Article
Polymer Science
Dai Wang, Jiansong Yuan, Jiahua Jing, Chengrui Fu, Yuhang Wang, Jiaru Xiong
Summary: FCSST columns consist of an outside FRP tube, an inside steel tube and concrete filled between them. The continuous constraint of the tubes significantly improves the strain, strength, and ductility of the concrete. In addition, the tubes function as permanent formwork and enhance the bending and shear resistance of the composite columns. The compressive testing of FCSST columns provides valuable information regarding the influence of eccentricity and axial FRP cloth layers on the axial strain evolution, bearing capacity, and other properties.
Article
Engineering, Civil
Haiyang Gao, Lianguang Wang, Ni Zhang
Summary: This study investigated the behavior of composite columns under eccentric compression and found that the arrangement of steel bars inside the hybrid DSTCs could improve the eccentric carrying capacity and ductility of the composite columns. The results indicated that the eccentric carrying capacity and initial stiffness decreased as the eccentricity and void ratio increased, while they increased with the longitudinal reinforcement ratio and concrete strength. The growth rate of the carrying capacity decreased when the longitudinal reinforcement ratio reached 3.66%.
JOURNAL OF COMPOSITES FOR CONSTRUCTION
(2021)
Article
Engineering, Civil
Wenjie Ge, Kangbao Chen, Zhongwei Guan, Ashraf Ashour, Weigang Lu, Dafu Cao
Summary: The eccentric compression behavior of reinforced concrete columns strengthened with steel-FRP composite bars shows stable post-yield stiffness and significantly improved compressive performance with the use of high performance concrete. The mechanical properties of composite reinforcement have a significant influence on failure mode, crack width, deformation, and bearing capacity in eccentric compression behavior.
ENGINEERING STRUCTURES
(2021)
Article
Construction & Building Technology
Liangli Xiao, Hongjing Hu, Shuang Peng, Zhuang Du, Chengxiang Xu
Summary: This study investigated the cooperative effect of GFRP reinforcement and steel-PVA hybrid fibre concrete under eccentric loading. The addition of fibres effectively prevented crack generation and improved the bonding property between reinforcement and concrete. An equation for calculating the ultimate compressive capacity of eccentric columns was proposed, and good agreement was observed between the tested and calculated values.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Thermodynamics
Ni Zhang, Chenyang Zheng, Zhongwei Zhao, Bo Yang
Summary: Research on the performance of FRP-concrete-steel tubular composite columns under eccentric load was conducted, and a nonlinear analysis program was verified to accurately reflect the deformation and estimate the ultimate load of the composite columns. Factors such as eccentricity, tube wall thicknesses, steel tube radius, slenderness ratio, and concrete strength grade were found to influence the eccentric compression performance of the composite columns.
ADVANCES IN MECHANICAL ENGINEERING
(2021)
Article
Engineering, Civil
Tao Jiang, Guan Lin, Pan Xie
Summary: Hybrid FRP-concrete-steel double-skin tubular columns exhibit excellent mechanical performance and durability. This study investigates the behavior of these columns under eccentric compression, and finds that they display highly ductile behavior. A theoretical column model incorporating stress-strain models accurately predicts the axial load-carrying capacities of the columns.
ENGINEERING STRUCTURES
(2023)
Article
Engineering, Civil
Ghassan Almasabha, Ahmad Tarawneh, Eman Saleh, Omar Alajarmeh
Summary: This study analyzed a database of 53 tested slender FRP-RC columns to develop a simplified and accurate model for predicting flexural stiffness. The proposed model showed strong agreement with experimental values and accounted for second-moment order effect to enhance credibility and repeatability. Compared to existing models, the proposed model demonstrated higher accuracy in predicting flexural stiffness of slender FRP-RC columns, providing engineers with a valuable tool for design.
JOURNAL OF COMPOSITES FOR CONSTRUCTION
(2022)
Article
Construction & Building Technology
Pavithra Chandramouli, Revathy Jayaseelan, Gajalakshmi Pandulu
Summary: The hybrid double-skin tubular column is a unique composite column made of an outer fibre-reinforced polymer tube and an inner steel tube with concrete filling the space between them. Experimental results showed that fibres oriented in the hoop direction provided higher ultimate load-carrying capacity and fibres oriented at +/- 45° showed an increase in the ultimate strain. Normal-strength concrete specimens displayed better strength and strain enhancement ratio compared to high-strength concrete specimens.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2022)
Article
Polymer Science
Junjie Zeng, Tianwei Long
Summary: A novel form of tubular columns made of ultra-high-performance concrete internally reinforced with fiber-reinforced polymer grid (FRP grid-UHPC tubular column) was developed in this study. The experimental results confirmed its satisfactory compressive strength and improved strength and ductility.
Article
Construction & Building Technology
Qingxin Ren, Jinan Ding, Qinghe Wang, Heqing Lou
Summary: This paper studied the behavior of slender square hollow steel-reinforced concrete columns under eccentric compression and developed a finite element model to simulate their behavior. A systematic parametric analysis was conducted to study the impacts of various factors, and a simplified design method was proposed to calculate the sectional capacity of the columns.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Construction & Building Technology
Bin Cai, Bingyang Bai, Wenfeng Duan, Lin Wang, Shengda Wang
Summary: Coal gangue, a waste product of coal mining, can be used as a coarse aggregate in construction to address its environmental impact. This study investigated the mechanical properties of steel fibre reinforced coal gangue concrete (SFCGC) columns under eccentric compression. Various parameters were considered, such as gangue substitution rate, steel fibre volume content, and eccentricity. Experimental and theoretical analysis revealed the failure mode, cracking, and ultimate bearing capacity of SFCGC columns. The incorporation of steel fibres effectively restrained crack development, resulting in increased crack load and ultimate load.
Article
Construction & Building Technology
Pan Xie, Tao Jiang, Guan Lin, Lijuan Li, Yongchang Guo
Summary: This study conducted a series of tests on hybrid DSTCs with different slenderness ratios under eccentric compression, and found that DSTCs with smaller slenderness ratios performed well with great ductility. By using existing stress-strain models, the behavior of DSTCs was successfully simulated, and the eccentric-loading stress-strain model developed by the authors' group provided the most accurate predictions for the ultimate deformation of the test DSTCs.
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2023)
Article
Engineering, Civil
Shui Liu, Xin Wang, Yahia M. S. Ali, Huang Huang, Jingyang Zhou, Zhishen Wu
Summary: This study investigates the eccentric compression behavior of concrete columns reinforced with a hybrid of steel and basalt fiber-reinforced polymer (BFRP) bars and ties. The test results show that hybrid-RC columns with higher reinforcement ratios have similar load carrying capacity and stiffness as steel-RC and BFRP-RC columns. Increasing loading eccentricity leads to significant reductions in load-carrying capacities and stiffness of all columns. Higher reinforcement ratios result in improved load-carrying capacity, stiffness, and axial force contribution in hybrid-RC columns. The study also proposes equations to predict the cross-sectional strength of hybrid-RC columns and evaluates existing methods for considering the slenderness effect.
ENGINEERING STRUCTURES
(2023)
Article
Construction & Building Technology
C. W. Chan, S. S. Zhang, T. Yu
Summary: This study conducted tests on circular fibre-reinforced polymer-concrete-steel hybrid multitube concrete columns, finding that they have excellent axial load and deformation capacities, suitable for engineering structures. Comparison between test results and model predictions revealed that the existing model can reasonably predict axial load-strain behavior but largely underestimates ultimate strain. Further research may help in developing a more accurate model.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Engineering, Civil
Wen-Jie Ge, Jia-wei Zhu, Ashraf Ashour, Zhong-Ping Yang, Xiao-ning Cai, Shan Yao, Wei-Hua Yan, Da-Fu Cao, Wei-gang Lu
Summary: This study investigates the performance of concrete columns reinforced with steel fiber-reinforced polymer composite bars (SFCBs) under chloride corrosion. The results show that SFCBs can effectively reduce deflection and crack width and enhance the load capacity of the columns.
JOURNAL OF COMPOSITES FOR CONSTRUCTION
(2022)
Review
Construction & Building Technology
M. J. Jedrzejko, S. S. Zhang, Y. Ke, D. Fernando, X. F. Nie
Summary: This paper provides a comprehensive review and discussion of strength models for NSM FRP shear strengthened RC beams. The models are classified into three categories based on their approach and then summarized and discussed. This study aims to enhance understanding of existing strength models and provide a background for evaluating these models using a newly-generated experimental database.
ADVANCES IN STRUCTURAL ENGINEERING
(2023)
Review
Construction & Building Technology
Y. Ke, S. S. Zhang, M. J. Jedrzejko, D. Fernando, X. F. Nie
Summary: The application of near-surface mounted (NSM) fiber-reinforced polymer (FRP) for shear strengthening of RC beams has been extensively studied. Various strength models have been proposed to predict the contribution of NSM FRPs to the shear capacity of strengthened beams. This paper provides an objective assessment of 12 strength models collected from existing literature and analyzes the reasons for their inaccurate predictions.
ADVANCES IN STRUCTURAL ENGINEERING
(2023)
Article
Mechanics
K. C. Liu, C. Jiang, T. Yu, J. G. Teng
Summary: This paper presents a systematic experimental study on the axial compressive behavior of elliptical FRP tube-confined concrete columns (EFCCCs). The study found that the confinement effectiveness of FRP tubes in EFCCCs decreases with the aspect ratio and concrete strength, but increases with the FRP tube thickness. The fiber orientations in the FRP tube have a significant effect on the confinement effectiveness and failure mode of EFCCCs. Based on the test results, a new stress-strain model for the concrete in EFCCCs is proposed, which includes a more rigorous treatment of the confinement stiffness and can provide more accurate predictions for the whole stress-strain curve than existing models.
COMPOSITE STRUCTURES
(2023)
Article
Engineering, Civil
Le Huang, Tao Yu, Guan Lin, Shi-Shun Zhang
Summary: This paper presents a comprehensive study on the confinement mechanism of fibre-reinforced polymer (FRP)-confined concrete-encased cross-shaped steel columns (FCCSCs). Through experimental observations and three-dimensional FE modelling, the study reveals that the variations of the dimensions of the steel section have limited effects on its confinement to the concrete, while the increase of FRP tube thickness tends to reduce the confinement effect from the steel section.
ENGINEERING STRUCTURES
(2023)
Article
Engineering, Civil
Y. Ke, S. S. Zhang, S. T. Smith, T. Yu
Summary: In the past two decades, the near-surface-mounted (NSM) fiber-reinforced polymer (FRP) strengthening technique for reinforced-concrete (RC) beams has been widely studied and applied. However, the efficiency of the NSM FRP intervention is limited due to premature debonding failure. To enhance efficiency, a novel anchorage device called an embedded FRP anchor (EFA) is proposed. The effectiveness of EFAs in NSM FRP-strengthened RC beams is confirmed through full-scale beam tests, revealing the significant effects of EFA parameters on the behavior of the anchored beam.
JOURNAL OF COMPOSITES FOR CONSTRUCTION
(2023)
Article
Construction & Building Technology
Peiran Li, Wengui Li, Kejin Wang, John L. Zhou, Arnaud Castel, Shishun Zhang, Surendra P. Shah
Summary: In order to address the shortage of freshwater resource in island and coastal regions, the use of seawater in concrete mix shows significant economic and environmental benefits. This study investigates the hydration of Portland cement in seawater and quantitatively determines the composition of solid and liquid phases. The use of seawater not only increases the hydration rate of clinker, but also affects the evolution of phase assemblage. The results suggest the formation of Friedel's salt instead of sulfo-AFm in hydrated cement by seawater, leading to higher sulfate concentration and hindering ettringite conversion.
CEMENT & CONCRETE COMPOSITES
(2023)
Article
Mechanics
J. J. Wang, S. S. Zhang, X. F. Nie, T. Yu
Summary: Due to their excellent mechanical properties and durability, ultra-high performance concrete (UHPC) or ultra-high performance fiber reinforced concrete (UHPFRC) has emerged as a promising alternative to conventional materials in strengthening deficient structures and building new structures. FRP confinement is an efficient method to improve the compressive behavior of UHPC/UHPFRC. This study investigates the stress-strain behavior of FRP-confined UHPC/UHPFRC through axial compression tests and evaluates existing models.
COMPOSITE STRUCTURES
(2023)
Article
Construction & Building Technology
S. S. Zhang, J. J. Wang, Guan Lin, T. Yu, D. Fernando
Summary: This paper presents an experimental study on the triaxial compressive behavior of ultra-high performance concrete (UHPC) and ultra-high performance fiber reinforced concrete (UHPFRC). The results show that lateral hydraulic pressure significantly enhances the strength and ductility of UHPC and UHPFRC. The presence of steel fibers has significant effects on the axial stress-axial strain behavior and the dilation behavior of UHPC and UHPFRC. New axial stress-axial strain models and an equation for the axial strain-lateral strain relationship for UHPC and UHPFRC are proposed.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Mechanics
Hao Zhou, S. S. Zhang, Dilum Fernando, Tianli Huang
Summary: This paper presents a theoretical study on predicting the behavior of carbon fiber reinforced polymer-to-concrete bonded joints under fatigue-cyclic loading. A model taking into account the plastic deformations, damage, and damage accumulation is proposed. The model is calibrated using the experimental bond-slip relation and a numerical algorithm is formulated to simulate the fatigue bond behavior. The numerical simulation provides conservative predictions for fatigue life due to the neglect of beneficial effects from the compression stress state near the loaded end in the single-shear pull-off test.
ENGINEERING FRACTURE MECHANICS
(2023)
Article
Engineering, Civil
Guan Lin, S. S. Zhang
Summary: Most design guidelines/codes currently ignore the compressive contribution of GFRP bars in compression members, but studies have shown that with adequate transverse bars, the contribution of longitudinal FRP bars can be significant. This paper presents experimental results on CFFT cylinders with internal longitudinal GFRP bars, which demonstrated that FRP bars contribute significantly to the total load resistance of these cylinders. A simplified analysis method for the axial load at FRP bar crushing in CFFT cylinders was also proposed.
ENGINEERING STRUCTURES
(2023)
Article
Green & Sustainable Science & Technology
Yicong Wang, Sisuo Zhang, Richard L. Smith, Xiaoning Liu, Xinhua Qi
Summary: In this study, ordered mesoporous carbon electrode materials containing La(OH)(3) and Fe3C components were prepared and used for efficient removal of nitrogen and phosphorus from water. The ordered pores facilitated electron transfer and provided voids for phosphate removal. The electrode material showed stability and selectivity in removing nitrogen and phosphorus, and maintained high efficiency under various conditions including pH and presence of multiple ions or seawater. This work provides a new strategy for treating eutrophic water in practical production.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Engineering, Civil
Jun Zhao, Jian Fang, Yongming Yang, Shishun Zhang, Hugo Biscaia
Summary: Using ductile adhesive on CFRP-reinforced steel structures can enhance the resistance to dynamic and fatigue loading, making it suitable for rehabilitating steel bridges. However, existing studies on the CFRP-steel interface only focus on mode-II loading, neglecting the potential catastrophic collapse caused by mode-I loading. This paper investigates the bond behavior of CFRP-to-steel joints under mixed mode-I and II loading, considering various initial peeling angles. The results reveal that the debonding behavior and bond strength are influenced by the adhesion between CFRP and adhesive, as well as the peeling angle.
THIN-WALLED STRUCTURES
(2023)
Article
Construction & Building Technology
Xiaonan Wang, Wengui Li, Yuhan Huang, Shishun Zhang, Kejin Wang
Summary: Incorporating phase change material (PCM) into construction materials is an effective way to improve energy management. In this study, paraffin with specific properties was absorbed into artificial porous aggregate under vacuum pressure. Various tests were conducted to evaluate the properties of the materials, and an optimal structure for PCM incorporation into the aggregates was proposed.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Engineering, Civil
M. J. Jedrzejko, J. Tian, S. S. Zhang, Y. Ke, X. F. Nie, Y. M. Yang
Summary: In recent years, researchers have proven the high efficiency of the near-surface-mounted (NSM) fiber-reinforced polymer (FRP) method for strengthening reinforced concrete (RC) beams. However, NSM FRP shear-strengthened beams often fail in debonding modes, limiting the strength utilization and strengthening efficiency of the FRP material. Anchoring measures have been proposed, but they are complicated and may still result in interfacial debonding. This study proposes a novel NSM U-shaped FRP (NUF) device that effectively increases the bond efficiency and can prevent debonding failure, thus increasing the strengthening efficiency of NSM FRP method.
ENGINEERING STRUCTURES
(2023)
Article
Environmental Sciences
Renjie Mi, Tao Yu, Chi Sun Poon
Summary: Carbon sequestration in concrete can be achieved by using the space in porous coarse aggregates and cations in alkaline slurry without affecting concrete strength development or pH value of the concrete pore solution. Experimental results demonstrate the feasibility of this method.
ENVIRONMENTAL RESEARCH
(2023)
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)
