A5024906639- Asphalt Pavement Performance Evaluation
- Infrastructure Maintenance and Monitoring
- Polymer composites and self-healing
- Innovative concrete reinforcement materials
- Geophysical Methods and Applications
- Seismic Imaging and Inversion Techniques
- Polymer Nanocomposites and Properties
- Geotechnical Engineering and Underground Structures
- Geotechnical Engineering and Analysis
- Hydraulic Fracturing and Reservoir Analysis
- Transport Systems and Technology
- Geotechnical Engineering and Soil Stabilization
- Seismic Waves and Analysis
- Water Quality Monitoring Technologies
- Catalysis and Hydrodesulfurization Studies
- Material Properties and Processing
- earthquake and tectonic studies
- Smart Materials for Construction
- Landslides and related hazards
- Advanced Technologies in Various Fields
- IoT and Edge/Fog Computing
- Catalysis for Biomass Conversion
- Earthquake Detection and Analysis
- Grouting, Rheology, and Soil Mechanics
- Electromagnetic Simulation and Numerical Methods
Tongji University
2019-2022
Lanzhou University
2012-2022
Chang'an University
2017-2021
Ministry of Education of the People's Republic of China
2020
Guilin University of Technology
2019
Freeze-thaw cycling is a widely used experiment for characterizing the moisture susceptibility of asphalt mixture. Moreover, it can also be as simulation pavement damage in northern latitudes. To investigate effect freeze–thaw cycles on performance deterioration mixtures, three types dense graded mixture specimens with different contents were prepared. These performed maximum being ten times. Volumetric parameter measurements and Indirect Tensile Strength (IDT) test carried out after one,...
To study the effects of hard segment content Polyurethane (PU) on performances polyurethane porous mixture (PPM), three PUs with different contents are selected in this paper. Firstly, properties including hardness, elongation, e-modulus PU were tested. Secondly, cantabro test was used for analyzing effect losses open-graded friction course 16 (OGFC16), OGFC13 and OGFC10 at immersed times temperatures. Thirdly, freeze–thaw splitting test, rutting coefficient three-point bending studying road...
To study the effects of morphology ZnO particles on properties asphalt binder and mixture, micro with different morphologies (agglomerate, sphere, rod flower), whose average size were 2 µm, made by homogeneous precipitation hydrothermal methods. A series tests, including softening point, bending beam rheometer (BBR), dynamic shear rheological (DSR), Marshall test, rutting test so on, used for evaluating mixture. The analysis variance (ANOVA) maximum relative difference (MRD) introduced to...
The construction temperature of commonly polymer-modified asphalt for thin overlay is high, and the prone to aging, which affects service life pavement. In this research, polyurethane (PU) binder was used replace prepare mixtures with different gradations at room temperature. pavement performance PU comprehensively evaluated by comparing common mixtures. results show that mechanical strength positively correlated content under same type gradation. Due excellent binder, properties dynamic...
Abstract Detection of hidden faults and sedimentary layers in the urban subsoil is significant for utilization underground space, earthquake hazard mitigation, so forth. Guilin, located southwest China, well known development most typical karst landform world has become an international tourist city that needs scientific planning knowledge space. After collecting waveform data recorded continuously over a period about 1.5 months by dense array 114 short-period seismic stations installed...
Polyurethane mixtures (PUMs) have excellent deformation resistance and fatigue resistance. However, their inferior water stability stripping been hindering wider application. To better understand the critical factors to PUMs’ stability, we investigated statistical relationships among resistance, splitting strength, binder-to-aggregate ratio (BAR), gradation type, fine aggregate content (FAC). A series of tests, including direct tensile test, binder bond strength boiling were used study...
As a highly efficient absorbing boundary condition, Perfectly Matched Layer (PML) has been widely used in Finite Difference Time Domain (FDTD) simulation of Ground Penetrating Radar (GPR) based on the first order electromagnetic wave equation. However, PML condition is difficult to apply GPR Element (FETD) second This paper developed non-split perfectly matched layer (NPML) for FETD Taking two-dimensional TM equation as an example, frequency domain was derived according definition complex...
Thermosetting polyurethane (PU) can significantly improve the high-temperature stability, mechanical strength, and low-temperature flexibility of asphalt. To broaden its application, a systematic understanding how PU interacts with asphalt is needed. Currently, limited effort has been focusing on polymerization modification mechanism thermosetting modified (TPUA). The interaction was revealed from three aspects: molecular structure, microstructure, surface free energy (SFE). First, process...
During exploration and development of shale gas, crack system is one key factor hydraulic fracturing. And the degree fracture an important affecting gas production. It particulary for to use seismic methods predict monitor crack, which can provide efficient methodes improve connectivity then increase This paper makes simulation on size, anistropy frequency according a new equivalent medium model (Chapman,2003). The research provides best band used discriminate different scale or size.
Highlights• Polyurethane binder with different elongations and tensile strengths are prepared by adjusting the isocyanate content.• Isocyanate content correlates well elongation strength.• a higher enhances binder-aggregate interface mixture has excellent cracking performance.• significantly affects crack resistance fatigue performance of mixture.