Article
Construction & Building Technology
Osman Gencel, Oguzhan Yavuz Bayraktar, Gokhan Kaplan, Oguz Arslan, Mehrab Nodehi, Ahmet Benli, Aliakbar Gholampour, Togay Ozbakkaloglu
Summary: This study investigates the physico-mechanical, durability, and insulation properties of foam concrete using waste glass sand as an aggregate. The results show that the addition of glass sand improves the physical and mechanical properties of foam concrete. The addition of expanded perlite increases the insulation properties. Therefore, the study suggests that sustainable insulating foam concrete can be produced using waste glass sand.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Construction & Building Technology
Rabab Allouzi, Hatem Almasaeid, Amer Alkloub, Osama Ayadi, Rawan Allouzi, Ramia Alajarmeh
Summary: This study investigates the current thermal insulation practices in Jordan, a country with limited natural resources and no enforced thermal insulation codes. It reviews the progress of modern architecture and construction in Jordan and examines the structural use of foamed concrete, verifying its applicability in structural members. Artificial Neural Network is trained to bridge the mixture components and mechanical properties, showing good agreement with experimental outcomes. Furthermore, three exterior walls constructed using foamed concrete exhibit significantly lower U-values compared to a wall made with conventional concrete, indicating potential energy savings for clients.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Aisha Rehman, Shadi Houshyar, Azadeh Mirabedini, Deshan Cheng, Guangming Cai, Rajiv Padhye, Xin Wang
Summary: The synthesis of nanodiamond/polydopamine/wool (ND-PDA-wool) nanocomposites through a dip-coating approach demonstrates excellent cooling performance with a temperature difference of 2.4-3.9 degrees C between coated and uncoated fabrics in a short time span. These composite fabrics offer enhanced thermal stability, improved mechanical properties, and increased water absorbency while maintaining air permeability. They provide a strategy for developing durable, lightweight, washable, and comfortable cooling textiles with excellent thermal conductivity.
MACROMOLECULAR MATERIALS AND ENGINEERING
(2022)
Article
Biotechnology & Applied Microbiology
Ubong Williams Robert, Sunday Edet Etuk, Okechukwu Ebuka Agbasi, Grace Peter Umoren, Namdie Joseph Inyang
Summary: Waste generation is a result of human activity and is inevitable. To achieve sustainable development, it is necessary to prevent waste from degrading the economy, environment, and health, and optimize resource utilization through the adoption of the 3Rs principle.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Construction & Building Technology
Payam Shafigh, Mohamed Ahmed Hafez, Zakaria Che Muda, Salmia Beddu, As'ad Zakaria, Zaher Almkahal
Summary: This study investigates the influence of different climatic ambient temperatures on the thermal properties of fiber-reinforced lightweight aggregate concrete (LWAC). The results show a linear dependence of thermal conductivity, specific heat, thermal diffusivity, and thermal effusivity of fiber-reinforced LWACs on the different ambient temperatures.
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
Thermodynamics
Emilio Sassine, Elias Kinab, Yassine Cherif, Emmanuel Antczak, Michel Nasrallah
Summary: This study analyzed the thermal impact of using lightweight concrete in Lebanese building constructions through experiments and numerical simulations. The results indicate that integrating lightweight concrete into building envelopes can effectively reduce energy consumption and improve thermal comfort. In different Lebanese climate zones, the use of lightweight concrete can significantly enhance the energy efficiency of buildings.
BUILDING SIMULATION
(2021)
Article
Construction & Building Technology
Vijaykumar Guna, Chandan Yadav, B. R. Maithri, Manikandan Ilangovan, Francois Touchaleaume, Benjamin Saulnier, Yves Grohens, Narendra Reddy
Summary: The study focused on enhancing the properties and performance of gypsum ceiling tiles by using a blend of wool and coir fibers. The reinforced gypsum showed higher strength, better moisture resistance, and improved flame resistance. Wool provided better moisture resistance while coir enhanced strength, making the tiles more environmentally friendly and cost-effective.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Thermodynamics
Ayman Karaki, Malek Mohammad, Eyad Masad, Marwan Khraisheh
Summary: This study investigates the thermal properties of lightweight concrete (LWC) and evaluates the performance of different analytical models in predicting the effective thermal conductivity. Experimental results show that the use of expanded perlite can significantly reduce the thermal conductivity of concrete, with the Woodside & Messmer model performing well.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Construction & Building Technology
Jian-Xin Lu, Peiliang Shen, Long Li, Hafiz Asad Ali, Yi Jiang, Chi Sun Poon
Summary: In this study, part of the mixing water was pre-located in the lightweight aggregates to produce a high-performance lightweight concrete. The pre-location of water resulted in an extremely low water-binder ratio paste, leading to the production of a high-performance lightweight concrete. The physical, thermal, and durability properties of high-performance cementitious composites were evaluated and compared based on the initial spatial dislocation of mixing water in two systems.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Peng Liu, Ao Luo, Lei Liu, Yongling Li, Sanling Zhang, Weiting Zhi, Dong Pan, Ying Chen, Zhiwu Yu
Summary: An orthogonal test was conducted to optimize the component design of aerated concrete, aiming to improve its strength, cracking resistance, and water absorption. The effects of cement content, water-binder ratio, foaming agent content, and polypropylene fiber content on the performance of aerated concrete were investigated, and the optimal composition was determined. The results showed that the dosage of foaming agent greatly influenced the dry density, compressive strength, thermal conductivity, and water absorption of aerated concrete.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Chemistry, Multidisciplinary
Juan Enrique Martinez-Martinez, Felipe Pedro Alvarez Rabanal, Mariano Lazaro, Mar Alonso-Martinez, Daniel Alvear, Juan Jose del Coz-Diaz
Summary: This study investigates the thermal properties of different types of structural lightweight concrete at varying temperatures and highlights the significant impact of moisture content, temperature, and porosity on these properties. The findings suggest a need to update Eurocodes 2 and 4 to better reflect the thermal properties of LWC.
APPLIED SCIENCES-BASEL
(2021)
Article
Chemistry, Physical
Haoran Ye, Guiyang Zheng, Shida Zuo, Qinghan Yu, Changlei Xia, Yequan Sheng, Yang Shi, Danxia Wang, Jianzhang Li, Shengbo Ge
Summary: To solve the problems of plastic pollution and energy shortage, chitosan was used as an interfacial compatibilizer to modify traditional wood plastic composites (WPC), resulting in enhanced mechanical strength, thermal conductivity, and antibacterial properties. The optimal ratio of chitosan was found to be 10%. The modified WPC showed improved properties such as high tensile and flexural strength, water and corrosion resistance, UV resistance, and thermal stability. With its potential for sustainable development, WPC-10%CS can be widely used as a functional material both indoors and outdoors.
APPLIED SURFACE SCIENCE
(2023)
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
Construction & Building Technology
Payam Shafigh, Zakaria Che Muda, Salmia Beddu, As'ad Zakaria, Zaher Almkahal
Summary: The construction industry needs to consider both the mechanical and thermal performances of structural materials for energy-efficient buildings. There are conflicting properties between normal weight concrete (NWC) and lightweight aggregate concrete (LWAC). LWAC has high thermal efficiency but low mechanical strengths, while NWC has high mechanical strength but poor thermal efficiency. The inclusion of fibres in LWAC can improve its mechanical properties, but the thermal performance is not fully understood.
JOURNAL OF BUILDING ENGINEERING
(2022)
Review
Green & Sustainable Science & Technology
Y. El Mghouchi, T. Ajzoul, D. Taoukil, A. El Bouardi
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2016)
Article
Construction & Building Technology
Driss Taoukil, Abdelmajid El Bouardi, Friedrich Sick, Abdelaziz Mimet, Hassan Ezbakhe, Taib Ajzoul
CONSTRUCTION AND BUILDING MATERIALS
(2013)
Article
Construction & Building Technology
Driss Taoukil, Younes El Meski, Mohammed Lhassane Lahlaouti, Rabah Djedjig, Abdelmajid El Bouardi
Summary: This study investigates the feasibility of using Moroccan diatomite as a replacement for sand in mortars. It demonstrates that diatomite incorporation improves thermal insulation potential in mortar, despite a slight decrease in compressive and flexural strengths. The findings suggest that diatomite can be successfully used as insulating concrete.
JOURNAL OF BUILDING ENGINEERING
(2021)
Proceedings Paper
Energy & Fuels
Abdelbari Redouane, Driss Taoukil, Abdelmajid El Bouardi, Taib Ajzoul, Hassan Ezbakhe
PROCEEDINGS OF 2013 INTERNATIONAL RENEWABLE AND SUSTAINABLE ENERGY CONFERENCE (IRSEC)
(2013)