A5101900230- Concrete and Cement Materials Research
- Innovative concrete reinforcement materials
- Climate change and permafrost
- Cryospheric studies and observations
- Landslides and related hazards
- Magnesium Oxide Properties and Applications
- Geotechnical Engineering and Analysis
- Advanced Polymer Synthesis and Characterization
- Building materials and conservation
- Photopolymerization techniques and applications
- Customer Service Quality and Loyalty
- Recycling and utilization of industrial and municipal waste in materials production
- Magnetic Bearings and Levitation Dynamics
- Water resources management and optimization
- Robotics and Sensor-Based Localization
- Media, Religion, Digital Communication
- Arctic and Antarctic ice dynamics
- Rock Mechanics and Modeling
- Smart Materials for Construction
- Innovations in Concrete and Construction Materials
- Recycled Aggregate Concrete Performance
- Geotechnical Engineering and Soil Mechanics
- Wireless Sensor Networks and IoT
- Synthetic Organic Chemistry Methods
- 3D Surveying and Cultural Heritage
Minzu University of China
2025
Chinese Academy of Sciences
2022-2024
Northwest Institute of Eco-Environment and Resources
2022-2024
University of Chinese Academy of Sciences
2022-2024
Tongji University
2024
Xiangtan University
2004-2024
RMIT University
2018-2024
MIT University
2018
Tiangong University
2007
Xiamen University
2006
Against the background of global warming, permafrost areas are facing increasing thawing, and threat to surface Qinghai–Tibet Engineering Corridor (QTEC) is serious. It imperative understand current deformation analyze changes spatiotemporal characteristics for future warnings. At present, observation a long time series overall coverage vertical ground in QTEC lacking. This paper takes as its research object. uses pretreated LiCSAR product combines it with LiCSBAS package obtain monitoring...
Diatomite is a siliceous sedimentary rock containing amorphous silica, which can be used as green mineral admixture to improve the properties of concrete. This study investigates affecting mechanism diatomite on concrete performance by macro and micro tests. The results indicate that reduce fluidity mixture change its water absorption, compressive strength, resistance chloride penetration (RCP), porosity, microstructure. low workability. With increasing partial replacement for cement in...
The degradation of concrete caused by sulfate attack poses a significant challenge to its durability. Using nanomaterials enhance the mechanical and durability properties is promising solution. A study nano-alumina (NA)-modified erosion was carried out. results showed that compressive strength, quality, permeability chloride ions decreased during long-term sodium NA-modified exhibited higher resistance than ordinary (OPC), rate reduction in tensile strength low, sample NA1 penetration only...
This research presents the improvement effect and influence mechanism of nano-Al2O3 (NA) nano-SiO2 (NS) on concrete performance from macro micro scales. The crucial parameter investigated in this is various concentrations nano-reinforcement 1, 2, 3 wt. % cement, results show that NA NS can improve compressive strength resistance to chloride penetration (RCP) ability concrete, amount 1 2 exhibiting best effect, especially terms strength, which be increased by more than 20%. As nanoscale...
The purpose of this research is to solve the problem concrete performance deterioration caused by low temperatures in cold regions. Based on theoretical method improving with nanomaterials, effect nano-alumina (NA) properties under low- temperature curing studied from macro and micro scales. Through compressive strength test, it found that low-temperature reduces more than 15%. Additionally, incorporation NA can make up for adverse effects temperatures. Nevertheless, increase amount...
Hydraulic conductivity of concrete can be used as a key indicator in assessment service life structures. In this paper, probabilistic investigation on hydraulic is conducted, allowing for variation properties constituents. Concrete modeled three-phase composite at mesoscale, consisting mortar, aggregates, and the interfacial transition zone (ITZ). A finite element (FE) method developed to calculate concrete, which then verified using available experimental results. Based large pool samples...
Permafrost is a significant part of the cryosphere, which has gained increasing attention from scientists, policy-makers, and general public due to global warming, environmental degradation, water shortages, intense human activities. Although many permafrost research review articles have been published, these studies were predominantly limited either one subject or field, while systematic about based on bibliometric analysis methods remain limited. We aim fill this gap by conducting 13,697...
Abstract The free radical copolymerization of N‐(4‐carboxyphenyl)maleimide (CPMI) (M1) with hydropropyl methacrylate (HPMA) (M2) was carried out 2,2′‐azobis(isobutyronitrile) (AIBN) as an initiator in ethyl acetate at 75°C. composition copolymer prepared low conversion determined by elemental analysis. monomer reactivity ratios were found to be r 1 = 0.31 and 2 1.11 the YBR equation. number‐average molecular weight polydispersity gel permeation chromatography (GPC). Furthermore, solvent...
Abstract Free radical copolymerization of maleic anhydride (M1) with cyclohexene (M2) was carried out 2,2′‐azobis(isobutyronitrile) as an initiator in various solvents. The benzene and toluene proceeded a heterogeneous system to give alternating copolymer independent the monomer composition feed. powerful alternation tendency cannot be explained by participation charge‐transfer complex propagation due absence formation between system. Furthermore, initial rate (Rp) found depend on maximum...
The issue of frost heave in high-speed railway subgrades located areas with seasonal frozen soil is a significant concern that impacts both speed and safety, particularly during extreme weather conditions at high altitudes. This research focuses on the Menyuan section Lanzhou-Xinjiang railway, where average altitude 3,400m deep exists. Based field monitoring temperature, moisture, deformation subgrade coarse particle filler from 2015 to 2022, investigates hydrothermal process freeze-thaw,...
With the developments of wireless communication and network technology, data service will be more widely used in commerce. In order to realize safe electronic commerce, security should assured. As a rising technology implement safety,WPKI (Wireless Public Key Infrastructure) becomes important. This article discuss structure, implementing principle, infrastructure, application model environment WPKI, analyze functions WPKI WAP security, probe into prospect WPKI.