Article
Materials Science, Multidisciplinary
Feng Jiang, Zhongwei Qi, Daqiang Cang, Lingling Zhang, Yi Jin
Summary: A novel ceramic was prepared from alkali-activated coal fly ash rich in CaO, which exhibited excellent physical properties and could be used as industrial structural materials and building floor materials.
Article
Materials Science, Ceramics
Bin Xia, Zhipeng Wang, Lizheng Gou, Mei Zhang, Min Guo
Summary: Ceramic microspheres prepared from pre-treated high-alumina fly ash by spray drying can be used to fabricate porous mullite ceramics with high compressive strength. The study found that under appropriate sintering temperature and time conditions, the resulting porous mullite ceramics exhibit suitable porosity and compressive strength.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Yi Zhou, Dongcheng Ye, Yaqun Wu, Chengxia Zhang, Wei Bai, Yuming Tian, Mei Qin
Summary: Low-cost magnesium aluminate spinet ceramics were synthesized successfully via one-step sintering method using magnesite and bauxite minerals. The ratio of bauxite to magnesite was found to affect the phase evolution, microstructure, and mechanical properties. An appropriate but not saturated cation solution was beneficial for densification, homogenization of crystal grains, and strength enhancement. The ceramics with a stoichiometric ratio of 1.31 bauxite to magnesite exhibited the highest density and flexural strength.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Ong Shee-Ween, Heah Cheng-Yong, Liew Yun-Ming, Mohd Mustafa Al Bakri Abdullah, Ho Li Ngee, Lynette Wei Ling Chan, Ooi Wan-En, Nur Ain Jaya, Ng Yong-Sing
Summary: This research focuses on utilizing low alkali activator content and cold pressing technique to form fly ash-based geopolymers under room temperature conditions. The results demonstrate that specific parameters can lead to optimized mechanical properties in the geopolymers.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Energy & Fuels
Jun Hao, Zhi-he Dou, Ting -an Zhang, Kun Wang, Xing-yuan Wan, Song Qi
Summary: This paper proposes a novel method for comprehensive disposal of fly ash to produce ferrosilicon without slag at low temperature and with high efficiency reduction under the action of Fe2O3. The study systematically investigates the promotion of Fe2O3 on the reduction and decomposition of fly ash, as well as the strengthening mechanism of the reduction and decomposition of mullite phase. Thermodynamic analysis and experimental results support the proposed carbothermal reduction process of fly ash and the decomposition mechanism of mullite, and suggest a new idea of preparing ferrosilicon and alumina/calcium aluminate byproducts through electric furnace melting.
Article
Construction & Building Technology
Peem Nuaklong, Kit Janprasit, Pitcha Jongvivatsakul
Summary: Incorporating rice husk ash led to an improvement in compressive strength of high-calcium fly ash geopolymer modified with borax, while using borax instead of sodium silicate resulted in decreased strength. The decrease in strength when using borax was attributed to the increase in crystalline nature of reaction products caused by lower Si/Al ratios in the gel phases formed.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Materials Science, Ceramics
Cheng Hu, Weiheng Xiang, Ping Chen, Qing Li, Ruiheng Xiang, Libo Zhou
Summary: Rare earth Y2O3 was used as a modifying agent to improve the physico-chemistry properties of cordierite-based composite ceramics for concentrated solar power heat transfer pipelines. The addition of Y2O3 increased the densification, flexural strength, and heat shock resistance of the ceramic materials. X-ray diffraction and scanning electron microscopy analysis demonstrated that Y3+ ions in the ceramic played a role in accelerating grain crystallization and reducing liquid viscosity for improved properties.
CERAMICS INTERNATIONAL
(2022)
Article
Construction & Building Technology
Jan Fort, Jiri Sal, Radek Sevcik, Magdalena Dolezelova, Martin Keppert, Milos Jerman, Martina Zaleska, Vojtech Stehel, Robert Cerny
Summary: The tightening of environmental standards in the EU presents a significant push towards the transition to a circular economy. However, the use of coal fly ash as partial cement replacement may face challenges in the future, leading to the consideration of biomass fly ash as a promising alternative.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Construction & Building Technology
Saif Al-Shmaisani, Ryan D. Kalina, Raissa Douglas Ferron, Maria C. G. Juenger
Summary: The availability of traditional siliceous Class F fly ash is decreasing as countries switch to renewable energy sources. To extend the availability of siliceous fly ash, suppliers are distributing blended coal ashes and incorporating other coal combustion products (CCPs) or natural pozzolans. While the characteristics of these blended fly ashes may differ, they perform well in cement-based mixtures.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Materials Science, Ceramics
Xiangtao Huo, Bin Xia, Tianzhuo Hu, Mei Zhang, Min Guo
Summary: In this paper, high-strength porous mullite ceramics were prepared by utilizing high alumina fly ash and MoO3 additive through a calcination method. MoO3 addition was found to significantly influence the pore structure and mechanical properties of the ceramics. The mechanism of MoO3 in promoting the growth of mullite whiskers and improving the matrix strength was explained. The optimized porous mullite ceramic exhibited a high porosity of 49.4% and an improved compressive strength of 13.03 MPa with the addition of 10 wt% MoO3, calcinated at 1300 degrees C.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Zhikun Zhang, Zhichuan Li, Yibo Yang, Boxiong Shen, Jiao Ma, Lina Liu
Summary: In this study, municipal solid waste incineration fly ash was recycled into environmentally friendly glass-ceramics. The effects of different parameters on the crystalline phases, mechanical properties, and heavy metals leaching of the glass-ceramics were investigated. The results showed that the glass-ceramics exhibited stable crystalline phases, good mechanical properties, high alkali resistance, and low potential ecological risk, indicating their potential application feasibility.
CERAMICS INTERNATIONAL
(2022)
Article
Construction & Building Technology
M. Talha Ghafoor, Qasim S. Khan, Asad U. Qazi, M. Neaz Sheikh, M. N. S. Hadi
Summary: This study investigates the influence of alkaline activators on the mechanical properties of cement-free geopolymer concrete cured at ambient temperatures, with varying parameters leading to optimized compressive and flexural strengths.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Materials Science, Ceramics
Hanaa Hajjou, Kamal Tabit, Latifa Saadi, Mohamed Waqif
Summary: In this study, cordierite-based ceramics were prepared from stevensite-rich clay or coal fly ash (CFA) and stevensite-rich clay using a solid-state interaction process. The effects of heating temperature and starting materials on the microstructure and mechanical strength were investigated. The addition of CFA to stevensite-rich clay enhanced its reactivity and increased the mechanical strength from 5 MPa to 15 MPa at 1200 degrees C.
JOURNAL OF ASIAN CERAMIC SOCIETIES
(2023)
Article
Materials Science, Ceramics
Takeshi Kumazawa, Hisao Suzuki
Summary: High-purity mullite ceramics were fabricated using transient liquid phase sintering to enhance their high-temperature mechanical properties. By adding small amounts of ultrafine alumina or silica powders, densification and mullite formation during sintering were improved. Different powder compositions resulted in varied sintering behaviors, with optimal processing leading to high-density and strong ceramics at high temperatures in air.
CERAMICS INTERNATIONAL
(2021)
Article
Environmental Sciences
Haiyan Ji, Xue Mi, Qiangkun Tian, Chunli Liu, Junxia Yao, Shuhua Ma, Guisheng Zeng
Summary: This study successfully removed the amorphous phase from HAFA and increased the Al2O3/SiO2 mass ratio through a novel mechanochemical activation-desilication process, resulting in excellent mullite refractory materials.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Materials Science, Ceramics
Zhiyong Liu, An Zhang, Xinhui Geng, Jinshan Lu, Yuqing Mao, Shen Ouyang
CERAMICS INTERNATIONAL
(2019)
Article
Materials Science, Ceramics
An Zhang, Zhiyong Liu, Xinhui Geng, Wenfeng Song, Jinshan Lu, Bing Xie, Shanming Ke, Longlong Shu
CERAMICS INTERNATIONAL
(2019)
Article
Chemistry, Physical
Zhiyong Liu, An Zhang, Jinshan Lu, Bing Xie, Bingliang Liang, Yuqing Mao, Huiqing Fan
JOURNAL OF ALLOYS AND COMPOUNDS
(2020)
Article
Chemistry, Physical
Zhiyong Liu, An Zhang, Shuaichang Xu, Jinshan Lu, Bing Xie, Kun Guo, Yuqing Mao
JOURNAL OF ALLOYS AND COMPOUNDS
(2020)
Article
Engineering, Chemical
Jinshan Lu, Qiaohui Li, Wenfeng Song, Zhiyong Liu, Chunlei Wang
Article
Chemistry, Physical
An Zhang, Zhiyong Liu, Bing Xie, Jinshan Lu, Kun Guo, Shanming Ke, Longlong Shu, Huiqing Fan
APPLIED CATALYSIS B-ENVIRONMENTAL
(2020)
Article
Materials Science, Ceramics
Lisong Li, Bing Xie, Zhiyong Liu, Xu Cheng, Ling Zhang, Weigang Ma, Pengyuan Fan, Haibo Zhang
Summary: In this study, ceramics consisting of (1-x)Ba0.4Sr0.6TiO3-xBiFeO3 (x = 0.05, 0.10, 0.25) were prepared using the traditional solid-state method. It was found that the addition of BiFeO3 can greatly enhance the energy storage property of the Ba0.4Sr0.6TiO3 ceramics, making them promising candidates in the field of power electronics.
CERAMICS INTERNATIONAL
(2021)
Article
Nanoscience & Nanotechnology
Bing Xie, Qi Wang, Qi Zhang, Zhiyong Liu, Jinshan Lu, Haibo Zhang, Shenglin Jiang
Summary: By incorporating BT@SiO2@dopa NWs into the PMMA matrix, the discharge energy density and discharge efficiency of nanocomposites have been significantly improved. Both experimental and theoretical simulations have shown that the double core-shell structure nanowire fillers can effectively alleviate local field distortion, inhibit leakage current, and suppress remnant electric displacement, resulting in high energy density and efficiency. These findings are conducive to the development of high-performance film dielectric capacitor materials using PMMA-based nanocomposites for high energy storage density.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Ceramics
Zhiyong Liu, Shuaichang Xu, Tao Li, Bing Xie, Kun Guo, Jinshan Lu
Summary: High-entropy oxides can be designed as new ferroelectric materials with interesting physical consequences by selecting various elements to achieve a single-phase structure. The high-entropy perovskite ceramics exhibit excellent chemical homogeneity and effectively disorder the symmetry of the crystal structure to achieve a robust ferroelectric polarization. This approach provides additional opportunities to discover and tailor the functional properties in entropy-stabilized ferroelectrics.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Qi Wang, Tongtong Wang, Ling Zhang, Zhiyong Liu, Kun Guo, Jinshan Lu, Bing Xie
Summary: The lead-free 0.8BST-0.2SBT RFE ceramic, achieved through the addition of Bi3+ and increased Sr2+ content, effectively inhibited grain growth and resulted in high breakdown strength and low remnant polarization. The mutual conversion of polar nanoregions and ferroelectric domains at different electric field strengths led to high maximum polarization and low remnant polarization, enabling the ceramic to exhibit high energy-storage performance.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Yuwei Ding, Zhiyong Liu, Bing Xie, Fang Wang, Kun Guo, Pu Mao, Bingliang Liang, Jinshan Lu
Summary: Both high strain and low driving electric-field are important characteristics for piezoelectric actuators in industrial applications, but achieving both in a single material system is challenging. In this study, layered composite ceramics with a relaxor/ferroelectric structure were prepared to overcome this challenge. The layered composites exhibited higher field-induced strains and excellent temperature stability compared to inlay-onlay composites. The enhanced strain performance in the layered composites was attributed to the inhomogeneous distribution of internal electric-field between the relaxor and ferroelectric phases, as well as the restricted phase boundary between the two phases.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Engineering, Environmental
Qinfang Jing, Zhiyong Liu, Xian Cheng, Cichun Li, Pengrong Ren, Kun Guo, Haojie Yue, Bing Xie, Ting Li, Zhiguo Wang, Longlong Shu
Summary: The semiconductor n-p heterojunctions BiVO4/BiFeO3 (BVO/BFO) were designed to enhance piezo-photocatalytic processes and achieved ultra-high and stable catalytic performance. The degradation rate of Rhodamine B (RhB) solution reached 98%, which was 6.12 times higher than photocatalysis and 4.36 times higher than piezoelectric catalysis. The n-type BVO nanoparticles on the surface of p-type BFO enabled the formation of a built-in polarization field, resulting in improved carrier transport performances. The remarkable photo-piezoelectric properties of BVO/BFO heterojunctions provide valuable insights for efficient piezo-photocatalysis in environmental remediation.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Pu Mao, Yongguang Guo, Gang Lu, Qingsong Yan, Ruirui Kang, Ting Wang, Bing Xie, Zhiyong Liu, Lixue Zhang
Summary: In this study, we successfully synthesized capacitive ceramics suitable for low electric field situations by utilizing a synergistic design strategy of multi-phase and multi-domain structures. The optimized composition exhibited excellent energy storage performances, demonstrating the potential for applications in advanced energy storage capacitors.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Ceramics
Jin Liu, Bingliang Liang, Yunlong Ai, Jianjun Zhang, Fei He, Wen He, Zhiyong Liu
Summary: Microwave-synthesized xLa(2)O(3)/10Nb(2)O(5)-(90-x)Al2O3 composite ceramics show improved toughness compared to pure Al2O3 ceramic, with added La2O3 and Nb2O5 significantly enhancing the mechanical properties. The formation of various phases during sintering contributes to the enhanced fracture toughness of the composite ceramics.
JOURNAL OF CERAMIC PROCESSING RESEARCH
(2021)
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)
