A5054559473- Innovative concrete reinforcement materials
- biodegradable polymer synthesis and properties
- Structural Behavior of Reinforced Concrete
- Innovations in Concrete and Construction Materials
- Polymer crystallization and properties
- Polymer Nanocomposites and Properties
- Concrete and Cement Materials Research
- Structural Load-Bearing Analysis
- Advanced ceramic materials synthesis
- Carbon dioxide utilization in catalysis
- Geotechnical and Geomechanical Engineering
- MXene and MAX Phase Materials
- Simulation and Modeling Applications
- Seismology and Earthquake Studies
- Structural Response to Dynamic Loads
- Surface Modification and Superhydrophobicity
- Biopolymer Synthesis and Applications
- Geotechnical Engineering and Underground Structures
- Advanced materials and composites
- Smart Materials for Construction
- Icing and De-icing Technologies
Tianjin University
2002-2023
China State Construction Engineering (China)
2023
University of Chinese Academy of Sciences
2013
Institute of Coal Chemistry
2013
Chinese Academy of Sciences
2013
Shenyang University of Technology
2012
Abstract Steel fibers may be added to self‐compacting concrete (SCC) improve its mechanical performance; however, such improvement is subject a number of conditions, an important one which the distribution and orientation fibers. The objective this study propose new method capable predicting variation steel immersed in SCC during flow. flow fiber reinforced simulated by computational fluid dynamics software, volume used track free surface concrete. On basis velocity field obtained motion...
Abstract This paper discusses the synergetic effect of ground granulated blast‐furnace slag and hooked‐end steel fibers on fresh, mechanical, microstructural properties fiber‐reinforced self‐compacting concrete containing fly ash. A total 12 mixtures were prepared. Hooked‐end at four different volume fractions (0%, 0.3%, 0.6%, 0.9%) applied as reinforcement, while contents 10%, 30% cement weight) was varied; ash content (20% kept constant to partially replace Portland cement. The plain fiber...
Abstract Random copolyester namely, poly(ethylene terephthalate‐ co ‐sebacate) (PETS), with relatively lower molecular weight was first synthesized, and then it used as a macromonomer to initiate ring‐opening polymerization of l ‐lactide. 1 H NMR quantified composition structure triblock copolyesters [poly( ‐lactic acid)‐ b ‐poly(ethylene ‐sebacate)‐ ‐poly( acid)] (PLLA‐PETS‐PLLA). Molecular weights were also estimated from spectra, confirmed by GPC. Copolyesters exhibited different...
This paper investigates the effect of fiber volume fraction on distribution in steel reinforced self-compacting concrete (SFRSCC) through experiments and numerical simulations. Three types SFRSCC beam specimens with different fractions (0.3%, 0.6%, 0.9%) were cut to expose fibers. The number orientation angle fibers sections determined by image analysis techniques. Fiber density, segregation coefficient, dispersion coefficient applied evaluate sections. Based experimental data, models...
Abstract Segmented copolyesters, namely, poly(butylene terephthalate)–poly(ethylene terephthalate‐ co ‐isophthalate‐ ‐sebacate) (PBT‐PETIS), were synthesized with the melting transesterification processing in vacuo condition involving bulk polyester produced on a large scale (PBT) and ternary amorphous random copolyester (PETIS). Investigations morphology of segmented copolyesters undertaken. The two‐phase model was confirmed by transmission electron microscopy dynamic mechanical thermal...
Abstract In this paper, two different analytical methods were applied to investigate nonisothermal crystallization behavior of copolyesters prepared by melting transesterification processing from bulk polyesters involving poly (butylene terephthalate) (PBT) and ternary amorphous random copolyester poly(ethylene terephthalate‐co‐isophthalate‐co‐sebacate) (PETIS). The results show that the half‐time depended on reaction time decreased with content in segment. modified Avrami model describes...
Abstract Silica were introduced to segmented copolyester system (poly(butylene terephthalate)‐poly(ethylene terephthalate‐ co ‐isophthalate‐ ‐sebacate) (PBT‐PETIS)) by in situ polymerization. Investigations on melting behavior and crystalline structure undertaken, the dispersion situation of silica composites was detected. A diverse crystallization characteristic has been found when modified Avrami analytical method applied investigate nonisothermal composites. Crystallization rate...
Copolyesters, namely, poly(butylene terephthalate)-poly(ethylene terephthalate-co-isophthalate-co-sebacate) (PBT-PETIS) were synthesized by means of melting transesterification. In the five-component copolycondensates system, average sequence length was calculated based on analysis 1H-NMR spectra and equal probability interchange reaction for three kinds polyester units in PETIS with PBT. The results reveal that both PBT segments vary almost linearly time. determination degree randomness...
It has been proved by more and practices that the simulation technique (ST) can get a satisfied result than experiments in some cases like large-span or high-raise structures.Herein, ST is applied to simulating earthquake response of high building on rigid-foundation based SIMUSHIS (Multimedia Simulation System Seism-induced High-rise Structure) which developed ANSYS Workbench.In this paper, analysis method for structures, combined with technology real-time dynamic display, will be set up...
Because of the problems caused by icing and snow, it is meaningful to develop coatings for anti-icing. In this paper, a superhydrophobic coating was successfully prepared compounding fluorine-containing acrylate polymer, polysiloxane nano-SiO 2 . Results Fourier transform infrared spectroscopy (FT-IR) showed that epoxy groups in polymer were partially cross-linked with silanol polysiloxane, while self-crosslinking silanols dominates curing reaction. It proven there positive correlation...