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Effect of curing methods on strength and microstructure development in rice husk ash-based magnesium silicate binders Cement Concrete Comp. (IF 10.8) Pub Date : 2025-05-06
G.V.P. Bhagath Singh, K. Mohan, Y. Sriram, K.V.L. SubramaniamThe environmental impact of Portland cement production has intensified the search for alternative low-carbon cement. Reactive magnesium oxide cement has emerged as a promising option. The current study investigates the hydration behavior, strength development, and phase evolution of MgO and MgO-RHA blends cured under sealed and carbonation conditions. Two RHA sources with differing amorphous content
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Quantitative Analysis of Pore Structures and Microcracks in Self-Healing Concrete after Freeze-Thaw Exposure: An X-Ray Computed Tomography-based Approach Cement Concrete Comp. (IF 10.8) Pub Date : 2025-05-05
Jialuo He, Yong Deng, Xianming ShiX-ray computed tomography (CT) is a valuable tool for investigating the microstructure of concrete. This study introduces a method for analyzing the pore structures and microcracks of self-healing concrete after 300 freeze/thaw (F/T) cycles using CT images with a relatively low resolution of 18.08 μm. Urea-formaldehyde microcapsules alone and in combination with polyvinyl alcohol microfibers were able
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Investigation of fracture property of the fiber-reinforced cementitious composites casted using a novel fiber orientation method Cement Concrete Comp. (IF 10.8) Pub Date : 2025-05-05
Honglei Chang, Zihang Kong, Shuyuan Fan, Yuxi Cai, Feng Guo, Qianping Ran, Hongzhi Zhang, Pan FengFiber-reinforced cementitious composites (FRCC) exhibit enhanced mechanical properties when fibers are uniformly dispersed and aligned parallel to the principal stress direction. This study introduces a novel fiber-ball vibration method to improve fiber orientation in FRCC. The fracture performance of FRCC prepared with this method was evaluated, and the fiber distribution within the matrix was analyzed
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Exploring a feasible inhibitor-coating protective system for corrosion protection of steel in mortar Cement Concrete Comp. (IF 10.8) Pub Date : 2025-05-02
Yongqi Liu, Jinjie Shi -
High early strength alkali-activated mortar from artificial slag blended with high-volume limestone powder: Reaction kinetics and thermodynamic modeling Cement Concrete Comp. (IF 10.8) Pub Date : 2025-05-03
Hamdy A. Abdel-Gawwad, Tamino Hirsch, Christian Lehmann, Dietmar StephanThe European Unions goal of climate neutrality by 2050 and the associated switch in pig iron production from the CO2-intensive blast furnace process to the direct reduction process means that blast furnace slag is becoming increasingly scarce and will no longer be available in some regions in the foreseeable future. This applies to its use in classic cements as well as in alkali-activated binders.
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Mechanochemical activation of basaltic fines Cem. Concr. Res. (IF 10.9) Pub Date : 2025-05-05
Sofiane Amroun, Luca Galli, Mahfoud Tahlaiti, Prannoy SuraneniBasaltic fines (BF) are a promising source of supplementary cementitious materials (SCMs) due to their worldwide availability, low cost, and adequate chemistry. However, they need to be processed to be used as SCMs, as they are otherwise inert. We explore mechanochemical activation (MCA), where raw materials are exposed to high-energy grinding, which increases powder fineness and amorphous content
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Immobilization and leaching behavior of cobalt in alkali-activated fly ash/dehydrated cement paste fine blends Cem. Concr. Res. (IF 10.9) Pub Date : 2025-05-05
Jaeyeon Park, Seongmin Cho, Heongwon Suh, Sungwun Her, Jihwan Yang, Sungchul Bae -
Influence of functional group's grafting position in polycarboxylate superplasticizer molecule on its dispersibility and mechanism Cem. Concr. Res. (IF 10.9) Pub Date : 2025-05-03
Bin Li, Ling Wang, Zhendi Wang, Mingwei Wang -
Excavator 3D pose estimation from point cloud with self‐supervised deep learning Comput. Aided Civ. Infrastruct. Eng. (IF 8.5) Pub Date : 2025-05-03
Mingyu Zhang, Wenkang Guo, Jiawen Zhang, Shuai Han, Heng Li, Hongzhe YuePose estimation of excavators is a fundamental yet challenging task with significant implications for intelligent construction. Traditional methods based on cameras or sensors are often limited by their ability to perceive spatial structures. To address this, 3D light detection and ranging has emerged as a promising paradigm for excavator pose estimation. However, these methods face significant challenges:
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Spatially aware Markov chain‐based deterioration prediction of bridge components using a Graph Transformer Comput. Aided Civ. Infrastruct. Eng. (IF 8.5) Pub Date : 2025-05-03
Shogo Inadomi, Pang‐jo ChunThis study proposes a Markov chain‐based deterioration prediction framework that incorporates spatial relationships between structural components. Despite spatial clustering and propagation of damage, conventional research has left spatial dependencies underexplored. This study constructs graph representations that reflect component adjacency and employs a Graph Transformer to capture both local and
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Mitigating the efflorescence of alkali-activated slag mortars by aluminosilicate-based lightweight fine aggregate Cem. Concr. Res. (IF 10.9) Pub Date : 2025-05-02
Chen Liu, Zhenming Li, Guang YeEfflorescence is a significant aesthetic and structural issue for alkali-activated materials (AAMs). This study addressed this issue at the aggregate level for the first time. The results indicated that substituting sand with aluminosilicate-based lightweight fine aggregate (LWFA) by 20?% or 50?% in volume reduced the efflorescence of alkali-activated slag (AAS) mortars by 14.6?% or 43?%, respectively
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HEMC modifications to tricalcium silicate hydration: Changes in kinetics and nanostructure examined by time-resolved high energy X-ray scattering Cem. Concr. Res. (IF 10.9) Pub Date : 2025-05-02
Elsa Qoku, David Reuschle, Thomas Fitzgibbons, Angus P. Wilkinson, Kimberly E. KurtisHydroxyethyl methyl cellulose ethers (HEMCs) are of increasing interest for their ability to modify rheology and workability of cementitious systems and most importantly with the increase in automation in cement industry. In this paper, the effect of two HEMCs - with similar molecular masses but different degrees of substitution (DS) and molar substitution (MS) - on the hydration of tricalcium silicate
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Automated openBIM-based discrete event simulation modeling for cradle-to-site embodied carbon assessment Autom. Constr. (IF 9.6) Pub Date : 2025-05-02
Yuqing Xu, Xingbo Gong, Xingyu Tao, Helen H.L. Kwok, Charinee Limsawasd, Jack C.P. ChengAssessing cradle-to-site embodied carbon (EC) emissions enables stakeholders to make carbon-reduction decisions early. Discrete event simulation (DES) is useful for analyzing cradle-to-site EC by simulating construction operations. However, developing a DES model for cradle-to-site EC assessment in construction projects is time-consuming and error-prone. Therefore, this paper proposes an automated
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Eccentric loading behavior of square PBL-stiffened double-skin sandwich composite slender columns J. Build. Eng. (IF 6.7) Pub Date : 2025-05-02
Zhongqi Chen, Zhansheng Lin, Zhao Xu, Guotao YangDouble-skin sandwich composite (DSSC) slender columns are now commonly utilized in large structures such as bridge pylons. This paper examines the behavior of PBL-stiffened DSSC slender columns under eccentric loading. Six square PBL-stiffened DSSC slender columns were designed specifically for this purpose. The test results were analyzed to discuss various aspects, including the specimens' failure
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New performance indicator-enabled fragility evaluation of tunnels subjected to combined fault rupture and subsequent seismic excitation Tunn. Undergr. Space Technol. (IF 6.7) Pub Date : 2025-05-02
Chenlong Zhang, Dongming Zhang, Zhongkai Huang, Yiyao Shen, Dongmei Zhang, Hongwei HuangCross-fault tunnels subjected to combined fault rupture and subsequent seismic excitation exhibit complex deformation patterns and damage mechanisms, posing great risk to their long-term operation. To address this critical challenge, a novel performance indicator is proposed and applied to the fragility assessment of tunnel structures, aiming to evaluate the compounded effects of both fault rupture
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Uplift resistance of under-reamed open caisson shafts in sand Tunn. Undergr. Space Technol. (IF 6.7) Pub Date : 2025-05-02
Alexander W. Swallow, Brian B. SheilOpen caisson construction often involves excessive material use to provide sufficient dead weight to counteract buoyancy forces (uplift) in the permanent state. Under-reaming, which enlarges the caisson base to form a continuous annular anchor, offers a means to reduce material usage by increasing uplift resistance. However, uptake of such techniques in practice remains limited due to a lack of research
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Viscos-elastic-plastic analysis of the interaction between the rockbolt-cable combined support and rock mass considering tunnel face effect Tunn. Undergr. Space Technol. (IF 6.7) Pub Date : 2025-05-02
Jiachen Wang, Dingli Zhang, Zhenyu Sun, Song Lu, Jianlin ZhuLarge deformations in tunnels are frequently observed in environments characterized by high geostress and strong viscous rocks. Rockbolts and cables have become a crucial support measure in the control of large deformations, due to their suspension and reinforcement effects. This study proposes an analytical model to investigate the interaction between combined rockbolt-cable support and visco-elastic–plastic
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Preparation and self-healing properties of polyurea-MMT/HDI microcapsules for cement-based materials J. Build. Eng. (IF 6.7) Pub Date : 2025-05-01
Zijian Song, Shiyu Zhang, Jiyong Wang, Zilang Huang, Linhua Jiang, Ming-Zhi Guo, Yunsheng ZhangMicrocapsules with polyurea and flaked-montmorillonite (MMT) as shell materials and hexamethylene diisocyanate (HDI) as core materials for self-healing of concrete structures were successfully prepared via the interfacial polymerization method. In the shell, MMT was embedded into polyurea using Mosaic method. The influences of processing parameters on core fraction, size distribution, morphology, and
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Characterizing the mechanisms and alkali-silica reaction behavior of novel and non-traditional alkali-activated materials Cem. Concr. Res. (IF 10.9) Pub Date : 2025-04-30
Shubham Mishra, Farshad Rajabipour, Jan Olek, Sulapha PeethamparanThis study investigates the Alkali-Silica Reaction (ASR) behavior of non-traditional alkali-activated materials (NAAMs) utilizing unconventional precursors, including calcined clays (CC), volcanic ashes (VA), ground bottom ashes (GBA), and fluidized bed combustion ashes (FBC). Using ASTM-based accelerated and non-accelerated methods, ASR expansions were assessed across aggregates with varying reactivity
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Mechanisms of change in accelerated carbonation progress in cement paste under different relative humidity conditions Cem. Concr. Res. (IF 10.9) Pub Date : 2025-04-30
Luge Cheng, Ryo Kurihara, Takahiro Ohkubo, Ryoma Kitagaki, Atsushi Teramoto, Yuya Suda, Ippei MaruyamaThis study investigated the evolution of water content and carbonation in OPC cement paste under low, intermediate, and high relative humidity (RH) conditions, emphasizing the role of water in accelerated carbonation and microstructural modifications. Under high RH, the carbonation suppressed after 28?days owing to calcium ion accumulation at the surface, precipitating as calcite. This calcite formation
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A novel expansion-tolerant strategy to improve the sulfate resistance of cementitious materials: Guided formation of CaSO4 within superabsorbent polymers (SAPs) pores Cement Concrete Comp. (IF 10.8) Pub Date : 2025-04-30
Han Wang, Tongning Cao, Junlin Lin, Yali Li, Guoxing Sun, Zeyu Lu, Jinyang JiangDuring the sulfate attack process, the expansion of CaSO4 formation in dense cement matrix resulted in the mechanical deterioration of cementitious materials. In this research, a novel expansion-tolerant strategy was proposed to mitigate the expansion pressure by guiding the formation of CaSO4 within the preset pores introduced by superabsorbent polymers (SAPs). The experimental results showed that
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Optimizing BIM drawing element placement through reinforcement learning Autom. Constr. (IF 9.6) Pub Date : 2025-04-30
Yije Kim, Jeongjun Park, Jiyong Oh, Junghyun Bum, Sangyoon ChinBuilding information modeling (BIM) enhances communication in the architecture, engineering, and construction industry and automates drawing generation. However, optimizing the placement of drawing elements remains a challenge. This paper proposes a framework using proximal policy optimization to improve BIM drawing element placement, focusing on floor plan-type drawings in the construction documentation
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Transfer learning for smart construction: Advances and future directions Autom. Constr. (IF 9.6) Pub Date : 2025-04-30
Yu Gao, Xiaoxiao Xu, Tak Wing Yiu, Jiayuan WangTransfer learning has emerged as a powerful tool and rapidly advanced numerous fields with cutting-edge technologies. This paper provides a comprehensive review of transfer learning applications in smart construction, analyzing its utilization to enrich the construction industry's knowledge. A systematic analysis of 366 publications from 2015 to 2024 highlights the growth and importance of transfer
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Pavement thickness evaluation using GPR and fuzzy logic Autom. Constr. (IF 9.6) Pub Date : 2025-04-30
Ali Fares, Tarek Zayed, Nour Faris, Abdul-Mugis Yussif, Sherif AbdelkhalekAccurate pavement thickness evaluation is essential, as insufficient thickness can lead to surface distress and structural failures. However, pavement thickness is often overlooked in condition assessment models. While ground penetrating radar (GPR) offers a useful non-destructive solution, existing models are typically limited to surface layers and require significant user input. To address these
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Optimization of the shotcrete spraying process in blast-based tunnel construction: Insights for enhancing spraying quality Autom. Constr. (IF 9.6) Pub Date : 2025-04-30
Fenghua Liu, Jiajing Liu, Botao Zhong, Jun SunShotcrete is important to form the primary lining of blast-based tunnel construction, but this process heavily relies on operator expertise. Therefore, this research investigates the following research question: How to effectively model and optimize the shotcrete spraying process to construct high-quality primary linings? This paper proposes a spraying process optimization method, comprising three
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Underwater vision-enhanced image segmentation for supporting automated inspection of underwater bridge components Autom. Constr. (IF 9.6) Pub Date : 2025-04-30
Saeed Talamkhani, Kaijian LiuVision-based robotic systems for automated bridge inspection are limited in analyzing underwater inspection images, which present a set of unique visual challenges caused by light scattering, light attenuation, and low-light conditions in underwater environments. To address this limitation, this paper proposes an underwater vision-enhanced image segmentation method: (1) underwater vision-based quality
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Unified and interoperable digital twin models for emergency evacuation using building simulation identity cards Autom. Constr. (IF 9.6) Pub Date : 2025-04-30
Muhammad Farhan Jahangir, Aliakbar Kamari, Carl Peter Leslie SchultzDigital Twin (DT) technology is crucial for effective emergency evacuation planning in buildings, requiring specialized simulation models, from earthquake propagation to evacuation route planning. However, the lack of a unified vocabulary and standardized framework for integrating these models hinders seamless collaboration and limits holistic simulations. This fragmentation poses a significant challenge
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AI-driven enhancement of customer-centric design for improved satisfaction and decision-making Autom. Constr. (IF 9.6) Pub Date : 2025-04-30
Mehrshad Dorri, Soroush Hoseinpour, Mojtaba MaghrebiCustomer-centric design improves satisfaction by actively involving clients in the construction decision-making process. However, current Virtual Reality (VR) methods rely on manual processes, extensive human resources, and costly high-end hardware, restricting accessibility. This study proposes an AI-driven enhancement of customer-centric design in construction through an accessible smartphone-based
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Unified framework for digital twins of bridges Autom. Constr. (IF 9.6) Pub Date : 2025-04-30
Vedhus Hoskere, Delaram Hassanlou, Asad Ur Rahman, Reza Bazrgary, Muhammad Taseer AliDigital twin technology is transforming bridge infrastructure management through virtual replicas that integrate sensor data with intelligent analytics to enable proactive decision-making. At the same time, rapid advances in sensing, artificial intelligence, robotics, and automated bridge modeling offer new opportunities to improve digital twin outcomes. This paper introduces a unified development
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Simulation as a decision-support tool in construction project management: Simphony-Dynamic-as-a-Service Autom. Constr. (IF 9.6) Pub Date : 2025-04-30
Muhtasim Fuad Rafid, Stephen Hague, Simaan AbouRizk, Eleni StrouliaSimulation can play a key role in construction project management, enabling decision-makers to forecast the impact of real-world events, alternative scheduling, and resource-allocation decisions. Such simulation-based forecasting can substantially inform project management but has not yet been widely adopted in the construction industry. This paper describes Simphony-Dynamic-as-a-Service, an advanced
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A methodology for incident detection in sectorized water distribution networks based on pressure and flow data Comput. Aided Civ. Infrastruct. Eng. (IF 8.5) Pub Date : 2025-04-30
Alicia Robles‐Velasco, Luis Onieva, José Guadix, Pablo CortésThis study presents an intelligent system for predicting incident reports (IRs) in sectorized water distribution networks, such as drains in sidewalks, lack of pressure, lack of water, leaks, or others, based on pressure and flow data. Currently, incident detection in the industry is highly inefficient, as it is always performed reactively—only after an incident has already occurred and its negative
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A machine learning-supported rapid classification of building damage following the 2010–2011 Canterbury earthquakes J. Build. Eng. (IF 6.7) Pub Date : 2025-04-30
Lianyan Li, Alice Chang-Richards, Megan Boston, Ken Elwood, Dave BrunsdonThe rapid classification of building damage states or placards after an earthquake is vital for enabling an efficient emergency response and informed decision-making for rehabilitation and recovery purposes. Traditional methods rely heavily on inspector-led on-site surveys, which are often time-consuming, resource-intensive, and susceptible to human error. This study introduces a machine learning-supported
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Multi-agent distributed control method for clean air-conditioning systems:Balancing cleanliness, pressure and energy consumption J. Build. Eng. (IF 6.7) Pub Date : 2025-04-30
Han Meng, Junjie Liu, Wenzhe Shang, Jing Xu, Lizhi JiaPharmaceutical factories require high cleanliness, which leads to a large air supply volume and high energy consumption. To enable an air-handling unit (AHU) to operate with reduced energy consumption while maintaining satisfactory cleanroom cleanliness levels, this paper proposes a multi-agent distributed optimization approach for different objective functions. The method achieves optimal control
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A time-varying model for predicting crack closure in microbial self-healing concrete after incorporating encapsulated agent J. Build. Eng. (IF 6.7) Pub Date : 2025-04-30
Kai Zou, Licheng Wang, Tamon UedaCracks in concrete might undermine structural integrity, accelerate harmful substances to pass through, result in deterioration of concrete matrix and potential reinforcement corrosion, and then increase the maintenance and repair costs of structure. To mitigate these effects, the microbial self-healing concrete (MSC) has emerged as a promising solution among self-healing technologies. This paper presents
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Experimental study and practical constitutive model of bond performance between engineering cementitious composites concrete and reinforcement considering constraint effect under cyclic loading J. Build. Eng. (IF 6.7) Pub Date : 2025-04-30
Lu Yang, Yue Zheng, Shan-Suo Zheng, Xi KangTo study the bond performance between steel bars and engineering cementitious composites (ECC) concrete, 30 groups of ECC concrete eccentric pull-out specimens considering constraint effect were designed and subjected to cyclic loading tests. Subsequently, the effects of cover thickness, stirrup spacing, concrete strength and longitudinal rebar diameter on bond performance were investigated. The bond
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A bottom-up approach of knowledge graph modelling for urban underground public spaces: Insights into public cognition Tunn. Undergr. Space Technol. (IF 6.7) Pub Date : 2025-04-30
Qi Pan, Shiu-Tong Thomas Ng, Fang-Le Peng, Yun-Hao DongUrban underground public spaces are increasingly recognised as crucial for enhancing urban functionality and liveability. However, effectively integrating public cognition into underground public space planning remains challenging. This study addresses this gap by proposing a novel approach integrating natural language processing, knowledge graphs and complex network theory to systematically mine public
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Role of calcium compounds in BOFS on phase evolution and microstructural changes upon high-gravity carbonation Cem. Concr. Res. (IF 10.9) Pub Date : 2025-04-29
Qifeng Song, Slyvester Yew Wang Chai, Tung-Chai LingThe high-gravity (higee) carbonation process has emerged as a promising method for enhancing the carbonation efficiency of basic oxygen furnace slag (BOFS). While this process has proven effective in carbonating BOFS, the underlying mechanisms are not yet fully understood. To investigate this, we selected two types of BOFS: calcium hydroxide-rich (CH-rich) and calcium silicate-rich (CS-rich) BOFS,
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Elucidating the behaviours and mechanisms of enforced carbonation in ferrite Cem. Concr. Res. (IF 10.9) Pub Date : 2025-04-29
Zihan Ma, Yi Jiang, Tiejun Ding, Yong Tao, Faqian Liu, Dapeng Zheng, Jiangshan Li, Peiliang Shen, Chi-Sun PoonIn this study, the carbonation behaviour and mechanisms of the ferrite (C4AF) phase in cement were investigated for the first time through enforced wet carbonation. The results confirm that ferrite carbonation is a spontaneous chemical reaction, the kinetics of which are predominantly controlled by monocarbonate precipitation. The carbonation process involved the initial precipitation of hemi/monocarbonate
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Advanced industrial-grade carbon-fiber-reinforced geopolymer cement supercapacitors for building-integrated energy storage solutions Cement Concrete Comp. (IF 10.8) Pub Date : 2025-04-29
Ji-Hua Zhu, Xiangfei Wang, Hongtao Yu, Shuxia Liu, Chun Pei, Feng XingThe integration of energy storage capabilities into building materials represents a revolutionary advancement in sustainable energy solutions. This study introduces and explores a carbon-fiber-reinforced cementitious supercapacitor, marking a pioneering step in leveraging construction materials for dual structural and energy storage purposes. Employing geopolymer cement (GC) as a solid electrolyte
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An integrated framework for multiple traffic anomalies detection on highways using vehicle trajectories Comput. Aided Civ. Infrastruct. Eng. (IF 8.5) Pub Date : 2025-04-29
Zhiyuan Liu, Anfeng Jiang, Zhirui Wang, Zhen Zhou, Lue Fang, Qixiu Cheng, Ziyuan GuFast and accurate identification of traffic anomalies on highways is of utmost importance. This study presents an integrated framework for multiple traffic anomaly detection on highways using vehicle trajectories. The framework addresses both macroscopic congestion patterns and microscopic driving behaviors, offering a comprehensive solution that simultaneously detects multiple anomalies within a unified
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Issue Information Comput. Aided Civ. Infrastruct. Eng. (IF 8.5) Pub Date : 2025-04-29
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Cover Image, Volume 40, Issue 12 Comput. Aided Civ. Infrastruct. Eng. (IF 8.5) Pub Date : 2025-04-29
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Cover Image, Volume 40, Issue 12 Comput. Aided Civ. Infrastruct. Eng. (IF 8.5) Pub Date : 2025-04-29
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Towards sustainability: Upcycling bypass dust for production of TiO2-grafting alkali-activated cement as cleaner building materials J. Build. Eng. (IF 6.7) Pub Date : 2025-04-29
M. Ramadan, S.M.A. El-Gamal, Fatma. M. Helmy, F.A. SelimA green approach has been implemented for the sustainable disposal of cement bypass (B) as hazardous waste. Slag/bypass-based alkali-activated cements were fabricated and modified with 10?% silica fume (S) and/or diverse dosages of TiO2 nanoparticles (0.5, 1, 2?% T) in the presence of an alkaline activator (6 mass?% NaOH). Nine mixes were subjected to ambient curing for 90 days in addition to hydrothermal
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Hygrothermal analysis of prefabricated fa?ades with active components for minimal invasive renovations J. Build. Eng. (IF 6.7) Pub Date : 2025-04-29
William Monteleone, Riccardo Pinotti, Fabian Ochs, Georgios DermentzisTo achieve a decarbonised building stock by 2050, the renovation rate must be significantly increased by means of cost-effective, minimally invasive, and scalable solutions. Prefabricated fa?ades with integrated active components such as heat pumps or mechanical ventilation with heat recovery (MVHR) offer a promising approach, particularly in multi-family buildings. These solutions enhance the building
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Pseudo-static analytical solution for seismic response of deep tunnels with arbitrary cross-sections considering interface slippage effects under vertically incident SV waves Tunn. Undergr. Space Technol. (IF 6.7) Pub Date : 2025-04-29
Cheng Shi, Lianjin Tao, Peng Ding, Haixiang Zhang, Zhiyun Deng, Xuefei HongTo evaluate the seismic response of deep tunnels, this study proposes an analytical solution for the seismic response of deep tunnels with arbitrary cross-sections based on the extended complex function method and the boundary collocation approach, which realistically accounts for the interface properties between the lining and the surrounding rock and the lining thickness. The accuracy of the computational
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Assessment of particle packing approach for design of low-clinker, LC3 binders at low water-to-solids ratio Cement Concrete Comp. (IF 10.8) Pub Date : 2025-04-28
Connor Szeto, Qingxu Jin, Franco Zunino, Kimberly E. KurtisLimestone calcined clay cements (LC3) are a promising class of low-clinker cementitious binders. While LC3 concrete is typically formulated with a water-to-solid (w/s) ratio of 0.40 or higher, more recent research has explored using a low w/s ratio. Many advanced cementitious systems like ultra-high-performance concrete (UHPC) and engineered cementitious composites (ECC) require lower w/s for optimal
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Advanced 3D-Printed auxetic structures: Mechanical performance evaluation of ECC in rotating rigid configurations Cement Concrete Comp. (IF 10.8) Pub Date : 2025-04-28
Peiying Wang, Xing Ren, Jing Zhang, Panpan Zhu, Jia Kang, Jiajia Zhou, Zhanqi Cheng, Hu FengThis study investigated mechanical properties, including the negative Poisson's ratio (NPR) effect and energy absorption capacity, of single-cell unit rotation rigid body (SCRR) structures fabricated using 3D-printed engineering cementitious composites (ECC). Printable ECC mixtures were optimised for extrudability, buildability, and workability, achieving a compressive strength exceeding 40?MPa, tensile
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Rapid visualization and quantification of water penetration into cement paste using near-infrared hyperspectral imaging Cement Concrete Comp. (IF 10.8) Pub Date : 2025-04-28
Shiyuan Li, Yuya SakaiWater penetration is the leading cause of durability deterioration of cementitious materials, and the rapid in-situ visualization and quantification of water penetration process is important for evaluating water absorption behavior and durability of material. This study proposed a novel method to rapidly visualize and quantify the water penetration into cementitious materials using near-infrared hyperspectral
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UAV-based automated earthwork progress monitoring using deep learning with image inpainting Autom. Constr. (IF 9.6) Pub Date : 2025-04-28
Ahmet Bahaddin Ersoz, Onur PekcanAccurate monitoring of earthwork progress is crucial in construction due to its significant costs and potential delays. Traditional methods are labor-intensive and pose safety risks. Unmanned Aerial Vehicle (UAV) photogrammetry offers a promising alternative. However, the presence of moving machinery can distort earthwork progress in generated point clouds. This paper addresses this challenge by integrating
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Tension-compression anisotropic cohesion model for the interlayer interface of 3D-printed concrete compression specimens J. Build. Eng. (IF 6.7) Pub Date : 2025-04-28
Ning An, Huai Wang, Peijun Wang, Chuanhua Xu, Mei LiuSeveral issues exist with the cohesive model used to simulate the interlayer characteristics of 3D-printed concrete compression specimens: the accuracy of anisotropic simulation is low, cohesion model parameters are difficult to obtain, and the study of these parameters on anisotropic effects is insufficient. This study proposes a tension-compression anisotropic cohesive model to address the limitation
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Utilization of cenospheres as an internal curing material for autogenous shrinkage mitigation of ultra-light-weight concrete J. Build. Eng. (IF 6.7) Pub Date : 2025-04-28
Zhi Ge, Faliang Gao, Jing Zhang, Jingjing Lyu, Hanming Zhang, Honglei Chang, Hongzhi ZhangAutogenous shrinkage of ultra-light-weight concrete (ULWC) can cause severe cracking at early-age reducing the service life of the structure. This paper proposes a method to mitigate autogenous shrinkage of ULWC using pre-saturated cenospheres. ULWCs with densities of 800?kg/m3, 900?kg/m3 and 1000?kg/m3 were prepared using both pre-saturated and pre-dried cenospheres. Low-field nuclear magnetic resonance
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Study on the mechanical and shrinkage performance of POM-UHPC for stone masonry structure reinforcement J. Build. Eng. (IF 6.7) Pub Date : 2025-04-28
Wei Huang, Yaying Huang, Xueli Chen, Yingxiong Wu, Xinyan Zheng, Xiangyu Zheng, Jinggan Shao, Hengchun Zhang, Bin Huang, Fangrong ChenUltra-high performance concrete (UHPC) is a promising cementitious engineering material with superior mechanical properties, which is an ideal potential rehabilitation material for stone masonry structures. However, the significant tensile stress generated from the UHPC overlay shrinkage under stone constraint is likely to have an adverse effect on rehabilitation. In this study, the development of
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Data-driven thermal dynamics recognition and multi-objective optimization for building demand response J. Build. Eng. (IF 6.7) Pub Date : 2025-04-28
Ruoyu Xu, Xiaochen Liu, Guangchun Ruan, Tao Zhang, Xiaohua LiuLarge-scale integration and management of air-conditioning (AC) systems is crucial to the decarbonization of electric power systems. The current challenges lie in the computational accuracy and speed of thermal dynamics recognition and optimization, and there is still a lack of effective methods to deal with the situation of complex indoor spaces and various AC systems. In addition, users often have
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Performance optimization and heavy metal solidification mechanism of salt-alkali activated all-solid waste filling material J. Build. Eng. (IF 6.7) Pub Date : 2025-04-28
Lijuan Su, Jie Li, Siyao Wu, Xiangdong Zhang, Bing LiangThis study prepares a novel green filling material for goaf areas using industrial ground granulated blast-furnace slag (GGBS), fly ash (FA), municipal solid waste incineration fly ash (MSWI FA) as cementitious components, carbide slag (CS), sodium sulfate (Na2SO4) as activators, and coal gangue (CG) as aggregate. Firstly, the influence of GGBS content, ratio of CS to sodium sulfate (CS/Na2SO4) and
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Development of shield waste slurry-based tail grouting material for slurry pressure balance (SPB) tunneling: A geopolymer consolidation method Tunn. Undergr. Space Technol. (IF 6.7) Pub Date : 2025-04-28
Tianhua Wu, Yongtao Gao, Changfu Huang, Yang Liu, Yi Xing, Yuandong Peng, Xiaocheng Qu, Yu ZhouOwing to the substantial production of waste slurry in slurry pressure balance (SPB) shield tunneling, there is an urgent need to recycle SPB shield waste slurry (SWS). In this study, the proposed recycling method involves employing the geopolymer consolidation approach to develop an innovative SWS-based shield tail grouting material comprising SWS, geopolymers, and accelerators. Via the application
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Prediction of rock-breaking forces of tunnel boring machine (TBM) disc cutter based on machine learning methods Tunn. Undergr. Space Technol. (IF 6.7) Pub Date : 2025-04-28
Qi Geng, Yufeng Huang, Jianxun Chen, Xuebin Wang, Weiwei Liu, Yanbin Luo, Zeyu Zhang, Min YeRock-breaking forces are crucial indicators in evaluating the performance of tunnel boring machine (TBM) disc cutters, impacting cutter selection, cutterhead design, and penetration parameters. To develop an accurate and reliable prediction model for the rock-breaking forces of TBM disc cutters, a model database containing 414 typical samples was constructed based on the widely approved full-scale
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A method for forecasting rural residents’ willingness to accept clean heating by categories based on multi-factor weight analysis Energy Build. (IF 6.6) Pub Date : 2025-04-28
Kexin Zhu, Xiaojun Liu, Yifan Qiang, Xi LuoAccurately forecasting rural residents’ acceptance of clean heating is important for actively and steadily promoting clean heating in northern China and taking targeted measures adapted to local conditions. However, existing methods often fail to achieve accurate forecasting results because they do not attempt to analyze rural residents by categories. This study innovatively proposed a classification
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Context-aware smart energy management system: A reinforcement learning and IoT-based framework for enhancing energy efficiency and thermal comfort in sustainable buildings Energy Build. (IF 6.6) Pub Date : 2025-04-28
Badr Saad AlotaibiThis research introduces an innovative smart energy management system utilizing advanced reinforcement learning (RL) and Internet of Things (IoT) technologies. The key novelty of this work lies in its transformative approach to building energy optimization through the development of a context-aware framework that dynamically responds to occupancy patterns and environmental variations, unlike static
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To what extent can polycarboxylate superplasticizers enhance the dispersion characteristics of modified graphene oxide in cement? Insights from ultrasonication and high-shear mixing methods Cem. Concr. Res. (IF 10.9) Pub Date : 2025-04-27
Abdullah Anwar, Xuemei Liu, Lihai Zhang