Article
Thermodynamics
Aditya Kumar Singh, Pushpendra Kumar Singh Rathore, R. K. Sharma, Naveen Kumar Gupta, Rajan Kumar
Summary: This study demonstrates the impact of integrating eutectic Phase Change Material (PCM) in concrete on its thermal, physical, and mechanical properties. The researchers successfully prepared a Shape Stabilized Composite Phase Change Material (SSCPCM) by mixing eutectic PCM with Zeolite, which effectively prevented PCM leakage and showed stability in chemical, physical, and morphological properties. The integration of SSCPCM in concrete resulted in Thermal Energy Storage Concrete slabs, which exhibited excellent thermal behavior in real outdoor environments.
Article
Thermodynamics
Achutha Tamraparni, Alison Hoe, Michael Deckard, Chen Zhang, Nathan Malone, Alaa Elwany, Patrick J. Shamberger, Jonathan R. Felts
Summary: Phase change materials store thermal energy as latent heat and can be combined with high thermal conductivity metals to create composites with high power density and large energy storage capacity. This study provides a theoretical framework to design and optimize cylindrical composites with three figures of merit - minimization of temperature rise, maximization of effective volumetric heat capacity, and maximization of effective heat capacity based on mass.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2023)
Article
Thermodynamics
Osman Gencel, Serkan Subasi, Abid Ustaoglu, Ahmet Sari, Muhammed Marasli, Gokhan Hekimoglu, Erol Kam
Summary: This investigation focuses on manufacturing a novel thermal energy storage (TES) material by combining microencapsulated phase change material (MPCM) with foam concrete (FC). The results show that the new material has improved thermal mass and advantageous physico-mechanical properties. It also has the ability to regulate room temperature, lowering it during the day and increasing it after sunset.
Review
Construction & Building Technology
Chaoen Li, Xiaodong Wen, Wei Cai, Hang Yu, Dongjing Liu
Summary: This paper summarizes the main characteristics of phase change materials (PCMs) in building envelopes and comprehensively discusses the design and shape stabilization methods of composite PCMs. The methods to address season adaptable problems and the test and heat transfer mechanisms are also overviewed. It was found that using biomass-derived carbon as supporting material is a low cost, environmentally friendly way to fabricate outstanding performance composite PCMs, and adopting multi-PCMs is an important way to solve season adaptable problem. Finally, crucial conclusions and future recommendations are provided to guide scholars on research for further improvements.
JOURNAL OF BUILDING ENGINEERING
(2023)
Article
Construction & Building Technology
Dongdong Xu, Yun Huang, Wenwei Liu, Tong Sun, Meiju Zhang
Summary: This paper presents a new microencapsulated phase change material (MPCM) with high thermal conductivity and great enhancement in thermal conductivity. When added to phosphogypsum (PG), a composite PG-MPCM with good thermal storage capacity and compatibility is formed. The composite material maintains its thermal stability even after 2000 thermal cycles.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Energy & Fuels
Hongguang Zhang, Ziye Ling, Sili Zhou, Xiaoming Fang, Wenbo Zhang
Summary: The thermal energy storage technology based on phase change materials (PCMs) can solve the mismatch problem between thermal energy supply and demand, and improve energy utilization efficiency. In this paper, the authors propose a carbonized wood-based PCM with directional thermal conductivity by carbonizing pine at 1000 degrees C. The axial thermal conductivity of the composite PCM is 1.86 times than that of the radial direction, and the photo-thermal conversion efficiency reaches 83%. This work provides an innovative idea for the design and manufacture of PCM related to low and medium temperature solar thermal energy storage.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2023)
Article
Green & Sustainable Science & Technology
Fatih Kocyigit, Muhammed Bayram, Gokhan Hekimoglu, Vedat Veli Cay, Osman Gencel, Abid Ustaoglu, Ahmet Sari, Ertugrul Erdogmus, Togay Ozbakkaloglu
Summary: This study aims to develop a novel and environmentally friendly foam concrete incorporating capric acid saturated waste basalt powder. The results show that this foam concrete has high latent heat of phase change and can effectively store and regulate thermal energy. This material can be considered as an environmentally friendly building material for thermoregulation and energy conservation.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Thermodynamics
Alison Hoe, Michael T. Barako, Achutha Tamraparni, Chen Zhang, Alaa Elwany, Jonathan R. Felts, Patrick J. Shamberger
Summary: This study develops an analytical framework for optimizing the design of rectangular and cylindrical phase change material composite heat sinks. The research reveals two design regimes in finite volumes where thermal buffering capacity can be limited by the rate of thermal energy absorption or by the total thermal capacitance of the system.
APPLIED THERMAL ENGINEERING
(2022)
Article
Energy & Fuels
P. Singh, R. K. Sharma, Gokhan Hekimoglu, Ahmet Sari, Osman Gencel, V. V. Tyagi
Summary: Fatty acids are a preferred choice for latent heat thermal energy storage (LHTES), but their limited applications due to low thermal conductivity and container requirements have been addressed by using methyl palmitate (MP) doped with carbon nanofibers (CNFs) and expanded waste glass (EWG) to form composite phase change materials (CPCMs). Doping CNFs into CPCMs enhanced their conductivity and shortened the charging/discharging periods without affecting their LHTES properties significantly.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Construction & Building Technology
Qudama Al-Yasiri, Marta Szabo
Summary: This research examines the thermal behavior of concrete brick-based PCM layer/capsules in southern Iraq during hot summer days. Three bricks were tested, with one brick integrated with a PCM layer, another integrated with PCM capsules, and a third one without PCM for comparison. The thermal performance and mechanical strength decline of each brick were evaluated. The results showed that the PCM layer and capsules improved the thermal performance of the bricks, but had different effects on mechanical strength.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2023)
Article
Energy & Fuels
Andreas Heinz, Christoph Moser
Summary: Thermal energy storage using phase change material (PCM) is crucial for transitioning to renewable energy sources. This study analyzed a PCM storage system with non-spherical PCM modules and successfully validated the simulation model with experimental results.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Construction & Building Technology
Pengfei Wei, Guansheng Yin, Minghui Shi, Wanqi Zhang, Jintao Zhang, Wenqian Hao, Junjie Feng
Summary: This experimental study developed a phase change foamed concrete (PCFC) with suitable temperature regulation and heat storage capabilities. The optimum mass ratio of LA to HD in the binary eutectic is 53:47, and the maximum adsorption ratio of fumed silica for LA-HD is 60% (wt). The PCFC with 30% composite PCM exhibits the best thermal properties and temperature regulation performance.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Energy & Fuels
Guohao Du, Xin Lai, Jianfeng Hu, Zhengguo Zhang
Summary: In this study, paraffin-based composite phase change materials (PCMs) were successfully fabricated by embedding paraffin wax (PW) into boron nitride@chitosan aerogel (BNCA) with a porous structure. The BNCA/PW composite exhibited high thermal conductivity, excellent shape stability, and broad application prospects in energy storage of electronic systems.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2022)
Article
Engineering, Environmental
Qingchuan Zou, Zonghui Dong, Xiaohong Yang, Jinchuan Jie, Xizhong An, Ning Han, Tingju Li
Summary: The self-encapsulation strategy of eutectic Al-Si PCM by constructing 3D-honeycomb-SiC reinforced Al matrix composite with Si-rich Si-poor cladding structure can fundamentally address the corrosion issue and exhibit excellent thermal conductivity and energy storage capacity. This strategy also leads to significant improvements in discharge energy density and charge and discharge efficiency compared to traditional encapsulation methods in metallurgical industry.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Construction & Building Technology
Dileep Kumar, Morshed Alam, Jay Sanjayan, Muhammad Harris
Summary: Phase change materials (PCM) can reduce energy consumption and improve thermal comfort in buildings. However, there are limitations in integrating PCM into construction materials, primarily due to the selection of suitable porous materials. This study aimed to select the most suitable porous material for developing Form Stable PCM (FSPCM) cement composite for concrete panels in building envelopes. Five different porous materials were considered based on their porosity, geometry, and surface morphology, and the performance of the synthesized FSPCM composite was evaluated. The study revealed that silica aerogel granules (SAG) had the highest PCM absorption capacity, while recycled expanded glass (REG) had lower absorption capacity. The Capric Acid/Hydrophobic expanded Perlite (CAHEP) showed the best overall performance in terms of absorption, thermal conductivity, strength, thermal inertia, latent heat storage, and thermal storage.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2023)
Article
Engineering, Civil
Huu-Tai Thai, Quang Vu Ho, Wenqian Li, Tuan Ngo
Summary: This study investigates the structural robustness of modular high-rise buildings through numerical modeling and parametric analysis, and proposes design recommendations for improving their stability.
STRUCTURE AND INFRASTRUCTURE ENGINEERING
(2023)
Article
Construction & Building Technology
Hongxiang Gou, Massoud Sofi, Nilufer Ozyurt, Zhiyuan Zhou, Hongbo Zhu, Priyan Mendis
Summary: In this study, eco-friendly lightweight high-strength engineered cementitious composites (ELHECC) were developed using lightweight sand fines (LSF) and fly ash cenospheres. The effects of LSF content and pretreatment methods on mechanical properties, shrinkage, and micro-mechanism of ELHECCs were investigated. The results showed that increasing the content of LSF slightly reduced compressive strength but improved the tensile properties and ductility of ELHECCs.
JOURNAL OF SUSTAINABLE CEMENT-BASED MATERIALS
(2023)
Article
Construction & Building Technology
Shengping Li, Behzad Rismanchi, Lu Aye
Summary: This study predicts the future energy use in Australian residential buildings using a scenario-based approach. The results show that achieving net-zero emissions by 2050 is possible with stringent energy-efficient strategies and increased renewable energy supply. The residential building sector plays a crucial role in reaching the net-zero emissions target.
BUILDING AND ENVIRONMENT
(2023)
Review
Polymer Science
Sarah Fernando, Chamila Gunasekara, Amin Shahpasandi, Kate Nguyen, Massoud Sofi, Sujeeva Setunge, Priyan Mendis, Md. Tareq Rahman
Summary: This review summarizes the research conducted so far on cement-based composites reinforced with waste paper-based cellulose fibres, focusing on their composition, mechanical properties, and durability characteristics. The properties of the raw materials significantly affect the formation of the cement composite binders. Silica and magnesium compounds have positive effects on the setting of the cement composite when combined with waste paper cellulose fibres. The dispersion of fibres in the matrix is crucial for developing composites with well-balanced mechanical properties using waste paper cellulose fibres. Water quantity plays a role in improving fibre dispersion, but higher porosity and voids affect the strength properties beyond an optimum water-to-cement ratio.
Article
Environmental Sciences
Fei Fu, Xia Jia, Dan Wu, Qiuji Zhao, Han Fang, Liwei Lin, Lu Aye
Summary: Metro stations are important resources for urban development, influencing changes in surrounding land use. Predicting and simulating these changes can provide a scientific basis for urban planning. This study used the CA-Markov model to predict land use changes based on point of interest density and station accessibility, and proposed optimized strategies for different metro stations.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2023)
Article
Thermodynamics
Milad Mohsenzadeh, Lu Aye, Philip Christopher
Summary: This article proposes a new correlation to estimate the convective heat transfer coefficient inside the evaporation chamber of a single slope solar still with a low humidity level. Existing models neglect the effect of vapour pressure and fail to accurately predict the convection in higher water temperatures or in unsaturated humidity levels. The new correlation, based on a theoretical approach and experimental data, shows improved accuracy in predicting daily water yield under different humidity levels and aspect ratios.
APPLIED THERMAL ENGINEERING
(2023)
Article
Construction & Building Technology
Seyedmostafa Mousavi, Behzad Rismanchi, Stefan Brey, Lu Aye
Summary: The study evaluates the thermal efficiency and energy performance of a PCM-RCC system and finds that it improves energy efficiency and indoor environmental quality. The study also examines the thermal behavior of PCM ceiling panels and the cooling energy delivered during charging-discharging cycles. The results show that the system can fully recharge PCM panels with 4-5 hours of chilled water circulation overnight, and achieves thermal comfort for 80% of the occupancy time.
BUILDING AND ENVIRONMENT
(2023)
Article
Construction & Building Technology
Tianchun Wang, Rackel San Nicolas, Tuan Ngoc Nguyen, Ali Kashani, Tuan Ngo
Summary: Recycled glass is a sustainable alternative to sand in concrete, but the alkali-silica reaction (ASR) poses challenges for its widespread adoption. This study investigates the long-term ASR expansion of mortar containing glass through experimental and numerical analyses. Experimental results show that the size fraction of 1.18-2.36 mm caused the highest ASR expansion, while sizes smaller than 0.6-1.18 mm were found to be innocuous. The validated numerical model accurately predicts ASR expansion and reveals that internal damage becomes more homogeneous with increasing content of reactive aggregate.
CEMENT & CONCRETE COMPOSITES
(2023)
Article
Engineering, Civil
Rajendra Prasad Bohara, Steven Linforth, Huu-Tai Thai, Tuan Nguyen, Abdallah Ghazlan, Tuan Ngo
Summary: This paper optimises the design of an auxetic structure called the hourglass structure (HGS) to improve its protection performance. A 3D numerical model is developed and validated through experiments, and then automated numerical analyses are conducted with randomly generated design variables to determine the best compromise design. The optimized HGS design outperforms the baseline structure under both quasi-static and blast loadings, making it suitable for high-performance protective sandwich structures.
ENGINEERING STRUCTURES
(2023)
Article
Thermodynamics
Seyedmostafa Mousavi, Behzad Rismanchi, Stefan Brey, Lu Aye
Summary: The recent increase in space cooling energy demand has adversely affected global building energy use patterns due to the massive use of air-conditioning systems. To address this growing cooling demand, innovative cooling systems are needed. The PCM-RCC has gained popularity as it offers more efficient space cooling and demand-side flexibility. To assist professionals in improving designs and operating settings, a transient simulation model of PCM-RCC has been developed and validated in this study. The validated model allows for reliable investigation of PCM-RCC's potentials in peak load shifting, energy savings, and enhanced thermal comfort.
BUILDING SIMULATION
(2023)
Article
Engineering, Civil
Saeid Charani Shandiz, Behzad Rismanchi, Greg Foliente, Lu Aye
Summary: This paper presents a systematic approach to energy master planning (EMP) of net-zero emissions communities via probabilistic analysis of different energy provision portfolios. The case project of a new university satellite campus demonstrates the financial feasibility of a resilient energy system that also meets a net-zero emissions objective, with only a modest increase in costs compared to a reference solution.
SUSTAINABLE AND RESILIENT INFRASTRUCTURE
(2023)
Article
Construction & Building Technology
Nourehan Wahba, Behzad Rismanchi, Ye Pu, Lu Aye
Summary: The aim of this study is to improve the efficiency of HVAC systems by using a linear control approach. The researchers propose using the Koopman operator combined with Machine Learning to model the nonlinear behavior of thermal comfort indices. Their results show that the Koopman autoencoder can reproduce and predict data from the latent space, enabling offline system identification for zone thermal conditions and potentially improving HVAC feedback control systems.
BUILDING AND ENVIRONMENT
(2023)
Article
Green & Sustainable Science & Technology
Emily Ruth Suyanto, Massoud Sofi, Elisa Lumantarna, Lu Aye
Summary: This study compares different scenarios for processing waste photovoltaic panels at the end of their life in Australia, including landfill, traditional recycling, full-recovery, and modified full-recovery. Environmental and financial analyses were conducted using simplified methods. The results show that landfill is no longer the cheapest option due to increasing waste levies and landfill bans, and recovering more waste through full-recovery has the potential to save costs. The study also found that modified full-recovery has environmental benefits and focusing on reclaiming solar-grade silicon can generate higher revenue compared to traditional full-recovery.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Engineering, Civil
Abdolreza Ataei, Seyed Ali Mahmoudy, Mehran Zeynalian, Alireza A. Chiniforush, Tuan D. Ngo
Summary: Cold-formed steel (CFS) members have limitations in their application due to buckling and instability. This study proposed a novel demountable composite connection for prefabricated CFS structures. The connection's behavior was evaluated through push-out tests, and the results showed that higher thickness of CFS members exhibited superior strength and ductility. The importance of proportionate CFS section thickness for shear connectors was emphasized. The accuracy of a numerical model in simulating the observed behavior was confirmed, and appropriate formulas for predicting the ultimate load of the composite connection were proposed. Predictions by EC4, AISC, and AISI provisions were found to be significantly less accurate.
THIN-WALLED STRUCTURES
(2023)
Article
Construction & Building Technology
Mohsen Rezaei Shahmirzadi, Aliakbar Gholampour, Alireza Kashani, Tuan D. Ngo
Summary: This study investigates the use of geopolymer mixtures in concrete 3D printing to reduce cement consumption and natural resource exploitation. By adding alternative materials and thixotropic agents, the performance of the geopolymer mixtures was improved. The results show that replacing natural sand with lead smelter slag can increase compressive strength and decrease drying shrinkage. These findings are significant for improving the structural integrity of 3D printed products.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
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)
