Article
Polymer Science
Abdulrahman Hamid, Hassan Baaj, Mohab El-Hakim
Summary: Modifying asphalt binders is an effective method to improve the performance of asphalt pavement, and this study evaluated the effects of temperature, stresses, polymer type, and modification rate on the rutting behavior of modified asphalt binders. Through laboratory testing, the rheological properties of the binders and the rutting resistance of asphalt mixtures were investigated. The findings provide insights into the best modifiers and mixtures for different temperature conditions.
Article
Construction & Building Technology
Zhilong Cao, Jianying Yu, Juan Yi, Guoqiang Sun, Song Xu, Xiaobin Han
Summary: This paper explores the effective recycling of waste SBS modified asphalt mixture. The results show that reactive rejuvenation method significantly enhances the stability and resistance of ASMBM, and improves its cracking resistance. Additionally, reactive rejuvenation improves the fatigue life and water stability of the mixture. The road performances of reactive rejuvenated ASMBM continue to improve in the early stage after rejuvenation.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2023)
Article
Construction & Building Technology
Xiaoxu Zhu, Miomir Miljkovic, Yuhong Wang, Gengren Hao
Summary: This research examines the rheological properties of neat and SBS-modified asphalt binders in their non-linear viscoelastic range at a high temperature. The effects of strain amplitude, polymer content, shear frequency, and the interactions of these factors on the NLVE behaviors are analyzed. The study also explores the impact of short-term aging on the binders' properties and examines the size and morphology of polymer phases in the binders.
INTERNATIONAL JOURNAL OF PAVEMENT ENGINEERING
(2023)
Article
Biochemical Research Methods
Ruoyu Tang, Xinyu He, Ruiqi Wang
Summary: The study presents a general computational method for constructing maps between different cell fates and parametric conditions by systematic perturbations. The method does not require accurate parameter measurements or bifurcations. The maps obtained can help in understanding how systematic perturbations drive cell fate decisions and transitions, providing valuable information for predicting and controlling cell states.
Article
Chemistry, Physical
Jingrong Zhu, Wenyuan Xu
Summary: The study found that adding 6% silica fume to composite-modified asphalt can significantly improve the aging resistance and low-temperature crack resistance of the asphalt.
Article
Chemistry, Physical
Pawel Mieczkowski, Bartosz Budzinski, Mieczyslaw Slowik, Jan Kempa, Wojciech Sorociak
Summary: This article presents the results of tests conducted on bitumens modified with two types of styrene-butadiene-styrene copolymer (linear and radial). It was found that the effectiveness of the modification varied with the type of copolymer added.
Article
Chemistry, Physical
Sylwia Dziadosz, Mieczyslaw Slowik, Filip Niwczyk, Marcin Bilski
Summary: This study investigated the relaxation behavior of polymer modified asphalt binders at low temperatures, finding that an increase in SBS copolymer content accelerates the relaxation process while aging slows it down. Additionally, it was demonstrated that a higher content of SBS elastomer in the asphalt binder reduces the impact of short-term aging on stress relaxation ability at low temperatures.
Article
Polymer Science
Jing Li, Zhibin Su, Junxian Huang, Weijie Feng, Tingyang Wei, Kun Meng, Yaseen Muhammad
Summary: The study found that using polydopamine bionic coating and KH570 composite modified PAN fiber as a secondary modifier has a significant enhancement effect on SBS modified asphalt, improving deformation resistance, shear strength, and adhesion effect. The roughened surface of the fiber after modification facilitated better adhesion of SBS modified asphalt, leading to improved performance of the composite asphalt.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Green & Sustainable Science & Technology
Xiaoguang Yao, Yan Wang, Tao Xu
Summary: This study focuses on the development of new recycling, aging simulation, and regeneration methods of reclaimed SBS asphalt through optimizing centrifugation method for RAP, studying the relationship between asphalt performance indexes and aging duration, discussing regeneration methods, and revealing the regeneration mechanism. The developed methods show advantages in test efficiency and result accuracy, with proposed ratios and content of modifiers improving the stability and resistance of the rejuvenated asphalt. The regenerated properties of reclaimed asphalt samples are also analyzed.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Construction & Building Technology
Zeyang Chen, Wenke Huang, Kuanghuai Wu, Guihai Nie, Yuqi Zheng, Jianwen Song, Xu Cai, Jianbo Wu, Jiandong Huang
Summary: This study analyzes the aging performance of SBS modified asphalt binder used in fluid mastic asphalt (FMA). Through testing its macro and micro properties, it is found that heating the asphalt binder at ultra-high temperatures can lead to performance degradation, especially in the aging process at 225 degrees Celsius. This is of significance for the construction process of FMA.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2023)
Article
Materials Science, Composites
Yongjun Meng, Pengfei Qin, Muhammad Yaseen, Jing Chen, Tianyi Yan, Weixing Gan, Jiechao Lei, Jing Li
Summary: This study resolves the poor high-temperature performance and lower dissolution of styrene-butadiene-styrene (SBS) modified asphalt and soybean bio-asphalt (SBA) by using tannic acid modified bamboo fiber. The results showed that the addition of bamboo fiber and waste soybean oil-extracted bio-asphalt can significantly enhance the rheological properties of the modified asphalt.
POLYMER COMPOSITES
(2022)
Article
Polymer Science
Bei Chen, Fuqiang Dong, Xin Yu, Changjiang Zheng
Summary: The study focused on replacing part of the SBS modifier with waste polyurethane to prepare WP/SBS composite modified asphalt and analyzed its properties and microstructure. Tests showed that WP has potential to be a substitute for SBS in producing composite modified asphalt with good low-temperature resistance.
Article
Green & Sustainable Science & Technology
You Wu, Peng Huang, Yunhong Yu, Chenguang Shi, Huimin Chen, Houzhi Wang, Jun Yang, Zhen Leng, Wei Huang
Summary: The crumb rubber (CR) recycled from waste tires can effectively improve the mechanical properties of bitumen. By analyzing the results of stress-controlled large amplitude oscillatory shear (LAOS) tests, it is concluded that the incorporation of CR has a positive influence on the nonlinear properties of bitumen, which effectively improves the stress bearing capacity. However, simply increasing the CR content does not always improve the performance of bitumen.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Chemistry, Physical
Navid Hemmati, Shyaamkrishnan Vigneswaran, Hyun Hwan Kim, Moon-Sup Lee, Soon-Jae Lee
Summary: This study presents an experimental evaluation of improving binder resistivity by using Styrene-Butadiene-Styrene (SBS) and processed oil. The physical properties, rheology, and cracking were studied. The results showed that the addition of SBS increased viscosity, but the co-modification of asphalt binder with processed oil significantly modulated the viscosity value. Processed oil reduced rutting resistance, but the addition of SBS improved it. The addition of SBS and processed oil also improved the value of G sin delta, as well as the stiffness values of modified asphalt binders according to BBR.
Article
Chemistry, Analytical
Ezequiel Jose Novacoski, Isis Kaminski Caetano, Fabio Luiz Melquiades, Aline Marques Genu, Yohandra Reyes Torres, Pedro Pablo Gonzalez-Borrero
Summary: This study applied spectroscopic techniques and statistical tools to analyze Dystrudepts and Haplodux soils, and built models for soil classification and estimation of soil properties. The results showed that energy dispersive X-ray fluorescence and Fourier transform mid-infrared spectroscopy were the most accurate techniques for soil classification, while photoacoustic spectroscopy was suitable for estimating soil texture.
MICROCHEMICAL JOURNAL
(2022)
