A5102021409- Tailings Management and Properties
- Concrete and Cement Materials Research
- Rock Mechanics and Modeling
- Magnesium Oxide Properties and Applications
- Mine drainage and remediation techniques
- Recycling and utilization of industrial and municipal waste in materials production
- Landfill Environmental Impact Studies
- Bauxite Residue and Utilization
- Materials Engineering and Processing
- Recycled Aggregate Concrete Performance
- Underground infrastructure and sustainability
- Parasites and Host Interactions
- Environmental remediation with nanomaterials
- Geotechnical and Geomechanical Engineering
- Advanced materials and composites
- Mining and Resource Management
- MXene and MAX Phase Materials
- Metallic Glasses and Amorphous Alloys
- Quasicrystal Structures and Properties
- Parasitic Infections and Diagnostics
- Water Treatment and Disinfection
- Calcium Carbonate Crystallization and Inhibition
- SARS-CoV-2 detection and testing
- Mining and Gasification Technologies
- Geochemistry and Elemental Analysis
Central South University
2017-2024
Zhejiang Center for Disease Control and Prevention
2020-2022
Luleå University of Technology
2019-2020
TED University
2012
North China University of Science and Technology
2012
National University of Singapore
2009
Granulated copper slag (GCS) is currently applied to partial cement replacement as a supplementary cementitious material (SCM), but with low rate due its pozzlanic activity. In this contribution we introduce an approach enhance the reactivity of GCS by modifying mineral structure using calcium oxide (CaO) and aluminum (Al2O3) both 10 wt.%, in molten state. Blended pastes were formulated (70 wt.%) modified (30 wt.%). The development hydration heat strength examined isothermal calorimetry...
This study aims at evaluating the effect of ultrafine granulated copper slag (UGCS) on hydration development blended cement and mechanical properties mortars. The UGCS with median particle size 4.78 μm BET surface area 1.31 m2/g was used as a replacement to prepare cements. Hydration heat emission performance mortars were investigated by using isothermal calorimetry strength tests, respectively. X-ray diffraction (XRD), thermogravimetric analysis (TGA), scanning electron microscopy (SEM)...
Cemented paste backfill (CPB), a technology placing the solid waste into mined-out stopes in mine through pipeline transportation, has been widespread all over world. The resistance loss is an important parameter for transport, which significantly affected by slurry characteristics. However, coupling effect of inlet velocity (IV), particle mass concentration (PMC), and size (PS) not well evaluated diagnosed. Hence, CFD-based three-dimensional network simulation CPB flow L-shaped pipe at...
First-principles calculations based on density-functional theory and the generalized gradient approximations have been carried out to investigate interface properties of β-Si3N4/Si(111) systemically. An structure without dangling bonds at was proposed, this found energetically more favorable than existing model. Perfect bonding strong Si–N due charge transfer from Si atoms N result in stable structure. The calculated band offsets are agreement with previous theoretical estimations...
The application of granulated copper slag (GCS) to partially replace cement is limited due its low pozzolanic activity. In this paper, reconstituted (RGCS) was obtained by adding alumina oxide (Al2O3) liquid slag. Blended pastes were formulated a partial substitute for ordinary Portland (OPC) with the RGCS (30 wt%). activity, mechanical development, and microstructure characterized. results show that 5-10 wt% Al2O3 contributes increase in magnetite precipitation RGCS. addition alleviates...
The rapid concentration of tailings is a crucial initial step in the cemented paste backfill (CPB) process, as it ensures stability backfilling slurry and continuity process. structure flocs plays pivotal role concentration, directly contributing to such critical technical parameters settling speed bottom flow concentration. However, most current studies focus on flocculant addition rather than itself. Also, there lack uniform characterization flocculation system. This study establishes...
Water-quenched copper slag (WCS) modified with alumina (Al2O3) has been proven as a cement substitute; however, the effect of Al2O3 on structural properties WCS related to pozzolanic activity not well investigated. The and different amounts are characterized by X-ray diffraction, differential scanning calorimetry, Fourier-transform infrared spectroscopy, photoelectron uniaxial compressive strength test. results show that only amorphous exists in slag, stability first increases then decreases...