A5024635239- Asphalt Pavement Performance Evaluation
- Infrastructure Maintenance and Monitoring
- Transport Systems and Technology
- Petroleum Processing and Analysis
- Smart Materials for Construction
- Geotechnical Engineering and Underground Structures
- Polymer Nanocomposites and Properties
- Lignin and Wood Chemistry
- Microbial Applications in Construction Materials
- Membrane Separation Technologies
- Urban Stormwater Management Solutions
- Phase Change Materials Research
- Corrosion Behavior and Inhibition
- Civil and Geotechnical Engineering Research
- Innovative concrete reinforcement materials
Beijing University of Technology
2019-2025
Inner Mongolia University of Technology
2025
Mongolian University of Science and Technology
2025
The use of reclaimed asphalt pavement (RAP) is believed to contribute significantly towards overall energy conservation and environmental protection efforts. However, the recycling aged binder from RAP requires a fundamental understanding interaction mechanism between such rejuvenators with recycled unmodified binders. This study quantitatively investigated impact agents in combination aging-rejuvenation process other modifiers (SBS, crumb rubber, high viscosity modifier) on fractional...
Oxidative aging induces significant stiffening of asphalt binders that leads to a pronounced reduction in the overall durability pavements. The strategic implementation antioxidant additives provides potential solution alleviate this issue. This work presents results from second phase global consortium for antioxidants research aimed at investigating effectiveness increasing binders. Sixteen laboratories around world participated effort and total 28 diverse geographical regions were tested....
Abstract The adhesion between asphalt binder and aggregate is very important to the performance durability of pavement. In order explore characterisation modified in microstructure during aging rejuvenation, virgin three kinds (styrene‐butadiene‐styrene block copolymer (SBS), rubber powder high viscosity elasticity [HVHE] modifier) different rejuvenation condition were prepared. micromorphology surface measured by atomic force microscopy. average roughness value was used as index evaluate...
ABSTRACTThis paper aims to investigate the effect of different environmental conditions on aging properties virgin asphalt binder and evaluate magnitude under conditions. The thermal, oxidative ultraviolet rutting resistance, fatigue resistance cracking was characterised based rheological parameters. contribution rate factors quantitatively analysed. Results showed that high temperature repaired cracks in caused by aging. single factor heat, oxygen light had little binder. High would...
The aging resistance of asphalt binder is one the key factors in determining service life pavements. In order to clarify mechanism anti-aging additives for improving binder, a study based on molecular dynamics simulations was done. effect SBS-modified analysed by parameters and rheological parameters. results showed that model obtained assembling structure four fractions SBS modifier reasonable. diffusion capacity molecules weakened after long-term aging. Aged higher energy barrier change...
Typical climatic environments such as UV radiation, high temperature and strong wind in cold arid regions have a significant effect on asphalt aging. The intent of this work is to reveal the evolution law natural aging SBS-modified under complex adverse climate environment regions. Furthermore, contribution rate various environmental factors was analyzed. Based rheological parameters, paper characterized influence viscoelastic properties, rutting resistance at temperature, fatigue cracking...
Abstract Ultraviolet (UV) radiation is one of the main causes asphalt pavement aging. The development UV-resistant technology great significance to improve durability pavement. In order evaluate feasibility carbon black (CB) and hindered amine light stabilizer (HALS) as additives, modified binders were prepared by adding CB HALS. dispersibility additives in binder was evaluated using a fluorescence microscope. Then, aging resistance their effects on virgin qualitatively calculating...
ABSTRACTAging of asphalt binder is a complex natural phenomenon with significant differences under the effect different environmental factors. The accelerated aging method commonly used in laboratory difficult to reproduce field binder. purpose this study reveal factors on gradient For reason, layered dissolution-peeling was developed recycle films. behaviour field-aged analysed based rheological parameters and chemical functional groups. results showed that achieved separation at 0.1 mm...
Improving the anti-ageing performance of bitumen plays a vital role in prolonging service life bituminous pavement. A additive for resisting all-weather ageing (BARAA), with excellent and fewer side effects, was developed this study. The can be doubled by using BARAA. results show that index influence quantitatively evaluate additives. BARAA composed amine antioxidant (1.89% weight base bitumen), Ni-containing (3%) hindered light stabilisers (0.7%). effectively delayed deterioration during...
Accelerated aging methods commonly used in laboratories struggle to replicate the outdoor process of asphalt binder. The aim this study is elucidate impact different environmental factors on binder and recreate exposure To achieve study’s objectives, was subjected various conditions through modes. Three modes (all factors, effects light, temperature, oxygen, others) were established assess behavior. This mode labeled O+UV-aging, earning it name O-aging. behaviors assessed across multiple...
With extremely bad climate and poor geographical environment in cold arid region, the deterioration failure of road materials are serious. In order to analyze characteristics natural aging behavior asphalt binder experiments were carried out based on exposure field test base. The multiscale characterization virgin under different conditions was by means macromechanical analysis microchemical composition analysis. results showed that effects laboratory simulated properties similar. There...
Crumb rubber can not only solve the environmental pressure but also improve properties of bituminous pavement. To study characteristics and mechanism ozone aging on CRMB, effects rheological chemical composition crumb rubber-modified bitumen (CRMB) were explored. It was compared with thermal oxygen. The results show that macromolecules such as aromatic rings polar functional group formed after aging, average molecular weight CRMB increased. Ozone reacted rapidly surface at beginning reaction...
With the implementation of Xiongan New Area and urbanization construction plan surrounding Beijing-Tianjin satellite, it is urgent to study apply sponge-permeable paving materials solve “urban waterlogging heat island effect.” In this paper, hydration microscopic characteristics cementitious are analyzed by means differential scanning calorimetry (DSC) test. The test water-cement ratio, porosity, gradation structure on strength permeability coefficient emphasized, change rule porous...
The aging behavior of asphalt binder is complex during the service life. accelerated simulated methods commonly used in laboratory are difficult to reproduce process field. purpose this study develop a method for predicting performance change First, multi-factor accelerating (MFA) test was developed age binder. Multi-scale characterization and correlation analysis were conducted on properties before after MFA aging. Then, evaluation index defined, which establish prediction equation rate....