Article
Construction & Building Technology
Miao Yu, Zhi Yang, Zhanping You, Yansheng Luo, Jue Li, Liming Yang
Summary: An orthogonal test was designed to evaluate the skid resistance performance of asphalt pavement under cumulative wheel load and overload. Lab tests were conducted using the Tire pavement Dynamic Friction Analyzer (TDFA) to acquire real-time data of tire-pavement friction coefficient and pavement textures. The results showed that the pavement friction coefficients (COF) increased first and then decreased, while Mean Profile Depth (MPD) values fluctuated significantly. There was also a poor correlation between COF and MPD values. Additionally, the deterioration rate of pavement dynamic friction coefficient was faster and the final value was lower when heavy traffic was applied in the early stage compared to the middle and late stage of wear. The designed orthogonal test demonstrated the significant impact of total traffic volume, occurrence interval, and duration of heavy traffic on the COF value.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Green & Sustainable Science & Technology
Ahsen Hamid, Naveed Ahmad, Bilal Zaidi, Raja Abubakar Khalid, Imran Hafeez, Jawad Hussain, Anwar Khitab, Mehmet Serkan Kirgiz
Summary: Large amounts of waste glass generated globally contribute to environmental pollution and strain landfill capacities. This study investigates the use of waste borosilicate glass (BSG) as a replacement for aggregate particles in asphalt pavements. Various structural, functional, and durability parameters of the asphalt containing BSG were evaluated. The results showed that increasing BSG content reduces the required binder content, and 10% dosage of BSG provides maximum stability, dynamic modulus, and rut resistance. However, the addition of BSG negatively affects the fatigue resistance of the asphalt, particularly at higher dosages. Moreover, BSG has less affinity to adhere to bitumen, especially at dosages greater than 10%. On the other hand, skid resistance improves with increasing BSG content.
Article
Chemistry, Physical
Hao Liu, Yunyu Li, Jixin Li, Feng Wang, Longfan Peng, Chao Li, Tianlei Wang, Juntao Lin
Summary: This study evaluates the relationship between fiber types and mechanic performance of SMA-13 fiber asphalt mixture using polyester fiber, polypropylene fiber, and lignin fiber. The micro-surface characteristics of fiber and aggregates were studied by SEM and image analysis, and Marshall stability and splitting strength were used to measure the properties of the asphalt mixture. Field tests were conducted to evaluate the skid resistance of high-speed vehicles on the pavement.
Article
Construction & Building Technology
Sand Aldagari, Mohammad Al-Assi, Emad Kassem, Arif Chowdhury, Eyad Masad
Summary: Skid resistance is crucial for road safety, and this study developed predictive models for asphalt pavements and seal coat surfaces based on surface friction characteristics and aggregate properties. These models can help optimize mix design and estimate skid resistance over time to enhance road safety.
INTERNATIONAL JOURNAL OF PAVEMENT ENGINEERING
(2022)
Article
Construction & Building Technology
Tianhao Yan, Jia-Liang Le, Mihai Marasteanu, Mugurel Turos
Summary: This study investigates the probability distribution of field density in asphalt pavements by using an analytical model of gyratory compaction. The model takes into account the variability in compaction effort and is able to capture the features of field density distribution. The model has the potential to guide the asphalt mix design for achieving the desired field density.
INTERNATIONAL JOURNAL OF PAVEMENT ENGINEERING
(2022)
Article
Construction & Building Technology
Bo Zhou, Longjia Chu, Yuxiao Zhang, T. F. Fwa
Summary: This research demonstrates the significant influence of directional polishing effects on skid resistance in different directions caused by cornering traffic. The effect varies along different road segments, with unique characteristics observed on horizontal curves.
ROAD MATERIALS AND PAVEMENT DESIGN
(2023)
Article
Chemistry, Physical
Xiaosheng Wu, Qiwei Chen, Yanqing Li, Niya Dong, Huayang Yu
Summary: This study aims to investigate the skid resistance attenuation law of stone matrix asphalt (SMA) pavement. Different types of SMA-13 mixtures were tested to simulate real surface conditions of in-service SMA pavement. Results show that the skid resistance of SMA pavement experiences a short-term enhancement followed by a long-term weakening stage. The surface texture of SMA helps mitigate the impact of traffic load on skid resistance. Finite element analysis and pressure-sensitive film results indicate the potential of skid durability design based on the skid resistance attenuation law.
Article
Construction & Building Technology
Quang Tuan Nguyen, Van Phu Bui, Quang Phuc Nguyen
Summary: This paper focuses on the creep behavior of asphalt mixtures and its relationship with the complex modulus. By conducting 3D complex modulus tests and creep tests on three asphalt mixtures under different temperatures and frequencies, it is found that the simulations using the 2S2P1D and generalized Kelvin-Voigt models fit well with the experimental data.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Chemistry, Physical
Shuai Zhang, Rongxin Guo, Feng Yan, Ruzhu Dong, Chuiyuan Kong, Junjie Li
Summary: This study investigates the use of steel slag as a substitute for basalt in Stone Mastic Asphalt-13 (SMA-13) gradings and evaluates the performance of the mixes through laboratory tests and 3D scanning techniques. The results show that steel slag can effectively replace basalt in pavements, improving stability and reducing friction decay. Texture parameters can be used to describe steel slag asphalt pavements, and the study also found differences in peak height between steel slag and basalt mixes.
Article
Chemistry, Physical
Miao Yu, Yao Kong, Zhanping You, Jue Li, Liming Yang, Lingyun Kong
Summary: This study used a finite element model and ABAQUS software to investigate the friction performance between radial tires and asphalt pavement. The effects of pavement texture, tire parameters, and water film thickness on the tire-pavement contact force were analyzed through steady state rolling analysis and dynamic explicit analysis. The results provide theoretical references for safe driving.
Article
Construction & Building Technology
Abdullah Azzam, Mohammad Ali Khasawneh, Aslam Ali Al-Omari, Eyad Masad, Emad Kassem
Summary: The study aims to develop a probabilistic approach to determine the mean and variation in skid number in a pavement section, demonstrating the effectiveness of this approach by selecting a validated model. The results show that the probabilistic approach is useful for engineers to identify risks associated with skid resistance values falling below the required limit in a pavement section.
INTERNATIONAL JOURNAL OF PAVEMENT RESEARCH AND TECHNOLOGY
(2021)
Article
Engineering, Civil
Zhe Zeng, Kangjin Lee, Youngsoo Richard Kim
Summary: The study evaluated the accuracy of the ME pavement design guide at different analysis levels, showing that predicted undamaged master curves are consistently higher than measured values, and Levels 1, 2, and 3 can lead to significantly different damaged master curves. Therefore, for transportation agency practice, the Level 1 method is recommended.
TRANSPORTATION RESEARCH RECORD
(2021)
Article
Construction & Building Technology
Antonin du Tertre, Ahmet Serhan Kirlangic, Giovanni Cascante, Susan L. Tighe
Summary: The elastic modulus of an asphalt mixture depends on temperature and load frequency. A master curve can be constructed using laboratory tests or predictive models. The predictive approach estimates the modulus without laboratory tests but requires correction based on measured reference values. This study compares experimental results from ultrasonic surface waves and light weight deflectometer tests with predictive master curves, revealing that the model underestimates the modulus of asphalt mix.
INTERNATIONAL JOURNAL OF PAVEMENT ENGINEERING
(2022)
Article
Construction & Building Technology
Alexandros Margaritis, Tine Tanghe, Stefan Vansteenkiste, Joelle De Visscher, Ann Vanelstraete
Summary: This study assesses the compactability and workability of asphalt mixtures by considering key mix design factors. Different temperatures and mastic compositions were used to analyze the changes in compactability and workability. The analysis of the gyratory compaction data using a sigmoidal curve model revealed the significant impact of mastic film thickness on the compaction process. Two space diagrams, C0 versus CCIP and beta 4/beta 3 versus beta 3, were proposed for the assessment of compactability and workability.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Construction & Building Technology
X. Q. Le, M. L. Nguyen, P. Hornych, Q. T. Nguyen
Summary: Accelerated full-scale pavement tests are efficient tools for studying pavement behavior, and this paper presents an experimental study on asphalt pavements with different interface conditions. The study analyzes the fatigue behavior and level of damage of the pavements, and introduces a new damage ratio to monitor the general pavement behavior.
INTERNATIONAL JOURNAL OF PAVEMENT ENGINEERING
(2022)
Article
Meteorology & Atmospheric Sciences
Mei Liang, Jianjun Xu, Johnny C. L. Chan, Chunlei Liu, Hua Xu
Summary: Previous studies have shown that equatorial Pacific Ocean warming can be separated into spring and summer modes based on the onset time of El Nino events, which in turn influences tropical cyclone activity. Different onset times lead to different changes in TC formation location and intensity in the Western North Pacific, with spring mode showing significant eastward and equatorward shifts, particularly in intense TCs, and summer mode only showing an eastward shift. The onset time of El Nino events is suggested as a forecasting indicator for TC genesis position and intensity over the WNP.
INTERNATIONAL JOURNAL OF CLIMATOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Siqi Chen, Feng Xu, Yu Zhang, Guiling Ye, Jianjun Xu, Chunlei Liu
Summary: Forecasting the intensity of typhoons is challenging and subject to various factors, with the selection of physical parameterization schemes playing a crucial role. This study investigated the effects of horizontal mixing length and planetary boundary layer schemes on typhoon intensity prediction. Results indicated that increasing horizontal mixing length strengthened typhoon intensity, while the choice of PBL scheme also had an impact on the simulated typhoon intensity.
FRONTIERS OF EARTH SCIENCE
(2022)
Article
Geosciences, Multidisciplinary
Chunlei Liu, Yasong Li, Shengwei Cao, Wanli Wang, Jing Li
Summary: This study analyzed the hydrochemical and environmental isotopic characteristics of geothermal water in Xiamen Province in the southeast coastal areas of China, revealing the recharge of geothermal water circulation and the genetic patterns of geothermal resources.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Materials Science, Ceramics
Xiang-Mei Wang, Jia-Min Wu, Li Fang, Yuan-Qi Yang, Chun-Lei Liu, Zi-Xuan He, Chang-An Wang, Yu-Sheng Shi
Summary: In this work, a 0.9Al(2)O(3)-0.1TiO(2) ceramic sample with good microwave dielectric properties and complex structures was successfully fabricated using digital light processing (DLP). The study explored the relationship between dispersant content and the rheological behavior of the slurry. It was found that a dispersant content of 3.0 wt% resulted in a high solid loading (50 vol%) and low viscosity (2.9 Pa s) 0.9Al(2)O(3)-0.1TiO(2) slurry.
CERAMICS INTERNATIONAL
(2023)
Article
Energy & Fuels
Wanli Wang, Guiling Wang, Feng Liu, Chunlei Liu
Summary: This study investigates the ground thermal conditions in the central North China Plain (NCP) and finds that the piedmont alluvial plain has a higher potential for shallow geothermal exploitation. The study also compares the thermal conductivity results obtained from laboratory measurements and thermal response tests, recommending different methods for determining the ground thermal properties in different regions.
Article
Meteorology & Atmospheric Sciences
Timothy Andrews, Alejandro Bodas-Salcedo, Jonathan M. Gregory, Yue Dong, Kyle C. Armour, David Paynter, Pu Lin, Angshuman Modak, Thorsten Mauritsen, Jason N. S. Cole, Brian Medeiros, James J. Benedict, Herve Douville, Romain Roehrig, Tsuyoshi Koshiro, Hideaki Kawai, Tomoo Ogura, Jean-Louis Dufresne, Richard P. Allan, Chunlei Liu
Summary: The pattern of sea-surface temperature change has a significant impact on radiative feedback. The Earth experienced warming with feedbacks consistent with long-term climate sensitivity feedbacks over the historical record. However, unusual trends in tropical Pacific SSTs and cooling in the Southern Ocean post 1980 led to climate feedback becoming uncorrelated with expected long-term CO2 increase, indicating lower climate sensitivity.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2022)
Article
Environmental Sciences
Lin Wu, Guowei Shi, Yaci Liu, Yasong Li, Chunlei Liu, Qichen Hao, Wenzhi Cao, Qingsheng Li
Summary: This study reports the multi-media environmental distribution of pharmaceuticals in river water, coastal water, groundwater, and sediments from the Jin River to adjacent marine embayment in Southeast China. Antibiotics were the most detected pharmaceuticals, with oxytetracycline, ciprofloxacin, and enrofloxacin being the most ubiquitous. These antibiotics were more widely distributed in the coastal environment of Asia, especially China, compared to Europe, USA, and Australia. Sulfamethoxazole showed stronger sorption onto sediments and discharged wastewater and aquaculture were identified as the main sources of antibiotics in the environment. The risk assessment highlighted high risks posed by ciprofloxacin and sulfamethoxazole to specific microorganisms in different water sources.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Nursing
Fei Zhu, Wan Zhang, Chunlei Liu, Wanmin Qiang, Qian Lu
Summary: This study aimed to examine the mediating role of body surveillance and body shame in the relationship between self-compassion and body image disturbance among young breast cancer patients. A total of 310 young women with breast cancer were recruited, and they completed self-report measurements of demographic and clinical characteristics, self-compassion scale, body image self-rating questionnaire for breast cancer, body surveillance scale, and body shame scale. The results showed that lower self-compassion was significantly associated with greater body image disturbance, and there was a positive correlation between body image disturbance, body surveillance, and body shame. Self-compassion indirectly predicted body image disturbance through the chain mediation of body surveillance and body shame. Improving patients' self-compassion may be an effective measure to reduce body image disturbance by reducing excessive body surveillance and body shame.
ASIA-PACIFIC JOURNAL OF ONCOLOGY NURSING
(2023)
Article
Biochemistry & Molecular Biology
Chunlei Liu, Hao Huang, Pengyi Yang
Summary: Multimodal single-cell omics technologies allow for simultaneous profiling of multiple molecular programs in individual cells, providing a new level of resolution for studying biological systems. However, integrating and analyzing multimodal single-cell omics data presents challenges due to the lack of suitable methods. In this study, we propose Matilda, a multi-task learning method that can perform data simulation, dimension reduction, cell type classification, and feature selection in a unified framework. We compare Matilda with other state-of-the-art methods using datasets from popular multimodal single-cell omics technologies, and show its utility in addressing multiple key tasks in integrative analysis.
NUCLEIC ACIDS RESEARCH
(2023)
Article
Genetics & Heredity
Juan Liu, Jihong Hu, Yaqing Duan, Rong Qin, Chunguang Guo, Hongtao Zhou, Hua Liu, Chunlei Liu
Summary: A novel missense mutation Gln900Arg in NEDD4L was identified in a patient with PVNH7, indicating a potential association between the mutation and the disorder. Functional experiments demonstrated that the mutation resulted in increased ubiquitination activity and protein degradation. This study highlights the importance of expanding the pool of evidence related to NEDD4L in patients with PVNH and related phenotypes.
MOLECULAR GENETICS & GENOMIC MEDICINE
(2023)
Article
Engineering, Manufacturing
Quanpei Du, Chao Zhang, Chun-Lei Liu, Wenjing Zhou, Fangfang Zeng, Kanghua Li, Kailun Zou, Guifen Fan, Shenglin Jiang, Qiuyun Fu, Jia-Min Wu, Guangzu Zhang
Summary: This study innovatively utilizes the VPP technique to fabricate highly textured and 3D-structural barium titanate piezoelectric ceramics. Compared to random ceramics, printed textured barium titanate ceramics exhibit smaller dielectric permittivity, larger piezoelectric coefficient, significantly increased piezoelectric voltage coefficient g33 and figure of merit d33xg33, and improved piezoelectric output performance.
ADDITIVE MANUFACTURING
(2023)
Article
Nursing
Fei Zhu, Chunlei Liu, Wan Zhang, Wanmin Qiang, Xiaoping Yin, Qian Lu
Summary: This study investigated the relationship between self-compassion, coping styles, and body image disturbance among young breast cancer survivors in China. Results showed that different coping styles mediated the association between self-compassion and body image disturbance. This study provides support for understanding the mechanism between self-compassion and body image disturbance, and suggests comprehensive interventions to reduce body image disturbance.
Article
Psychology, Multidisciplinary
Chunlei Liu, Yuhong Lin, Chaoqun Ye, Jiaqin Yang, Wenguang He
Summary: In this study, the impact of metacontrol on creativity was examined from the perspective of individual differences. The results showed that individuals with high metacontrol exhibited superior creative performance in both divergent and convergent thinking tasks, as well as differences in EEG measures such as larger P1 and P3 amplitudes and smaller alpha ERD. These findings suggest that metacontrol plays a significant role in the idea generation process and that individuals with high metacontrol can adapt their cognitive control strategies to meet the demand for creative idea generation.
JOURNAL OF INTELLIGENCE
(2023)
Article
Water Resources
Chun-lei Liu, Chen-ming Lu, Ya-song Li, Qi-chen Hao, Sheng-wei Cao
Summary: This study focuses on the analysis of heat accumulation model in Hongtang Area of Xiamen, exploring the distribution of main and secondary faults, and delineating the primary and secondary target areas for geothermal exploration in the region. The reliability of the model and target areas was confirmed through geothermal borehole testing.
JOURNAL OF GROUNDWATER SCIENCE AND ENGINEERING
(2022)
Article
Materials Science, Ceramics
Li Meng, Huang Hailu, Wu Jiamin, Liu Chunlei, Wu Yaru, Zhang Jingxian, Shi Yusheng
Summary: Si3N4 ceramics were successfully prepared using digital light processing technology. The effects of solid loading on the ceramics' performance were studied, and the optimal solid loading was determined, providing a foundation for the photocuring of non-oxide ceramics.
JOURNAL OF INORGANIC MATERIALS
(2022)
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)
