Article
Mechanics
Javad Shayanfar, Joaquim A. O. Barros, Mohammadali Rezazadeh
Summary: This study developed a generalized confinement model for circular concrete columns confined by FRP arrangements, incorporating a new strength model and design framework. It considered the influence of non-homogenous distribution of concrete transversal expansibility on confinement stiffness and provided better predictions of ultimate concrete conditions compared to design standards.
COMPOSITE STRUCTURES
(2021)
Article
Engineering, Civil
Guipeng Chen, Yanlei Wang, Tao Yu, Baolin Wan, Bing Zhang, Qing Liu
Summary: Elliptical fiber-reinforced polymer (FRP)-confined concrete members have attracted attention for their aesthetics and efficiency. The study explored the behavior of 24 elliptical FRP-confined concrete stub columns under axial compression, finding that increasing FRP confinement enhanced stress and strain capacities, while higher aspect ratios and high-strength concrete had adverse effects on axial behavior. A design-oriented model with wide concrete strength range was developed for better accuracy.
ENGINEERING STRUCTURES
(2021)
Article
Construction & Building Technology
Zhao Wang, Iman Hajirasouliha, Maurizio Guadagnini, Kypros Pilakoutas
Summary: This study investigates the axial behavior of square and circular concrete specimens confined by externally bonded FRP jackets. The research findings show that the confinement effectiveness of Aramid-FRP is better than Carbon-FRP, and the detrimental effect of sharp corners on confinement effectiveness is less critical when using high rubber content. The study suggests the need for more refined confinement models for predicting the behavior of confined rubberized concrete with rectangular cross-section.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
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
Shahzad Saleem, Amorn Pimanmas, Muhammad Irshad Qureshi, Winyu Rattanapitikon
Summary: The study aims to observe the influence of internal steel bars on the axial compressive response of noncircular RC column specimens confined with PET FRP. Test results show that the strength and deformation capacities of the confined specimens were significantly affected by the parameters considered, and PET FRP effectively restrained stress concentrations at the corners of bar buckling.
JOURNAL OF COMPOSITES FOR CONSTRUCTION
(2021)
Article
Mechanics
Le Huang, Tao Yu, Shi-Shun Zhang
Summary: The shape of the steel section has marginal effects on the behavior of the concrete in FCCSCs, while a thicker FRP tube reduces the steel confinement effect.
COMPOSITE STRUCTURES
(2021)
Article
Construction & Building Technology
Yu-Gui Cao, Yang Zhang, Mu-Yu Liu, Zhi-Fang Lu, Cheng Jiang
Summary: This study presents an analysis-oriented stress-strain model for FRP-confined predamaged concrete columns. By establishing two state-of-the-art databases and developing parameters, the model can predict columns of different cross-sectional shapes and performs well compared with test data.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Mechanics
Nicholas Sirach, Scott T. Smith, Tao Yu, Ahmed Mostafa
Summary: The study shows that FRP-confined multi-tube concrete columns exhibit excellent structural behavior under different parameters, with internal steel tubes outperforming aluminum tubes, and basalt FRP and GFRP jackets having similar effects. Increasing FRP thickness improves the ultimate strength of the column.
COMPOSITE STRUCTURES
(2022)
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
Zhidong Li, Yu-Fei Wu, Pengda Li
Summary: The stress-strain relationship of concrete varies under different conditions, making it crucial for engineering design. While direct measurement of local stress is not feasible, indirect methods can be used to derive the stress-strain relationship. Analytical methods like eccentrically loaded column tests can help derive detailed equations and computational procedures for columns with various cross-sectional shapes. Proper selection of equations and computational procedures can resolve issues like instability in calculated stress-strain curves or scatter in results, allowing for a better understanding of the stress-strain relationship of fiber-reinforced polymer (FRP)-confined concrete under eccentric loading.
JOURNAL OF COMPOSITES FOR CONSTRUCTION
(2021)
Article
Construction & Building Technology
Diogo Zignago, Michele Barbato
Summary: The application of FRP composites in the strengthening of RC structures is widely accepted. This paper proposes a new optimization method to obtain an analytical expression for the stress-strain monotonic envelope of concrete and reduce computational cost. Experimental results showed that the use of the proposed analytical monotonic envelope can significantly reduce computational time with minimal impact on structural response prediction.
JOURNAL OF STRUCTURAL ENGINEERING
(2023)
Article
Mechanics
JinJing Liao, Jun-Jie Zeng, Cheng Jiang, Jia-Xing Li, Jian-Song Yuan
Summary: Partial fiber-reinforced polymer (FRP) wrapping is an effective technique for strengthening reinforced concrete (RC) columns. In this study, the confinement mechanism of FRP spiral strip-wrapped concrete columns is investigated through axial compression tests. The results show that the proposed confinement effectiveness factor significantly affects the ultimate axial stress and the slope of the axial stress-strain curve. A new design-oriented stress-strain model is proposed based on the test data, which demonstrates good accuracy and robustness.
COMPOSITE STRUCTURES
(2022)
Article
Engineering, Civil
Javad Shayanfar, Joaquim A. Barros, Mohammadali Rezazadeh
Summary: The paper proposes a new unified model for determining the concrete confinement characteristics of FRP fully/partially confined circular/square concrete columns, aiming to enhance the continuity in predicting confinement-induced improvements for different types of columns. By considering the confinement efficiency factor and confinement path effect, the model includes the substantial influence of non-homogenous concrete expansion distribution in the determination of confinement pressure. The predictive performance of the developed model is evaluated by simulating experimental tests reported in the literature, based on an extensive set of experimental results.
ENGINEERING STRUCTURES
(2022)
Article
Construction & Building Technology
JinJing Liao, Jun-Jie Zeng, Qi-Ming Gong, Wai-Meng Quach, Wan-Yang Gao, Lihai Zhang
Summary: This study developed a new design-oriented stress-strain model to predict the stress-strain relationship of FRP-confined UHPC cylinders under axial compression. The model accurately estimated characteristic stresses and strains and showed good agreement with most of the test results, filling the research gap in this area.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Engineering, Civil
Medine Ispir, Korhan Deniz Dalgic, Alper Ilki
Summary: This study aims to define the cyclic axial behavior of hybrid FRP-confined concrete based on experimental results, proposing a stress-strain model for the cyclic response and revealing the characteristics of confined concrete with different fiber sheet combinations.
JOURNAL OF COMPOSITES FOR CONSTRUCTION
(2021)
Article
Mechanics
Dong Guo, Wan-Yang Gao, Yun-Lin Liu, Jian-Guo Dai
Summary: This study experimentally investigated the structural performance of CFRP-retrofitted steel beams under different service temperatures. The results showed that the debonding load of the CFRP-retrofitted beams varied with temperature, increasing from 20°C to 60°C and decreasing at 80°C. A formula was proposed to characterize the local bond-slip behavior of the CFRP-to-steel interface based on CFRP strain measurements at different temperatures.
COMPOSITE STRUCTURES
(2023)
Article
Construction & Building Technology
Dong Guo, Yun-Lin Liu, Wan-Yang Gao, Jian-Guo Dai
Summary: This study investigates the bond behavior and debonding load of carbon fiber-reinforced polymer (CFRP)-to-steel interface at different service temperatures. The results show that the debonding loads of the interface are significantly reduced at both low and high service temperatures.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Engineering, Civil
Yong Wang, Weixin Liu, Zhaohui Huang, Gongchen Wang, WanYang Gao, Shanshan Wang, Aolin Gu, Guanxu Han, Yajun Zhang, Haoyu Tian, Fan Huang
Summary: This study investigates the effect of vertical deflection of the edge beam on the post-fire residual behavior of beam-slab specimens. The results show that the load capacities of fire-damaged specimens are enhanced, with the main load-carrying mechanism concentrated on the slab panel.
ENGINEERING STRUCTURES
(2022)
Article
Construction & Building Technology
Jun-Jie Zeng, Jin-Sheng Wang, Yi Ouyang, Yan Zhuge, JinJing Liao, Yue-Ling Long, Jie-Kai Zhou
Summary: The study found that concrete under true tri-axial compression exhibited oblique shear failure, and its strength enhancements were limited by the magnitudes of minor principal stress. Additionally, the effects of expansive agent content and steel fiber volume fraction on the axial stress-strain relationship were investigated. Results showed that a CaO-based expansive agent addition of at least 4% was needed to make a difference in the axial stress-strain curves. The addition of 8% expansive agent resulted in a steeper initial ascending slope, but the strength enhancements diminished with increasing confining pressures. However, the addition of steel fiber significantly enhanced the peak axial stress, and this enhancement effect became more prominent with increasing confining pressures. Therefore, the combined use of expansive agent and steel fiber has synergistic and complementary effects.
JOURNAL OF BUILDING ENGINEERING
(2023)
Article
Mechanics
JinJing Liao, Jun-Jie Zeng, Wai-Meng Quach, Jie-Kai Zhou
Summary: A FRP-confined seawater sea-sand concrete-filled stainless steel tubular column is proposed to solve the corrosion problems of CFST columns in coastal/offshore constructions and reduce the over-exploitation of river-sands. The axial compressive behavior of FRP-SSCFSST columns is investigated through testing 12 pairs of specimens with different influencing parameters. The experimental results show the strain-hardening response of FRP-SSCFSST specimens and the influence of FRP thickness, stainless steel tube thickness, and concrete strength on the column's performance.
COMPOSITE STRUCTURES
(2023)
Article
Engineering, Civil
Junlong Yang, Shiwei Lu, Jun-Jie Zeng, Jizhong Wang, Ziru Wang
Summary: This paper experimentally explores the long-term behavior of carbon FRP-confined SSC columns with different wrapping schemes under wet-dry cycles in seawater environments. The results show that long-term exposure has little influence on the failure modes of wrapped specimens, and different trends are observed for compressive strength retentions and strength enhancement ratio retentions due to the influence of unconfined compressive strength. Furthermore, a new strength model is derived by introducing the proposed strength degradation coefficients, which can provide satisfactory strength predictions for the exposed FRP-confined concrete under natural marine environments.
ENGINEERING STRUCTURES
(2023)
Article
Engineering, Civil
Peng-Da Li, Tao Zhang, Jun-Jie Zeng
Summary: The use of large rupture strain (LRS) fiber-reinforced polymer (FRP) composites as confining material in structural repair or retrofitting has become increasingly prominent due to their high deformation capacity. However, predicting the ultimate strain of LRS FRP-confined concrete is more complex and inaccurate compared to strength prediction, especially for severely damaged or highly deformed structural elements. This study proposes a unified ultimate strain model for LRS FRP-confined concrete based on an energy balance method, providing a wider application and better performance than other models. Additionally, the study accurately determines the characteristic points on the entire stress-strain curve using an updated database.
JOURNAL OF COMPOSITES FOR CONSTRUCTION
(2023)
Article
Engineering, Civil
Arash Karimi Pour, Amir Shirkhani, J. -J. Zeng, Y. Zhuge, Ehsan Noroozinejad Farsangi
Summary: This study investigates the simultaneous impact of GFRP and PP fibers on improving the shear performance of high-strength recycled coarse aggregate concrete beams. The results showed that with increasing the RCA content, PP fibers were more effective in enhancing the shear performance. It is recommended to use both PP fibers and RCA to provide enough ductility and avoid shear failure.
Review
Mechanics
JinJing Liao, Jun-Jie Zeng, Yan Zhuge, Yu Zheng, Guowei Ma, Lihai Zhang
Summary: This paper conducts a review on the stress reduction-recovery behavior of Fiber Reinforced Polymers (FRP)-confined concrete in stub columns, focusing on exploring the underlying causes. Five major causes for stress reduction have been identified: concrete core brittleness, concrete core shrinkage, non-uniform confinement due to the column shape, insufficient confinement due to FRP materials or fiber orientations, and the arching action. Strategies for mitigating stress reduction have also been summarized.
COMPOSITE STRUCTURES
(2023)
Article
Mechanics
JinJing Liao, Jun-Jie Zeng, Hai-Shuan Dai, Wei-Jian Chen, Jie-Kai Zhou
Summary: This study aims to develop a constitutive model for expansive concrete (EC) and steel fiber-reinforced expansive concrete (SF-EC) under tri-axial compression. The existing stress-strain models substantially underestimated the axial strains at peak stresses, leading to considerable deviation from the test results. A modified constitutive model was proposed with good performances in predicting the peak axial stresses and strains, as well as the full stress-strain curves.
COMPOSITE STRUCTURES
(2023)
Article
Engineering, Civil
Jun-Jie Zeng, Pei-Lin Li, Zi-Tong Yan, Jie-Kai Zhou, Wai-Meng Quach, Yan Zhuge
Summary: This study proposes the use of flexible fiber-reinforced polymer (FRP) grid as reinforcement for 3D printed high-performance concrete (HPC) plates. Twelve plates were tested to investigate the effects of loading direction and fabrication type on the flexural behavior of FRP grid reinforced HPC plates. The results show that the performance of 3D printed HPC plates can be significantly improved with FRP grid reinforcement.
ENGINEERING STRUCTURES
(2023)
Article
Engineering, Civil
Jun-Jie Zeng, Shu-Peng Chen, Peng Feng, Yan Zhuge, Kai-Di Peng, Jian-Guo Dai, Tian -Hui Fan
Summary: In this study, a novel connection system based on FRP bars and steel grouting sleeves was developed for the prefabrication construction of FRP bar-reinforced UHPC structures. The flexural tests showed that the proposed connection system is reliable, as the failure always occurred outside the connection zone and the crack opening displacements at the connection interface were smaller than 0.2 mm. The connection mode and fiber type had little influence on the first cracking load and the initial bending stiffness of the FRP bar-reinforced UHPC plates, but the horse tooth connection mode provided better ductility.
ENGINEERING STRUCTURES
(2023)
Article
Engineering, Civil
JinJing Liao, Jun-Jie Zeng, Xin-Chao Lin, Yan Zhuge, Shao-Hua He
Summary: This study investigates the punching shear behavior of carbon fiber-reinforced polymer (CFRP) bars or grid-reinforced ultra-high-performance concrete (UHPC) slabs. The test results show that FRP grids and short fibers help to distribute the applied loads and increase punching shear capacities. Increasing the reinforcement ratio in the FRP grids enhances the postcrack ductility response and punching shear capacity. SF and PE fiber additions also improve the punching shear capacity. Furthermore, a more accurate punching shear model is proposed for FRP grid-reinforced UHPC slabs, with an average error of 8% compared to traditional reinforced concrete slabs. The robustness of the proposed model will be further assessed with more test data in the future.
JOURNAL OF COMPOSITES FOR CONSTRUCTION
(2023)
Article
Construction & Building Technology
Jun-Jie Zeng, Jinjing Liao, De-Hua Zhu, Peng-Da Li
Summary: This study investigated the confinement mechanism of PET FRP-confined columns by conducting comprehensive compression tests on 36 specimens. The results showed a three-segment behavior (strain hardening-softening-hardening response) in all specimens. The size of the specimens had an insignificant effect on the axial stress-strain response of small and medium columns with a height less than 400 mm. A design-oriented model with improved performance was proposed and showed close agreements with the test results.
JOURNAL OF BUILDING ENGINEERING
(2023)
Article
Construction & Building Technology
Zhi-Wei Yan, Yu-Lei Bai, Qiang Zhang, Jun-Jie Zeng
Summary: Recycling waste concrete is crucial for land use and waste reduction. This study investigates the dynamic compressive properties of recycled aggregate concrete and suggests that increasing strain rate and incorporating flax fibers can improve its engineering application by reducing damage and increasing critical strain and energy consumption capacity.
JOURNAL OF BUILDING ENGINEERING
(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)
