Article
Construction & Building Technology
Juelide Erkmen, Mihriban Sari
Summary: This study aimed to produce an environmentally friendly, easily accessible, inexpensive and renewable construction composite material with thermal and water insulation properties. Waste papers, hazelnut shells, pinecones and sheep wool were used in the production process. The filling rates of the materials were optimized using the RSM. A hydrophobic surface-active substance was applied to reduce water absorption, microbial activity and mold formation. The specimens exhibited contact angles of 84 to 146 degrees, thermal conductivity of 0.0511 to 0.0861 W/mK, and densities of 0.678 to 0.99 g/cm3. Compressive and flexural strength tests showed high compressive strength, with the highest value of 32.8093 N/mm2 in specimen N25, and the highest flexural strength of 6.352 N/mm2 in specimen N20. A completely environmentally friendly, biodegradable and low-cost material was successfully produced from biomass waste.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Wondu Lee, Jooheon Kim
Summary: In this study, polymer-based thermal insulating composites were fabricated using pyrolyzed cellulose nanofiber and carbon fiber, showing low thermal conductivity and high thermal stability, indicating the potential for the development of thermal resistance materials.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Construction & Building Technology
Ke Li, Yuansheng Wang, Xiao Zhang, Jianxun Wu, Xuan Wang, Aimin Zhang
Summary: The MOC cement was hydrophobically modified with PDMS and foamed using hydrogen peroxide. The addition of foaming agent increased porosity and pore size, improving thermal insulation. PDMS modification enhanced water-resistance and achieved superhydrophobicity, while also explaining the mechanism of water-resistance enhancement at a microscopic level.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Review
Green & Sustainable Science & Technology
Houda Ajabli, Amine Zoubir, Rabie Elotmani, Mohamed Louzazni, Khalid Kandoussi, Abdelmajid Daya
Summary: Since the 1930s, thermal comfort has been a crucial topic in the construction industry. The use of natural materials, including vegetal fibers or recycled waste products, is being explored to enhance thermal comfort in buildings. This study examines the origins and progression of thermal comfort concepts and evaluates the potential of integrating bio-based materials in building envelopes for maintaining thermal comfort. The findings suggest that alternative insulation materials made from unusual sources can compete with conventional materials and offer good thermal conductivity.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2023)
Article
Materials Science, Composites
Jianming Liao, Yansu Hou, Jun Li, Min Zhang, Yunyuan Dong, Xiaobin Chen
Summary: The article introduces a simple and scalable strategy to prepare cellulose-based multifunctional foam materials through physical cross-linking and stabilization. The foam exhibits low density, enhanced flame-retardant performance, low thermal conductivity, good acoustic insulation property, and good mechanical properties. It can also be recycled. This novel foam material is highly significant for modern engineering construction applications.
COMPOSITES SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Environmental
Xian Liu, Changjie Chen, Jiusheng Sun, Xinhou Wang
Summary: The study evaluated a new mulch made from recyclable biodegradable natural fibers and found that it performed better in certain aspects compared to traditional plastic mulch. Field tests showed excellent degradability of the new mulch.
Article
Materials Science, Ceramics
Kun Zhang, Tailing Li, Zengzi Wang, Zhizhi Sheng, Xuetong Zhang
Summary: This study developed a reversible gelling method to prepare a recyclable thermal insulation material for buildings called RTIP. The RTIP showed low bulk density, low thermal conductivity, and achieved fairly stable hydrophobicity and thermal conductivity after multiple cycles of re-dissolving and drying. This work provides a new paradigm for developing environmentally-friendly thermal insulation materials for buildings.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Ceramics
Hakbeom Jeon, Inhwan Lee, Yoonsuk Oh
Summary: By studying the application of suspensions with different particle sizes on thermal insulation coatings, the microstructure and thermal properties of the coatings can be improved. The density of unmelted particles in the coating has a significant effect on the thermal conductivity of the coatings.
CERAMICS INTERNATIONAL
(2021)
Article
Engineering, Multidisciplinary
Tao Zhou, Rong-zheng Fang, Di Jia, Pei Yang, Zhi-ying Ren, Hong-bai Bai
Summary: In this study, virtual manufacturing technology was used to restore the 3D model of EPMWM and conduct thermal analysis to explore its thermal response mechanism. The spiral units containing unique structural information were extracted and counted, and a thermal resistance network was constructed to accurately predict the effective thermal conductivity of EPMWM. The experimental results show that the effective thermal conductivity of EPMWM increases with increasing temperature or decreasing density.
DEFENCE TECHNOLOGY
(2023)
Article
Chemistry, Physical
Lu An, Jason N. Armstrong, Yong Hu, Yulong Huang, Zheng Li, Donghui Zhao, Jesse Sokolow, Zipeng Guo, Chi Zhou, Shenqiang Ren
Summary: Flexible hierarchical superhydrophobic ceramic insulation nanocomposites were successfully fabricated through the densified architectured hierarchical nanostructures, radiative insulation coating, and interfacial cross-linking among composites. The lightweight ceramic nanocomposites exhibit high-temperature fire resistance, super-hydrophobicity, and mechanical robustness, offering potential applications in high-temperature thermal insulation under high mechanical loading conditions.
Article
Engineering, Environmental
Junshuo Zhang, Yu Wang, Jianpeng Wu, Jianyu Zhou, Wenhui Wang, Shuai Liu, Yucheng Pan, Min Sang, Bing Liu, Xinglong Gong
Summary: This study proposes a novel strategy for achieving multi-physics protection through biomimetic structural design, and develops a smart fire suit. The fire suit not only exhibits excellent impact resistance and thermal insulation, but also monitors mechanical injury behavior.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Construction & Building Technology
Mustafa Altin, Giray Samil Yildirim
Summary: This study investigates the use of sheep wool as a thermal insulation material by adding boron to produce a new insulation board. The performance of this material is compared with rock wool and expanded polystyrene (EPS), and it is found that the boron-doped sheep wool insulation material provides better sound insulation and performs similarly in terms of temperature and humidity compared to rock wool and EPS.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Energy & Fuels
Xuechuan Geng, Jiahui Wang, Yanna Gao, Xi Meng
Summary: The research results show that selecting the relative position of TIM and PCM layers in multi-layer walls based on air conditioning operation mode can improve thermal performance and achieve energy-saving effects.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Construction & Building Technology
Laura Elena Reynoso, Angeles Belen Carrizo Romero, Graciela Melisa Viegas, Gustavo Alberto San Juan
Summary: This study presents an alternative low-cost insulating material made from mechanical reuse of EPS waste packaging, with comparable performance to commercially available insulations, providing an environmentally-safe and cost effective alternative for low income populations worldwide.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Thermodynamics
Chao Jia, Xiaoying Geng, Fudan Liu, Yanna Gao
Summary: The study showed that filling TIM and PCM had different mechanisms for improving the thermal performance of hollow sintered bricks. PCM increased thermal inertia, while TIM mainly increased thermal resistance. Integrating both TIM and PCM could comprehensively improve the thermal performance of bricks.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Construction & Building Technology
Bozena Orlik-Kozdon, Tomasz Steidl
JOURNAL OF BUILDING PHYSICS
(2016)
Article
Construction & Building Technology
Bozena Orlik-Kozdon, Tomasz Steidl
JOURNAL OF BUILDING PHYSICS
(2017)
Article
Thermodynamics
Bozena Orlik-Kozdon, Janusz Belok
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2017)
Article
Construction & Building Technology
Bozena Orlik-Kozdon, Artur Nowoswiat
JOURNAL OF BUILDING PHYSICS
(2018)
Article
Construction & Building Technology
Bozena Orlik-Kozdon, Artur Nowoswiat, Pawel Krause, Tomasz Ponikiewski
CONSTRUCTION AND BUILDING MATERIALS
(2018)
Article
Energy & Fuels
Bozena Orlik-Kozdon
Article
Construction & Building Technology
Jan Slusarek, Bozena Orlik-Kozdon, Jerzy Bochen, Tomasz Muzyczuk
JOURNAL OF BUILDING ENGINEERING
(2020)
Article
Energy & Fuels
Bozena Orlik-Kozdon, Elzbieta Radziszewska-Zielina, Malgorzata Fedorczak-Cisak, Tomasz Steidl, Andrzej Bialkiewicz, Maria Zychowska, Andriy Muzychak
Article
Energy & Fuels
Bozena Orlik-Kozdon
Article
Energy & Fuels
Bozena Orlik-Kozdon
Summary: The research analyzes the performance of insulation material based on polystyrene wastes, finding that recycled materials have technical parameters comparable to new components. In situ tests show that the product performs better in real conditions compared to commonly used lightweight cellular concrete as thermal insulation materials.
Article
Construction & Building Technology
Bozena Orlik-Kozdon
CONSTRUCTION AND BUILDING MATERIALS
(2017)
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)