Article
Construction & Building Technology
A. Azadeh, K. Ghavami, J. J. Garcia
Summary: Bamboo is a sustainable material with potential to replace high-contaminating materials, but improvements in properties are needed for acceptance in the engineering community. Heat exposure can enhance the dimension stability and resistance against pests of bamboo.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Construction & Building Technology
Yuan Zhang, Xupeng Ta, Shubing Qin
Summary: The effect of heat treatment on the physico-mechanical behavior of Laizhou dolomite marbles was investigated. The study found that the strength and stiffness of the marble decreased after heat treatment, and the degradation increased with higher heating temperatures. Mass loss and density did not significantly change before 600°C, but increased rapidly after 600°C. The reduction in P-wave velocity indicated the generation of microcracks due to heating. Thermal cracking damage and decomposition of the dolomite were the key factors in the degradation.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
Lei Yao, Chun-Cheng Zhu, Jiu-Xing Jiang, Bai-Bin Zhou
Summary: This study investigates the heat treatment effects on Ti3AlC2 ceramics. The results show that the heat treatment improves the strength and content of Ti3AlC2, but reduces the hardness. The optimal mechanical properties are achieved after heat treatment at 1250°C.
Article
Polymer Science
Yuanming Chen, Hongcheng Feng, Yuanzhang Su, Jiaqi Li, Zhenlin Xu, Yifeng Li, Nengbin Li, Yaozong He, Yan Hong, Shouxu Wang, Guoyun Zhou, Chong Wang, Yongjie Du, Wei He
Summary: In this study, a three-step process was proposed to improve the peel strength of liquid crystal polymer (LCP) to copper. The process involved treating the surface of LCP with oxygen plasma and oxidizing and coating the surface of copper with a silane coupling agent. The samples prepared by this process showed high peel strength and could reduce product thickness and lamination temperature.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Forestry
James Edelbert C. Ramos, Juanito P. Jimenez, Menandro N. Acda
Summary: The lamination process of thermally modified giant bamboo arc segments was investigated in this study. The results showed that thermal modification treatments reduced hygroscopicity and improved dimensional stability of the laminates. However, the treatments had little or no effect on the compression, tensile shear strength, and modulus of elasticity of the laminates, except for a significant reduction in modulus of rupture. The laminates can be further processed into bamboo lumber for durable and sustainable building material applications.
EUROPEAN JOURNAL OF WOOD AND WOOD PRODUCTS
(2022)
Article
Polymer Science
Yushuang Miao, Chenxia Fang, Dan Shi, Yiguo Li, Zongbao Wang
Summary: The coupling effects of boron nitride (BN) addition and heat treatment on the crystallization and mechanical properties of poly (3-hydroxybutyric-co-3-hydroxyvaleric acid) (PHBV) were investigated. BN addition significantly increased the nucleation density and cold crystallization temperature, thus increasing the crystallization rate of PHBV. The heat treatment rearranged the molecular chain of PHBV, promoting the uniform distribution of amorphous layers and reducing molecular chain entanglement, contributing to improved toughness of PHBV and PHBV/BN composites.
Article
Pharmacology & Pharmacy
Hassana Hsein, Charbel Madi, Vincent Mazel, Pierre Tchoreloff, Virginie Busignies
Summary: Freeze-dried biopharmaceutical products are commonly used for improving stability and storage conditions. However, research is now focused on developing alternative dosage forms for oral administration. This study evaluates the compaction behavior of freeze-dried trehalose powder and demonstrates its potential for tablet formulation with specific properties.
INTERNATIONAL JOURNAL OF PHARMACEUTICS
(2023)
Article
Materials Science, Paper & Wood
Xiaopeng Bai, Daochun Xu, Wendi Sun, Ziyu Diao
Summary: This study characterized the physical and mechanical properties of Sapindus mukorossi seed using a combination of experiments and simulations. The results showed that the density, Poisson's ratio, and Young's modulus of the seed were relatively consistent, indicating stable material properties. The proposed method provides a new direction for studying the mechanical properties of biomaterials.
Article
Construction & Building Technology
Zhen Shyong Yap, Nur Hafizah A. Khalid, Zaiton Haron, Wai Hoong Khu, Su Hoe Yeak, Mugahed Amran
Summary: Recent developments in lightweight concrete have led to a renewed interest in incorporating fibers in concrete. However, research on the specific application of rock wool fiber in lightweight concrete is lacking. This study investigates the physical and mechanical characteristics of lightweight concrete with the inclusion of rock wool fibers in different water-cement ratios.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Polymer Science
Yuanyuan Zhang, Xuanhua Li, Shaohui Guo, Bingqing Wei
Summary: Poly(2-ethyl-2-oxazoline) (PEOX) blends with hydrophobic polymers such as poly(styrene-co-acrylonitrile) (SAN) and poly(4-vinylphenol) (PVPh) showed enhanced water resistance properties in a wet environment. The stable hydrogen bonding within the blend played a critical role in the hydrophobic modification, leading to improved water-resistant abilities. PVPh/PEOX blend demonstrated excellent performances in transparency and water resistance, making it a promising material for transparent coatings or adhesives in wet environments.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Construction & Building Technology
Bruno Menezes da Cunha Gomes, Nathalia Andrade da Silva, Anna Bernstad Saraiva, Lucas Rosse Caldas, Romildo Dias Toledo Toledo Filho
Summary: The environmental and mechanical performance of bamboo culms and strips were evaluated, with Moso bamboo performing better both environmentally and mechanically. The study provides important ecodesign information for the use of two bamboo species in various applications in the construction industry, contributing to a bioeconomy and low carbon pathway.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Engineering, Mechanical
Busra Duran, Jerome Cavoret, David Philippon, Fabrice Ville, Arnaud Ruellan, Frank Berens
Summary: This study analyzes the changes in the physicochemical properties and tribological performances of gear transmission oils during field operation, finding differences from traditional engine oils.
TRIBOLOGY INTERNATIONAL
(2024)
Article
Materials Science, Multidisciplinary
H. M. Wang, K. Li, G. R. Li, W. X. Su, S. S. Chou, T. T. Wu, X. Fan
Summary: The effect of DCT time on the microstructure and mechanical properties of spinning deformed A356 alloy subject to solution-DCT-aging multiplex heat treatment was studied. The best DCT time is 36 h, which is the critical time for the recrystallization process. After 36 h DCT, the alloy exhibits improved tensile strength, yield strength, elongation, and microhardness. Short-term DCT increases residual stress and dislocation density, while long-term DCT has the opposite effect.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Engineering, Biomedical
E. B. Benalcazar Jalkh, P. G. Coelho, L. Witek, E. T. P. Bergamo, A. C. O. Lopes, K. N. Monteiro, P. F. Cesar, L. A. Genova, P. N. Lisboa-Filho, J. L. B. Abreu, T. M. B. Campos, A. Canteenwala, E. A. Bonfante
Summary: The study revealed that Zirconia Toughened Alumina (ZTA) composite and high purity Alumina (Al2O3) exhibited high hydrothermal stability after aging, while the surface roughness and crystalline content of second-generation 3Y-TZP material (Zpex) significantly increased after artificial aging.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2021)
Article
Construction & Building Technology
Fukuan Dai, Ziwei Wang, Hankun Wang, Wenfu Zhang, Tuhua Zhong, Genlin Tian
Summary: This study investigates the structure and mechanical properties of Dendrocalamus sinicus to provide guidance for its exploitation. The results show that the vascular bundles are distributed with a quadratic function along the radial direction, and the fiber volume fraction and area of fiber sheath are high. The nanoindentation test reveals the excellent mechanical properties of Dendrocalamus sinicus, indicating its potential as a replacement for traditional building materials in the future.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Forestry
Maria Naruna Felix de Almeida, Graziela Baptista Vidaurre, Jose Eduardo Macedo Pezzopane, Jose Luiz Penetra Cerveira Lousada, Maria Emilia Calvao Moreira Silva, Ana Paula Camara, Sofia Maria Goncalves Rocha, Jean Carlos Lopes de Oliveira, Otavio Camargo Campoe, Rafaela Lorenzato Carneiro, Clayton Alcarde Alvares, Mario Tomazzelo-Filho, Francisco de Marques de Figueiredo, Ramon Ferreira Oliveira
FOREST ECOLOGY AND MANAGEMENT
(2020)
Article
Forestry
Sofia Maria Goncalves Rocha, Graziela Baptista Vidaurre, Jose Eduardo Macedo Pezzopane, Maria Naruna Felix Almeida, Rafaela Lorenzato Carneiro, Otavio Camargo Campoe, Henrique Ferraco Scolforo, Clayton Alcarde Alvares, Julio Cesar Lima Neves, Alexandre Candido Xavier, Marco Aurelio Figura
FOREST ECOLOGY AND MANAGEMENT
(2020)
Article
Forestry
Alice Soares Brito, Graziela Baptista Vidaurre, Jose Tarcisio da Silva Oliveira, Joao Gabriel Missia da Silva, Ramon Ferreira Oliveira, Ananias Francisco Dias Junior, Marina Donaria Chaves Arantes, Jordao Cabral Moulin, Marina Valin, Leandro De Siqueira, Edival Angelo Valverde Zauza
Summary: Planting spacing affects the wood properties of Eucalyptus clones, such as basic density, dry mass, diameter, vessel frequency, and wood fiber wall thickness, but does not influence the area of vessels, length and fraction of fiber wall, and other properties.
IFOREST-BIOGEOSCIENCES AND FORESTRY
(2021)
Article
Forestry
Ana Paula Camara, Graziela Baptista Vidaurre, Jean Carlos Lopes Oliveira, Paulo Eduardo Teodoro, Maria Naruna Felix Almeida, Joao Vitor Toledo, Ananias Francisco Dias Junior, Gabriela Aguiar Amorim, Jose Eduardo Macedo Pezzopane, Otavio Camargo Campoe
Summary: This study evaluated the wood traits of different eucalyptus genetic materials and their relationship with meteorological variables, revealing interactions between climate change and wood traits under rainfall exclusion conditions. The results showed that rainfall exclusion intensified the interrelations between climate and hydraulic architecture in Eucalyptus, highlighting the importance of understanding the dynamics between wood traits and climate for breeding programs.
FOREST ECOLOGY AND MANAGEMENT
(2021)
Article
Materials Science, Paper & Wood
Antonio Jose Vinha Zanuncio, Amelia Guimaraes Carvalho, Carlos Miguel Simoes da Silva, Vinicius Resende de Castro, Angelica de Cassia Oliveira Carneiro, Graziela Baptista Vidaurre, Paulo Fernando Trugilho, Maira Reis de Assis, Jose Cola Zanuncio
Summary: The study evaluated the impact of defoliating insects on wood quality and charcoal production, finding that damaged trees had decreased basic density and increased extractives and lignin content, resulting in lower charcoal productivity.
CELLULOSE CHEMISTRY AND TECHNOLOGY
(2021)
Article
Forestry
Fabricio Gomes Goncalves, Sabrina Dare Alves, Pedro Gutemberg de Alcantara Segundinho, Rafael Goncalves Esposito de Oliveira, Juarez Benigno Paes, Mariana Aya Suuchi, Izabella Luzia Silva Chaves, Roberto Carlos Quevedo, Djeison Cesar Batista, Yonny Martinez Lopez, Dercilio Junior Verly Lopes, Alice Soares Brito
Summary: The effect of adding thermally treated rice husk on the physical and mechanical properties and resistance to dry-wood termites of particleboard was evaluated. The results showed that adding 30% thermally treated rice husk improved the biological durability of the boards, but also increased water absorption.
EUROPEAN JOURNAL OF WOOD AND WOOD PRODUCTS
(2022)
Article
Green & Sustainable Science & Technology
Felipe Gimenes Rodrigues Silva, Alexandre Rosa dos Santos, Nilton Cesar Fiedler, Juarez Benigno Paes, Rodrigo Sobreira Alexandre, Plinio Antonio Guerra Filho, Rosane Gomes da Silva, Marks Melo Moura, Evandro Ferreira da Silva, Samuel Ferreira da Silva, Saira G. de Oliveira Santos Rodrigues Silva, Raphael Maia Aveiro Cessa, Washington Amaral Ferreira, Fabio Goncalves Marinho
Summary: This study analyzed the temporal vegetation dynamics and its relationship with rainfall and fire occurrence in Indigenous lands in the Cerrado-Amazonia Ecotone of Mato Grosso state, Brazil. The results revealed significant correlations between NDVI and rainfall, as well as NDVI and burnt area. Seasonal trend analysis showed diverse vegetation responses in this biome, with different phytophysiognomy and seasonal vegetation phases. The findings provide insights for studying other global biomes.
Article
Construction & Building Technology
Pedro Nico de Medeiros Neto, Juarez Benigno Paes, Fabricio Gomes Goncalves, Yonny Martinez Lopez, Edy Eime Pereira Barauna, Libania da Silva Ribeiro
Summary: This study aimed to investigate the relationship between the biological resistance of seven eucalyptus wood species to xylophagous termites and the physicochemical characteristics of the wood under laboratory conditions. The results showed that the wood species with higher extractives content exhibited higher resistance to termite attack, while those with lower extractives content were more susceptible to attack.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Construction & Building Technology
Yonny Martinez Lopez, Fabricio Gomes Goncalves, Juarez Benigno Paes, Donatian Gustave, Pedro Gutemberg de Alcantara Segundinho, Joao Vicente de Figueiredo Latorraca, Emilly Soares Gomes da Silva, Anna Clara Theodoro Nantet, Cleyton Machado Prata Filho
Summary: The effects of technological processes on the physical-mechanical properties and flammability of wood plastic composites were evaluated. The type of technological process was found to influence the physical-mechanical properties and flammability. The extrusion and injection processes improved dimensional stability and resistance to deformation, while density was a determining factor in the mechanical properties. Additionally, the boards obtained by extrusion showed self-extinguishing properties, while those obtained by injection and compression were prone to ignition.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Materials Science, Paper & Wood
Allan Ewerton Rezende Euflosino, Juarez Benigno Paes, Arlon Bastos da Rosa, Marina Donaria Chaves Arantes, Fabricio Gomes Goncalves, Alexandre Florian da Costa, Fernanda Dalfior Maffioletti
Summary: This study evaluated the potential for pre-extraction of chromated copper arsenate (CCA-C) treated wood and its application in combustion, landfilling, or agricultural use. The results showed that the extraction method used had better results for wood, but the process released oxides, making the wood residues hazardous even after the removal of the preservative.
JOURNAL OF WOOD CHEMISTRY AND TECHNOLOGY
(2022)
Article
Materials Science, Paper & Wood
Thais Mendes Brito, Glaucileide Ferreira, Joao Gabriel Missia da Silva, Adriano Ribeiro De Mendonca, Humberto Fantuzzi Neto, Juarez Benigno Paes, Djeison Cesar Batista
Summary: This study assessed the biological resistance of thermally modified eucalyptus and teak short-rotation wood. The thermal modification did not improve the resistance against brown-rot and white-rot fungi, but it did improve the resistance against subterranean and dry-wood termites. Teak showed higher resistance than eucalyptus for both untreated and thermally modified wood.
WOOD MATERIAL SCIENCE & ENGINEERING
(2023)
Article
Forestry
Larissa Goncalves Moraes, Michael Douglas Roque Lima, Gabriel Assis-Pereira, Delman de Almeida Goncalves, Graziela Baptista Vidaurre, Lina Bufalino, Fernanda Trisltz Perassolo Guedes, Mario Tomazello-Filho, Thiago de Paula Protasio
Summary: The spacing of 3.0 x 3.0 m in Tachigali vulgaris planting can reduce variability in wood properties and increase the proportion of medium-density wood, while forking increases the proportion of low-density wood. Further investigation is needed to understand how silviculture affects wood quality for potential energy crops in the Amazon region.
TREES-STRUCTURE AND FUNCTION
(2023)
Article
Materials Science, Paper & Wood
Thais Mendes Brito, Jessica Sabrina Silva Ferreira, Glaucileide Ferreira, Joao Gabriel Missia da Silva, Adriano Ribeiro de Mendonca, Humberto Fantuzzi Neto, Juarez Benigno Paes, Djeison Cesar Batista
Summary: This study evaluated the effect of a closed system thermal modification process on physical and mechanical properties of eucalypt and teak short-rotation wood. The results showed that thermal modification reduced mechanical resistance and hygroscopicity while increasing dimensional stability of wood. Teak was found to be more resistant to failure in static bending, while eucalypt wood exhibited higher resistance to compression parallel to the grain.
INTERNATIONAL WOOD PRODUCTS JOURNAL
(2023)
Article
Forestry
Rhagnya Sharon Ferreira Martins, Fabricio Gomes Goncalves, Roberto Carlos Costa Lelis, Pedro Gutemberg Alcantara Segundinho, Amanda Mota Nunes, Graziela Baptista Vidaurre, Izabella Luzia Silva Chaves, Sabrina Barros Santiago
SCIENTIA FORESTALIS
(2020)
Article
Forestry
Ana Paula Camara, Graziela Baptista Vidaurre, Suellen Rios Martins, Joao Gabriel Missia da Silva, Humberto Fantuzzi Neto, Jean Carlos Lopes de Oliveira, Amelia Guimaraes Carvalho, Jose Cola Zanuncio, Leandro de Siqueira
SOUTHERN FORESTS-A JOURNAL OF FOREST SCIENCE
(2020)
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)
