Article
Engineering, Mechanical
Hua Rong, Wei Dong, Wenyan Yuan, Xiangming Zhou
Summary: In the improved ring test, shrinkage cracks first initiate from the preset crack and then propagate towards the outer circumference, with self-restraint providing crack insistence and steel ring restraint driving the shrinkage cracking. The non-uniform moisture distribution causes a bending effect along the radial direction. The elliptical geometry increases the restraining level, offering advantages in advancing shrinkage cracking and enhancing steel ring restraint.
THEORETICAL AND APPLIED FRACTURE MECHANICS
(2021)
Review
Polymer Science
Jui-Chi Lin, Panos Liatsis, Paschalis Alexandridis
Summary: Advances in stretchable and flexible sensors are meeting the demand for wearable and portable smart electronics. Tactile sensors, which integrate electronics, physics, and materials science, have great potential in various applications. This review summarizes recent advances in different types of tactile sensors and highlights the importance of integrating nanomaterials into polymer substrates to achieve enhanced sensing performance and mechanical properties.
Article
Construction & Building Technology
Sumaiya Afroz, Quang Dieu Nguyen, Yingda Zhang, Taehwan Kim, Arnaud Castel
Summary: Cracking induced by early age restrained shrinkage can lead to durability issues and premature deterioration in concrete structures. The effect of Supplementary Cementitious Materials (SCMs) on early-age restrained concrete cracking has not been fully understood. This study investigated different concrete mixes with varying strength grades and binders, and found that high grade concretes and those with slag had shorter time to cracking, while fly ash delayed cracking. The stress rate method performed the best in predicting cracking potential.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Engineering, Electrical & Electronic
Florian Requena, Nicolas Barbot, Darine Kaddour, Etienne Perret
Summary: This article presents an analytical model of the radiation pattern of a loop resonator, which can be used as a sensor to determine the orientation between the tag and the antenna in chipless RFID tags. A novel approach based on the resonator radiation pattern allows for extracting the rotation of the tag or the antenna position in 3-D. The accuracy of this passive and wireless sensor is always below 5 degrees with a maximum error lower than 3 degrees for the monostatic case.
IEEE SENSORS JOURNAL
(2023)
Article
Engineering, Electrical & Electronic
Amirhossein Hassanpoor Kalhori, Woo Soo Kim
Summary: Sensing technology in the Internet-of-Things (IoT) era is crucial for the next industrial revolution. Wireless sensors, particularly those made using printing methods and conductive materials, allow for wireless monitoring of physical and chemical changes in various applications. This article focuses on recent studies exploring advancements in printing methodologies for RF sensing technologies, covering sensor design, mechanisms, performance, and materials, to forecast the future of industry-proven printed wireless RF sensors.
ACS APPLIED ELECTRONIC MATERIALS
(2022)
Article
Construction & Building Technology
G. M. Moelich, P. J. Kruger, R. Combrinck
Summary: This study investigates the behavior of plastic shrinkage cracking in 3D printed concrete by exposing printed specimens to different drying conditions. The results show that the evaporation rate is closely related to the rate of concrete mass loss, and increasing the evaporation rate leads to direct shrinkage in the concrete.
CEMENT & CONCRETE COMPOSITES
(2022)
Article
Engineering, Civil
Yue Li, Aiqin Shen, Yinchuan Guo
Summary: In this study, various tests were conducted to evaluate the cracking resistance of basalt fiber reinforced concrete (BFRC) at different periods. It was found that long basalt fibers effectively delayed plastic settlement and reduced capillary pressure, resulting in decreased crack width of concrete. The addition of basalt fibers improved the fracture energy and cracking resistance capacity of concrete by slowing the formation and evolution of strain stripes under load.
ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING
(2023)
Article
Construction & Building Technology
G. M. Moelich, J. E. van Zyl, N. Rabie, R. Combrinck
Summary: The study investigates the influence of solar radiation on evaporation, concrete temperature, plastic shrinkage, and cracking. Exposure to solar radiation can significantly increase the amount and rate of pore water loss as well as plastic shrinkage and severity of PSC. Several radiation-related evaporation estimation models have been evaluated for accuracy, and a more accurate model was identified for estimating evaporation in concrete specimens exposed to solar radiation.
CEMENT & CONCRETE COMPOSITES
(2021)
Article
Chemistry, Physical
Alinda Dey, Akshay Vijay Vastrad, Mattia Francesco Bado, Aleksandr Sokolov, Gintaris Kaklauskas
Summary: The study investigates the impact of concrete shrinkage on the behavior of reinforced concrete elements, finding that shrinkage significantly lowers cracking load and tension stiffening, especially in elements with higher reinforcement ratios. Additionally, the comparison of experimental and shrinkage-free behaviors with code predictions shows a smaller relative error due to long-term shrinkage.
Article
Construction & Building Technology
Faez Sayahi, Mats Emborg, Hans Hedlund, Andrzej Cwirzen, Marcin Stelmarczyk
Summary: Plastic shrinkage cracking in concrete is mainly a physical process caused by rapid evaporation-induced excessive moisture loss. A new model proposed in this paper can accurately predict the severity of cracking in concrete.
MAGAZINE OF CONCRETE RESEARCH
(2021)
Article
Computer Science, Information Systems
Zhuang Shao, Yumei Wen, Ping Li, Guoda Wang, Yao Wang, Tao Han, Xiaojun Ji
Summary: RF sensing tags are essential for the Internet of Things, but their functionality can be affected by the mutual influence between adjacent tags. Analyzing the mutual impedance between tags provides insights into the wireless links between them. Experiments validate the impact of antenna separation on data decoding and transmission.
IEEE INTERNET OF THINGS JOURNAL
(2022)
Article
Construction & Building Technology
Renier Christiaan Deysel, William Peter Boshoff, Martha Sophia Smit
Summary: Plastic shrinkage cracking occurs when fresh concrete is drying and restrained from deformation, which results in cracking due to negative capillary pressure. This study developed a model that uses live in-situ capillary pressure measurements in fresh concrete to prevent plastic shrinkage cracking at any reasonable evaporation rate, making it a valuable tool.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Construction & Building Technology
Hani Nassif, Zeeshan Ghanchi, Mohammed Abed, Chaekuk Na
Summary: Self-Consolidating Concrete with high cement paste volume may face increased shrinkage and cracking issues. Assessing concrete shrinkage potential is crucial in designing mixes that can limit cracking. This study evaluated the cracking resistance of a series of self-consolidating mixes incorporating fibers using the modified AASHTO T334 test. The results show that the use of poly-propylene fibers can reduce the cracking area by 33%, and the strain in the steel ring without modification may underestimate the predicted strain in concrete.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Construction & Building Technology
Cong Tian, Zhiliang Dong, Xiaosheng Wei
Summary: The eccentric ring test is a novel approach for evaluating shrinkage cracking in cementitious materials. This study examines the influence of surface sealing and immersion curing on shrinkage cracking using the eccentric ring test. Simulation results reveal that the thinner sides of the specimen experience faster humidity decrease during shrinkage, leading to cracking.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Construction & Building Technology
Xiaoyu Han, Jiachuan Yan, Tiefeng Chen, Boyang Tang, Yini Lin
Summary: This study investigates the effect of upper self-weight on the plastic shrinkage of bottom printed concrete. The results show that increased self-weight of upper layers significantly increases the surface moisture and bleeding rate of the concrete at the bottom. However, as the self-weight of upper layers reduces the equivalent pore radius, it still facilitates the development of capillary pressure and causes larger free plastic shrinkage strain. When there is friction at the bottom, the constraint of the self-weight of upper layers limits horizontal plastic shrinkage, and the restraint strain increases with the upper self-weight.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Construction & Building Technology
O. Burkan Isgor, W. Jason Weiss
MATERIALS AND STRUCTURES
(2019)
Article
Construction & Building Technology
Chunyu Qiao, Prannoy Suraneni, Then Nathalene Wei Ying, Antara Choudhary, Jason Weiss
CEMENT & CONCRETE COMPOSITES
(2019)
Article
Construction & Building Technology
Vahid Jafari Azad, Ali Riza Erbektas, Chunyu Qiao, O. Burkan Isgor, W. Jason Weiss
JOURNAL OF MATERIALS IN CIVIL ENGINEERING
(2019)
Article
Construction & Building Technology
Hadi S. Esmaeeli, Mehdi Shishehbor, W. Jason Weiss, Pablo D. Zavattieri
CONSTRUCTION AND BUILDING MATERIALS
(2019)
Article
Construction & Building Technology
Chunyu Qiao, Mehdi Khanzadeh Moradllo, Hope Hall, M. Tyler Ley, W. Jason Weiss
ACI MATERIALS JOURNAL
(2019)
Article
Construction & Building Technology
Deborah Glosser, Antara Choudhary, O. Burkan Isgor, W. Jason Weiss
ACI MATERIALS JOURNAL
(2019)
Review
Construction & Building Technology
Scott H. Smith, Chunyu Qiao, Prannoy Suraneni, Kimberly E. Kurtis, William J. Weiss
CEMENT AND CONCRETE RESEARCH
(2019)
Article
Construction & Building Technology
Luca Montanari, Prannoy Suraneni, Marisol Tsui-Chang, Morteza Khatibmasjedi, Usama Ebead, Jason Weiss, Antonio Nanni
JOURNAL OF MATERIALS IN CIVIL ENGINEERING
(2019)
Article
Construction & Building Technology
Prannoy Suraneni, Amir Hajibabaee, Sivakumar Ramanathan, Ying Wang, Jason Weiss
CEMENT & CONCRETE COMPOSITES
(2019)
Article
Construction & Building Technology
Ali Riza Erbektas, O. Burkan Isgor, W. Jason Weiss
ACI MATERIALS JOURNAL
(2020)
Article
Construction & Building Technology
Francisco Montes, Tengfei Fu, Jeffrey P. Youngblood, Jason Weiss
CONSTRUCTION AND BUILDING MATERIALS
(2020)
Article
Construction & Building Technology
Ghazal Sokhansefat, Masoud Moradian, Mark Finnell, Amir Behravan, M. Tyler Ley, Catherine Lucero, Jason Weiss
CEMENT & CONCRETE COMPOSITES
(2020)
Article
Engineering, Civil
Mallory A. Westbrook, Rita M. Ghantous, W. Jason Weiss, Jon S. Belkowitz
Summary: This paper examines the use of two nano silica materials as an additive to reduce the susceptibility of concrete to deicing salt damage. It shows that the addition of nano silica can effectively reduce the formation of calcium oxychloride in concrete, thus improving its resistance to deicing salts.
TRANSPORTATION RESEARCH RECORD
(2023)
Article
Materials Science, Multidisciplinary
Mitch House, Liqiu Cheng, Kathy Banks, Jason Weiss
ADVANCES IN CIVIL ENGINEERING MATERIALS
(2019)
Article
Materials Science, Multidisciplinary
Alex T. Coyle, Robert P. Spragg, Prannoy Suraneni, Armen N. Amirkhanian, Marisol Tsui-Chang, William Jason Weiss
ADVANCES IN CIVIL ENGINEERING MATERIALS
(2019)