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Tensile behavior of ultra-high-performance concrete (UHPC) strengthened with fiber reinforced polymer (FRP) grid J. Build. Eng. (IF 6.4) Pub Date : 2024-05-13 Kuanhong Mao, Mohamed Elchalakani, Mingjian He, Qiao Zhou, Hanxuan Liu, Bo Yang
In order to enhance the tensile strength and toughness of Ultra-High Performance Concrete (UHPC) at the macro level, this study developed Fiber-Reinforced Polymer (FRP)-reinforced UHPC composite materials. The steel fibers and FRP grids in UHPC play a reinforcing and toughening effect on UHPC at two different levels. Therefore, this paper examined, evaluated 48 FRP grid-UHPC specimens. The study includes
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Towards sustainable construction: Performance evaluation of slag-cenosphere geopolymers under different NaOH concentrations J. Build. Eng. (IF 6.4) Pub Date : 2024-05-11 Muhammad Usama Salim, Carlos Moro
The incorporation of industrial wastes into construction materials, such as geopolymers, is highly desirable to improve their environmental impact. The choice of source materials, such as slag and cenosphere, and the amount of activator used significantly impact the properties of geopolymers. For instance, including high-reactivity precursors and optimizing activator composition may enhance mechanical
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Influence of geometric shape, pore structure and surface modification of recycled fine aggregate on the rheology behaviour and strength development of mortar J. Build. Eng. (IF 6.4) Pub Date : 2024-05-11 Juntao Ma, Yunlei Wang, Luobing Zhang, Lingxin Zeng, Xiaoqi Wang, Juntao Dang
The complex physical properties of recycled fine aggregate affect the rheological and mechanical properties of mortar, thereby limiting its application in cement-based materials. This paper evaluated the geometric shape and pore structure of natural fine aggregate (NFA), recycled fine aggregate (RFA), and recycled fine aggregate modified by water glass (MRFA), and studied its water absorption and bulk
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Impact characterization of coral aggregate reinforced concrete beam: A 3D numerical study J. Build. Eng. (IF 6.4) Pub Date : 2024-05-11 Zhangyu Wu, Haotian Fan, Jinhua Zhang, Hongfa Yu, Bo Da
Coral aggregate concrete (CAC), an innovative construction material, utilizes abundant marine resources, including coral aggregates and seawater. In the realm of reef engineering, CAC is widely used in structural elements such as reinforced beams and columns. This paper presents a three-dimensional (3D) mesoscale model to assess the impact behavior of coral aggregate reinforced concrete beams (CARCB)
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An experimental study on 3D printed concrete reinforced with fibers recycled from wind turbine blades J. Build. Eng. (IF 6.4) Pub Date : 2024-05-11 Boyu Zhou, Mo Zhang, Guowei Ma
The large-scale retirement and high recycling difficulty of wind turbine blades (WTB) pose great challenges to environment and society. To explore the practical applicability of recycled WTB in 3D printed concrete (3DCP), a systematic experimental study was conducted on the printability and physical-mechanical properties of 3DCP incorporating RWTB fiber. The distribution of RWTB fiber and porosity
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Influence of surface roughness and interfacial agent on the interface bonding characteristics of polyurethane concrete and cement concrete J. Build. Eng. (IF 6.4) Pub Date : 2024-05-10 Okumura Ummin, Yang Li, Kai Li, Yuyuan Chen, Hanyue Jia, Jun Zuo
As a new type of concrete material, polyurethane concrete has excellent physical and mechanical properties which is widely used in the maintenance and reinforcement of damaged areas of concrete pavement. Because of the difference in the performance between polymer concrete and ordinary concrete, it is of great significance to accurately evaluate the bond performance between polymer concrete and ordinary
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A multi-gradient analysis of microscopic void characteristics' influence on the mechanical properties of open-graded friction course bituminous pavement J. Build. Eng. (IF 6.4) Pub Date : 2024-05-10 Junfeng Sun, Haitao Zhang, Mingyang Yu, Ao Sun, Zhaopeng Deng
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Cyclic loading behavior of concrete with thermally-induced damage J. Build. Eng. (IF 6.4) Pub Date : 2024-05-10 Pouria Zare, Shayan Sheikhi Narani, Kianoosh Hatami, Mohsen Abbaspour, Sumi Siddiqua
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Infrared temperature evolution law and thermal effect mechanism of concrete impact failure J. Build. Eng. (IF 6.4) Pub Date : 2024-05-10 Shan Yin, Zhonghui Li, Enyuan Wang, Xueli Li, He Tian, Yue Niu
Concrete impact failure can occur quickly and cause severe failure, which is of great significance for effective monitoring of concrete impact failure. Infrared thermal imaging technology possesses the merits of high sensitivity, noncontact, and nondestructive monitoring, rendering it extensively employed in monitoring the stability of concrete structures. However, the infrared radiation temperature
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Uncertainty quantification and global sensitivity analysis of bearing capacity of push-out specimen considering randomness in bond-slip behaviour J. Build. Eng. (IF 6.4) Pub Date : 2024-05-10 Heng Zhang, Zhongyi Sun, Zhifeng Wu, Bin Huang, Xu Xiang
As an artificial composite material, the uncertainty in mechanical property of concrete significantly impacts the bond-slip behaviour of the shaped steel concrete structure. To investigate the effect of the uncertainty of concrete mechanical properties on the bearing capacity of push-out specimens, based on the data of a small number of push-out test with identical design parameters, the improved Bootstrap
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Effect of foaming characteristics of air entrained agents on mechanical properties and pore structures of cement-based materials in plateau mountainous regions J. Build. Eng. (IF 6.4) Pub Date : 2024-05-10 Xiaojun Zhou, Shiming Bai, Xianliang Zhou, Yingda Zhang, Qingjun Ding
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Time-dependent concrete chloride diffusion coupled with nonlinear chloride binding: An analytical study J. Build. Eng. (IF 6.4) Pub Date : 2024-05-10 Yiyi Huang, Fengling Ji, Zhang-Long Chen, Wei Li, Jingjing Yu
Both the temporal dependence of chloride diffusion coefficient and the effect of nonlinear chloride binding substantially affect the behavior of concrete chloride diffusion. This study develops an exact chloride diffusion solution that accommodates the above two factors by introducing a simplified but reasonably realistic nonlinear chloride binding isotherm. The introduction of this isotherm makes
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Regulating sulfur migration and transformation in low water-binder ratio cementitious system incorporating phosphogypsum aggregate: Environmentally friendly clean materials J. Build. Eng. (IF 6.4) Pub Date : 2024-05-10 Xue Liu, Chiqiu Wu, Wei Lv, Enlai Dong, Shiyuan Fu, Lingyan Zhang, Yuan Feng, Rui Yu
The paper aims to clarify the regulation mechanism of sulfur migration and transformation in a low water-binder ratio system incorporating phosphogypsum aggregate (LWC-PG). Firstly, the combination of -containing adhesive material and phosphate gypsum aggregate can reduce the migration of sulfate ions (SO) in the phosphate gypsum aggregate. The reaction mechanism and macro and micro properties of LWC-PG
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Penetration grouting diffusion and strengthening mechanism of sand layer with crucial grout J. Build. Eng. (IF 6.4) Pub Date : 2024-05-10 Fei Sha, Lanying Zhang, Minglong Zhang, Yuhang Zuo, Hongying Niu
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Heavy metals removal in a graphene engineered concrete-based filter column J. Build. Eng. (IF 6.4) Pub Date : 2024-05-10 Murugan Muthu, Łukasz Sadowski
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Experimental and theoretical evaluation of inclined screws in glued laminated bamboo and timber-concrete composite beams J. Build. Eng. (IF 6.4) Pub Date : 2024-05-10 Hao Du, Rui Xu, Peiyang Liu, Shengnan Yuan, Yang Wei
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Effect of bar diameter on bond performance of helically ribbed GFRP bar to UHPC J. Build. Eng. (IF 6.4) Pub Date : 2024-05-10 Yuan Luo, Peng Liao, Rensheng Pan, Jiayao Zou, Xuan Zhou
The bar diameter is one of the key factor affecting the bond performance between GFRP bar and ultra-high performance concrete (UHPC). However, there is no consensus regarding the effect of bar diameter on the corresponding bond strength in existing studies. An experimental study on centric pull-out test of helically ribbed GFRP bars with nine different diameters was conducted to investigate the effect
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Combined application of CDWs as precursors and aggregates in geopolymer composites: A comprehensive rheological analysis J. Build. Eng. (IF 6.4) Pub Date : 2024-05-10 Obaid Mahmoodi, Hocine Siad, Mohamed Lachemi, Mustafa Şahmaran
The study of rheological characterization of construction and demolition waste (CDW)-based geopolymeric materials has gained interest due to digital innovation in construction and the increased focus on sustainable materials. Understanding the rheological behavior of these materials is essential due to their rapid geopolymeric reaction kinetics and viscosity behavior. This study investigated the impact
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Why sustainable concrete cannot penetrate concrete markets J. Build. Eng. (IF 6.4) Pub Date : 2024-05-10 Lateef N. Assi, Ali Alsalman, Rahman S. Kareem, Kealy Carter, Paul Ziehl, Yasir Alhamadani
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Effect of sodium citrate on compressive strength and microstructure of NaOH-activated slag pastes/mortars exposed to high temperatures J. Build. Eng. (IF 6.4) Pub Date : 2024-05-09 Bo Qu, Peng Zhang, Keming Han, Tianle Liu, Cheng Gong, Fulin Qu, Hao Chen, Ning Li
Fire resistance is a critical consideration in the performance of concrete. This study investigated the impact of sodium citrate on the compressive strength and microstructure of NaOH-activated slag cement at temperatures ranging from 200 to 1000 °C. The findings indicated that the addition of sodium citrate led to an increase in matrix density and a decrease in porosity, ultimately resulting in a
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Strengthening the fiber-cement matrix interface by introducing functional groups on fiber surface J. Build. Eng. (IF 6.4) Pub Date : 2024-05-09 Dezhi Zhao, Hexiang Wang, Qingxin Zhao, Jinghui Zhang, Lili Yuan
Polypropylene (PP) fiber is widely used for reinforcing cement matrix to improve its cracking resistance, but the poor interaction between two materials caused localized cracks along the fiber thus adverse effect on the fiber reinforced composites. Thus, novel methods for strengthening the fiber-cement matrix interface were proposed in this study. Amidoxime and amine functional groups were successfully
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Curing parameters development and long-term performance of ohmic heating cured conductive cementitious composites: A comparative study on fiber fraction J. Build. Eng. (IF 6.4) Pub Date : 2024-05-09 Weichen Tian, Ruisen Li, Zhanlin Zhang, Mingzhi Wang, Yushi Liu, Jian-Xin Lu, Yangyang Jia, Wei Wang
Ohmic heating (OH) curing is a new method for concrete production in cold areas, while the changing regularity for the curing parameters including electric voltage, current, resistivity and curing temperature during the curing process, and the long-term performance evolution law are still unrevealed. In this research, this method was used to fabricate carbon fibers (CFs) reinforced conductive cementitious
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Recycling lithium slag into eco-friendly ultra-high performance concrete: Hydration process, microstructure development, and environmental benefits J. Build. Eng. (IF 6.4) Pub Date : 2024-05-09 Bohan Yang, Yannian Zhang, Weifeng Zhang, Houqi Sun, Qingjie Wang, Dong Han
To ascertain the viability of utilizing lithium slag (LS) in the development of eco-friendly ultra-high performance concrete (UHPC), this paper provides a detailed analysis of the effects of LS on UHPC. Specifically, the hydration and microstructural changes in UHPC containing LS (LS-UHPC) were comprehensively examined. Based on the results of isothermal calorimetry, X-ray diffraction (XRD), thermogravimetric
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A technological review of dew point evaporative cooling: experimental, analytical, numerical and optimization perspectives J. Build. Eng. (IF 6.4) Pub Date : 2024-05-09 Md Shadab Alam, Mohd Nashrul Bin Mohd Zubir PhD, Mohd Ridha Bin Muhamad, Salim Newaz Kazi, Hakan F. Öztop, Shekh Abdullah, Kaleemullah Shaikh
Based on the Maisotensko cycle (M-cycle), dew point evaporative cooling (DPEC) technology is a promising solution to address the growing demand for affordable and sustainable cooling in buildings. This review article thoroughly explores the experimental, theoretical, and optimization methodologies used to assess the effectiveness of a dew point evaporative cooling system. The main findings indicate
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Study on the evolutionary mechanism of shrinkage stress-strain behavior of EVA-modified cement mortar at an early age J. Build. Eng. (IF 6.4) Pub Date : 2024-05-09 Siyu Yang, Shun He, Sifeng Liu
Understanding the early deformation characteristics is important to predict early cracks in cementitious materials and to serve structural engineering. Incorporation of polyethylene-vinyl acetate (EVA) dispersible polymer powder can improve the early cracking of cementitious materials. In this paper, the homogeneity, shrinkage stress-strain behavior and the evolutionary mechanism of EVA-modified cement
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Application of Knowledge Discovery in Databases (KDD) to environmental, economic, and social indicators used in BIM workflow to support sustainable design J. Build. Eng. (IF 6.4) Pub Date : 2024-05-08 Carmen Llatas, Bernardette Soust-Verdaguer, Luis Castro Torres, Daniel Cagigas
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Axial behavior of concrete cylinders retrofitted with a hybrid system of CFRP textile grid and engineered geopolymer composite J. Build. Eng. (IF 6.4) Pub Date : 2024-05-08 Shan Li, Wentao Ma, Yiyan Lu, Bo He, Zhenzhen Liu
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Shaking table tests on seismic performance of a five-story reinforced concrete frame structure with MoS2 sliding bearings and steel dampers J. Build. Eng. (IF 6.4) Pub Date : 2024-05-08 Meng Zhan, Sheliang Wang, Tao Li, Xiuyun Chen, Mengqi Wang
The seismic performance of friction isolated structure is greatly affected by the friction coefficient, and the combination of low friction material and limit device is an available option. Via the Motion State module simulating the friction conditions and the Bouc Wen model describing the restoring characteristic of the steel dampers, a single-degree-of-freedom model was established to investigate
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Enhancing thermal performance of energy storage concrete through MPCM integration: An experimental study J. Build. Eng. (IF 6.4) Pub Date : 2024-05-08 Jiangang Wei, Hanwen Zhang, Wei Zhang, Xiang Liu, Yan Yang
Phase change materials melt and solidify at different temperature ranges called Phase change hysteresis. This phenomenon should be understood and evaluated in order to adequately design energy storage concretes for applications. Although many studies have analyzed the phase change process in pure - phase change materials such as paraffin. However, there is not enough information about the Phase change
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Automated process for generating an air conditioning duct model using the CAD-to-BIM approach J. Build. Eng. (IF 6.4) Pub Date : 2024-05-08 Seonghun Park, Minso Shin, Jun Young Jang, Bonsang Koo, Tae Wan Kim
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Dynamic knowledge graph applications for augmented built environments through “The World Avatar” J. Build. Eng. (IF 6.4) Pub Date : 2024-05-08 Hou Yee Quek, Markus Hofmeister, Simon D. Rihm, Jingya Yan, Jiawei Lai, George Brownbridge, Michael Hillman, Sebastian Mosbach, Wilson Ang, Yi-Kai Tsai, Dan N. Tran, Soon Kang William Tan, Markus Kraft
The proliferation of digital building models in recent years has led to a corresponding rise in specialised, non-interoperable models. These models impede sustainable developments by forming data silos that hinder cross-application data exchange and knowledge discovery processes. Although Semantic Web solutions hold promise in addressing these silos, current approaches primarily focus on developing
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Design, simulation and energy dissipation evaluating of a new lead shear damper J. Build. Eng. (IF 6.4) Pub Date : 2024-05-08 Yongbin Liu, Tao Jiang, Hui Pang, Junwu Dai
This study presents a novel design for a lead shear damper (LSD) that features lead blocks encased in laminated steel and rubber plates, intersected by X-shaped steel sticks. It combines the excellent energy dissipation and fatigue resistance of lead with the uniform yielding capabilities of X-shaped steel sticks along their height. Cyclic loading testing and fatigue tests are conducted in order to
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Enhanced subsurface chloride transport resistance of cement pastes via optimizing CO2 curing time J. Build. Eng. (IF 6.4) Pub Date : 2024-05-07 Jinxin Wei, Tung-Chai Ling
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Immobilization properties and reaction mechanism of municipal solid waste incineration fly ash with alkali activation technology J. Build. Eng. (IF 6.4) Pub Date : 2024-05-07 Baomin Wang, Weigao Ding, Chengcheng Fan, Fei Liu
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Resilience-based seismic design and cyclic behavior of assembled joints between self-compacting concrete-filled rectangular steel tube frame columns and H-shaped steel beams J. Build. Eng. (IF 6.4) Pub Date : 2024-05-07 Chuntao Zhang, Yu Chen
The overall stability of prefabricated steel structures depends significantly on the strong seismic resilience exhibited by the connections between beams and columns. This paper introduces a novel beam–column connection approach, referred to as the welded upper and lower flanges and two diagonal web plates (WULF-TDWP). Unlike conventional methods, this approach replaces bolted connections with butt-welded
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From cement to geopolymers: Performances and sustainability advantages of ambient curing J. Build. Eng. (IF 6.4) Pub Date : 2024-05-07 Changwei Qu, Yongjun Qin, Tao Wang
The production of Portland cement results in substantial carbon emissions. Geopolymers are regarded as highly promising alternative binder materials to cement due to their low energy consumption and excellent mechanical properties. However, it should be noted that the thermal curing process of geopolymers diminishes their low-carbon advantage. In this study, ground granulated blast furnace slag (GGBS)
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Investigation on the anti-carbonation properties of alkali-activated slag concrete: Effect of activator types and dosages J. Build. Eng. (IF 6.4) Pub Date : 2024-05-07 Peng Shi, Devid Falliano, Zhengxian Yang, Giuseppe Carlo Marano, Bruno Briseghella
In this paper, three alkaline activators, namely sodium hydroxide (SH), calcium oxide and sodium carbonate (COSC), calcium hydroxide and sodium sulfate (CHSS), and the influence of different alkali equivalents on the carbonation resistance of alkali-activated slag concrete (AASC) were investigated. By testing the mechanical properties at different carbonation ages of AASC with three types of activators
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Flexural behaviour of one-part fibre-reinforced geopolymer beams J. Build. Eng. (IF 6.4) Pub Date : 2024-05-07 Yujin Yuan, Boyin Ding, Hanyuan Shi, Yinfang Wang, Yuanzheng Lin, Mohamed Elchalakani, Jingming Cai
This research focuses on the structural application of one-part fibre-reinforced geopolymer composite (OP-FRGC), a pioneering low-carbon, high-performance construction material. While extensive studies have been conducted on the basic mechanical properties and mix proportions of OP-FRGC, structural applications remain underexplored. This investigation of the flexural performance of steel-reinforced
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Mechanics and permeability properties of ecological concrete mixed with recycled engineering muck particles J. Build. Eng. (IF 6.4) Pub Date : 2024-05-07 Jinsheng Lei, Yu Yang, Xinghua Chen
The excavation of construction foundation pits, tunnels, channels, and other projects generates a significant volume of engineering muck, posing challenges in management. Prolonged accumulation of this muck can lead to environmental pollution. The effective recycling of this type of construction waste is crucial for the advancement of a circular economy, necessitating immediate attention to research
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Experimental and numerical investigations of seismic performance of stepped beam-column joints with different connection forms J. Build. Eng. (IF 6.4) Pub Date : 2024-05-07 Xin Cheng, Yun Li, Yi An, Jianfei Liu, Ruibin Zhang, Fangfang Liao
The seismic resilience of prefabricated steel structures significantly depends on the design and construction of beam-column joints. To address the challenges related to the installation of prefabricated wall panels and overall system assembly, this study introduces a novel stepped beam-column joint. The effectiveness of different connection configurations on the seismic behavior of the joints was
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Flow characteristics and resistance coefficients of local components of building heat-moisture-oxygen transport pipelines in the Tibetan Plateau J. Build. Eng. (IF 6.4) Pub Date : 2024-05-07 Haowen Wu, Yingying Wang, Yanfeng Liu
The Tibetan Plateau is characterized by low-pressure, cold, hypoxic, and dry ambient conditions. Thus, in addition to heating, buildings in the region need humidification and oxygenation. It is noted here that the existing specifications of the resistance coefficients of the gas flow in the HVAC pipeline do not consider the effect of the variation in air components on the local resistance of the pipeline
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On improved microstructure properties of slag-based UHPC incorporating calcium formate and calcium chloride J. Build. Eng. (IF 6.4) Pub Date : 2024-05-07 Yanchen Oinam, Mandip Dahal, Minwuye Mesfin, Solmoi Park, Hyeong-Ki Kim, Sukhoon Pyo
The study aimed to achieve high strength in slag-based cementless ultra-high performance concrete (UHPC) while investigating the role of calcium formate and calcium chloride as accelerators using advanced characterization and microstructural analysis. The UHPC specimens were evaluated using various techniques, including heat of hydration, thermogravimetric analysis, X-ray diffraction, nuclear magnetic
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Research progress of silane impregnation and its effectiveness in coastal concrete structures: A review J. Build. Eng. (IF 6.4) Pub Date : 2024-05-06 Deng Zewei, Wen Xiaodong, Zhou Ming
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Smart home energy management and active power loss analysis of a residential community J. Build. Eng. (IF 6.4) Pub Date : 2024-05-06 Vikas Deep Juyal, Sandeep Kakran
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Measured performance of energy efficiency measures for zero-energy retrofitting in residential buildings J. Build. Eng. (IF 6.4) Pub Date : 2024-05-06 Zhichao Wang, Hui Shen, Gaofeng Deng, Xiaoyu Liu, Dong Wang
Retrofitting existing buildings to Nearly Zero Energy Buildings (NZEBs) can significantly reduce their energy consumption and environmental impact. However, practitioners and policymakers still face the challenge of providing effective and economic energy efficiency measures (EEMs) to interested parties, due to the limited data on the actual performance of available EEMs. This study addresses the data
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Study on the properties and microstructure of polymer modified waste printed circuit board cement-based materials J. Build. Eng. (IF 6.4) Pub Date : 2024-05-06 Yingli Gao, Tengfei Chen, Yuelin Li, Xiaolei Gu, Zuodong Cheng, Juncai Zhu
Waste printed circuit boards (WPCB) are solid waste, and the current disposal of WPCB in landfills has raised environmental concern. Existing studies used ground WPCB as a replacement of fine aggregate in cement-based materials, but the performances of those materials were notably decreased. This paper aims to improve the performance of WPCB-bearing cementitious materials using styrene butadiene rubber
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A critical comparison of concepts and approaches to social sustainability in the construction industry J. Build. Eng. (IF 6.4) Pub Date : 2024-05-06 Anna Elisabeth Kristoffersen, Carl Peter Leslie Schultz, Aliakbar Kamari
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Numerical and experimental studies on bending behavior of circular aluminium-concrete-steel double skin tubular cross-sections and bending capacity design approach J. Build. Eng. (IF 6.4) Pub Date : 2024-05-06 Xiang Zeng, Chunzhen Ning, Weizhe Zeng, Bin Xu
Considering the excellent corrosion resistance of aluminium alloy, a new-type aluminium-concrete-steel double skin tubular (ACSDST) member is proposed by replacing the outer steel tube of concrete-filled double skin steel tubular members with an aluminium alloy tube to improve structures' corrosion resistance and durability. Until now, no literature has been available on ACSDST cross-section in bending
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Fracture performance of fiber reinforced geopolymer: Synergetic perspective J. Build. Eng. (IF 6.4) Pub Date : 2024-05-06 Muhammed Gümüş, Barış Bayrak, Haluk Görkem Alcan, Gökhan Kaplan, Oğuzhan Çelebi, Abdulkadir Cüneyt Aydın
It is well-known the hybridization of different types of fibers exaggerates the contribution of mono fiber reinforcement on the mechanical and/or fresh properties of the concrete. Despite this fact, very few researchers have pointed out the synergetic effect of hybrid fibers on the fracture response of the geopolymer concretes. Hence, the present work seeks to extend the current knowledge of material
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Influence of bacterial biomineralization conditions on the microstructural characteristics of cement mortar J. Build. Eng. (IF 6.4) Pub Date : 2024-05-06 Seo-Eun Oh, Ji-Su Kim, Sung Kyu Maeng, Seungdae Oh, Sang-Yeop Chung
Bacterial concrete is considered an effective self-healing material due to its capacity to repair damages such as cracks autonomously throughout microbially induced calcium carbonate precipitation (MICP). This study aimed to evaluate the direct incorporation of bacteria into mortar within the framework of concrete damage repairing technol-ogy. , a bacterium capable of surviving in alkaline conditions
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Characterization of self-healing in cement-based materials with a low water-to-cement ratio during subsequent hydration J. Build. Eng. (IF 6.4) Pub Date : 2024-05-06 Liangshun Li, Yue Wang, Peiyao Yu, Siyi Zhao
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Displacement prediction of inclined existing buildings with a raft foundation restored by compaction grouting in clay J. Build. Eng. (IF 6.4) Pub Date : 2024-05-06 Dai Xiaolang, Huang Feng, Wang Guihe, Cui Tengyue, Cui Xuedong, Guo Feng
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Performance evaluation and multi-objective optimization of a hybrid earth-air heat exchanger and building-integrated photovoltaic/thermal system with phase change material and exhaust air heat recovery J. Build. Eng. (IF 6.4) Pub Date : 2024-05-06 Amin Shahsavar, Neda Azimi
The current study explores the feasibility of employing an integrated system comprising an earth-air heat exchanger (EAHE) unit and a photovoltaic/thermal (HPT) system equipped with a phase change material (PCM) to fulfill the heating, cooling, and electrical loads of a building. In this arrangement, ambient air is heated during cold months by passing it through the EAHE and PCM-based HPT systems,
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Frosting characteristics of microchannel heat exchangers: Parametric studies and correlation development J. Build. Eng. (IF 6.4) Pub Date : 2024-05-06 Tong Xiong, Tianyang Zhao, Guoqiang Liu, Lei Zhao, Junfeng Jin, Qiang Gao, Gang Yan
Recently, microchannel heat exchangers (MCHX) have been widely used in heat pump systems due to their high surface-to-volume ratio and high efficiency of heat transfer. However, when the MCHX operates in frosting conditions, its performance is adversely affected. To study the frost formation and distribution characteristics of MCHX, a comprehensive parametric study was performed for the MCHX with a
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Prediction of properties of recycled aggregate concrete using machine learning models: A critical review J. Build. Eng. (IF 6.4) Pub Date : 2024-05-06 Zengfeng Zhao, Yajie Liu, Yanyun Lu, Chenyun Ji, Can Lin, Lei Yao, Ziying Pu, Jorge de Brito
Recycled aggregate concrete (RAC) not only alleviates the shortage of natural aggregates but also promotes the recycling of construction and demolition waste, contributing to sustainable development. Traditional empirical and statistical formulas have limited applicability and perform poorly when dealing with complex relationships. Therefore, machine learning has been widely used to predict the performance
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Analyzing energy consumption due to occupant interaction with manual and automatic window blinds in multiple climates J. Build. Eng. (IF 6.4) Pub Date : 2024-05-06 Sepideh Niknia, Hazem Rashed-Ali
Proper daylight management through automated or manual blind systems can enhance user comfort and energy conservation. Furthermore, the influence of weather conditions, coupled with occupant behavior, significantly impacts energy consumption, rendering weather forecasts invaluable in conducting individual building energy simulations to identify energy-efficient strategies for the future. Also, I wonder
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Investigation of strength and water permeability of sustainable high-performance concrete containing high-volume ground bottom ash blended with fly ash and nano-silica J. Build. Eng. (IF 6.4) Pub Date : 2024-05-06 Harsimranpreet Kaur, Natthawat Kulthaweepisit, Trinh Nhat Ho Tran, Chai Jaturapitakkul, Weerachart Tangchirapat
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Impact of sound-insulated joints in the dynamic behavior of Cross-Laminated Timber structures J. Build. Eng. (IF 6.4) Pub Date : 2024-05-05 Matteo Salvalaggio, Filippo Lorenzoni, Maria Rosa Valluzzi
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Rack-level cooling technologies for data centers – A comprehensive review J. Build. Eng. (IF 6.4) Pub Date : 2024-05-05 Xiuming Li, Mengyi Li, Yingbo Zhang, Zongwei Han, Shengwei Wang
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Generating common spaces through virtual reality telepresence and shared scene synthesis J. Build. Eng. (IF 6.4) Pub Date : 2024-05-04 Maryam Okhovvat, Elham Andaroodi, Morteza Okhovvat
This study aims to create a shared virtual space for remote telepresence, expanding the range of activities beyond traditional 2D screen-based communication. The challenge lies in seamlessly connecting the virtual and physical environments, enabling free movement and interaction. To address this, in the proposed approach advanced techniques in scene understanding, spatial mapping, and virtual environment