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Synergistic mechanism to prepare ultra-lightweight ceramsite using multiple industrial solid wastes Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-05 Jiannan Pei, Xiaolin Pan, Zhongyang Lv, Haiyan Yu, Ganfeng Tu, Feng Jiang
Red mud, fly ash and waste sawdust are bulk solid wastes discharged from the alumina, power and wood processing industries respectively, and their increasing accumulation has brought serious hazards to the ecological environment and huge waste of secondary resources. A novel rapid roasting method was adopted to produce the ultra-lightweight ceramsites (ULC) using red mud, fly ash and waste sawdust
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Study on crack propagation behavior of bridge deck asphalt pavement Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-05 Chundi Si, Hang Cao, Taotao Fan, Yanshun Jia, Xinmiao Wang, Song Li, Zhongyin Xu, Jianling Gu
Crack is a typical distress on bridge deck asphalt pavement (BDAP), which destroys the integrity and continuity of the pavement structure. However, the research on the crack propagation mechanism of BDAP is still limited. In this study, the three-point bending test was performed to investigate the propagation process of cracks in BDAP. Pre-cracks were set in the specimens with different depths (8 mm
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Enhancing structural resilience by using 3D printed complex polymer reinforcement for high damage tolerant structures Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-05 Himanshu Singh, Rushikesh S. Ambekar, Deeptava Das, V. Akhilesh Danam, Nirmal Kumar Katiyar, Bidus Kanti Das, Chandra Sekhar Tiwary, Jayanta Bhattacharya
Conventional cementitious structures demonstrate high compressive strength, yet they are inherently prone to brittleness. The development of materials or building blocks with high damage tolerance is essential for constructing robust buildings and structures, capable of withstanding various forms of damage. In this study, we introduce a novel approach that involves incorporating 3D printed complex
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Pressure drop and heat transfer properties for normal weight and lightweight pervious concrete Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-05 Emad Yaghmour, Mu’ath Abu Qamar, Clay Naito, Muhannad Suleiman, John Fox, Carlos Romero, Sudhakar Neti
This study examines the performance of pervious concrete when used for heating and cooling through forced air conditions. The influence of aggregate type, water-cement ratio, and paste volume on the air flow characteristics were examined through experimental evaluation of 10 mixes. The thermal properties and sensible heat energy stored in the pervious concrete were evaluated by measuring temperature
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A fireproof insulation block with three-dimensional pore structure fabricated using alkali activated steel slag Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-04 Xue Tang, Hengze Zhao, Hongling Ding, Yipei Qi, Ye Li
In an effort to fully harness the potential of steel slag, it has been employed in the production of fire-resistant insulation blocks. A comprehensive investigation was conducted to examine the influence of sodium silicate modulus, water addition, hydrogen peroxide addition, and curing temperature on various properties such as porosity, apparent density, thermal conductivity, and compressive strength
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Mechanical and water resistance properties of strain hardening fiber reinforced gypsum-based composites Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-04 Yichao Wang, Jia Song, Zeen Hu, Yao Zhang, Zhongzheng Guan, Haitao Yang
Gypsum is a kind of environmentally friendly building material with broad prospects. To improve the inherent brittle nature of gypsum, a novel gypsum-based composites with strain hardening and ultra-high ductile characteristics was developed. The basic mechanical performance including tensile, compressive and flexural behavior of the developed composites were systematically studied under normal state
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Synergistic enhancement of industrial grade heavy calcium carbonate, metakaolin, and white Portland cement in white concrete: Performance and microstructure Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-04 Jing liang Xia, Zhengwu Jiang, Wei Zhang, Faguang Leng, Jing Wang, Xueqi Zhao
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Creating a Liquid Transfer Electrical Detector (LTED) to conduct an in-situ, non-destructive examination of the coating loss and weathering of white marble artifacts Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-04 Zheng Zhou, Xin Lan, Julin Wang
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Effect of waterproofing materials on resistivity and pore properties of concrete under insolation and rain Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-04 Yi Li, Peng Huang, Yan Gao, Junlei Sheng, Wei Li, Fuzhou Wang
The poor resistance of concrete to insolation and rain remains a major contributor to waterproofing system failures. This study investigated the effect of waterproofing materials on the resistivity and pore properties of concrete when exposed to heating-cooling cycles. Three types of concrete and four different waterproofing conditions were prepared under heating-cooling cycles. Resistivity and pore
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Behavior of earth mortars at high temperature Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-04 Jordan Tadonbou, Prosper Pliya, Anne-Lise Beaucour, Paulina Faria, Albert Noumowe
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Prediction of durability of reinforced concrete based on hybrid-Bp neural network Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-04 Qiong Feng, Xiaoyang Xie, Penghui Wang, Hongxia Qiao, Yunsheng Zhang, Yunxia Ma
Mix proportion design has a significant influence on the durability of reinforced concrete (RC). Conventional simple equations encounter challenges in effectively guiding the enhancement of durability in the design process. To address this issue, a backpropagation neural network (BPNN) model with a topological structure of 6–16–2 is devised to build a prediction model for RC durability, offering both
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Enhancing fire resistance of masonry structures: The potential of ultra high performance concrete (UHPC) Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-04 L. Estevan, B. Torres, F.J. Baeza, V. Gattulli, S. Ivorra
The potential of ultra high performance concrete (UHPC) for strengthening masonry structures is evaluated in this work, both under normal service conditions and after exposure to high temperatures, as a significant gap has been identified on this topic at the present time. The mechanical properties of UHPC exposed up to 800 °C are analyzed by means of destructive and non-destructive tests, and the
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Investigation on thermal performance of recycled brick aggregate concrete structural walls Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-04 Lihua Zhu, Senning Lei, Tong Li
The thermal properties of recycled brick aggregate concrete (RBC) and recycled brick aggregate concrete structural walls (RBCW) were investigated in this paper. The orthogonal test considering the effect of four factors including the water-cement ratio, sand ratio, water consumption per unit volume, and replacement rate of recycled brick aggregate (RBA) was conducted to study the thermal conductivity
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Study on the evolution of limestone damage and permeability under the tunnel driving stress path Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-04 Chenyu Wang, Dongming Zhang, Dingjie Tan, Jianhu Ye, Xiaolei Wang, Chongyang Wang, Qinglin Li
The tunnel water inrush problems threaten the safety of tunneling. To understand the water inrush mechanism in tunnel tunneling, triaxial water seepage test and COMSOL numerical simulation were applied to study the water seepage law of tunnel surrounding rock according to the tunnel driving stress path. The results show that the permeability changes slowly, increases sharply and decreases sharply,
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A facile method for constructing non-carbonised puffed bamboo with hierarchical pore structure based on self-exploding mechanism Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-04 Tianfang Zhang, Luxi He, Xiangyu Zhao, Jiayi Kang, Bo Wang, Zhenyu Wang, Zhengbin He, Songlin Yi
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Study on physicochemical and anti-corrosion performance of methylsiloxane-based hydrophobic powder modified mortar Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-04 Yajun Lv, Kangjie Zhang, Junfeng Qu, Kui Yin, Chen Yang, Haibing Zheng, Tengfei Xiang
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Chatting about ChatGPT: How does ChatGPT 4.0 perform on the understanding and design of cementitious composite? Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-04 Jingming Cai, Yujin Yuan, Xupeng Sui, Yuanzheng Lin, Ke Zhuang, Yun Xu, Qian Zhang, Neven Ukrainczyk, Tianyu Xie
Over the past year, ChatGPT's initial applications across diverse fields have progressed amid debates on its ethical implications and inherent biases. This paper investigates the comprehension level of ChatGPT 4.0 regarding cementitious composites and initiates preliminary research into its application in cementitious composites,including ordinary Portland cement (OPC) concrete, Engineered Cementitious
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Research on chloride ion permeability resistance of concretes bonded with CFRP sheets under dry-wet cycles Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-04 Yifan Huang, Yongbing Zhang, Qibin Deng, Saqlain Mehmood
Considering the widespread application of carbon fibre-reinforced polymer (CFRP) as a protective material for reinforced concrete (RC) structures, this study focuses on the ability of CFRP laminates with different numbers of layers bonded to the concrete surface to reduce the ingress of chloride ions. Variations in the free chloride concentration distribution in concrete before and after CFRP bonding
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Low-frequency ultrasonic array imaging for detecting concrete structural defects in blind zones Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-04 Jingjing Yang, Guopeng Fan, Yanxun Xiang, Haiyan Zhang, Wenfa Zhu, Hui Zhang, Zaiwei Li
Ultrasonic array (UA) imaging is a promising non-destructive testing (NDT) method that is extensively used for defect detection. Due to the high attenuation characteristics of ultrasonic wave propagation in concrete structures and the directivity of sensors, the total focus method (TFM) easily misses specific defects in blind zones that are far from the sensors or located at a large deflection angle
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Mixture optimization of alkali activated slag concrete containing recycled concrete aggregates and silica fume using response surface method Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-04 Iman Aghajanzadeh, Amir Mohammad Ramezanianpour, Ali Amani, Alireza Habibi
In this study, response surface method (RSM) was used to predict a quadratic model for mechanical and durability properties of alkali activated slag concrete containing silica fume (SF) and recycled coarse and fine aggregates (RCA, RFA). Mechanical, durability, economic, and environmental aspects of the mixes were evaluated. The results showed that substituting natural aggregates with recycled ones
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Influence of defoamer on mechanical performance and pore structure of steam-cured mortar containing polycarboxylate superplasticizer Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-03 Yanyan Hu, Qian Xiong, Tingshu He
To counteract the excessive air entrainment of polycarboxylate superplasticizers (PCEs) and diminish the damage caused by the expansion of air bubbles during steam curing, defoamers were used in this study to solve the problem of high porosity and coarse pore size of the steam-cured mortars containing PCEs. The effects of mineral oil defoamer and polyol defoamer on fluidity, heat of hydration, compressive
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Experimental study on self-healing performance of tunnel lining concrete based on response surface methodology Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-03 Huayun Li, Yangfan Wu, Anxiang Zhou, Chenxi Zhao, Lai Deng, Feng Lu
Concrete self-healing technology can be applied in tunnel, and it can enhance self-healing and durability performance of tunnel lining. In this paper, response surface methodology was used to investigate the effect of cementitious capillary crystalline waterproofing, fly ash and polypropylene fiber as external admixtures on the mechanical and impermeability self-healing performance of concrete; the
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Effect of carbon dots with different sizes on chloride binding of cement Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-03 Huafeng Shan, Shuang E, Roulan Zhao, Yusong Miao, Zuqi Wang, Haijie He, Chuang He
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Analysis of tire-pavement interaction modeling and rolling energy consumption based on finite element simulation Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-03 Qian Liu, Jianzhong Pei, Zhenguo Wang, Dongliang Hu, Guojing Huang, Yejing Meng, Lei Lyu, Fusen Zheng
Energy consumption is caused by the rolling resistance of tires as a vehicle moves forward, which contributes to resource consumption and the greenhouse effect. The objective of this paper is to investigate the variation of tire-pavement rolling energy consumption under different operating condition factors. For this purpose, a rolling finite element dynamic model was developed based on real tire and
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Enhancing permeability and mechanical properties of rubber cement-based materials through surface modification of waste tire rubber powder Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-03 Zhaorong Zhu, Man Zhou, Bing Wang, Xiang Xu
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Structure evolution analysis of asphalt mixtures during compaction based on particle tracking and granular properties Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-03 Chao Sun, Peilong Li, Yuan Xu, Yunfei Ma, Ben Niu
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Tensile performance and cracking characteristics of sustainable textile-reinforced cementitious composites utilizing expanded glass aggregate and fly ash replacement Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-03 Ngoc Hieu Dinh, Huu Hiep Pham, Seung-Hee Kim, Kyoung-Kyu Choi
In this study, sustainable textile-reinforced cementitious composites (TRC) were developed using lightweight expanded glass (EG) aggregates combined with fly ash (FA) as a partial cement replacement. Recycled nylon fibers were incorporated to enhance the cementitious matrix. The tensile performances and cracking characteristics of the developed TRC materials were comprehensively investigated. The key
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Mechanical and hygrothermal properties of hemp-silica bio-composites Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-03 Bamdad Ayati, Armor Gutierrez, Alan Chandler
This research investigated the development of a fast-drying silica-based binder for hemp concrete products with enhanced mechanical and thermal properties. Hemp-silica bio-composites were prepared by mixing hemp shivs with a two-component binder system composed of liquid sodium silicate and tributyl citrate (TBC). Compressive strength, thermal conductivity, moisture buffering value, cyclic moisture
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Long-term experimental study and prediction of the mechanical performance on corroded prestressing steel strands subjected to marine salt spray environment Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-03 Jianxin Peng, Junyi Xiao, Yiming Yang, You Dong, Jianren Zhang
Steel strands subjected to marine salt spray environments are prone to corrosion, which can lead to degradation of their mechanical properties and ultimately affecting the safety of prestressed structures in service. Therefore, one of the most urgent scientific issues for prestressed structures is the assessment of the deterioration caused by long-term corrosion in steel strands. In this study, based
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Natural carbonation of portland cement with synthetic zeolite Y as a supplementary cementitious material Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-03 Atolo A. Tuinukuafe, Melissa M. Mills, Brennan J. Walder, Keith J. Fritzsching, Carlos F. Jové-Colón, Jeffrey W. Bullard, Jonathan Lapeyre, Theresa McEnroe, Edward N. Matteo, Jessica M. Rimsza
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The effect of carbonation accelerator on enhancing the carbonation process and mechanical strength of air-hardening lime mortars Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-03 Mengjun Jia, Yifan Zhao, Xuan Wu, Xiao Ma
Ammonium carbonate was used as the carbonation accelerator for air-hardening lime mortars in this study. Various analytical methods, including XRD, IR, TGA-DSC and SEM were employed to access the phase transformation, degree of carbonation and microstructural features of the lime-based mortars. The paper explores the correlation between the mechanical strength, microstructure of cured lime mortars
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Effects of polycarboxylate superplasticizer and hydroxypropyl methylcellulose on the properties of ferric-rich sulfoaluminate cement Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-03 Xingliang Yao, Dongdong Zhou, Hong Zhang, Shuang Wu, Changzai Ren
Ferric-rich sulfoaluminate cement (FR-SAC) is a promising low-carbon cement and is usually used to prepare precast products due to its short setting time. However, the fast setting of FR-SAC paste also leads to its poor fluidity and workability. Polycarboxylate superplasticizer (PCE) and hydroxypropyl methylcellulose (HPMC) can improve the fluidity and viscosity but may affect other properties of FR-SAC
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Cementitous material based stabilization of soft soils by stabilizer: Feasibility and durabiliy assessment Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-03 Weiwei Niu, Baohe Guo, Kunhong Li, Zhifeng Ren, Yuanyuan Zheng, Jiankun Liu, Hongjie Lin, Xiaoxiong Men
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Study on the performance of alkali-activated phosphorus slag cemented paste backfill material: Effect of activator type and amount Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-03 Shulong Liu, Yiming Wang, Aixiang Wu, Daqing Shi, Minzhe Zhang, Zhuen Ruan, Shaoyong Wang
Effective disposal of phosphorus slag (PS) is crucial for ecosystem protection. Herein, this study proposed that NaSO (SS), NaSiO (NS), NaCO (SC) and NaOH (NH) were performed to prepare alkali-activated phosphorus slag cemented paste backfill material (AAPS-PB). The evolution mechanisms of setting time, rheological behavior and mechanical properties at different contents of various activators were
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Study on the influence of dry ice phase change behavior on the micropore structure and hydration properties of mining grouting materials based on experiments and molecular simulations Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-03 Xiangming Hu, Yuanyuan Song, Qian Zhang, Mingyue Wu, Wei Lu, Haigang Du, Zhenyu Yang
In order to study the temperature-regulating and retarding effect of phase change materials on cement-based materials, we selected dry ice as the phase change material and prepared a phase change thermal storage grouting material (PCGM) using dry ice, cement, and fly ash. Our findings from temperature conduction, scanning electron microscopy (SEM), X-ray diffractometer (XRD), and thermogravimetric
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Multi-step creep tests of notched beams of silver fir (Abies alba) at different initial moisture contents Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-03 Arthur Bontemps, Rostand Moutou Pitti, Eric Fournely, Gaël Godi, Joseph Gril
Silver fir is an important species for French timber engineering industry but its application faces drying issues. This paper presents the results of creep and ramp-loading bending tests on full-scale silver fir notched beams at different initial moisture contents. Initial moisture content showed no discernible impact on instantaneous maximum force, while dynamic compliance appeared to be proportional
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Precast CSA-based concrete tunnel lining segments reinforced with GFRP bars: Challenges and opportunities Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-03 Simone Spagnuolo, Alberto Meda
This research study investigates the potential of using Calcium Sulfoaluminate (CSA) binder as a sustainable alternative to ordinary Portland cement (OPC) in the production of precast concrete tunnel lining (PCTL) segments. The effectiveness of CSA-based concrete, reinforced with Glass Fiber-Reinforced Polymer (GFRP) bars, was examined through an experimental program. Comparative analyses, including
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A multiscale thermo-mechanical coupling model for Fiber-Reinforced Cementitious Composite (FRCC) Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-03 Hongwei Wang, Liang Li, Xiuli Du
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Experimental study on cement-based materials for grouting/replacement of broken rock mass in coal mine Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-03 Junwen Zhang, Shaokang Wu, Yulin Li, Zhixiang Song, Xukai Dong, Yang Zhang, Wenjun Li, Shijie Ma, Yichao Jia, Zhisong Chen, Jitao Zhang, Bing Xiao
In deep high-pressure mines, the surrounding rock of soft broken roadways often faces issues such as poor anchorability, support difficulties, high maintenance costs, and the inadequacy of traditional materials for site requirements. To tackle these challenges, this study focuses on grouting reinforcement in coal mine sites and prefabricated bearing arch form (grouting or replacement) under specific
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Effect of temperature on wet carbonation products of magnesium slag Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-03 Junhao Ye, Songhui Liu, Jingrui Fang, Haibo Zhang, Jianping Zhu, Xuemao Guan
This study focuses on industrial waste magnesium slag (MS) with a high MgO content. It simulates different temperatures of cement kiln exhaust gas during wet carbonation. The temperatures studied were 40 °C, 60 °C, and 80 °C. The aim was to investigate the influence of temperature on the growth and morphology of carbonation products. The results indicate that increasing the temperature leads to the
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A comprehensive study of building materials and bricks for residential construction Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-03 Sai Naveen Jonnala, Debashish Gogoi, Sangjukta Devi, Manjesh Kumar, Chandan Kumar
Residential construction materials have undergone a notable evolution within the construction sector. This paper extensively reviews various types of bricks and building materials commonly employed in house construction, categorizing them into classifications such as typical clay, concrete, fly ash, and new materials such as aerated concrete and recycled bricks. The study thoroughly investigates the
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Study of the active anti-icing properties of modified biological antifreeze protein micro-surfacing Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-03 Yongjun Meng, Yingwei Li, Jing Chen, Zheng Wang, Jun Lai, Chunyu Zhang, Fujia Meng, Pengyu Chen
The accumulation of snow and ice on the surface of roadways can threaten driving safety, which is a major pain point in winter. To address the issue of pavement icing, this paper researched the biological antifreeze protein (AFP) filler, which was then mixed with a portion of mineral powder to create a blend. This blend was further combined with emulsified asphalt modified by a combination of styrene-butadiene
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Upscaling active rheology control to cement mortar with the intervention of an inline magnetic field Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-03 Yiyuan Zhang, Yaxin Tao, Yi Zhang, Kim Van Tittelboom, Karel Lesage, Geert De Schutter
Upscaling the printing ink from cement paste to mortar level is the path people must take to apply active rheology control to smart and advanced digital fabrication, which will decrease the content of binder and reduce carbon footprint. This study investigates the rheological response of cement mortars with carbonyl iron particles (CIPs) by using penetration tests and vane tests. A customized magnetorheological
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Application of miscanthus to enhance plant growth adaptability of bio-based vegetal concrete Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-02 Fan Wu, Xiaoqing Chen, H.J.H. Brouwers
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Enhancing heat modification efficiency of Chinese fir wood through fly ash impregnation: A comprehensive evaluation using time-temperature superposition and cluster analysis Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-02 Tianyi Zhan, Tianle Jiang, Tao Shi, Yulei Gao, Hui Peng, Zhu Li, Jiali Jiang, Jianxiong Lyu
Catalytic degradation via fly ash impregnation (Im) has proven effective in reducing the heat modification (HM) temperature required for wood. To accurately gauge the intensity of HM on wood following Im, the physiomechanical properties of Im-HM treated wood were investigated across various treatment conditions (temperature: 80–140°C, duration: 1–4 h, and fly ash concentration: 2–8%), and compared
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Homogenization of rammed earth walls under changing environmental conditions Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-02 Juan P. Villacreses, Bernardo Caicedo, Eduardo J. Rueda, Laura Ibagón, Johana Acosta
Construction with rammed earth walls is a technique used for the construction of structures that has been increasing and by its nature requires in-depth knowledge due to the exposure of its materials (soil) to environmental factors, such as precipitation and solar radiation. This causes its structural elements to experience humidity fluctuations that affect the soil that constitutes them, resulting
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Fillers to improve the ductility and impermeability of crumb rubber concrete Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-02 Fengming Ren, Jinxu Mo, Qing Wang, Shiyu Tian, Mianheng Lai, Johnny Ching Ming Ho
Crumb rubber concrete (CRC), a type of eco-friendly concrete materials, has attracted pronounced interest in the field of infrastructure construction and waste management. However, special attention should be paid to its permeability since it is an important indicator to determine its service life for building structures, especially in coastal regions. Present study discusses the feasibility of pozzolanic
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Study on mechanical performance and mesoscopic simulation of nano-SiO2 modified recycled aggregate concrete Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-02 Yingwu Zhou, Jiahao Zhuang, Wenzhuo Xu, Wenwei Lin, Feng Xing, Rui Hu
Utilizing nano-SiO (NS) to reinforce the old mortar and the weak interfacial transition zone (ITZ) in recycled coarse aggregate (RCA) is a productive approach to enhance the quality of RCA. Throughout this paper, RCA was immersed in NS solutions with different concentrations (2, 5, 10 and 30 wt%). Subsequently, a systematic evaluation of the crushing index and water absorption of the treated NS modified
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Piezoresistivity and piezopermittivity of cement-based sensors under quasi-static stress and changing moisture Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-02 Jiacheng Zhang, Andrew Heath, Richard J. Ball, Binling Chen, Linzhen Tan, Guisheng Li, Jingbang Pan, Tugce Busra Su-Cadirci, Kevin Paine
Integrated cement-based sensors offer an economic alternative to extrinsic sensors for health monitoring applications in concrete structures due to their high strength to cost ratio, geometrical versatility, low shrinkage, and natural compatibility. Nonetheless, their performance under in-service conditions were in lack of investigations. While the piezoresistivity (change in resistance with stress)
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Utilizing municipal solid waste incineration bottom ash and volcanic tuff to produce geopolymer materials Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-02 Yonghao Yang, Zhihao Luo, Feng Huang, Chao Ni, Jianxun Wu, Binbin Zheng
Large volumes of municipal solid waste incineration bottom ash (MSWIBA) are produced annually in China; however, their improper disposal causes serious ecological and environmental problems. This study investigated the feasibility of using MSWIBA and volcanic tuff to produce geopolymers. The effects of the MSWIBA content, silicon–sodium molar ratio, and alkali equivalent on the uniaxial compressive
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Investigation of dynamic compression properties of lightweight engineered geopolymer composites containing different ceramsites (LW-EGC) Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-02 Zhijun Cheng, Junpeng An, Faping Li, Yiyan Lu, Shan Li
Lightweight engineering geopolymer composites (LW-EGC) can contribute to green building materials products by taking advantage of the advantages of man-made ceramsite and geopolymers. In this paper, an active "sacrifice" method was proposed, which is based on the idea that low elastic modulus ceramsites are preferentially damaged or ruptured during the impact loading process, thus absorbing and dissipating
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Analyzing recycled waste-infused mortars: Preparation and Examination of thermal, mechanical, and chemical characteristics Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-02 Amira Dellagi, Rabeb Ayed, Safa Skouri, Salwa Bouadila, AmenAllah Guizani
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A multi-criterial optimization of low-carbon binders for a sustainable high-strength concrete using TOPSIS Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-02 B. Swathi, R. Vidjeapriya
The objective of this study is to focus on "low carbon binders," given the adverse environmental impacts resulting from the extensive emission of greenhouse gases. In the current context, the term "geopolymer concrete," often referred to as "low carbon binders," is gaining prominence as a means to develop an eco-friendly binding material. Furthermore, this study focuses on creating high-strength geopolymer
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Thermal performance evaluation of silica dip-coated phase change material beads for thermal energy storage in cement-based composites Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-02 Haemin Song, Seyoon Yoon, Jae Eun Oh, Jung-Il Suh
The present study proposed a simple manufacturing method of silica dip-coated PCM beads based on the phase transition characteristics of PCM without using complex processes (e.g., centrifugal extrusion, interfacial polymerization, and suspension cross-link), reagent-grade chemicals (e.g., urea (CHNO), formaldehyde (CHO), etc.), or any porous medium. In addition, the technique in this study incorporated
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Research progress on preparation and application of transparent bamboo: A review Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-01 Wei Wang, Zhigao Liu, Yuxiang Huang
Transparent bamboo (TB) stands as a promising biomass composite material, offering a range of merits including a straightforward preparation, high light transmittance, environmental sustainability, superior mechanical properties, and low thermal conductivity. These characteristics position TB for versatile application spanning energy-efficient building materials, decorative elements, and optoelectronic
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A multi-frequency ultrasonic method for nondestructive detection of setting times and internal structure transition of building materials Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-01 Sungwoo Park, Jeong Hoon Rhee, Seungo Baek, Sukhoon Pyo, Gun Kim
Setting times of building materials are crucial factors in the construction industry, as they directly affect the construction process. Accurate determination of setting times is essential to ensure that construction materials meet design requirements before demolding. This study introduces a new method using longitudinal waves with multi-frequencies to nondestructively determine the setting times
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Design of fluorine-free superhydrophobic coating for fibred architectonic concrete Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-01 Mustapha Boutamart, Salah Rafqah, Amine Hadri, Khalid Nouneh, Salma Zaidi, Hicham Bichara, Samir Briche
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Compression behavior and microscopic damage mechanism of waste rock-tailings matrix composites: Experiments and models Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-01 Tong Gao, Aixiang Wu, Shaoyong Wang, Zhuen Ruan, Chong Chen, Wei Sun
Waste rock-tailings matrix composites used for goaf filling are a significant approach to promote solid waste recycling in mines and achieve safe and environmentally friendly production. In this study, the effects of waste rock content (WRC) and size (WRS) on the compressive mechanical properties of cemented rock-tailings backfill (CRTB) were investigated by experiment. Additionally, PFC3D numerical
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Mechanical properties, microstructure, and environmental assessment of recycled concrete from aggregate after fire Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-01 Mingming Zhang, Lihua Zhu, Shan Gao, Tong Liu, Hanquan Yuan
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Development of low-cost engineered cementitious composites using Yellow River silt and unoiled PVA fiber Constr. Build. Mater. (IF 7.4) Pub Date : 2024-04-01 Hanghui Wang, Jinxia Xu, Yingbin Song, Manlin Hou, Yi Xu
One of the main problems for restricting the extensive practical application of Engineered Cementitious Composite (ECC) is its expensive price due to the incorporation of high-price fine quartz sand and polyvinyl alcohol (PVA) fibers. To address this defect, the replacement with solid waste fine aggregate and locally produced PVA fiber has been proved to be a good choice. This work aims to develop