Article
Construction & Building Technology
Xin Deng, Jun Li, Zhongyuan Lu, Junjin Zhang, Kai Luo, Li Hou, Yunhui Niu, Jun Hu, Kewen He
Summary: The utilization of construction demolition waste as recycled mineral admixtures can reduce cement consumption and the environmental impact on the construction industry. Recycled mineral admixtures based on recycled clay brick powder (CBP) and circulating fluidized bed combustion (CFBC) fly ash were prepared and their effects on the hydration and mechanical performance of mortar were investigated.
JOURNAL OF BUILDING ENGINEERING
(2023)
Article
Construction & Building Technology
Shujun Li, Gaofeng Chen, Zhenhai Xu, Xu Luo, Jianming Gao
Summary: This study investigates the particle size effect of recycled clay brick powder (RCBP) on the pore structure of blended cement pastes. The results show that reducing the particle size of RCBP effectively improves the pore structure.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Review
Construction & Building Technology
Alaa Omar Tanash, Khairunisa Muthusamy, Fadzil Mat Yahaya, Mohamed A. Ismail
Summary: As the demand for cement-based products increases globally, the consumption of finite natural resources and construction waste keeps growing, posing a threat to the environment. Researchers have explored the possibility of using renewable resources as cement substitutes to combat this issue. This review focuses on the use of recycled powder from clay brick, sanitary ware, and concrete waste as binders in concrete production, discussing their physical and chemical features, and concluding that waste with high silica content can enhance the strength and durability of concrete, while suitable treatment methods can improve the mechanical properties of recycled concrete powder.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Construction & Building Technology
Huixia Wu, Chaofeng Liang, Changqing Wang, Zhiming Ma
Summary: This study investigates the properties of green mortar containing different waste concrete-brick powder (WCBP). The results show that WCBP has certain pozzolanic activity and good filler effect, with the waste brick powder having superior activity compared to the waste concrete powder. Mixing WCBP decreases the fluidity and prolongs the setting time of the mortar. Incorporating waste brick powder refines the pore size of the mortar, while mixing waste concrete powder enlarges the pore size. The mechanical strength and water absorption resistance of the mortar generally decrease with WCBP addition, with a linear relationship between the WCBP replacement level and strength of the mortar. Increasing the proportion of waste brick powder content improves the mechanical strength and water absorption resistance of the WCBP mortar. Optimizing the WCBP component, replacement ratio, and particle size can prepare WCBP mortar with satisfactory properties.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Construction & Building Technology
Radhwan Alzeebaree, Arass Omer Mawlod, Alaa Mohammedameen, Anil Nis
Summary: The study shows that replacing fine soil powder with clay brick powder can improve the mechanical and durability performance of AAM specimens, especially performing best at an 80% replacement ratio. The concentration of NaOH solution significantly influences the performance of AAM specimens, with the 12 M concentration showing superior results.
ADVANCES IN STRUCTURAL ENGINEERING
(2021)
Review
Construction & Building Technology
Taohua Ye, Jianzhuang Xiao, Zhenhua Duan, Shuisheng Li
Summary: This paper presents an overview of published articles on geopolymers containing recycled brick powder (RBP) and/or recycled concrete powder (RCP) from 2012 to 2021. The activation process, fundamental properties, and influencing factors are discussed. The carbon emission of geopolymers with a strength beyond 40 MPa is calculated, confirming the feasibility of using RBP and/or RCP as precursors. Potential proportions for sustainable high-performance geopolymers are provided.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Thermodynamics
Xu Luo, Jianming Gao, Xi Liu, Shujun Li, Yasong Zhao
Summary: In this study, recycled clay brick powder (RCBP) was partially used to replace cement in preparing composite cementitious materials. The hydration kinetics and microstructure evolution of the composite cementitious materials were investigated. The results showed that RCBP had little effect on the types of hydration products. However, a pozzolanic reaction between RCBP and Ca(OH)(2) occurred during the later stage of cement hydration. RCBP also promoted cement dispersion and dissolution, provided nucleation sites for C-S-H gel, increased the effective water-binder ratio, and accelerated heat release during cement hydration. Additionally, RCBP increased porosity in the early stage of hydration, but the pozzolanic reaction between RCBP and Ca(OH)(2) in the later stage filled the pores, refined the pore diameter, and improved the pore structure. Furthermore, RCBP influenced the formation and microstructure of C-(A)-S-H gel, and promoted the formation of spherical C-(A)-S-H gel.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Construction & Building Technology
Nfor Clins Wiryikfu, Christian Bopda Fokam, Bienvenu Kenmeugne, Theodore Tchotang
Summary: This study aims to produce usable bricks by adding broken burnt clay bricks of various proportions and grain sizes to clay soil. The results show a decrease in density, water absorption, compressive strength, and flexural strength with an increase in burnt clay content. However, a small addition of burnt clay (20%) can reduce the loss in mechanical properties.
INTERNATIONAL JOURNAL OF PAVEMENT RESEARCH AND TECHNOLOGY
(2021)
Article
Construction & Building Technology
Chengfang Yuan, Weicheng Fu, Ali Raza, Haofei Li
Summary: This paper investigates the use of recycled brick powder (RBP) as a replacement material in concrete production and its impact on the mechanical properties and microstructure of ultra-high-performance concrete (UHPC). The results demonstrate that RBP can weaken the compressive strength of UHPC, but it remains above 140 MPa. Additionally, the inclusion of RBP improves the flexural toughness, tensile strain, and bond strength between steel fiber and matrix, while optimizing the pore structure of UHPC at certain replacement rates.
Article
Construction & Building Technology
Huixia Wu, Jianzhuang Xiao, Chaofeng Liang, Zhiming Ma
Summary: The use of recycled brick aggregate and powder in cementitious materials can improve durability and reduce permeability.
Article
Construction & Building Technology
Chao Zhang, Zijian Jia, Zhe Luo, Zhicong Deng, Zhibin Wang, Chun Chen, Yamei Zhang
Summary: This study investigates the use of recycled brick powder (BP) as a supplementary cementitious material to prepare low carbon 3D printing concrete (3DPC). The results show that the grinding time affects the characteristics of BP, and BP with smaller average particle size has a minor impact on the properties of 3DPC. This research provides guidance for applying recycled BP in the preparation of low carbon 3DPC.
JOURNAL OF SUSTAINABLE CEMENT-BASED MATERIALS
(2023)
Article
Construction & Building Technology
Ziming He, Aiqin Shen, Hansong Wu, Wenzhen Wang, Lusheng Wang, Chao Yao, Jinhua Wu
Summary: Grinding brick waste into recycled brick powder (RBP) and using it instead of cement to produce sustainable construction materials is considered feasible and can improve the properties of cement-based materials. RBP is rich in SiO2, Al2O3, Fe2O3 and has pozzolanic activity, making it a potential replacement for Portland cement.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Environmental Sciences
Ertugrul Erdogmus, Ali Yaras, Mucahit Sutcu, Osman Gencel
Summary: This study investigated the impact of marble cutting waste on brick properties, finding that waste with a smaller particle size can improve compressive strength while also increasing thermal conductivity of the bricks. Variance analysis determined the effects of particle size, firing temperature, and waste concentration on brick properties.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Construction & Building Technology
Xin Deng, Jun Li, Zhongyuan Lu, Junjin Zhang, Kai Luo, Yunhui Niu, Jun Hu, Kewen He
Summary: Recycled aggregate (RA) is widely used in China for construction and demolition waste treatment. However, the production of finer powders during the RA preparation process reduces the quality of RA. Separating and individually using different sizes of recycled concrete powders can improve the performance of RAs and their potential applications.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Construction & Building Technology
Shujun Li, Gaofeng Chen, Yasong Zhao, Zhenhai Xu, Xu Luo, Cheng Liu, Jianming Gao
Summary: The reactivity of recycled brick powder (RBP) was investigated by studying its dissolution behavior in NaOH solution and the degree of reaction in cement matrix. The results showed that the main active species of RBP, Si and Al, had a slow dissolution process with a significant non-steady state dissolution stage. The dissolution mechanism controlled by the phase boundary reaction and the activation energies for Si and Al dissolution further confirmed this finding. Various analysis techniques confirmed the reactivity of RBP. Reaction rims were observed around RBP particles in cement paste, indicating the presence of a hybrid phase composed of the original RBP components and the reaction products.
CEMENT & CONCRETE COMPOSITES
(2023)
Article
Construction & Building Technology
Zhi Ge, Hongya Yue, Renjuan Sun
CONSTRUCTION AND BUILDING MATERIALS
(2015)
Article
Construction & Building Technology
Zhi Ge, Yuanyuan Wang, Renjuan Sun, Xinsheng Wu, Yanhua Guan
CONSTRUCTION AND BUILDING MATERIALS
(2015)
Article
Materials Science, Multidisciplinary
Zhi Ge, Yuanyuan Wang, Yue Hou, Wenjuan Sun, Renjuan Sun
MATERIALS & DESIGN
(2015)
Article
Construction & Building Technology
Yue Hou, Wenjuan Sun, Prabir Das, Xiuguang Song, Linbing Wang, Zhi Ge, Yucheng Huang
JOURNAL OF MATERIALS IN CIVIL ENGINEERING
(2016)
Article
Materials Science, Characterization & Testing
X. Zhang, Z. Yao, Z. Ge, K. Yao, R. Tao, T. Yu, J. Han
JOURNAL OF TESTING AND EVALUATION
(2017)
Article
Engineering, Mechanical
Yue Hou, Meng Guo, Zhi Ge, Wenjuan Sun, Linbing Wang
JOURNAL OF ENGINEERING MECHANICS
(2017)
Article
Engineering, Mechanical
Yue Hou, Meng Guo, Zhi Ge, Wenjuan Sun, Linbing Wang
JOURNAL OF ENGINEERING MECHANICS
(2017)
Article
Engineering, Civil
Yanhua Guan, Ying Gao, Renjuan Sun, Moon C. Won, Zhi Ge
FRONTIERS OF STRUCTURAL AND CIVIL ENGINEERING
(2017)
Article
Construction & Building Technology
Hongya Yue, Hongbo Zhang, Honglu Mao, Xiuguang Song, Zhi Ge
JOURNAL OF MATERIALS IN CIVIL ENGINEERING
(2018)
Article
Construction & Building Technology
Yanhua Guan, Huaqiang Yuan, Zhi Ge, Yongjie Huang, Shuai Li, Renjuan Sun
ADVANCES IN CIVIL ENGINEERING
(2018)
Article
Materials Science, Multidisciplinary
Chuanbo Liu, Guozhen Liu, Zhi Ge, Yanhua Guan, Zhiyong Cui, Jian Zhou
ADVANCES IN MATERIALS SCIENCE AND ENGINEERING
(2019)
Article
Materials Science, Multidisciplinary
Honglei Chang, Zhiwu Zuo, Mingyue Qu, Fei Wang, Zhi Ge, Jian Liu
ADVANCES IN MATERIALS SCIENCE AND ENGINEERING
(2019)
Article
Construction & Building Technology
Honglei Chang, Chencong Li, Jianhong Wang, Hongzhi Zhang, Zhi Ge, Zhiwu Zuo, Jian Liu, Yang Zhou
Summary: The study found that different mineral admixtures have varying effects on the self-healing performance of cementitious-based materials. It is recommended to come up with a rational and optimized mineral admixture composition based on the feature of every mineral admixture.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Chemistry, Physical
Zhanchen Li, Huaqiang Yuan, Faliang Gao, Hongzhi Zhang, Zhi Ge, Kai Wang, Renjuan Sun, Yanhua Guan, Yifeng Ling, Nengdong Jiang
Summary: This study investigates the feasibility of low cement content foamed concrete using waste lime mud and fly ash as mineral additives. The results show that the foamed concrete has excellent workability and stability, and its mechanical properties increase with the increase in density and decrease in additives dosage.
Article
Materials Science, Multidisciplinary
Chuan Wang, Renjuan Sun, Xinlei Hu, Yanhua Guan, Yingzi Yang, Wei Lu, Jun Tian, Hongzhi Zhang, Zhi Ge, Branko Savija
Summary: This paper investigates the chloride penetration behavior of ECC under sustained flexural loads. It examines the relationship between surface chloride content and maximum normal tensile stress, and develops a binary model to explain the correlation among chloride ion diffusion coefficient, maximum normal tensile stress, and exposure time. It also measures the changes in capillary pore structure and phase compositions and explores the role of fiber bridging in limiting crack width and diffusion process.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Construction & Building Technology
Qi Jiang, Wei Liu, Shaopeng Wu, Xuanwen Gou
Summary: This study analyzes the erosion mechanisms of NaCl solution on asphalt concrete and finds that NaCl solution softens asphalt and promotes the intrusion of crystalline salt into it. Salt crystallization alters the surface roughness of aggregates, resulting in a decrease in skid resistance but an improvement in compressive strength. Additionally, the concentration of NaCl solution initially has no significant impact on the mechanical performance of asphalt concrete, but its domination gradually increases with the intensification of cyclic effects.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Lili Kan, Lan-qing Dai, Ning Kong, Bin Peng, Fei Wang
Summary: This paper investigates the effect of freezing and thawing cycles on the tensile behavior of cracked ultra-high performance concrete (UHPC). The results show that long-term freezing and thawing action deteriorates the cracking strength, tensile strength, tensile strain, and strain energy of cracked UHPC. On the other hand, the action of water generally favors the development of tensile properties of UHPC. The crack distribution tends to be unsaturated under freezing and thawing environment, and the re-hydration reaction is hindered. The pore structure near the crack varies under different environments.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Xin Xiao, Jingwei Li, Qingke Meng, Xiangshan Hou, Yanhui Liu, Xujiang Wang, Wenlong Wang, Shengtao Lu, Yuzhong Li, Yanpeng Mao, Tong Li
Summary: Preparing gypsum-based self-leveling mortar (GSLM) using beta-hemihydrate gypsum and solid wastes-derived sulfoaluminate cement (WSAC) can improve the mechanical performance of the mortar, but phosphorus impurities can weaken the hydration speed and degree.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Sihang Bao, Junzhen Di, Yanrong Dong, Ziqing Gao, Qing Gu, Yuanfang Zhao, Hongyu Zhai
Summary: Tailings dam break and leakage accidents pose a threat to the safety of people in mining areas and cause severe environmental pollution. This study focuses on solidifying tailing sand using microbial induced calcite precipitation (MICP) to improve strength and fix heavy metals. The curing time of MICP bio-cemented tailings is found to significantly impact the strength of tailings, while its effect on heavy metal fixation is minimal. The optimized MICP curing time is 10 days, resulting in improved strength and cementation of tailings particles.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Ferhat Benmahiddine, Fares Bennai, Achraf Charaka, Ameur El Amine Hamami, Abdelkader Tahakourt, Rafik Belarbi
Summary: This paper studied the effects of hysteresis on the hygrothermal behavior at the building scale. Through laboratory validation and numerical simulations, it was found that hysteresis has a significant impact on the relative humidity and total heat fluxes in buildings, while it does not have a noticeable effect on temperature variations.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
You Gao, Wei He, Xiayang Zhang, De'an Sun, Pei Li
Summary: This study determined the boundary line between the swelling and compression deformation zone in lateritic clay through wetting tests, and proposed a simple bimodal SWRC model. It also found that the existing strength model underestimated the tested values in the medium to high suction range, therefore a segmented strength equation was introduced for enhanced predictions of the strength properties of lateritic clay.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Prabhath Ranjan Kumar Soda, Asheer Mogal, Kalyan Chakravarthy, Nikhil Thota, Nimish Bandaru, Sanjay Kumar Shukla, K. M. Mini
Summary: This study investigates the use of encapsulated bacteria to improve the self-healing ability of concrete. Through various tests, it is found that using 20% cement-coated alginate beads (CCAB) and 5% nanosilica (NS) can achieve optimal strength and healing. This research is significant for enhancing the durability of concrete.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Shizhe Wang, Haiping Wu, Wen Yang, Wei Wang, Zhibo Zhu, Kun Nie, Luoxin Wang, Hua Wang, Jing Wu
Summary: In this study, photothermal-heat storage concrete (PHSC) was developed with excellent photothermal conversion performance and heat storage capacity. By absorbing and storing solar energy during the day and releasing it at night, PHSC can effectively reduce energy consumption in buildings.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Robin Deb, Jialuo He, Geetika Mishra, Yaghoob (Amir) Farnam
Summary: Incorporation techniques of phase change materials in cementitious composites have a significant influence on thermal properties. This study investigated the thermal behavior of low-temperature PCM when subjected to varying temperature change rates and pore confinement inside the porous network of lightweight aggregates. The results showed that ramp rates affect the nucleation and crystallization growth process during the phase transition, and the pore structure of the aggregates affects the supercooling phenomenon and confinement pressure of the PCM.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Eduardo Ferreira, Payam Sotoudeh, Dagmar Svecova
Summary: This study investigates the fatigue behavior of concrete under different stress reversal conditions. The results indicate that stress reversal generally causes more severe damage and reduces the cycles to failure compared to tensile fatigue. Additionally, adding some level of compression contributes to the energy required for failure under stress reversal fatigue. Specimens with higher concentration of fractured aggregates achieve longer fatigue lives.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Mag Raj Gehlot, Sandeep Shrivastava
Summary: This study evaluates the compatibility relationship between plaster bonds and the substrate under an accelerated aging environment, and finds that incorporating an appropriate amount of granite cutting waste can improve the strength parameters and adhesion of the cement mortar.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Min Zhang, Qirui Luo, Mingke Deng, Shixing Zhao
Summary: This study investigated the bond behavior between carbon FRCM composites with added short fibers and concrete substrates. The effects of different factors were considered and 36 specimens were tested and discussed. The experimental results were analyzed in terms of failure mode, load-slip curve, and characteristic parameters, and the contribution of weft yarns was taken into account in the developed bondslip model.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Dengkai Liu, Hongniao Chen, Ray Kai Leung Su
Summary: The susceptibility of building stones to fire and high temperature was investigated in this study by examining their physical and mechanical properties. The results show that both compressive and tensile properties of stones are affected by temperature changes. The tensile strength is particularly sensitive to temperature changes, requiring special attention to the components subjected to tensile stress in stone buildings. Principal component analysis was used to predict the mechanical properties of stones, providing a new method for calculating the residual mechanical properties after high temperature or fire.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Joso Maria Raposo, Eduardo Cavaco, Luis Costa Neves, Eduardo Julio
Summary: This paper investigates the correlation between the friction coefficient and the surface roughness of concrete-to-concrete interfaces. Experimental tests were performed on specimens with different surface treatments, and the surface roughness parameters were analyzed and correlated with the shear strength and friction coefficient. The results showed that certain roughness parameters had a strong positive correlation with the friction coefficient, while others had little or no correlation. A novel combined roughness parameter with optimized correlation was proposed.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Chiara Riccardi, Massimo Losa
Summary: The interest in using bio materials in asphalt pavements is growing due to economic reasons and environmental benefits. This study aimed to review the use of bio extenders as additives in binders, with a focus on replacements greater than 20% of fossil binder. The properties of bio-extended binders were found to vary substantially depending on the biomass source and production process.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
