Article
Construction & Building Technology
Xueyan Zhou, Biao Ma, Kun Wei, Xiaoqing Wang
Summary: Thermally induced shape memory polymers have been incorporated into asphalt mixtures to improve high-temperature stability, low-temperature performance, and water stability. The addition of fibrous shape memory epoxy resin showed promising results in enhancing the overall properties of the asphalt mixtures.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Construction & Building Technology
Xueyan Zhou, Biao Ma, Kun Wei, Xiaoqing Wang
Summary: Shape memory epoxy resin (SMER) is a new intelligent polymer material that can improve the deformation recovery performance of asphalt mixtures. By adjusting the dosage, loading rate, and deformation recovery temperature of SMER, the final deformation recovery rate of the asphalt mixture can be increased. The infrared thermal imaging test reveals that the shape memory function of SMER is activated by pavement temperature and solar energy, aiding in the recovery of the asphalt mixture and slowing down the appearance of rutting in asphalt pavement.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Construction & Building Technology
Xueyan Zhou, Man Zhu, Biao Ma, Ning Li, Xiaoqing Wang
Summary: Thermal shape memory epoxy resin (T-SMER) is a novel smart material that can repair initial cracks in asphalt mixtures by sensing and responding to temperature changes. The granular and filamentous T-SMER were examined for their basic properties, and it was found that the filamentous T-SMER was more suitable for application in asphalt mixtures due to its improved compatibility and self-healing ability. The addition of filamentous T-SMER significantly enhanced the consistency, strength, and self-healing property of asphalt.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Construction & Building Technology
Xingyu Yi, Huimin Chen, Houzhi Wang, Chenguang Shi, Jun Yang
Summary: The study explored the feasibility of using epoxy asphalt for recycling mixtures containing 100% RAP, with the recycled mixture showing better rutting resistance but inferior fatigue performance compared to virgin epoxy asphalt. The low temperature cracking resistance and moisture susceptibility of the recycled mixture were similar to the virgin mixture.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Kaixiao Cui, Guancheng Jiang, Guoshuai Wang, Lili Yang, Xiulun Shen
Summary: The study found that thermosetting shape memory epoxy polymers with tunable shape-memory temperatures can be achieved by controlling the content of the curing agent DDM. When the DDM content is between 17-19%, the shape fixity and shape recovery ratio of the SMEPs reach approximately 100%. Additionally, the shape recovery time decreases as temperature increases.
KOREAN JOURNAL OF CHEMICAL ENGINEERING
(2021)
Article
Green & Sustainable Science & Technology
Qing Lu, Chunfu Xin, Mohammed Alamri, Mohammad Alharthai
Summary: This study improved the durability and strength of porous asphalt mixture by formulating a bio-based epoxy asphalt binder (BEAB) and optimizing its mixture design. Testing showed that the formulated BEAB can enhance the raveling resistance and stability of porous asphalt mixture without affecting its permeability.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Construction & Building Technology
Jiayun Xu, Wei Si, Biao Ma, Xingxiang Kang, Xiaoqing Wang
Summary: In response to the problems of insufficient bonding force and low overall strength of asphalt as the binder in the porous mixture, this paper developed a new epoxy resin binder with high bonding strength, good durability, and easy operation and excellent low-temperature toughness. The mixture ratio design method of macroporous (18%-26%) epoxy resin mixture can directly calculate the target mixture ratio according to the porosity requirement. The prepared mixture shows good mechanical strength, deformation coordination ability, and improved permeability when the void ratio is greater than 22%.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Construction & Building Technology
Wei Zhang, Zhengqi Zhang, Qinsheng Zhao
Summary: A solvent-type cold asphalt liquid (CAL) modified by waterborne epoxy and styrene-butadiene rubber (WER+SBR) has been developed to improve the construction workability and initial strength of pothole repair using cold mix asphalt (CMA) in low-temperature environments. An orthogonal test was conducted to determine the best raw material ratio, and the results showed that WER+SBR type CMA had excellent performance in various aspects compared to ordinary CMA. It is a significant development in improving the repair of asphalt pavement potholes.
JOURNAL OF MATERIALS IN CIVIL ENGINEERING
(2022)
Article
Construction & Building Technology
Jia Sun, Sang Luo, Wei Huang, Youheng Li
Summary: This study investigates the laboratory performance of low-content thermosetting epoxy asphalt mixtures (LTEAM) with different epoxy resin (EP) contents. The results show that increasing the EP content improves the moisture damage resistance, elastic properties, and temperature rutting resistance, while reducing the cost.
JOURNAL OF MATERIALS IN CIVIL ENGINEERING
(2023)
Article
Polymer Science
Haitao Zhuo, Zhen He, Jun Liu, Guocheng Ma, Zhenghe Ren, Youhan Zeng, Shaojun Chen
Summary: In this study, linear thermoplastic epoxy polymers (EPx) with shape memory properties were prepared using a bifunctional monoamine diglycolamine (DGA) as a curing agent, and bifunctional rigid epoxy resin (E-51) and bifunctional flexible epoxy resin (PPGDGE) in a bulk polymerization reaction. The introduction of PPGDGE can adjust the T-g of the material and improve its fracture strain and micro-phase separation structure. The material can be easily recycled and reprocessed, and shows potential for 3D printing or other thermoplastic remolding.
Article
Construction & Building Technology
Shuai Zhang, Jun Long, Henglong Zhang, Mingyu Zhou
Summary: Cold-mixed epoxy-asphalt mixture (CMEAM) has gained attention in steel bridge pavement construction due to its road performance and low gas emissions. Fractal theory was used to distinguish gradations and factors like stone-on-stone contact and stability were considered for design parameters. Test results showed that fractal dimensions influenced low-temperature performance and moisture stability, meeting technical requirements.
JOURNAL OF MATERIALS IN CIVIL ENGINEERING
(2023)
Article
Biochemistry & Molecular Biology
Jiaoman Li, Zhengyi Zhang, Yan Zhang, Fangli Sun, Dongyue Wang, Hui Wang, Zhenfu Jin
Summary: In this study, lignosulfonate (LS) was successfully introduced into the epoxy resin matrix through ethylene glycol (EG) dissolution and linked into the cross-linked network structure. The ultimate properties of cured samples were effectively adjusted by changing the proportion of LS and EG components, with optimal curing process parameters determined through analysis of curing reaction and kinetics. The thermal and mechanical properties of the modified epoxy resin were significantly improved by the addition of LS and EG.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Polymer Science
Zhihua Li, Yu Yang, Li Ma, Hongxin Liu, Xin Zhang
Summary: In this study, a binary shape memory epoxy resin system was developed and applied to carbon fiber reinforced shape memory composites. It was found that the addition of diglycidyl-4,5-epoxycyclohexane-1,2-dicarboxylate epoxy resin significantly improved the glass transition temperature, tensile strength, and Young's modulus of the composites, while reducing the impact strength. The shape memory composites exhibited good shape fixity and recovery ratios after 30 cycles, and showed excellent mechanical properties compared to neat shape memory epoxy resin.
Article
Green & Sustainable Science & Technology
Dongyu Niu, Xiwang Xie, Zhao Zhang, Yanhui Niu, Zhengxian Yang
Summary: Utilizing processed waste materials in road construction is crucial for environmental and economic reasons. The study demonstrated that modified asphalt with 20% GTR and 2.5%-5% WCO showed satisfactory high temperature resistance and low temperature rheological properties. By incorporating waste materials, the modified asphalt mixture displayed improved anti-rutting properties, water stability, and superior low-temperature performance compared to normal asphalt mixture.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Construction & Building Technology
Sang-Yum Lee, Young-Man Yun, Tri Ho Minh Le
Summary: The evaluation of fatigue performance of asphalt mixtures, especially those with polymer modifiers, is of increasing significance for asphalt pavement. This study focuses on comparing the fatigue and reflection crack performance of two different types of asphalt, and investigates the effects of incorporating crumb rubber powder and epoxy resin. The results show that the modified asphalt exhibits better strain recovery, reduced strain rate, and improved fatigue crack resistance compared to the conventional asphalt. These findings contribute to the development of more durable and reliable polymer-modified asphalt mixtures, promoting sustainable road infrastructure.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2023)
Article
Engineering, Civil
Dongdong Ge, Dongzhao Jin, Chaochao Liu, Junfeng Gao, Miao Yu, Lance Malburg, Zhanping You
Summary: The use of fiber in asphalt mixtures improves the tensile strength, cracking resistance, rutting and stripping resistance of the mixture. The modification with fiber leads to increased fracture energy, peak load, and maximum crack mouth opening displacement (CMOD), as well as improvements in dynamic modulus, rutting parameter, and fatigue parameter. Fiber modification restricts cracking propagation in the asphalt mixture and can provide valuable experience for future applications in asphalt pavement.
TRANSPORTATION RESEARCH RECORD
(2022)
Article
Chemistry, Physical
Miao Yu, Yao Kong, Zhanping You, Jue Li, Liming Yang, Lingyun Kong
Summary: This study used a finite element model and ABAQUS software to investigate the friction performance between radial tires and asphalt pavement. The effects of pavement texture, tire parameters, and water film thickness on the tire-pavement contact force were analyzed through steady state rolling analysis and dynamic explicit analysis. The results provide theoretical references for safe driving.
Article
Chemistry, Physical
Chao Peng, Hanneng Yang, Zhanping You, Hongchao Ma, Fang Xu, Lingyun You, Aboelkasim Diab, Li Lu, Yudong Hu, Yafeng Liu, Jing Dai, Zhibo Li
Summary: This study used molecular dynamics method to investigate the adhesion performance between wax-based warm mix asphalt (WWMA) and aggregate, revealing that wax modifiers can enhance the adhesion between asphalt and aggregate.
Article
Green & Sustainable Science & Technology
Dongzhao Jin, Kwadwo Ampadu Boateng, Siyu Chen, Kai Xin, Zhanping You
Summary: This study compares the long-term aging performance of dry-processed rubber-modified asphalt mixture with styrene-butadiene-styrene polymer-modified asphalt mixture on heavy traffic volume roads in the wet-freeze environment of Michigan. The results show that the dry-processed rubber-modified asphalt has better cracking resistance and fatigue life.
Article
Engineering, Civil
Hui Yao, Yanhao Liu, Xin Li, Zhanping You, Yu Feng, Weiwei Lu
Summary: This study proposes a novel pavement crack detection method based on YOLOv5 and attention mechanisms. By adding different attention modules, the detection accuracy and speed of the model can be significantly improved while meeting the real-time detection requirements with high precision.
IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS
(2022)
Article
Construction & Building Technology
Miao Yu, Shikang Liu, Zhanping You, Zhi Yang, Jue Li, LiMing Yang, Geng Chen
Summary: This study investigates the effects of aggregate texture, traffic volume, and rock characteristics on pavement skid resistance and develops prediction models for the pavement friction coefficient attenuation. The results show that incorporating traffic volume and rock type greatly improves the accuracy of the model, indicating their significant effects on pavement skid resistance. Random forest regression algorithm is recommended for higher prediction accuracy.
INTERNATIONAL JOURNAL OF PAVEMENT ENGINEERING
(2023)
Article
Construction & Building Technology
Ziye Ma, Hainian Wang, Yuanle Li, Mohd Rosli Mohd Hasan, Ning Xu, Zhanping You
Summary: This study investigated the effects of components' ratios and their interactions on the curing process and surface function of sand fog seal. Water can regulate fluidity and dispersibility, but prolongs the curing process. Modified sodium bentonite as filler shortens the curing time. The interaction of water and filler significantly affects bonding strength, with a recommended water-filler ratio of 1.5. The sand content should be controlled to less than 25%. A formulation design guideline for sand fog seal with recommended formulation of 21.8% water, 30% filler, and 25% sand was proposed based on desirability optimization methodology.
INTERNATIONAL JOURNAL OF PAVEMENT ENGINEERING
(2023)
Article
Chemistry, Physical
Xiaodong Zhou, Dongzhao Jin, Dongdong Ge, Siyu Chen, Zhanping You
Summary: The objective of this study is to develop modeling procedures for granular material discrete element models (DEM) with high efficiency and reliable accuracy. The new modeling procedures use coarse aggregate templates to improve simulation accuracy and employ the hexagonal close-packed (HCP) structure instead of the simple cubic-centered (SCC) structure. The mechanical calculation for contact micro-parameters was derived and verified through various tests, showing the effectiveness and reliability of the new approach.
Editorial Material
Chemistry, Physical
Xueyan Liu, Yuqing Zhang, Zhanping You, Linbing Wang, Changhong Zhou
Article
Chemistry, Physical
Dongzhao Jin, Dongdong Ge, Jiaqing Wang, Lance Malburg, Zhanping You
Summary: Dry-processed rubberized asphalt mixture has shown improved pavement performance compared to conventional asphalt. This study aimed to reconstruct rubberized asphalt pavement and evaluate its performance through lab and field tests. The findings showed enhanced resistance to cracking and improved anti-rutting performance. The rubberized asphalt pavement also reduced noise levels and predicted fewer pavement distresses. Overall, dry-processed rubber-modified asphalt pavement performs better than conventional asphalt pavement.
Review
Green & Sustainable Science & Technology
Fangyuan Gong, Xuejiao Cheng, Qinghua Wang, Yi Chen, Zhanping You, Yu Liu
Summary: This paper conducts a review and analysis of the application and significance of 3D printing technology in pavement maintenance engineering, comparing it with traditional methods. Suggestions and conclusions are proposed, including the improvement of automation and standardization in pavement maintenance engineering through 3D printing technology. Different 3D asphalt printing technologies and equipment are recommended for repairing cracks and minor potholes, and efficient repair of varying cracks.
Article
Energy & Fuels
Qingyun Zhao, Fei Han, Zhanping You, Yuhong Huang, Xiaohui She
Summary: This study conducted a comprehensive research on waste utilization and biomass energy development using mixed wastewater and industrial waste gas as the growing medium and resource of inorganic carbon for microalgae, based on closed photobioreactor cultivation. The experimental results showed that Model algal species 3 (M3) is more suitable for producing biodiesel in the situation of wind power, generating 6800 L of algal liquid, 32.3 kg of microalgae, 42.27 kg of CO2 emission reduction, and 12.47 kg of biodiesel in a single production cycle. Microalgae biodiesel production based on photobioreactors can achieve negative carbon emissions with wind energy supply, and the annual biodiesel production is at least 112.89 times that of open culture ponds. This research realizes the coupling between waste utilization and biomass energy development, reducing biodiesel development costs while maintaining high economic efficiency of waste disposal and producing negative carbon emissions.
Article
Construction & Building Technology
Chao Peng, Yudong Hu, Zhanping You, Dongzhao Jin, Xiong Xu, Chong Guo, Yafeng Liu, Tianhao Wu, Hang Liu, Hanneng Yang, Linjie Bao
Summary: This study aims to investigate the application of a polyurethane superhydrophobic coating on asphalt pavement to improve skid resistance and anti-icing ability. The experimental results show that the coating has excellent superhydrophobic properties, and it demonstrates good anti-icing properties and road performance.
JOURNAL OF MATERIALS IN CIVIL ENGINEERING
(2023)
Article
Chemistry, Physical
Meng Wu, Zhanping You, Dongzhao Jin
Summary: This paper quantifies the interaction between asphalt and aggregate at the microscope level and analyzes the adhesion force and interface stress between them in chip seals through nanoindentation simulation. The findings provide insights for optimizing chip seal design and enhancing asphalt pavement performance.
Article
Construction & Building Technology
Dongzhao Jin, Lei Yin, Kai Xin, Zhanping You
Summary: The laboratory performance of asphalt emulsion and hot rubber asphalt used in chip seal applications was compared. Tests were conducted to evaluate the bond quality and durability of the chip seal samples prepared with both materials. Results showed that the hot rubber chip seal demonstrated significantly higher bond strength and better aggregate retention and cohesive strength than the asphalt emulsion chip seal. However, both treatments were deemed acceptable for pavement maintenance despite the weak bond between the materials and aggregate under cyclic load and freeze-thaw conditions.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2023)
