Article
Chemistry, Physical
Huixing Dai, Huan Gao, Pan Yang, Jinzong Mo, Haomin Zhang, Shengjun Lei, Ling Wang
Summary: This paper presents a novel kaolinite-based porous geopolymer composite thermal insulation material with superior comprehensive properties. The effects of rock wool fiber contents and heat treatment on the properties of the material were investigated. The results show that the addition of rock wool fiber enhances the mechanical properties and heat treatment improves the thermal insulation performance. This material has a simple manufacturing process, eco-friendly properties, and exhibits lightweight construction, high strength, and low thermal conductivity, making it highly suitable for building energy conservation.
APPLIED CLAY SCIENCE
(2023)
Article
Construction & Building Technology
Arnas Majumder, Maddalena Achenza, Costantino Carlo Mastino, Roberto Baccoli, Andrea Frattolillo
Summary: To reduce the environmental impact of construction, natural, recyclable, and sustainable materials are needed. Panels made from recycled jute fibers from coffee bean packaging and old mattresses, as well as panels made from a loofah-clay mix, were studied. The thermal conductivity of jute fiber panels falls within the range of wool fiber panels with similar density, and within the lower range of jute-polyester-polypropylene sandwich composite panels. The density of clay products, which affects their performance, depends on the percentage of binder used.
ENERGY AND BUILDINGS
(2023)
Article
Materials Science, Ceramics
Majda Pavlin, Barbara Horvat, Mark Cesnovar, Vilma Ducman
Summary: In this study, the potential use of waste mineral wool for the production of alkali-activated foams was evaluated. The results showed that waste stone wool can be used as a precursor for the production of porous foams with different densities and mechanical properties.
CERAMICS INTERNATIONAL
(2022)
Article
Green & Sustainable Science & Technology
Ziwei Chen, Hao Wang, Minghao Wang, Wenchao Wu, Lili Liu, Xidong Wang
Summary: This study presents a method for the efficient and environmentally friendly utilization of red mud. By using a one-step process based on green chemistry principles, the recovery of valuable metals, control of hazardous substances, and complete utilization of residues were achieved simultaneously. Experimental results showed a recovery rate of above 87% and the prepared mineral wool exhibited satisfactory properties.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Chemistry, Multidisciplinary
Chi-Su Lim, Dae-Seong Jang, Jin-Cheol Kim, Hong-Sam Kim, Jae-Jun Lee
Summary: Waste glass wool and waste mineral wool can be used as fiber reinforcement in cement concrete. The addition of waste fibers affects the fresh properties and strength properties of concrete, but has little effect on freezing-thawing resistance and chloride ion penetration resistance.
APPLIED SCIENCES-BASEL
(2023)
Article
Construction & Building Technology
Y. Luo, Qingliang Yu
Summary: This study investigates the potential of utilizing mineral wool wastes (MWW) as both co-precursor and fiber reinforcement in geopolymer. The results show that MWW accelerates the formation of gel and enhances the properties of the hybrid geopolymer. However, the inclusion of MWW also increases porosity and leads to thermal shrinkage at elevated temperatures.
CEMENT & CONCRETE COMPOSITES
(2024)
Article
Materials Science, Textiles
Duygu Gazioglu Ruzgar, Sule Altun Kurtoglu, Mehmet Ferdi Fellah
Summary: This study investigates the pollutant gas sorption capacity of washed-combed wool fiber and washed-combed-dyed wool fiber. Sulfur dioxide (SO2) was chosen as the pollutant gas, and both experimental and theoretical approaches were employed to study its adsorption on wool fibers. The results show that wool fibers have good adsorption capacity for SO2.
JOURNAL OF NATURAL FIBERS
(2022)
Article
Engineering, Electrical & Electronic
Xiaotian Jiang, Danshi Wang, Xue Chen, Min Zhang
Summary: In this paper, a physics-informed neural network (PINN)-based method is proposed for optical fiber parameter estimation by solving the inverse problem of the nonlinear Schrodinger equation (NLSE). The method considers both the prior knowledge of physical law and the characteristics of observation data. Through learning limited observation data, the proposed method can infer the unknown parameters of NLSE and optimize the fiber parameters.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Engineering, Environmental
Juho Yliniemi, Rajeswari Ramaswamy, Tero Luukkonen, Ossi Laitinen, Alvaro Nunes de Sousa, Mika Huuhtanen, Mirja Illikainen
Summary: Characterization of mineral wool waste is essential for its utilization as a secondary raw material. Glass wool and stone wool have different chemical compositions, with low concentrations of potentially toxic elements. Organic resin in mineral wools may decompose under certain conditions.
Article
Thermodynamics
Baofeng Huang, Yeqing Wang, Wensheng Lu, Meng Cheng
Summary: Translucent concrete panel (TCP) is a new construction material that can transmit light and carry external loads, with excellent thermal insulation performance. Numerical modeling experiments showed that the model with a TCP envelope had the lowest energy consumption and economic cost. This novel TCP is applicable in building envelopes and other areas where light transmission and load-bearing are required.
Article
Engineering, Electrical & Electronic
F. J. Vaquero-Caballero, D. J. Ives, S. J. Savory
Summary: This paper proposes a new method for the separation of noise categories based on Four-Wave Mixing. By introducing perturbations, the behavior of different noise categories can be separated. The estimation of noise categories is discussed from the perspective of NSR evolution and power spectral density.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Chemistry, Physical
El Mehdi Ablaoui, Michal Malendowski, Wojciech Szymkuc, Zbigniew Pozorski
Summary: The paper presents a study on the thermal behavior of mineral wool used in sandwich panels, utilizing theoretical, experimental, and numerical approaches. The aim is to investigate the thermal properties of mineral wool at elevated temperatures and develop a simple model for heat propagation in sandwich panels during a fire. Experimental evaluation of thermal diffusivity is conducted using a laboratory furnace, and the obtained results are processed and analyzed. The thermal properties are further validated through numerical analysis using the finite element method (FEM).
Article
Materials Science, Textiles
Di Lu, Weidong Yu, Ning Pan
Summary: The developed method based on acoustic emission signals can be used to estimate the distribution of breaking strength and elongation of individual wool fibers. Results show that the distributions obtained from bundle tests are similar to those from single fiber sample tests.
TEXTILE RESEARCH JOURNAL
(2021)
Article
Construction & Building Technology
Naveed Ahmad, Muhammad Rizwan, Babar Ilyas, Sida Hussain, Muhammad Usman Khan, Hamna Shakeel, Muhammad Ejaz Ahmad
Summary: This paper discusses the impact of joint damage and deterioration on the seismic response of existing reinforced concrete frames and proposes a new simulation method. By improving the model and considering the true inelastic mechanisms, the performance and collapse probability of the frames can be more accurately assessed.
Article
Optics
Larry B. Stotts, Antonio Oliver, Joseph R. Penano
Summary: This paper describes two engineering models for predicting the Probability Density Function (PDF) of the Filamentation Onset Distance (FOD) in turbulent, lossy, and nonlinear media. These models show reasonable agreement with previous computer simulation results.
