Article
Energy & Fuels
B. Srinivasaraonaik, Shishir Sinha, Lok Pratap Singh
Summary: The experimental results show that the incorporation of MPCM in cement paste alters the physical parameters of the material and significantly affects thermal comfort. These changes include variations in parameters such as compressive strength, bulk density, thermal conductivity, and specific heat capacity, which can improve the thermal comfort of the cement paste.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Construction & Building Technology
Sarra Drissi, Kim Hung Mo, Augusto Cannone Falchetto, Tung-Chai Ling
Summary: The study found that different mixing speeds mainly led to damage of mPCM particles and consequent leakage of phase change material. Additionally, the leakage had a greater impact on early age compressive strength compared to 28-day compressive strength.
CEMENT & CONCRETE COMPOSITES
(2021)
Article
Construction & Building Technology
Ons Hamdaoui, Oualid Limam, Laurent Ibos, Atef Mazioud
Summary: Posidonia-Oceanica fibers can enhance the insulating properties of hardened cement paste, reduce thermal conductivity, increase tensile and compressive strengths, and improve fracture toughness. However, high fiber volume fractions may lead to fiber agglomeration and a decrease in mechanical properties.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Construction & Building Technology
Jingxuan Cai, Jinghong Zhou, Cheng Liu, Kaiyuan Mei, Chunmei Zhang, Xiaowei Cheng
Summary: To solidify natural gas hydrate (NGH) layers in deep and ultra-deep water environments, cement slurries need to have low heat of hydration (HOH) and high early strength. This study utilizes chemical precipitation to prepare a microencapsulated phase change material (MPCM) with a core of phase change materials and a silica shell. The MPCM effectively controls the temperature increase during cement hydration and improves the early strength of cement pastes through accelerated hardening. The properties of this new cement slurry system meet the requirements for cementing NGH layers in deep and ultra-deep water areas, with broad application potential in the oil and natural gas industry.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Energy & Fuels
Kunyang Yu, Yushi Liu, Minjie Jia, Chao Wang, Yingzi Yang
Summary: This study developed a novel thermal energy storage cement mortar by incorporating encapsulated phase change material (PCM) into the cement matrix. The prepared mortar showed improved mechanical strength and cost-effectiveness. Thermal performance tests demonstrated its good heat storage capacity, and economic evaluation confirmed its low cost and prominent energy saving performance.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Materials Science, Multidisciplinary
Anna-Marie Lauermannova, Milena Pavlikova, Zbysek Pavlik, Adam Pivak, Adela Jirickova, Jan Sklenka, Martina Zaleska, Kvetoslav Ruzicka, Ondrej Jankovsky
Summary: In this study, phase change materials (PCMs) were incorporated into magnesium oxychloride cement (MOC) to form MOC-PCM composites with high heat storage efficiency. Although the mechanical strength of the composites is reduced, their excellent thermal properties compensate for this drawback. This research provides a potential solution for heat energy storage in building engineering.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Chemistry, Multidisciplinary
Kiumars Aryana, Hyun Jung Kim, Cosmin-Constantin Popescu, Steven Vitale, Hyung Bin Bae, Taewoo Lee, Tian Gu, Juejun Hu
Summary: Reconfigurable or programmable photonic devices have become integral in optical systems and play a crucial role in applications ranging from data communication to space exploration. Chalcogenide-based phase-change materials have shown promise in reconfigurable photonics due to their large optical contrast. This paper highlights three important aspects that impact the thermal and phase transition behavior of these devices: enthalpy of fusion, heat capacity change upon glass transition, and thermal conductivity of liquid-phase PCMs. The findings offer insights for accurate modeling and development of more efficient reconfigurable optics.
Article
Construction & Building Technology
Miao Ren, Tiefeng Chen, Xiaojian Gao, Anshuang Su
Summary: The energy-saving concrete was developed by incorporating n-octadecane and diatomite composite shape-stabilized phase change materials (OC/D SSPCMs) into cement concrete. The melting point and enthalpy of OC/D SSPCMs were found to be 25.02 degrees C and 60.26 J/g respectively, and they demonstrated good dispersion and compatibility in cement paste. As a structure-function integrated material, the energy-saving concrete with a compressive strength of 33.5 MPa has a promising application prospect. Room tests revealed that the energy-saving concrete can reduce indoor temperature by 4.5 degrees C. Long-term thermal/mechanical properties, volume deformation, and microstructure after thermal cycling treatment were also investigated.
CEMENT & CONCRETE COMPOSITES
(2023)
Article
Thermodynamics
Guangqi Xiong, Chong Wang, Shuai Zhou, Yalin Zheng, Yuanliang Ren, Zheng Fang, Ying Zhao
Summary: The study investigates the thermal effect of power ultrasound (PUS) on cement hydration and its effective propagation distance. Two different water-to-cement (w/c) ratios, four ultrasound power levels, and four varying durations of ultrasound irradiation were used as independent variables. The results show that the effective ultrasonic distance for temperature elevation is below 100 mm and the hydration degree of cement paste exhibits a gradient characteristic under ultrasonic irradiation. Applying 900 W ultrasound for 10 minutes produces a more uniform temperature field. This research suggests the potential of utilizing the thermal effect for prestressed cement panels.
APPLIED THERMAL ENGINEERING
(2023)
Article
Construction & Building Technology
Xiaobin Gu, Lihua Peng, Peng Liu, Liang Bian, Boxuan Wei
Summary: Phase change material (PCM) with large thermal storage capacity and constant phase change temperature is a promising material for building energy saving. This study utilizes acid-modified halloysite to encapsulate PCM and investigates the thermal conductivity enhancement on the thermal performance of FSPCM cement panel. The results showed that the acid-modified FSPCM had high thermal storage capacity and appropriate phase change temperature.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Thermodynamics
Weiguang Su, Liying Gao, Li Wang, Hui Zhi
Summary: The selection of PCM depends on its phase change temperature and latent heat, which are commonly measured by DSC. Calibration of DSC instruments is crucial for accuracy of data, and reference materials selection should consider measurement temperature range and thermal stabilities of calibrants.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Green & Sustainable Science & Technology
Seyed Mostapha Musavi, Farahnaz Barahuie, Mohsen Irani, Ali Safamanesh, Abdurahman Malekpour
Summary: A novel stable phase change material nano composite was designed for solar energy absorption and storage in the building, showing excellent thermal performance and chemical stability. With the addition of graphene, the solar energy absorption and storage rate of the nanocomposite integrated with cement board was enhanced.
Article
Energy & Fuels
Sushreeta Dora, K. M. Mini
Summary: Due to global warming, the construction sector is searching for new materials, such as phase change materials (PCM), to improve thermal comfort and reduce energy consumption in buildings. This study explores the feasibility of using an organic PCM composite, developed by impregnating expanded vermiculite with capric acid using ethyl alcohol, in cement mortar. The addition of PCM improves the thermal characteristics of the mortar boards, while the addition of nano silica and coir fiber enhances their physical and mechanical strength.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Construction & Building Technology
Miao Ren, Xiaodong Wen, Xiaojian Gao, Yushi Liu
Summary: The novel MPCM-UHPC composite material exhibits excellent thermal performance and mechanical properties, but the incorporation of MPCM has a negative effect on the mechanical properties and autogenous shrinkage of the material.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
L. D. Griffith, B. P. Alho, A. Czernuszewicz, P. O. Ribeiro, J. Slaughter, V. K. Pecharsky
Summary: Accurately modeling the thermal behaviors of materials with strong elastocaloric effects is crucial, and a physics-based approach has been used successfully. This approach provides insight into the thermal properties of elastocaloric materials and aids in rapid evaluation for efficient design of regenerative elastocaloric cooling devices.
Article
Green & Sustainable Science & Technology
Thomas Dewers, Peter Eichhubl, Ben Ganis, Steven Gomez, Jason Heath, Mohamad Jammoul, Peter Kobos, Ruijie Liu, Jonathan Major, Ed Matteo, Pania Newell, Alex Rinehart, Steven Sobolik, John Stormont, Mahmoud Reda Taha, Mary Wheeler, Deandra White
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2018)
Article
Energy & Fuels
Arash Kamali-Asl, Ehsan Ghazanfari, Pania Newell, Mathew Stevens
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2018)
Article
Materials Science, Multidisciplinary
Ashley D. Spear, Michael W. Czabaj, Pania Newell, Karen DeMille, Brian R. Phung, Dongfang Zhao, Peter Creveling, Nathan Briggs, Eric Brodbine, Christopher Creveling, Eric Edelman, Kristoffer Matheson, Caitlin M. Arndt, Megan Buelte, Stuart Childs, Isaac Nelson, Faramarz Safazadeh, Jordan French, Clay Audd, Austin J. Smith, Edward J. Dorrian, Gregory Clark, Jonathan Tayler, Renan Ichi
INTERNATIONAL JOURNAL OF FRACTURE
(2019)
Article
Materials Science, Multidisciplinary
Sharlotte L. B. Kramer, Amanda Jones, Ahmed Mostafa, Babak Ravaji, Thomas Tancogne-Dejean, Christian C. Roth, Maysam Gorji Bandpay, Keunhwan Pack, John T. Foster, Masoud Behzadinasab, James C. Sobotka, John M. McFarland, Jeremy Stein, Ashley D. Spear, Pania Newell, Michael W. Czabaj, Bruce Williams, Hari Simha, Mark Gesing, Lindsay N. Gilkey, Christopher A. Jones, Remi Dingreville, Scott E. Sanborn, John L. Bignell, Albert R. Cerrone, Vincent Keim, Aida Nonn, Steven Cooreman, Philippe Thibaux, Nicoli Ames, Devin O. Connor, Matthew Parno, Brett Davis, Joseph Tucker, Baptiste Coudrillier, Kyle N. Karlson, Jakob T. Ostien, James W. Foulk, Christopher I. Hammetter, Spencer Grange, John M. Emery, Judith A. Brown, Joseph E. Bishop, Kyle L. Johnson, Kurtis R. Ford, Steffen Brinckmann, Michael K. Neilsen, Jacek Jackiewicz, K. Ravi-Chandar, Thomas Ivanoff, Bradley C. Salzbrenner, Brad L. Boyce
INTERNATIONAL JOURNAL OF FRACTURE
(2019)
Article
Geochemistry & Geophysics
Zhiqiang Fan, Peter Eichhubl, Pania Newell
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2019)
Article
Green & Sustainable Science & Technology
P. Newell, M. J. Martinez
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2020)
Article
Chemistry, Multidisciplinary
Truong Vo, Brett Reeder, Angelo Damone, Pania Newell
Article
Materials Science, Multidisciplinary
Bang He, Louis Schuler, Pania Newell
COMPUTATIONAL MATERIALS SCIENCE
(2020)
Article
Engineering, Multidisciplinary
Louis Schuler, Anastasia G. Ilgen, Pania Newell
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
(2020)
Article
Green & Sustainable Science & Technology
Bang He, Pania Newell
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2020)
Article
Computer Science, Interdisciplinary Applications
Bozo Vazic, Bilen Emek Abali, Hua Yang, Pania Newell
Summary: This paper investigates the effect of complex micropore morphology on the effective mechanical properties of porous systems using a higher-order asymptotic homogenization method, highlighting the necessity of higher-order homogenization in understanding mechanical properties. Through several numerical case studies, the relationship between underlying morphology and effective mechanical properties is systematically studied, revealing the significant influence of higher-order parameters on mechanical properties, especially for specific pore shapes.
ENGINEERING WITH COMPUTERS
(2021)
Article
Engineering, Biomedical
Debora Lyn Porter, Alexander J. Bradshaw, Ryan H. Nielsen, Pania Newell, Bryn T. M. Dentinger, Steven E. Naleway
Summary: Armillaria ostoyae is a highly pathogenic fungus using rhizomorphs to seek out new sources of nutrition. The melanized layer on rhizomorphs provides resilience and protection, with calcium providing chemical defense. Wild-harvested rhizomorphs with melanized layers showed smaller pores and better deformation balance, suggesting potential for improved control methods.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2022)
Article
Computer Science, Interdisciplinary Applications
Bang He, Truong Vo, Pania Newell
Summary: This study investigates the effect of microporosity and micropore shapes on macrofracture behavior in porous amorphous silica through numerical simulation. The results show that micropore shapes have an influence on macrofracture behavior, but this effect depends on the geometry and loading conditions of the macroscopic boundary value problems.
ENGINEERING WITH COMPUTERS
(2022)
Article
Thermodynamics
Bozo Vazic, Bilen Emek Abali, Pania Newell
Summary: A fundamental understanding of the interaction between microstructure and underlying physical mechanisms is crucial for developing accurate multi-physics models. This study utilizes generalized thermomechanics to model the effects of microstructure on material response. A thermo-mechanical framework is developed, with microstructure modeled as a periodic structure and higher-order parameters calculated through asymptotic homogenization approach. The numerical framework is demonstrated to be beneficial in designing materials with tailored microstructures.
CONTINUUM MECHANICS AND THERMODYNAMICS
(2023)
Article
Materials Science, Multidisciplinary
Bozo Vazic, Pania Newell
Summary: This paper investigates the effect of complex micropore morphology on the effective mechanical properties of a porous system using a higher-order asymptotic homogenization method. The results demonstrate the importance of higher-order parameters in capturing the role of realistic pore morphologies on mechanical properties and provide insights for the design of nature-inspired materials.
MECHANICS OF 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)
