Article
Engineering, Civil
K. Christidis, E. G. Badogiannis, C. Mintzoli
Summary: The study found that adding end-hooked steel fibers can significantly improve the compressive strength and flexural strength of pumice lightweight concrete, especially in terms of post-crack behavior. Efforts were also made to model the post-crack behavior in flexure, and a multi-phase constitutive law describing the behavior of steel-fiber reinforced pumice lightweight concrete was proposed in correlation to the mechanical properties of plain lightweight concrete.
Article
Construction & Building Technology
Burak Kocak, Brahim Pinarci, Ugur Guvenc, Yilmaz Kocak
Summary: In this study, two different Artificial neural networks (ANN) and two different adaptive network-based fuzzy inference systems (ANFIS) models were constructed to predict the compressive strength of cement mortar samples with or without pumice and/or diatomite on different days. The models showed very good predictive performance, with a small error, for estimating the compressive strength of the cement mortars.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Construction & Building Technology
Juhuan Zheng, Liang Qi, Yongqian Zheng, Liya Zheng
Summary: This study compares the mechanical properties of steel fiber-reinforced geopolymer concrete (SFGPC) and steel fiber-reinforced ordinary Portland concrete (SFOPC), and proposes a uniaxial compressive stress-strain model for SFGPC.
JOURNAL OF BUILDING ENGINEERING
(2023)
Article
Construction & Building Technology
Yunshi Pan, Yaowen Zhang, Shuangxin Li
Summary: The study explores the combined application of microwaving curing and RPC, finding that isothermal microwave curing can effectively improve the mechanical properties of concrete and is more energy efficient and easier to control compared to nonisothermal curing.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Mechanics
Xiaoyong Zhang, Xiang Lin, Yu Chen
Summary: This study investigated the mechanical properties of steel fiber reinforced Nanoconcrete (SFRNC) after elevated temperature, finding that the mixing of steel fiber can improve the integrity and ductility of concrete.
COMPOSITE STRUCTURES
(2021)
Article
Construction & Building Technology
Rowyda A. Zaki, Basem H. AbdelAleem, Assem A. A. Hassan, Bruce Colbourne
Summary: This study found that using steel fibers in concrete at cold temperatures can improve mechanical properties and impact resistance, reduce low temperature brittleness, with more significant effects when larger volume and longer lengths of steel fibers are used.
CEMENT & CONCRETE COMPOSITES
(2021)
Article
Construction & Building Technology
Ibrahim Pinarci, Yilmaz Kocak
Summary: This paper reports on the hydration production, micro structuring, and compressive strength results of Portland cement-pumice systems. The study shows that pumice has lower pozzolanic activity in the early period, but the compressive strength increases with time and the cement continues to hydrate. SEM images reveal that the usage of pumice leads to a denser microstructure as the hydration age increases.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Review
Construction & Building Technology
Tanvir Qureshi, Guorui Wang, Sankha Mukherjee, Md Akibul Islam, Tobin Filleter, Chandra V. Singh, Daman K. Panesar
Summary: This report reviews the current state of graphene-based coating technology for steel surfaces, discussing both experimental studies and theoretical aspects.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Polymer Science
Kaffayatullah Khan, Waqas Ahmad, Muhammad Nasir Amin, Ayaz Ahmad, Sohaib Nazar, Anas Abdulalim Alabdullah
Summary: This study applies advanced machine-learning algorithms to predict the compressive strength of steel-fiber-reinforced concrete (SFRC) and provides a detailed understanding of the effects of raw materials on concrete strength through SHAP analysis. The random forest algorithm performs the best with high accuracy in predicting SFRC compressive strength.
Article
Construction & Building Technology
Hao Bao, Min Yu, Yin Chi, Yu Liu, Jianqiao Ye
Summary: This study conducted systematic supercritical carbonation tests on SPFRC to evaluate its performance, finding that the addition of steel fibers or polypropylene fibers can accelerate the carbonation process and increase compressive strength, with carbonation depth increasing with fiber addition.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Environmental Sciences
Karthiga Shenbagam Natarajan, Sam Issac Benjamin Yacinth, Kannan Veerasamy
Summary: Ordinary Portland cement concrete is widely used in construction worldwide, but its manufacturing process produces a significant amount of CO2 emissions and pollution. To address this issue, researchers have developed geopolymer concrete, which has higher strength compared to traditional concrete. Geopolymer concrete shows promising performance in various tests and could potentially reduce the environmental impact of construction.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Construction & Building Technology
A. De La Rosa, J. J. Ortega, G. Ruiz, J. L. Garcia Calvo, F. J. Rubiano Sanchez, A. Castillo
Summary: This study investigates the use of fatigue loads to activate the self-healing mechanism of concrete, contrary to the conventional belief that cyclic loads only cause damage. The experimental results show that fatigue loads can actually improve the strength of the material. Compression fatigue tests were conducted on fiber-reinforced concrete, and the runout specimens exhibited a mean increase of 23% in strength after enduring more than 165,000 cycles. Microstructure analyses confirmed the presence of new hydration products and a reduction in porosity, which explain the enhanced capacity of the concrete. Additionally, a unique relationship between strain rate and fatigue life was observed for each fatigue stress level.
CEMENT AND CONCRETE RESEARCH
(2023)
Article
Construction & Building Technology
Mohamed Hechmi El Ouni, Syed Haroon Ali Shah, Asif Ali, Shoaib Muhammad, Muhammad Sarmad Mahmood, Babar Ali, Riadh Marzouki, Ali Raza
Summary: The use of recycled aggregates in concrete, in combination with single steel fiber or polypropylene fibers, or a hybrid of the two, can significantly improve the flexural performance, compressive performance, and water permeability resistance of concrete. Hybrid fiber-reinforced concrete shows potential for cheaper and more eco-friendly construction compared to single steel fiber-reinforced concrete.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2022)
Article
Construction & Building Technology
Rayed Alyousef, Muhammad Faisal Rehman, Majid Khan, Muhammad Fawad, Asad Ullah Khan, Ahmed M. Hassan, Nivin A. Ghamry
Summary: Steel-fiber-reinforced concrete (SFRC) is a viable substitute for traditional concrete in the construction industry, and the use of machine learning (ML) methods can accurately estimate its characteristics. This study focuses on predicting the compressive strength (CS) of SFRC at elevated temperatures using novel ML techniques such as adaptive neuro-fuzzy inference systems (ANFIS), artificial neural networks (ANN), and gene expression programming (GEP). The developed ML models show excellent performance, with GEP model being the most accurate. The SHapley Additive exPlanation (SHAP) technique is used to interpret the ML model predictions, revealing the significance of cement content, temperature, and water-to-cement ratio on CS.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2023)
Article
Construction & Building Technology
S. Riahi, A. Nemati, A. R. Khodabandeh, S. Baghshahi
Summary: In this study, alumina coated steel reinforced geopolymer composites were successfully fabricated and their interfacial and mechanical properties were investigated. Results showed that composites containing alumina coated steel fibers possess significantly higher mechanical properties and improved toughness compared to uncoated specimens. The flexural and compressive strength of alumina coated fiber composites were improved by around -17% and -14%, respectively, at 0.75 vol%.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Engineering, Chemical
Huseyin Zengin, Gulsen Aksin, Gulay Zengin, Mehmet Kahraman, Ibrahim Halil Kilic
POLYMER ENGINEERING AND SCIENCE
(2019)
Article
Materials Science, Multidisciplinary
Abdulcabbar Yavuz, Naime Ozdemir, Perihan Yilmaz Erdogan, Huseyin Zengin, Gulay Zengin, Metin Bedir
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2019)
Article
Engineering, Electrical & Electronic
Abdulcabbar Yavuz, Perihan Yilmaz Erdogan, Naime Ozdemir, Huseyin Zengin, Gulay Zengin, Metin Bedir
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2019)
Article
Chemistry, Inorganic & Nuclear
Abdulcabbar Yavuz, Perihan Yilmaz Erdogan, Naime Ozdemir, Huseyin Zengin, Gulay Zengin, Metin Bedir
SOLID STATE SCIENCES
(2020)
Article
Chemistry, Physical
Abdulcabbar Yavuz, Naime Ozdemir, Huseyin Zengin
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2020)
Article
Chemistry, Physical
Perihan Yilmaz Erdogan, Huseyin Zengin, Abdulcabbar Yavuz
SOLID STATE IONICS
(2020)
Article
Materials Science, Multidisciplinary
Abdulcabbar Yavuz, Naime Ozdemir, Perihan Yilmaz Erdogan, Huseyin Zengin, Gulay Zengin, Metin Bedir
Article
Engineering, Electrical & Electronic
Abdulcabbar Yavuz, Perihan Yilmaz Erdogan, Huseyin Zengin, Gulay Zengin
Summary: This study investigated the electrodeposition of Zn, Co, and Zn-Co alloy coatings on copper substrates using ionic liquid as the electrolyte. The coatings showed uniform and nano/micro structured morphologies. The Zn-Co alloy coating exhibited significantly higher corrosion resistance compared to bare copper.
JOURNAL OF ELECTRONIC MATERIALS
(2022)
Article
Humanities, Multidisciplinary
Hanifi Binici, Fatih Binici, Mehmet Akcan, Yavuz Yardim, Enea Mustafaraj, Marco Corradi
Article
Green & Sustainable Science & Technology
Hanifi Binici, Yavuz Yardim, Orhan Aksogan, Rifat Resatoglu, Aytac Dincer, Ali Karrpuz
SUSTAINABLE MATERIALS AND TECHNOLOGIES
(2020)
Review
Multidisciplinary Sciences
Hanifi Binici, Orhan Aksogan
SN APPLIED SCIENCES
(2019)
Article
Materials Science, Multidisciplinary
Zhichao Shang, Xiaoping Cai, Farshid Pahlevani, Yan Zheng, Akbar Hojjati-Najafabadi, Xinran Gao, Baojing Zhang, Peizhong Feng
Summary: High porosity Co-Al-Fe intermetallics with 3D-microstructures were successfully synthesized in one step via a thermal explosion reaction. The link between pore structure and permeability was investigated using 3D-XRM technology. The corrosion resistance of the samples with different Fe contents was studied at 900 degrees C under an oxygen/sulphur atmosphere for up to 120 h. The results showed that the samples maintained stable pore structure and intact internal matrices, attributed to the formation of a thin protective layer on the surface. In addition, inward diffusion of S resulted in the formation of FeS nodules.
Article
Materials Science, Multidisciplinary
Lian Ma, Hain Yang, Daquan Zhang, Wei Wu
Summary: In this study, an environmentally friendly volatile corrosion inhibitor, lysine salts (LA), was prepared between graphene oxide (GO) layers using an in situ intercalation technique. The corrosion inhibition effect of LA was evaluated, and it was found that LA-GO2 achieved a 99.3% corrosion inhibition efficiency after composition optimization. The inhibition of the electrochemical anodic process on the surface of mild steel was the main reason for the high corrosion inhibition efficiency of LA-GO2. The properties of the surface film on the corroded steel were also characterized in detail to understand the corrosion inhibition mechanism of LA-GO2.
Article
Materials Science, Multidisciplinary
Running Wang, Jiaping Zhang, Bing Liu, Jie Fei, Qiangang Fu
Summary: By introducing a tailored SiC-C interphase, the carbon fiber can be effectively protected, improving the mechanical and ablation properties of leading edge shaped C/C-ZrC-SiC composites.
Article
Materials Science, Multidisciplinary
Zihua Wang, Chijia Wang, Ruitao Wang, Jiapeng Deng, Kun Zhang, Yanji Zhu, Huaiyuan Wang
Summary: A robust anti-corrosive coating has been developed using functional fly ash, which demonstrates excellent corrosion resistance and improved mechanical properties. The coating achieves these enhancements through molecular cross-linking design and surface augmentation techniques, resulting in a significantly improved impedance modulus compared to pure polyurea coatings.
Article
Materials Science, Multidisciplinary
Haofei Sun, Meifeng Li, Hao Zhang, Jing Liu
Summary: The oxidation behavior of FeCrNi medium entropy alloy was investigated through experimental observations and density functional theory (DFT) calculations. The study found that at 900 degrees C, the alloy forms a desirable and continuous oxide layer, while at 1000 degrees C, the oxide layer becomes discontinuous with penetration of oxide. These observations highlight the significant role of phase structure in promoting the formation of protective oxide scales and influencing oxidation resistance.
Article
Materials Science, Multidisciplinary
Yang Li, Ke Ma, Jingjun Xu, Jingjing Li, Yueming Li, Yi Zhang, Jun Zuo, Meishuan Li
Summary: Cr2AlC diffusion barrier effectively blocks the diffusion of Ti, enhancing the stability and spalling resistance of the Al2O3 scales between NiCrAlY coating and TiAl alloy.
Article
Materials Science, Multidisciplinary
Weiyi Wang, Qinglin Pan, Xiangdong Wang, Bing Liu
Summary: By adding Ce, Sc, Y and Zr elements to Al-Mg-Si alloy, the microstructure of the alloy can be regulated, and the corrosion and heat resistance of the materials can be improved.
Article
Materials Science, Multidisciplinary
Andrea Cristoforetti, Javier Izquierdo, Ricardo M. Souto, Flavio Deflorian, Michele Fedel, Stefano Rossi
Summary: This study presents a new approach to studying the mechanism of filiform corrosion in organic coated steel using the scanning vibrating electrode technique (SVET) and micropotentiometry (potentiometric SECM). The electrochemical activity under the coating was evaluated by mapping the ionic current densities coming from artificial defects made in specific locations of the filament. Antimony tips were also used to investigate the pH changes associated with different corrosion reactions at the metal-paint interface. Local pH levels along the filament in the anodic and cathodic regions were determined.
Article
Materials Science, Multidisciplinary
Yang Gao, Dayun Sun, Zhu Liu, Shuo Cong, Rui Tang, Yanping Huang, Lefu Zhang, Xianglong Guo
Summary: The corrosion characteristics of a novel alumina-forming austenitic steel in high-pressure high-temperature water environment were studied. The addition of aluminum has a negative effect on the continuity of the alumina scale.
Article
Materials Science, Multidisciplinary
Negin Madelat, Benny Wouters, Peter Visser, Zahra Jiryaeisharahi, Kristof Marcoen, Shoshan T. Abrahami, Annick Hubin, Herman Terryn, Tom Hauffman
Summary: This work explores the correlation between electrolyte transport properties and the variation of pigment volume concentration (PVC) in organic coatings. An odd random phase electrochemical impedance spectroscopy (ORP-EIS) approach is used to analyze the diffusion of ions independent from water uptake. The results show that a higher PVC leads to a more homogeneous coating structure, resulting in faster diffusion of ions and enhanced water uptake.
Article
Materials Science, Multidisciplinary
Eloa Lopes Maia, Serguei Gavrilov, Valentyn Tsisar, Kitty Baert, Iris De Graeve
Summary: The effect of pre-oxidation in air at 300-500°C on the initiation and development of liquid metal corrosion attack on 316L austenitic steel in static lead-bismuth eutectic (LBE) has been investigated. It was found that pre-formed oxide films can protect the surface against dissolution, while high temperature pre-oxidation leads to localized corrosion.
Article
Materials Science, Multidisciplinary
Baozhuang Sun, Qiuyu Wang, Yue Pan, Zhiyong Liu, Cuiwei Du, Xiaogang Li
Summary: In this study, a non-steady electrochemical model was established to investigate stress corrosion cracking (SCC). The model was verified using 304 SS with various microstructures, confirming its effectiveness in assessing SCC susceptibility.
Article
Materials Science, Multidisciplinary
Xingyu Xiao, Xinhua Liu, Zhilei Wang, Xuexu Xu, Mingying Chen, Jianxin Xie
Summary: The corrosion behavior and mechanisms of Cu-10Ni-X (Al, Fe, Mn, Cr, Sn, Ti, Zn) alloys in a 3.5% NaCl solution were systematically investigated. Both computational and experimental results revealed that except Ti, other elements could enhance the corrosion resistance of Cu2O passivation film.
Article
Materials Science, Multidisciplinary
Gen Zhang, Yan-Ping Huang, E. Jiang, Wei -Wei Liu, Hong Yang, Jing Xiong, Yong-Fu Zhao
Summary: The addition of aluminum has a significant influence on the intermetallic compounds in AFA alloys, particularly increasing the content of B2-NiAl phase. In the SCO2 environment, the oxide scales formed on AFA alloys with aluminum were thinner than on ASS without aluminum, and the structure of the oxide scales changed to a double-layer structure.
Article
Materials Science, Multidisciplinary
Yuxuan He, Guozheng Xiao, Chao Wang, Xuefeng Lu, Liuyuan Li, Shiying Liu, Yusheng Wu, Zhanjie Wang
Summary: The relationship between configurational entropy and lattice distortion in novel rare earth monosilicates was investigated, and the effect of configurational entropy on their properties was studied. The results showed that lattice distortion increased with the increase of configurational entropy, but a highly symmetrical crystal structure was formed when the configurational entropy was large enough, inhibiting the lattice distortion.