 % reduction in tensile strength. This research may contribute to practical concrete mix design in the construction industry and also in the design process of structural elements particularly for crack width control and mitigation. Therefore, it is feasible to increase the usage of FR³C concrete by precisely forecasting its tensile strength, transforming wastes into resources, and minimizing the adverse environmental effects of construction materials.</div></div>","PeriodicalId":100254,"journal":{"name":"Cleaner Materials","volume":"17 ","pages":"Article 100323"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144242565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluating Torsional Recovery test for interlinkage with deformation-recovery measurement metrics of polymer modified bitumen","authors":"Nazmus Sakib ,&nbsp;Sabrina Islam ,&nbsp;Shahriar Bin Kabir ,&nbsp;Shamima Yasmin ,&nbsp;Md. Mamun Kaysar ,&nbsp;Joy Prakash Chowdhury ,&nbsp;Md. Mahbubur Rahman","doi":"10.1016/j.clema.2025.100309","DOIUrl":"10.1016/j.clema.2025.100309","url":null,"abstract":"<div><div>Elastic recovery of polymer modified bitumen (PMB) is considered an effective parameter to evaluate its capacity to resist permanent deformation through recovering some part of load-related deformation. Conceptually, it is represented as the ratio of recovered strain (measured under zero loading after a fixed duration) to maximum strain (under loading) on a bitumen sample, using various devices and loading types. Recovery tests also indicate the presence of polymer as well as degree of polymerization. Hence, such tests can be useful as rapid quality control and verification tool during field inventory inspections by procuring agencies. Traditional method, that is, ductilometer-based Elastic Recovery (ER-DB) relies on an unwieldy large device, delicate sample preparation process, and variable true strain rate. On the other hand, Multiple Stress Creep Recovery (MSCR) test-based Percent Recovery (%R) utilizes creep-recovery from application of shear-stress on a small bitumen sample for obtaining similar information, but it requires a sophisticated and expensive device. Torsional Recovery (TR), which uses an easily portable, manually operable, quick and inexpensive setup, also relies on shear deformation and angular recovery. In the present study, TR was evaluated for its correlation with these established methods using a total of 15 PMBs, prepared with 5 types of SBS and one base bitumen. The results showed strong linear relationships, with linear regression <span><math><msup><mrow><mi>R</mi></mrow><mrow><mn>2</mn></mrow></msup></math></span> values exceeding 0.85 in many cases, especially for PMBs made with the same polymer. Notably, TR and ER-DB exhibited <span><math><msup><mrow><mi>R</mi></mrow><mrow><mn>2</mn></mrow></msup></math></span> more than 0.90, especially within SBS-type specific cases, while global correlation was found to be 0.76. In addition, it was found that TR can be reliably used for preliminary quantification of SBS-dosage with <span><math><msup><mrow><mi>R</mi></mrow><mrow><mn>2</mn></mrow></msup></math></span> of 0.88. Interestingly, Torsional recovery values show good global correlation with Dynamic Modulus values and associated parameters with <span><math><msup><mrow><mi>R</mi></mrow><mrow><mn>2</mn></mrow></msup></math></span> <span><math><mrow><mo>≥</mo><mn>0</mn><mo>.</mo><mn>8</mn></mrow></math></span>. In fact, SBS dosage, Torsional Recovery and Dynamic Modulus parameters also displayed excellent PMB specific correlation and reasonable global correlation. Other factors and correlations also indicate that TR results align well with existing test methods and hence, can be used for preliminary assessment of PMB quality and quantitative presence of polymer, with particular suitability for site deployment.</div></div>","PeriodicalId":100254,"journal":{"name":"Cleaner Materials","volume":"16 ","pages":"Article 100309"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143844655","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Elaborating the knowledge structure and emerging research in the utilization of metal–organic formwork in engineering applications: A scientometric analysis from 2004 to 2024","authors":"Mohamed H. Alzard,&nbsp;Reem H. Alzard,&nbsp;Mohamed Abdellah","doi":"10.1016/j.clema.2025.100314","DOIUrl":"10.1016/j.clema.2025.100314","url":null,"abstract":"<div><div>Metal–organic frameworks (MOFs) have emerged as versatile materials with broad applications in engineering, from energy storage and environmental remediation to biomedical and sensing technologies. This study combines bibliometric analysis with an in-depth review of selected highly cited papers to examine MOF applications across multiple disciplines. The bibliometric analysis highlights significant research trends, including a dominant focus on energy and environmental engineering, a solid international collaboration, and the rapid growth of interdisciplinary applications. The keyword analysis identifies underexplored areas such as biomedicine, sensing, and unconventional uses like smart textiles and agriculture, highlighting potential directions for future research. Selected papers reveal key findings in fields such as energy storage, chemical engineering, and civil engineering. Applications range from enhancing cementitious materials to improving wastewater treatment and advancing battery technologies. Recommendations emphasize scalable synthesis methods, enhanced testing protocols, and interdisciplinary collaboration to address identified gaps. This study provides a roadmap for advancing MOF research and industrial implementation by aligning bibliometric findings with research recommendations. Future efforts should focus on expanding MOF applications, addressing scalability challenges, and integrating novel testing methods to maximize their potential in solving global engineering challenges.</div></div>","PeriodicalId":100254,"journal":{"name":"Cleaner Materials","volume":"16 ","pages":"Article 100314"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143937355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A review on deterioration Mechanisms, durability prediction and enhancement techniques for recycled aggregate concrete","authors":"Tien-Dung Nguyen ,&nbsp;Rachid Cherif ,&nbsp;Pierre-Yves Mahieux ,&nbsp;Philippe Turcry ,&nbsp;Emilio Bastidas-Arteaga","doi":"10.1016/j.clema.2025.100306","DOIUrl":"10.1016/j.clema.2025.100306","url":null,"abstract":"<div><div>The expanding global construction industry is driven by the need to develop sustainable alternatives to replace natural resources in concrete manufacturing. Reusing construction materials and increasing reuse effectiveness have emerged as popular study areas. Recently, the durability of recycled aggregate concrete (RAC) has drawn attention of numerous researchers worldwide. This review paper discusses the different approaches used to predict the durability of RAC (deterministic, probabilistic, and artificial intelligence). In addition, a critical review of the parameters more influential on the RAC durability performance is presented, including replacement ratio, particle size, chemical admixtures and additives, mixing technique, and curing conditions. Several contradictory results concerning the chloride ingress, carbonation, air and water permeability in the RAC are reported and discussed. The methods used to enhance the characteristics coarse recycled aggregate (CRA) are also categorised and summarised. We have found that complex, non-linear, and multivariable mechanisms control chloride ingress, carbonation, and permeability, rendering conventional modelling techniques inadequate. It is therefore advised to use artificial intelligence methods supported by comprehensive databases to provide precise durability predictions. The performance of RAC is greatly impacted by the adhered mortar (AM) in CRA; its increased porosity and water absorption result in weaker interfacial transition zones (ITZs), decreasing impermeability, and weakening resistance to carbonation and chloride ingress. Therefore, we have also reported that strengthening the microstructure or altering AM characteristics are the main treatment strategies used to increase RAC durability performance. By enhancing RAC performance and lowering the ecological footprint of construction and demolition waste, CRA carbonation stands out among these techniques as a potential technology that offers both technical and environmental benefits.</div></div>","PeriodicalId":100254,"journal":{"name":"Cleaner Materials","volume":"16 ","pages":"Article 100306"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143769049","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}

{"title":"Rheological properties and microscopic characterization of high viscosity asphalt with different warm mixing agents","authors":"Dian Huo ,&nbsp;Hang Diao ,&nbsp;Beian Li ,&nbsp;Yuzhu Liang ,&nbsp;Tianqing Ling ,&nbsp;Wenjing Kuang","doi":"10.1016/j.clema.2025.100308","DOIUrl":"10.1016/j.clema.2025.100308","url":null,"abstract":"<div><div>The pursuit of low carbon and clean sustainable development in road construction is imperative, and warm mix asphalt technology can help the transition from traditional high carbon emission paving materials to cleaner paving materials, thereby promoting the realization of sustainable development of road materials. The objective of this study is to examine the impact patterns of USP (a novel warm-mix additive) and Sasobit, both as individual entities and in combination, on the rheological and conventional characteristics of high viscosity asphalt. Additionally, the study seeks to delve into the mechanisms of action underlying these two distinct categories of warm-mix additives. The results of the research indicate that both warm-mix additives are effective in reducing temperatures when used alone or in combination. When used alone, USP shows significant advantages in low temperature performance, superior to both conventional hot mix asphalt and Sasobit warm-mix asphalt. The high temperature performance of USP modified asphalt is closely related to its dosage. On the other hand, the use of Sasobit alone can improve the high-temperature performance and creep recovery properties of high viscosity asphalt, but results in a decrease in low-temperature performance. When USP is blended with Sasobit, the resulting asphalt exhibits both good high and low temperature performance, with a significant improvement in aging resistance observed in the 5% USP and 2.5% Sasobit group. In conclusion, in order to ensure that warm-mix additives have a beneficial effect on the properties of high viscosity asphalt, the combined use of multiple warm-mix additives can be considered comprehensively to achieve a balance between low carbon emissions and excellent performance.</div></div>","PeriodicalId":100254,"journal":{"name":"Cleaner Materials","volume":"16 ","pages":"Article 100308"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143791141","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}