Sustainable Materials and Technologies最新文献

{"title":"Adaptable self-powered humidity sensor based on a highly permeable, hierarchically fibrous, and chaotically textured sustainable biowaste","authors":"Muhammad Saqib ,&nbsp;Muhammad Muqeet Rehman ,&nbsp;Maryam Khan ,&nbsp;Shahzad Iqbal ,&nbsp;Ahmed Usman Ali ,&nbsp;Ghayas Uddin Siddiqui ,&nbsp;Woo Young Kim","doi":"10.1016/j.susmat.2025.e01374","DOIUrl":"10.1016/j.susmat.2025.e01374","url":null,"abstract":"<div><div>Growing global challenges related to the environmental damage caused by <em>E</em>-wastes could be solved by using sustainable materials with desired electronic properties. This study successfully showed the development of two different electronic devices including a resistive humidity sensor (RHS) and a triboelectric nanogenerator (TENG) by using edible almond seed skin (EASS) biowaste. EASS was preferred due to its biocompatibility, efficient charge transfer, abundant active sites, high permeability, hierarchically fibrous, and chaotically textured surface. Both electronic devices (EASS-RHS and EASS-TENG) were integrated together to develop a self-powered humidity sensor (SPHS). We determined the effect of device size, load resistance, and operating frequency on the overall performance of EASS-TENG. Obtained results of EASS-TENG showed a high stability for more than 500 cycles and other promising experimental results included a maximum open-circuit peak voltage of 60 V, short-circuit current of 3.4 μA, and a maximum instantaneous power of 36.1 μW at a load resistance of 10 MΩ. The integrated humidity sensing system of EASS-SPHS also successfully displayed varying output voltage (4–42 V) with correspondingly varying relative humidity (%RH) levels (29–100 %RH). Our developed EASS-SPHS showed a fast response time of 21 s and an even faster recovery time of only 14 s with high stability. Our EASS-SPHS was a flexible and portable device whose wireless data transmission was ensured in real time by using ESP8266 Wi-Fi module. EASS-SPHS was effectively implemented in multiple applications such as smart home automation switches, energy storage (0.1 μF to 10 μF), and powering microelectronic devices (LEDs).</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"44 ","pages":"Article e01374"},"PeriodicalIF":8.6,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143785685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Balancing surface quality and machining efficiency in recycling process achieved by micro ball-end milling of flawed potassium dihydrogen phosphate optics","authors":"Jian Cheng ,&nbsp;Hongqin Lei ,&nbsp;Linjie Zhao ,&nbsp;Qi Liu ,&nbsp;Youwang Hu ,&nbsp;Mingjun Chen","doi":"10.1016/j.susmat.2025.e01388","DOIUrl":"10.1016/j.susmat.2025.e01388","url":null,"abstract":"<div><div>In the inertial confinement fusion experiments, under high-power laser irradiation, the dimension of micro-flaws on the potassium dihydrogen phosphate (KDP) surface can expand dramatically, leading to the failure of optical components. Conical mitigation pits (CMP) processed by a ball-end cutter are the preferred microstructures to eliminate surface flaws and recycle flawed KDP optics. However, due to the presence of numerous surface flaws, and deliquescent nature of soft-brittle KDP optics, obtaining high-quality and high-efficiency CMP surfaces in dry milling poses an urgent challenge. In this work, based on the finite element model, the optimal cutting edge radius (<em>R</em>_e) of a ball-end cutter is determined to be 1.8 μm in accordance with the maximum tensile stress, stress distribution morphology, and cutting force. Moreover, using a ball-end cutter with the optimal <em>R</em>_e, CMP preparation experiments are conducted to establish the initial population of non-dominated sorting genetic algorithm (NSGA-II). The prediction models of processing time (<em>t</em>) and surface roughness (<em>Sa</em>) based on the NSGA-II are developed, with average relative errors reach 2.5 % and 10.4 %, respectively. Besides, considering the demand of the recycling process under various working conditions, the quality- and efficiency priority solutions are obtained by fast non-dominated sorting algorithm and elite strategy. Under the premise of ensuring the optimal CMP surface quality, the recommended layer milling allowance, feed speed, spindle speed, and tool mark interval are 0.5 μm, 0.4 mm/s ∼ 0.9 mm/s, 4.3 × 10⁴ r/min ∼4.6 × 10⁴ r/min and 5 μm for acceptable repair efficiency. Compared with previous reparative processes, the optimal combination of micro-milling parameters obtained by machine learning reduces the average <em>t</em> for a single conical mitigation pit (with a <em>Sa</em> less than 30 nm) from 360 s to 278 s, achieving a reduction of 23 %. This work can provide technical supports and engineering application values for achieving a high-quality recycling process and increasing the laser damage resistance of flawed KDP optics.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"44 ","pages":"Article e01388"},"PeriodicalIF":8.6,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143777053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Autonomous smart wheelchair: Dual-axis electromagnetic harvesting and IoT-based applications with deep learning AI","authors":"Shoukat Ali Mugheri ,&nbsp;Ali Azam ,&nbsp;Alaeldin M. Tairab ,&nbsp;Touqeer Aslam ,&nbsp;Zutao Zhang ,&nbsp;Ammar Ahmed ,&nbsp;Xiaofeng Xia ,&nbsp;Mansour Abdelrahman ,&nbsp;Chengliang Fan ,&nbsp;Tengfei Liu","doi":"10.1016/j.susmat.2025.e01379","DOIUrl":"10.1016/j.susmat.2025.e01379","url":null,"abstract":"<div><div>Advancements in science and technology have improved wheelchairs, including self-sensing and control, but they still need improvements in energy enhancement. To meet the requirement of continuous power supply and smooth operation, this research proposes a dual-axis electromagnetic energy harvesting system capturing the kinetic energy of wheelchairs moving on the paths. The proposed system consists of three modules: a dual-axis wheel energy-capturing module, an electromagnetic induction module, and a power storage module. The dual-axis wheel energy capture module grabs front wheel movement along two axes, while the electromagnetic induction module converts the wheelchair's motion into electrical energy through the rotation of the magnetic ring against the coil ring. The energy storage module stores the power generated by rotating and turning electromagnetic energy harvesters. Analytical modeling, simulation, and experiments were conducted to investigate the system's performance. The system attained a peak voltage of 20.4 V with an RMS power of 0.238 W for Part A and 1.53 V and an RMS power of 0.63 mW for Part B. Additionally, a deep learning method has been used to assess the speed and turning angle voltage signal data from a generator, achieving training accuracy of 99.35 % and 99.37 %. The proposed system can help disabled victims navigate with continuous power supply without battery depletion and to monitor their health conditions with self-powered sensors.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"44 ","pages":"Article e01379"},"PeriodicalIF":8.6,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High-comfort, ultrathin air-layer nanofiber composite membrane for thermal insulation in complex environments","authors":"Xueting Ding,&nbsp;Huayang Xun,&nbsp;Qiuyun Cao,&nbsp;Xiaoyu Zhang,&nbsp;Hua Zhou,&nbsp;Haitao Niu","doi":"10.1016/j.susmat.2025.e01382","DOIUrl":"10.1016/j.susmat.2025.e01382","url":null,"abstract":"<div><div>Passive thermal management (PTM) materials have the ability of effectively inhibiting heat loss without consuming energy have great significance for thermal-insulting clothing. However, there is still a trade-off between high thermal insulation and small thickness, high durability, and general applicability. In this work, we develop a sustainable strategy for preparation of air-layer nanofiber composite (ALNC) membrane combining the electrospinning and stencil printing techniques. The ALNC membrane is comprised of two superhydrophobic TPU nanofiber membranes bonded by thermal expansion microspheres (TEMs) paste points with a stationary air-layer in the between. The obtained ALNC membrane shows a maximum temperature difference of over 18 °C when the testing stage temperature is 80 °C. It shows high wearing comfort performance, demonstrating a small thermal conductivity of 36.7 mW m⁻¹·K⁻¹, a high moisture permeability of 8.86 kg m⁻² d⁻¹, and a large air permeability of 21.31 mm s⁻¹. In particular, it has high durability against mechanical deformation and high applicability in complex environments (e.g., raining, high humidity, wind blowing). This work can provide fresh perspectives on the design and advancement of thermal-insulating nanofiber products.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"44 ","pages":"Article e01382"},"PeriodicalIF":8.6,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143759690","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advancing circular battery recycling by systematically screening novel deep eutectic solvents for sustainable metal recovery","authors":"Hussein K. Amusa ,&nbsp;Tarek Lemaoui ,&nbsp;Ghaiath Almustafa ,&nbsp;Ahmad S. Darwish ,&nbsp;Fawzi Banat ,&nbsp;Hassan A. Arafat ,&nbsp;Inas M. AlNashef","doi":"10.1016/j.susmat.2025.e01383","DOIUrl":"10.1016/j.susmat.2025.e01383","url":null,"abstract":"<div><div>The need to conserve resources and recycle spent lithium-ion batteries (LIBs) has become more urgent due to their increasing use in portable electronics and electric vehicles. This study proposes a unique approach involving computational screening and experimental validation to develop deep eutectic solvents (DESs) for recycling LIB cathodes. Using the conductor-like screening model for real solvents (COSMO-RS), 675 potential combinations of DESs were analyzed to identify the best DES constituents for the extraction of lithium and cobalt. Based on the screening results, eight promising DESs were synthesized from green and biocompatible materials such as glycine, betaine, carnitine, vitamin C, and citric acid. The synthesized DESs were evaluated for their potential to cause metal leaching from lithium cobalt oxide (LCO) cathodes. The combination of tetrabutylammonium chloride and vitamin C (TVW), as well as glycine and vitamin C (GVW), achieved almost complete recovery (&gt;99 % Li, &gt;98 % Co) in only 2 h at a temperature of 80 °C. The DESs have proven their reusability in seven successful recycling runs, enabling the selective recovery of high-purity lithium and cobalt oxalates. The environmental and economic impact of the DES-based process was evaluated, and its potential as a sustainable and cost-effective solution for large-scale LIB recycling was highlighted. This computational-experimental framework facilitates the discovery of environmentally friendly solvents. The methodology follows the principles of green chemistry and engineering while providing practical solutions for resource conservation and sustainable transformation. This will contribute to the development of recycling technologies and the circular economy in the fast-growing energy storage sector.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"44 ","pages":"Article e01383"},"PeriodicalIF":8.6,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143769308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Chemical linkage in bifunctional chitosan-mercaptobenzothiazole (MBT) coatings for enhanced corrosion prevention and antifouling activities","authors":"Dongkun Yu ,&nbsp;Zheng Li ,&nbsp;Chenxi Li ,&nbsp;Xiao Liang ,&nbsp;Joydeep Dutta ,&nbsp;Jin-Long Yang ,&nbsp;Fei Ye","doi":"10.1016/j.susmat.2025.e01371","DOIUrl":"10.1016/j.susmat.2025.e01371","url":null,"abstract":"<div><div>Marine corrosion is a longstanding issue for underwater materials and structures, where the interlinked challenges of corrosion and biofouling require new approaches to source increasing needs of the marine resources. Herein we introduce environment-friendly chitosan coatings immobilized with corrosion inhibitor of 2-mercaptobenzothiazole (MBT) for active corrosion protection with antifouling properties against marine organisms. The molecular interaction between chitosan and MBT on corrosion resistance and antifouling performance was studied with the coatings where MBT was entrapped, physically associated, or chemically linked to chitosan. The physical association is achieved by the non-covalent π-π stacking between MBT and chitosan-benzophenone-3 (CS-BP-3) copolymer, which improved loading efficiency of MBT and formed a smoother coating. For the first time, MBT was chemically linked to chitosan confirmed by infrared spectroscopy. Electrochemical measurements revealed that both physical association and chemical linkage strategies can enhance the corrosion inhibition dramatically, where the chemical linked coating has a significantly higher corrosion resistance. The corrosion current of the physically associated coatings is a magnitude lower than that of MBT-entrapped coatings, while the coatings formed by chemical linking is even better, about one fifth compared to physically associated coatings. Antifouling activity of these coatings were evaluated against marine mussels (<em>Mytilus coruscus</em>), where chemically linked CS-MBT coating exhibits 10 % settlement after 48 h, compared to 20 % settlement on coatings prepared by physical association. The findings in this work provide a new route to construct coatings that are effective in corrosion inhibition and have long-term antifouling properties.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"44 ","pages":"Article e01371"},"PeriodicalIF":8.6,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143735260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Plasmonic induced Biochar@WO3/Cu composites for boosted photocatalytic antibiotic removal","authors":"Luyao Wang ,&nbsp;Quanquan Shi ,&nbsp;Yanxin Sun ,&nbsp;Qi Xiong ,&nbsp;Guichen Ping","doi":"10.1016/j.susmat.2025.e01376","DOIUrl":"10.1016/j.susmat.2025.e01376","url":null,"abstract":"<div><div>Developing advanced plasmonic photocatalysts is utmost demanded for antibiotics removal in wastewater remediation. In this study, plasmonic copper (Cu) and tungsten trioxide (WO₃) nanosheet decorated with biochar composites were successfully fabricated based on in-situ pyrolysis method. Biochar@WO₃/Cu (BWC) composites exhibited excellent visible-light photocatalytic removal activity of tetracycline, and the degradation efficiency achieved 75 % after 90 min, which is significantly higher than pure biochar and WO₃. Plasmonic Cu nanoparticle combined with biochar synergistically enhanced adsorption of tetracycline and promoted separation of photogenerated electron-hole. Notably, trapping experiments of free radicals confirmed that the generated superoxide radicals •O₂⁻ were responsible species for tetracycline degradation. Additionally, the cycling operation stability and the corresponding were also elucidated. In all, this work reported a novel construction for surface plasma resonance semiconductor photocatalysts for water purification.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"44 ","pages":"Article e01376"},"PeriodicalIF":8.6,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143738633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dual-functional Quercus palustris leaves extract as a sustainable corrosion inhibitor for low-carbon steel and its biomedical potential: Electrochemical, biological, and computational insights","authors":"Rajesh Haldhar ,&nbsp;Chaitany Jayprakash Raorane ,&nbsp;Vishwajeet Bachhar ,&nbsp;Konstantin P. Katin ,&nbsp;Elyor Berdimurodov ,&nbsp;Gamal A. Shazly ,&nbsp;Seong-Cheol Kim","doi":"10.1016/j.susmat.2025.e01378","DOIUrl":"10.1016/j.susmat.2025.e01378","url":null,"abstract":"<div><div>This study investigates the electrochemical and biological properties of <em>Quercus palustris</em> leaves extract (QPLE). The corrosion inhibition performances have been studied using electrochemical and weight-loss analysis for the low-carbon steel (LCS) in acidic media at 298 ± 1.0 K and found its corrosion inhibition efficiency over 90 % at a 1.00 g/L inhibitor concentration. SEM images show differences between corroded and protected surfaces, while FTIR-ATR and UV–visible spectroscopy confirm the formation of a protective film and metal-inhibitor complexes. Water contact angle and computational analysis further support these findings. Biological activities demonstrate strong antibacterial, antibiofilm, and antioxidant properties, with significant growth inhibition zones. Biofilm prevention was assessed using in vitro assays and confocal laser scanning microscopy (CLSM).</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"44 ","pages":"Article e01378"},"PeriodicalIF":8.6,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143747580","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Harnessing the potential of green synthesized Co-Fe-ZnS nanocomposites for successive solar-driven degradation of amoxicillin, hydrogen production, and CO2 reduction: Optimization of reaction parameters by response surface methodology","authors":"Umar Farooq ,&nbsp;Syeda Takmeel Zahra ,&nbsp;Jawayria Najeeb ,&nbsp;Khalida Naseem ,&nbsp;Mohammad Ehtisham Khan ,&nbsp;Wahid Ali ,&nbsp;Mohammad S. Alomar ,&nbsp;Syed Kashif Ali ,&nbsp;Mohamed Hassan ,&nbsp;Wail Al Zoubi ,&nbsp;Abdullateef H. Bashiri","doi":"10.1016/j.susmat.2025.e01377","DOIUrl":"10.1016/j.susmat.2025.e01377","url":null,"abstract":"<div><div>With the growing need for sustainable methods in environmental remediation and clean energy production, green synthesis of nanomaterials offers an eco-friendly approach. In this study, Co-Fe-ZnS nanocomposites were synthesized from the plant extract of <em>Avena fatua</em> for enhanced photocatalytic degradation of Amoxicillin, hydrogen production, and CO₂ reduction, evaluated using Response Surface Methodology (RSM). The prepared nanocomposites were characterized by several customary analytical techniques, such as zeta potential, X-ray diffraction, Scanning electron microscopy, Transmission electron microscopy, X-ray photoelectron spectroscopy, and Fourier transform infrared spectroscopy. After the analyses, prepared nanocomposites were evaluated against the photodegradation of Amoxicillin (AMX). The optimization of reaction parameters was performed by employing RSM. The optimized reaction values were found to be “pH = 11.99, AMX dose = 55.00 mg/L, Co-Fe-ZnS dose = 100.00 mg, time = 34.29 min, and temperature = 20.00 °C with the PD value of 88.96 %”. After that, the evaluation of photocatalytic hydrogen production and CO₂ conversion was executed. The synthesized photocomposites fostered an exceptional value of hydrogen (107.82 mmol g⁻¹ h⁻¹), 6 times higher than the pristine (18.59 mmol g⁻¹ h⁻¹). Moreover, the synthesized nanocomposites displayed a remarkable CO₂ reduction (49.48 μmolg⁻¹ h⁻¹) compared to the pristine (4.97 μmolg⁻¹ h⁻¹). The recyclability tests demonstrated that the photocatalyst retained 79.38 % of its degradation efficiency after five cycles, highlighting its practical reusability. Additionally, the role of reactive oxygen species (ROS) in the photocatalytic process was elucidated, with photogenerated holes (h⁺) identified as the primary contributors to AMX degradation. This study fosters practical insights into utilizing green synthesized materials for their multi-functional applications, offering a promising approach for environmental remediation and renewable energy production.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"44 ","pages":"Article e01377"},"PeriodicalIF":8.6,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143738697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recycling shield soil dreg into green cementitious material for ultra-high performance concrete: Bridging waste management and sustainable construction","authors":"Tiejun Liu ,&nbsp;Jinwang Mao ,&nbsp;Yanhuang Zhu ,&nbsp;Jian Zhou ,&nbsp;Ao Zhou ,&nbsp;Haishan Guo ,&nbsp;Yunfeng Zhang","doi":"10.1016/j.susmat.2025.e01373","DOIUrl":"10.1016/j.susmat.2025.e01373","url":null,"abstract":"<div><div>The large-scale development of urban underground spaces has resulted in hundreds of millions of cubic meters of accumulated shield soil dreg waste, occupying huge amounts of land resources and potentially causing groundwater pollution and soil salinization. In this study, shield soil dreg waste is recycled and activated to substitute cement in ultra-high performance concrete, aiming to promote solid waste management and sustainable construction. The slump, mechanical performance, and autogenous shrinkage of the concrete are investigated through macro-scale tests, and the underlying mechanism is revealed via micro-scale experiments. The incorporation of calcined shield soil dreg reduces flowability and leads to a 10.2 % deterioration in compressive strength of the ultra-high performance concrete while mitigating autogenous shrinkage. The primary reason is due to the low CaO content of shield soil dreg, which limits the formation of calcium silicate hydrate, and its high SiO₂/Al₂O₃ content slows hydration kinetics. The environmental and economic benefits of the concrete are determined via life cycle analysis. Recycling shield soil dreg waste into concrete results in about 35 % reduction in carbon emission and 22 % reduction in energy consumption. According to multi-criteria assessment, the overall performance of the concrete considering economic cost, environmental benefit, as well as physical and mechanical properties increases compared to the pristine concrete, achieving well-balanced economic feasibility, environmental sustainability, and engineering performance. The findings of this study provide an effective approach for recycling shield soil dreg and preparing low-carbon concrete, thus promoting solid waste management and sustainable construction.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"44 ","pages":"Article e01373"},"PeriodicalIF":8.6,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143726277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}