Article
Construction & Building Technology
Guilherme Miguel Amantino, Nicole Pagan Hasparyk, Francieli Tiecher, Romildo Dias Toledo Filho
Summary: This study evaluates the performance of bio-concrete using rice waste as bio-aggregates. The results show that the addition of bio-aggregates can improve the thermal performance of the concrete, but also lead to a decrease in mechanical properties and an increase in plastic deformation.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Construction & Building Technology
Osman Gencel, Mirac Oguz, Aliakbar Gholampour, Togay Ozbakkaloglu
Summary: By incorporating fine recycled concrete aggregate, foam concretes showed a slight increase in porosity and absorption, while a decrease in dynamic elastic modulus, ultrasound, and thermal conductivity. The findings suggest the potential use of this material for producing lightweight construction materials with significant environmental benefits.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Construction & Building Technology
Paulo Vtor Camin Pena, Rondinele Alberto dos Reis Ferreira, Antonio Carlos dos Santos, Andrielli Morais de Oliveira
Summary: The aim of this study was to evaluate the behavior of steel fiber reinforced concrete (SFRC) compared to concrete without fiber at the strength classes of 30 MPa and 50 MPa under compression creep. Various volumetric contents of steel fibers were tested, and the elastic deformation (ED) and specific creep (SC) values were measured. The results showed that the addition of steel fibers reduced creep strain and had a positive impact on the durability properties of the concrete.
JOURNAL OF BUILDING ENGINEERING
(2023)
Article
Mechanics
Fengzhen He, Luigi Biolzi, Valter Carvelli
Summary: This study investigated the fracture performance of two types of hybrid fiber reinforced concrete under elevated temperature and water curing conditions. The results showed that elevated temperature led to increased damage, while water curing reduced the damage. Elevated temperature also resulted in decreased modulus of rupture, residual strength, and fracture toughness. Water curing enhanced the flexural performance of the concrete.
ENGINEERING FRACTURE MECHANICS
(2022)
Article
Chemistry, Physical
Mateusz Zakrzewski, Mateusz Gancarz, Katarina Tvrda, Joanna Laskowska-Bury, Jacek Domski
Summary: This study determines the mechanical parameters of cement mortar using various quantities of waste fibers, polypropylene microfibers, and steel microfibers through laboratory experiments. The results show that the use of steel microfibers improves the properties of the cement mortar compared to a mixture with steel cord or polypropylene fibers. However, the cement mortar with steel cord provides better flexural strength and greater flexural toughness factors compared to the cement mortar with polypropylene fibers. This suggests that steel cord can be a full-value ecological replacement for different fibers.
Article
Thermodynamics
Shengan Deng, Yue Yu, Liang Yao, Haiwei Liu, Jianyan Xu, Hailong Huo, Fuyong Su, Zhi Wen
Summary: This study proposes a novel rotating-drum technology for efficient and cost-effective drying of converter sludge. The investigation of different operating parameters reveals that adjusting them appropriately can improve energy utilization rate and drying rate while reducing specific energy consumption.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Engineering, Mechanical
Sam Oliver, Chris Simpson, David M. Collins, Christina Reinhard, Martyn Pavier, Mahmoud Mostafavi
Summary: Thermal shock is crucial in the operation of pressure vessels, affecting their structural integrity. Experiments and numerical simulations are used to evaluate the effects of thermal shock and study the transient material response. Research demonstrates that peak stress intensity occurs during thermal shock, rather than under steady conditions before or after.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2021)
Article
Construction & Building Technology
Saadet Gokce Gok, Ozkan Sengul
Summary: This experimental study focuses on the production of sustainable slurry infiltrated fiber concretes (SIFCONs) using alkali-activated ground granulated blast furnace slag (GGBS) and waste fibers. The results show that the mechanical properties of the alkali-activated mixtures are improved compared to the reference concretes. However, the mixtures with waste glass have lower strengths.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Construction & Building Technology
Ali Ihsan Celik, Yasin Onuralp Ozkilic
Summary: This study aims to improve the production of geopolymer concrete by addressing its limitations in workability, setting time, and strength. The addition of NaOH solution improves workability and setting time, while the use of recycled steel fibers from waste tires enhances strength. The substitution of basalt powder for fly ash and the addition of recycled steel fibers also improve the environmental aspect of geopolymer concrete.
STEEL AND COMPOSITE STRUCTURES
(2023)
Article
Construction & Building Technology
Asad Zia, Pu Zhang, Ivan Holly
Summary: This study examines the potential impact of scrap tire steel fibers (SSFs) on concrete properties, specifically focusing on long-term performance. The inclusion of SSFs improves the elastic modulus, tensile splitting strength, and reduces linear shrinkage of concrete. Furthermore, hybrid fiber concrete (HSFRC) shows superior performance compared to traditional industrial hook end steel fiber (ISF) concrete, indicating its potential for replacing ISF concrete in various civil engineering applications.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Construction & Building Technology
Sergio Miraldo, Sergio Lopes, Fernando Pacheco-Torgal, Adelino Lopes
Summary: Global material resources are quickly being depleted due to global economic development, leading to exponential growth in waste generation and environmental impacts. Recycling waste as aggregates in structural concrete can improve material efficiency and reduce waste generation, but mass utilization in structural concrete may not be feasible due to limitations in variety, quantity, and utilization. Recycling waste as aggregates in alkali-activated binder concrete compositions may be more suitable due to less impact on performance.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Construction & Building Technology
Hoang-Anh Nguyen, Ta-Peng Chang, Chun-Tao Chen, Tsung-Yuan Huang
Summary: This study investigates the engineering and creep properties of low-energy super-sulfated cement concrete using waste anhydrite (WA) derived from circulating fluidized bed combustion fly ash. The results demonstrate that a mixture of 25% WA and 5% OPC produces SSC concretes with the highest 28-day compressive strength and lowest shrinkage. The increase of OPC reduces the creep, while the increase of WA has the opposite effect. Microstructural analysis reveals that the addition of WA leads to larger ettringite crystals and a relatively looser binding matrix.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Construction & Building Technology
Hoang-Anh Nguyen, Ta-Peng Chang, Chun -Tao Chen, Tsung-Yuan Huang
Summary: The study investigated the engineering and creep properties of low-energy super-sulfated cement concrete with waste anhydrite, and found that a combination of 25% WA and 5% OPC produced the highest compressive strength and least shrinkage at 28 days. Increasing OPC reduced creep while increasing WA had the opposite effect. Microstructural analysis revealed that WA addition resulted in larger AFt crystals and a looser binding matrix.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Optics
Xi Zou, Zhou Yan, Ke Zou, Shuai Gang Zhang, Wenyang Liu, Lijun Song
Summary: In this paper, the effects of different laser modes on the fabrication of 316 L stainless steel were investigated. The results show that the pulsed-wave (PW) mode generates lower residual stress and has better thermal stress relaxation ability compared to the continuous-wave (CW) mode.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Energy & Fuels
Laura Boquera, David Pons, Ana Ines Fernandez, Luisa F. Cabeza
Summary: The study identified six supplementary cementitious materials that can be added to concrete, including bauxite, chamotte, ground granulated blast furnace slag, iron silicate, silica fume, and steel slag. Microstructural characterization was conducted using various tests, showing the formation of calcium silica hydrate in all SCMs during pozzolanic tests. Additionally, exposure to an alkaline environment led to a decrease in tensile strength for polypropylene and steel fibers.
Article
Engineering, Civil
Ziba Fazel, Masoome Fazelian, Hamed Sarkardeh
INTERNATIONAL JOURNAL OF CIVIL ENGINEERING
(2017)
Article
Engineering, Civil
Sayed-Abdul-Hamid Sajjadi, Sayed-Hamed Sajjadi, Hamed Sarkardeh
INTERNATIONAL JOURNAL OF CIVIL ENGINEERING
(2018)
Article
Engineering, Civil
Morteza Monshizadeh, Ahmad Tahershamsi, Hassan Rahimzadeh, Hamed Sarkardeh
INTERNATIONAL JOURNAL OF CIVIL ENGINEERING
(2018)
Article
Engineering, Civil
Mohammadreza Khanarmuei, Hassan Rahimzadeh, Hamed Sarkardeh
JOURNAL OF HYDRAULIC RESEARCH
(2019)
Article
Materials Science, Multidisciplinary
Fereydon Amini, Mohammad Ali Barkhordari Bafghi, Hamed Safayenikoo, Hamed Sarkardeh
MATERIALS SCIENCE-MEDZIAGOTYRA
(2018)
Article
Mechanics
Ahmad Tahershamsi, Hassan Rahimzadeh, Morteza Monshizadeh, Hamed Sarkardeh
Article
Engineering, Civil
Behrouz Khadem, Seyyed Hossein Ghoreishi Najafabadi, Hamed Sarkardeh
PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS-WATER MANAGEMENT
(2018)
Article
Physics, Multidisciplinary
Faezeh Tajabadi, Ehsan Jabbari, Hamed Sarkardeh
EUROPEAN PHYSICAL JOURNAL PLUS
(2018)
Article
Physics, Multidisciplinary
Matin Jahani, Hamed Sarkardeh, Ebrahim Jabbari
EUROPEAN PHYSICAL JOURNAL PLUS
(2018)
Article
Physics, Multidisciplinary
Ahmad Tahershamsi, Hassan Rahimzadeh, Morteza Monshizadeh, Hamed Sarkardeh
EUROPEAN PHYSICAL JOURNAL PLUS
(2018)
Article
Engineering, Marine
Ahmad Abbasi, Seyed Masoud Taghvaei, Hamed Sarkardeh
JOURNAL OF MARINE SCIENCE AND APPLICATION
(2018)
Article
Obstetrics & Gynecology
Parnaz Borjian Boroujeni, Marjan Sabbaghian, Mehdi Totonchi, Niloofar Sodeifi, Homa Sarkardeh, Azam Samadian, Mohammad Ali Sadighi-Gilani, Hamid Gourabi
JORNAL BRASILEIRO DE REPRODUCAO ASSISTIDA
(2018)
Article
Mechanics
Fatemeh Naseri, Hamed Sarkardeh, Ebrahim Jabbari
Article
Engineering, Civil
Hamid Shahrabadi, Sina Sayareh, Hamed Sarkardeh
CHINA OCEAN ENGINEERING
(2017)
Article
Multidisciplinary Sciences
Behrouz Khadem Rabe, Seyyed Hossein Ghoreishi Najafabadi, Hamed Sarkardeh