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)
Review
Nanoscience & Nanotechnology
Muhammad Nasir Amin, Kaffayatullah Khan, Sohaib Nazar, Ahmed Farouk Deifalla
Summary: A large amount of waste tires is disposed of in landfills globally, but extracting recycled steel fibers from them is becoming a new trend. Researchers are now focusing on using alternative recycled steel fibers instead of industrial steel fibers in concrete. This study reviews and compiles the results and methods of recycling waste tire steel fibers in existing studies, aiming to provide guidance on improving the mechanical properties of composite materials through appropriate composition and characteristics.
REVIEWS ON ADVANCED MATERIALS SCIENCE
(2023)
Review
Nanoscience & Nanotechnology
Peng Zhang, Chenyang Wang, Cunliang Wu, Yongfu Guo, Yin Li, Jinjun Guo
Summary: This review summarizes the research on using recycled steel fibers from waste tires to enhance the mechanical properties of concrete and discusses the process of recycling WTSFs. The new fiber not only has a significant impact on the environment, but also affects the characteristics and mechanical properties of concrete.
REVIEWS ON ADVANCED MATERIALS SCIENCE
(2022)
Article
Green & Sustainable Science & Technology
Md. Shahjalal, Kamrul Islam, Jesika Rahman, Khondaker Sakil Ahmed, Mohammad Rezaul Karim, A. H. M. Muntasir Billah
Summary: This research investigates the impact of waste materials on recycled concrete, improving its mechanical properties through the introduction of crumb rubber and polypropylene fiber. Concrete beams with the mixture of materials exhibit enhanced performance, while existing design guidelines are inadequate in assessing their load-bearing capacity.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Engineering, Civil
Mina Esmailzade, Milad Eskandarinia, Farhad Aslani
Summary: The production of ductile and environmentally-friendly concrete becomes possible by using recycled fibers and pozzolanic materials. Purification of recycled steel fibers can improve the engineering properties of the concrete, especially the imperviousness and flexural performance. However, it negatively affects the ultrasonic pulse velocity and compressive strength.
Article
Engineering, Civil
Eva O. L. Lantsoght
Summary: This paper proposes a theoretical model for the shear capacity of SFRC members with mild steel reinforcement based on shear-carrying mechanisms and sectional analysis. The model is derived theoretically and compared to experimental results, showing slightly conservative predictions. Further experimental research is needed to develop the model. The presented theory aims to provide a framework for a fully theoretical description of the shear capacity of SFRC members with longitudinal reinforcement and without shear reinforcement.
ENGINEERING STRUCTURES
(2023)
Article
Construction & Building Technology
Shuo Dong, Qiuhong Zhao, Han Zhu
Summary: This study investigates the mechanical behavior of steel fiber-reinforced rubberized concrete (SFR-RuC) through experimental investigations. The optimized SFR-RuC shows improved mechanical properties compared to natural concrete. The synergistic action between rubber particles and steel fibers significantly enhances the performance of the concrete.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Construction & Building Technology
Bing Liu, Xuanyu Zhang, Junpeng Ye, Xiaoyan Liu, Zhiheng Deng
Summary: This study investigated the effect of microfibers and macrofibers on the mechanical properties of coral concrete. The results showed that both types of fibers can improve the mechanical properties, with microfibers mainly affecting the stage before macrocracks formation and macrofibers mainly exerting positive effects after macrocracks appeared. The hybrid addition of microfibers and macrofibers further enhanced the mechanical properties.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2022)
Article
Construction & Building Technology
Asad Zia, Pu Zhang, Ivan Holly
Summary: The increasing pollution is a significant obstacle to achieving the United Nations' goals for a sustainable society. The trend of using waste fibers, particularly from discarded tires, in the construction industry to improve the strength and durability of concrete is receiving attention. This study aims to explore the suitability of raw steel fibers from waste tires for producing sustainable and durable cement composites.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Construction & Building Technology
Xun Xu, Qianwa Chen, Bo Yu, Qian Liu, Ronghua Zhang, Yinghu Liu
Summary: This study investigated the fluidity and strength of reactive powder concrete (RPC) containing waste steel fibres recycled from scrap tires (WSF). It also discussed the influence of mineral admixtures on the performance of RPC. The results showed that the fluidity of RPC containing WSF was slightly worse than that containing copper-coated steel fibres (CSF), but there was not much difference in the strength of the two types of RPC. The optimum silica fume dosage was found to be 20%, while the optimum fly ash and limestone powder dosages were 5% each.
ROAD MATERIALS AND PAVEMENT DESIGN
(2023)
Article
Construction & Building Technology
Ibrahim G. Shaaban, Joseph P. Rizzuto, Amr El-Nemr, Lin Bohan, Hatem Ahmed, Hannington Tindyebwa
Summary: The study investigates the effects of curing and drying on the mechanical properties and permeation characteristics of concrete using waste tire extracts. It shows that incorporating crumb rubber and steel fibers as partial replacements in concrete can enhance its tensile and flexural strengths. The research suggests that the oven-drying curing regime can reduce the air permeability of the concrete, indicating a potential for indoor and outdoor applications.
JOURNAL OF MATERIALS IN CIVIL ENGINEERING
(2021)
Article
Construction & Building Technology
Maria Idrees, Farhan Saeed, Zia Farooq, Fuat Koksal, Jinyan Shi
Summary: Efficient management of waste materials is crucial for a cleaner environment. This study demonstrates that incorporating discarded carpet threads and silica fume into concrete significantly increases its tensile and flexural strengths, as well as other durability characteristics. This approach not only improves concrete properties but also helps conserve resources, promote sustainability, recycling, and a circular economy.
JOURNAL OF BUILDING ENGINEERING
(2023)
Article
Construction & Building Technology
Mehran Khan, Mingli Cao, S. H. Chu, Majid Ali
Summary: The use of mineral basalt fibers in composites has been attracting attention due to its ecological nature. Research on the long-term behavior and mechanical properties of concrete, notably under aggressive environmental conditions, has shown significant enhancement in properties of HFRC. Mineral basalt fibers have shown promising potential in developing HFRC with improved performance under challenging conditions.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Construction & Building Technology
Mehran Khan, Mingli Cao, Chaopeng Xie, Majid Ali
Summary: This study examines the uniaxial compressive behavior of multi scale hybrid fiber reinforced concrete and investigates the influence of basalt fiber length and content on the properties of steel fiber-calcium carbonate whisker reinforced fly ash concrete. The results show that the multi scale hybrid fiber reinforced concrete exhibits superior compressive characteristics compared to plain concrete.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2022)
Article
Construction & Building Technology
M. Iqbal Khan, Yassir M. Abbas
Summary: This study fills the research gap in steel fiber-reinforced concrete (SFRC) and provides a better understanding of its mechanical properties. It investigates the influence of fiber dosage and length on SFRC and introduces a new equation to accurately calculate its flexural strength.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Multidisciplinary Sciences
Caner Elibol, Ozkan Sengul
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2016)
Article
Construction & Building Technology
Canan Tasdemir, Ozkan Sengul, Mehmet Ali Tasdemir
ENERGY AND BUILDINGS
(2017)
Article
Construction & Building Technology
Hasan Yildirirn, Ozkan Sengul
CONSTRUCTION AND BUILDING MATERIALS
(2011)
Article
Construction & Building Technology
Hasan Yildirim, Tolga Ilica, Ozkan Sengul
CONSTRUCTION AND BUILDING MATERIALS
(2011)
Article
Construction & Building Technology
Ozkan Sengul
CONSTRUCTION AND BUILDING MATERIALS
(2014)
Article
Construction & Building Technology
Ozkan Sengul
CONSTRUCTION AND BUILDING MATERIALS
(2018)
Article
Construction & Building Technology
Ozkan Sengul, Senem Azizi, Filiz Karaosmanoglu, Mehmet Ali Tasdemir
ENERGY AND BUILDINGS
(2011)
Article
Construction & Building Technology
Ozkan Sengul, Mehmet Ali Tasdemir
JOURNAL OF MATERIALS IN CIVIL ENGINEERING
(2009)
Article
Environmental Sciences
Fatih Salihpasaoglu, Ozkan Sengul
JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT
(2020)
Article
Green & Sustainable Science & Technology
Saadet Gokce Gok, Ozkan Sengul
Summary: This study investigated the possibility of using waste glass as an alternative source of silicate in alkali-activated mixtures, finding that waste glass can be an effective replacement for sodium silicate. The mortar specimens produced with different molarities of sodium hydroxide and ground waste glass demonstrated certain mechanical and durability properties under various curing conditions.
PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS-ENGINEERING SUSTAINABILITY
(2021)
Article
Engineering, Civil
Ozkan Sengul
Article
Construction & Building Technology
Ozkan Sengul, Odd E. Gjorv
ACI MATERIALS JOURNAL
(2008)
Article
Construction & Building Technology
O Sengul, C Tasdemir, MA Tasdemir
ACI MATERIALS JOURNAL
(2005)
Article
Construction & Building Technology
Ozkan Sengul, Odd E. Gjorv
ACI MATERIALS JOURNAL
(2009)
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)