Research Progress and Prospect of Molecular Dynamics of Asphalt Systems(Review)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F20%3A00357511" target="_blank" >RIV/68407700:21110/20:00357511 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.11896/cldb.19070106" target="_blank" >https://doi.org/10.11896/cldb.19070106</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.11896/cldb.19070106" target="_blank" >10.11896/cldb.19070106</a>

Jazyk výsledku

čínština

Název v původním jazyce

沥青体系的分子动力学研究进展及展望

Popis výsledku v původním jazyce

With the rapid development of China road engineering, asphalt concrete has been widely used in road engineering. In recent years, the research on asphalt materials is not limited to macroscopic performance experiments, but also extended to mesoscopic and microscopic scale to develop multiscale research. The molecular dynamics is a kind of microscopic research methods which is carry out the integral algorithm under different conditions to track molecular trajectories of research objects. Molecular dynamics was widely used in bitumen material design and microscopic mechanism research in molecular scale. The advantage is deeply explained the phenomenon and properties of asphalt system from the aspect of molecular motion. Therefore, many scholars study bitumen system by combining macroscopic test and molecular dynamics simulation, which will promote the development of asphalt materials. In this paper, molecular dynamics of bitumen system was comprehensively analyzed, general equilibrium steps of bitumen molecular dynamics model were constructed. The effectiveness of bitumen molecular dynamics model was verified by density, glass transition temperature, viscosity and solubility parameters. The nano-aggregation, self-repair, modification, aging, interfacial adhesion mechanisms of bitumen researchs based on molecular dynamics were comprehensively analyzed. The results show that the molecular dynamics method of bitumen materials was in early exploration stage, but the development potential is significant. Research on the dynamic behavior of bitumen components molecules by molecular dynamics method can reveal time-dependent molecular motion law that the normal test cannot be observed, predict bitumen macroscopic properties, target on bitumen molecular structures to put forward the improve measurement of bitumen road performance, promote the development of asphalt pavement multi-scale experimental simulation and lay the foundation for asphalt materials genome research.

Název v anglickém jazyce

Research Progress and Prospect of Molecular Dynamics of Asphalt Systems(Review)

Popis výsledku anglicky

With the rapid development of China road engineering, asphalt concrete has been widely used in road engineering. In recent years, the research on asphalt materials is not limited to macroscopic performance experiments, but also extended to mesoscopic and microscopic scale to develop multiscale research. The molecular dynamics is a kind of microscopic research methods which is carry out the integral algorithm under different conditions to track molecular trajectories of research objects. Molecular dynamics was widely used in bitumen material design and microscopic mechanism research in molecular scale. The advantage is deeply explained the phenomenon and properties of asphalt system from the aspect of molecular motion. Therefore, many scholars study bitumen system by combining macroscopic test and molecular dynamics simulation, which will promote the development of asphalt materials. In this paper, molecular dynamics of bitumen system was comprehensively analyzed, general equilibrium steps of bitumen molecular dynamics model were constructed. The effectiveness of bitumen molecular dynamics model was verified by density, glass transition temperature, viscosity and solubility parameters. The nano-aggregation, self-repair, modification, aging, interfacial adhesion mechanisms of bitumen researchs based on molecular dynamics were comprehensively analyzed. The results show that the molecular dynamics method of bitumen materials was in early exploration stage, but the development potential is significant. Research on the dynamic behavior of bitumen components molecules by molecular dynamics method can reveal time-dependent molecular motion law that the normal test cannot be observed, predict bitumen macroscopic properties, target on bitumen molecular structures to put forward the improve measurement of bitumen road performance, promote the development of asphalt pavement multi-scale experimental simulation and lay the foundation for asphalt materials genome research.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/8JCH1002" target="_blank" >8JCH1002: Sdružené rejuvenační účinky u zestárnutého asfaltového pojiva z asfaltového recyklátu s využitím aditiv z bio-odpadů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Cailiao daobao/Materials Reports

ISSN

1005-023X

e-ISSN

1005-023X

Svazek periodika

34

Číslo periodika v rámci svazku

19

Stát vydavatele periodika

CN - Čínská lidová republika

Počet stran výsledku

11

Strana od-do

19083-19093

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85096713321