Article
Construction & Building Technology
Dan Huang, Venkatesh Kodur, Weiyong Wang
Summary: In recent years, high-strength steel (HSS) has been widely used in building construction due to its excellent strength and durability properties. However, structures incorporating HSS have poorer fire resistance due to the rapid deterioration of mechanical properties at high temperatures. This paper provides a state-of-the-art review on the temperature-dependent properties of HSS, compiling available data and relations for thermal, mechanical, and deformation properties. The variations in elevated properties of HSS are established and the critical properties for evaluating the fire resistance of structures incorporating HSS are discussed.
ADVANCES IN STRUCTURAL ENGINEERING
(2023)
Article
Construction & Building Technology
Shuobiao Li, Wenqi Ding, Qingzhao Zhang, Xiangyong Xiao, Qinglong Zhou
Summary: This study investigated the mechanical properties of a new duplex stainless steel (S32001) at room temperature and high temperature through a series of tensile tests. The results showed that the ultimate strain of S32001 first decreases and then increases with rising temperature, while the elastic modulus and strength decrease rapidly when the temperature exceeds 500 degrees C.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2022)
Article
Engineering, Civil
Tom Molkens, Katherine A. Cashell, Barbara Rossi
Summary: This paper provides guidance on the post-fire material properties and safety factors for assessing and retrofitting existing steel buildings. A statistical evaluation of mechanical data from 718 tests collected from 19 peer-reviewed articles and theses is conducted, proposing adjusted safety factors and reduced reliability index based on economic and social considerations.
ENGINEERING STRUCTURES
(2021)
Article
Construction & Building Technology
Hang Yin, Ernian Zhao, Xin Zhang, Kai Yan
Summary: Compared with carbon steel, bridge weathering steel contains corrosion-resistant alloying elements, which form a protective patina on the steel surface and delay rust corrosion. The post-fire performance of S355J2W steel was investigated using three cooling methods. The rising temperature and cooling approach had an effect on the mechanical properties of the steel. This study provides a foundation for assessing the behavior of bridge weathering steel after fire.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2023)
Article
Construction & Building Technology
Dan Huang, Linbo Zhang, Weiyong Wang, Hailiang Mu
Summary: The residual mechanical properties of steel after fire exposure are essential in evaluating the post-fire performance of steel structures. Current experimental research neglects the stress in steel during heating and cooling phases, which violates the fact that steel structures still carry load during a fire hazard. The study found that tension stress in steel can improve the post-fire yield strength and ultimate strength, but has adverse effects at higher temperatures. Evaluation of post-fire performance should consider the specific temperature and stress levels. The residual elastic modulus of steel is not significantly affected by tension stress.
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2022)
Article
Engineering, Civil
Chloe Jeanneret, Benjamin Nicoletta, Lucie Robertson, John Gales, Panagiotis Kotsovinos
Summary: This study investigates the impact of fire on prestressed bridge structures, highlighting the possibility that current guidelines may not be conservative enough for long-duration fires, suggesting a reduction of the critical temperature by at least 100°C.
ENGINEERING STRUCTURES
(2021)
Article
Construction & Building Technology
Waibhaw Kumar, Umesh Kumar Sharma, Mahadev Shome
Summary: This paper presents an experimental investigation on the mechanical properties of fire-resistant steel (FRS) at elevated temperatures, showing that FRS performs better than conventional structural steel (CSS) at temperatures above 400 degrees Celsius. It suggests a possible application of FRS in steel structures exposed to fire conditions.
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2021)
Article
Thermodynamics
Zhibiao Wei, Zetian Yang, Zixuan Chen, Tao Yu, Qian Li, Weidong Yang, Yan Li
Summary: Silica@polydopamine (SiO2@PDA) nanoparticles were prepared to comprehensively improve the fire safety, thermal stability, and mechanical properties of plant fiber-reinforced polymer (PFRP) composites. SiO2@PDA nanoparticles exhibited better dispersion state in the epoxy matrix, increased thermal decomposition temperature and graphitized char residue yield, improved fire safety parameters, and enhanced the mechanical properties of the composites.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Optics
Chao Meng, Rui Cao, Jingyue Li, Fuyang Geng, Yuwei Zhang, Chun Wu, Xuelei Wang, Weibin Zhuang
Summary: The bionic laser surface treatment on H13 steel can significantly improve its service life. The microstructure and microhardness of the laser alloying zone of H13 steel were refined and increased with increasing TiC fraction. Tensile strength gradually increased with higher TiC fraction, while wear resistance showed an initially increasing and then decreasing trend.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Mechanics
Muye Yang, Jiajing Xie, Shigenobu Kainuma, Weijie Liu
Summary: This study focused on improving the bond strength and environmental durability of CFRP-strengthened steel structures by enhancing surface treatment and curing processes. Results showed that temperature played a significant role in the mechanical and thermal properties of the composite materials.
COMPOSITE STRUCTURES
(2021)
Article
Engineering, Aerospace
Chuang Shi, Hongwei Guo, Yadi Cheng, Rongqiang Liu, Zongquan Deng
Summary: A new type of cable-strut tensioned antenna mechanism was proposed and optimized through a multi-objective approach. The results should serve as a useful reference for the design of large caliber satellite antennas in aerospace engineering.
Article
Chemistry, Physical
Katarzyna Kaczorek-Chrobak, Jadwiga Fangrat
Summary: A cable parameter called omega, which is related to the volume of effective non-combustible content, is proposed. This parameter depends on the ratio of non-metallic, non-combustible component volume to non-metallic, combustible component volume, and the effective area of heat transfer within the cable during combustion. Experimental tests and Spearman's correlation analysis confirm the correctness of the proposed parameter for circular cables. The omega cable parameter shows high Spearman's correlation with total heat release and total smoke production, making it a potential tool for selecting cable samples in large-scale fire testing.
Article
Engineering, Civil
Suman Kumar Mushahary, Konjengbam Darunkumar Singh, S. Arul Jayachandran
Summary: This paper investigates the mechanical properties of mild steel E350 subjected to growth, cooling and post-fire phases in a non-standard fire condition. Reduction factors and stress strain models have been proposed based on the results. It was found that the rate of regaining mechanical properties is slower in the cooling phase compared to the growth phase.
THIN-WALLED STRUCTURES
(2021)
Article
Construction & Building Technology
Julian Carrillo, Harold Lozano, Carlos Arteta
Summary: The study examines the mechanical properties of steel bars sold in the Bogotá market and the impact of imported steel bars that do not meet the requirements on local building codes. Through statistical analysis of experimental data, important references are provided for future research on the structural performance and reliability of reinforced concrete structures in central Colombia.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Engineering, Civil
Chao Zhang, Adam Pintar, Jonathan M. Weigand, Joseph A. Main, Fahim Sadek
Summary: This study revealed the impact of thermal properties and thickness of SFRM on steel temperatures through sensitivity analysis, showing that increasing thermal conductivity leads to higher steel temperatures, while increasing thickness and volumetric heat capacity result in lower steel temperatures, with the influence of volumetric heat capacity being smaller in comparison to thermal conductivity and thickness.
FIRE SAFETY JOURNAL
(2021)
Article
Construction & Building Technology
Yan-Bo Wang, Yi-Fan Lyu, Yuan-Zuo Wang, Guo-Qiang Li, J. Y. Richard Liew
CONSTRUCTION AND BUILDING MATERIALS
(2020)
Article
Construction & Building Technology
Binglin Lai, J. Y. Richard Liew, Akshay Venkateshwaran, Shan Li, Mingxiang Xiong
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2020)
Article
Construction & Building Technology
Ming-Xiang Xiong, J. Y. Richard Liew, Yan-Bo Wang, De-Xin Xiong, Bing-Lin Lai
CONSTRUCTION AND BUILDING MATERIALS
(2020)
Article
Construction & Building Technology
Ming-Xiang Xiong, J. Y. Richard Liew
CONSTRUCTION AND BUILDING MATERIALS
(2020)
Article
Engineering, Civil
Ming-Xiang Xiong, J. Y. Richard Liew
ENGINEERING STRUCTURES
(2020)
Article
Construction & Building Technology
Binglin Lai, J. Y. Richard Liew
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2020)
Article
Construction & Building Technology
Gilbert Sebastiano Gondokusumo, Akshay Venkateshwaran, Kiang Hwee Tan, J. Y. Richard Liew
Summary: Novel unified equations for predicting the residual flexural tensile strength of steel fiber-reinforced concrete (SFRC) were proposed in this paper, taking into account factors such as fiber geometry, fiber content, concrete compressive strength, and concrete density. Test results confirmed the accuracy of the proposed equations, showing improvement over existing equations and applicability for SFRC with varying densities.
STRUCTURAL CONCRETE
(2021)
Article
Construction & Building Technology
Bing-Lin Lai, Rui-Long Bao, Ming-Yang Zhang, Yong-Hui Wang, J. Y. Richard Liew
Summary: This paper presents a comprehensive evaluation of the structural performance of high strength steel reinforced concrete (HS-SRC) columns, including the analysis of failure mechanism, load-carrying capacity, and ductility coefficient. Key issues related to high strength materials are highlighted and discussed, and recommendations are proposed to support the future design guidelines and promote the application of HS-SRC columns in engineering practice.
JOURNAL OF BUILDING ENGINEERING
(2023)
Article
Construction & Building Technology
Binglin Lai, J. Y. Richard Liew, Mingxiang Xiong
STEEL AND COMPOSITE STRUCTURES
(2019)
Proceedings Paper
Construction & Building Technology
Yong Du, Honghui Qi, Richard Liew
PROCEEDINGS OF THE 9TH INTERNATIONAL CONFERENCE ON STEEL AND ALUMINIUM STRUCTURES (ICSAS19)
(2019)
Proceedings Paper
Construction & Building Technology
Shan Li, J. Y. Richard Liew, Binglin Lai
PROCEEDINGS OF THE 9TH INTERNATIONAL CONFERENCE ON STEEL AND ALUMINIUM STRUCTURES (ICSAS19)
(2019)
Proceedings Paper
Construction & Building Technology
J. Y. Richard Liew, Binglin Lai
PROCEEDINGS OF THE 9TH INTERNATIONAL CONFERENCE ON STEEL AND ALUMINIUM STRUCTURES (ICSAS19)
(2019)
Proceedings Paper
Construction & Building Technology
Yuichi Nishida, J. Y. Richard Liew, Masaki Arita
PROCEEDINGS OF THE 9TH INTERNATIONAL CONFERENCE ON STEEL AND ALUMINIUM STRUCTURES (ICSAS19)
(2019)
Article
Construction & Building Technology
Yong Du, Ming-Xiang Xiong, Jian Zhu, J. Y. Richard Liew
STEEL AND COMPOSITE STRUCTURES
(2019)
Article
Construction & Building Technology
Zhenyu Huang, Xinxiong Huang, Weiwen Li, Liu Mei, J. Y. Richard Liew
STEEL AND COMPOSITE STRUCTURES
(2019)
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)