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Temperature Spatial and Temporal Distributions of Pavements with Various Paving Materials
The mechanical performances and functionalities of pavements are significantly dependent on their service temperatures. It is of great importance to understand the temperature distributions of pavements under various environmental conditions and the influence mechanisms caused by the environmental media, and accurate and effective estimations of the pavement temperature field in both spatial and temporal dimensions is desired to better predict pavement responses and for a proper pavement design. However, as well known, the temperature distribution in a pavement structure is greatly affected by the paving material and strongly correlated environmental factors, and it is hard to be measured in the field effectively. In this study, numerical simulations based on finite element analysis (FEA) were performed to investigate the temperature distributions of pavements with various paving materials spatially and temporally, and the influences caused by typical environmental media on actual pavements were also discussed based on the simulation results. Four commonly used paving materials, traditional Portland cement concrete (PCC), Portland cement porous concrete (PCPC), dense-graded asphalt concrete (AC), and open-graded friction course (OGFC), were considered for the study. The intensity of solar radiation during daytime and night and wind speed were two environmental factors take into consideration as the environmental media that affect the temperature distributions of the pavement. On the other hand, a series laboratory simulation tests were conducted on the specimens made by various paving materials, and the results from the numerical analysis were compared to those from the laboratory tests in order to verify the effectiveness of the numerical model established in the study. Furthermore, the mechanisms of the environmental media impacting the temperature distributions of the pavements were explored.
Temperature Spatial and Temporal Distributions of Pavements with Various Paving Materials
The mechanical performances and functionalities of pavements are significantly dependent on their service temperatures. It is of great importance to understand the temperature distributions of pavements under various environmental conditions and the influence mechanisms caused by the environmental media, and accurate and effective estimations of the pavement temperature field in both spatial and temporal dimensions is desired to better predict pavement responses and for a proper pavement design. However, as well known, the temperature distribution in a pavement structure is greatly affected by the paving material and strongly correlated environmental factors, and it is hard to be measured in the field effectively. In this study, numerical simulations based on finite element analysis (FEA) were performed to investigate the temperature distributions of pavements with various paving materials spatially and temporally, and the influences caused by typical environmental media on actual pavements were also discussed based on the simulation results. Four commonly used paving materials, traditional Portland cement concrete (PCC), Portland cement porous concrete (PCPC), dense-graded asphalt concrete (AC), and open-graded friction course (OGFC), were considered for the study. The intensity of solar radiation during daytime and night and wind speed were two environmental factors take into consideration as the environmental media that affect the temperature distributions of the pavement. On the other hand, a series laboratory simulation tests were conducted on the specimens made by various paving materials, and the results from the numerical analysis were compared to those from the laboratory tests in order to verify the effectiveness of the numerical model established in the study. Furthermore, the mechanisms of the environmental media impacting the temperature distributions of the pavements were explored.
Temperature Spatial and Temporal Distributions of Pavements with Various Paving Materials
Sustain. Civil Infrastruct.
Kim, S. Sonny (Herausgeber:in) / Moghal, Arif Ali Baig (Herausgeber:in) / Yao, Jia-liang (Herausgeber:in) / Wu, Hao (Autor:in) / Zhai, Zhichao (Autor:in) / Song, Weimin (Autor:in) / Bai, Shu (Autor:in)
Civil Infrastructures Confronting Severe Weathers and Climate Changes Conference ; 2021 ; NanChang, China
14.07.2021
12 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Engineering Index Backfile | 1890
Paving brick and brick pavements
Engineering Index Backfile | 1901
|Brick pavements and paving brick
Engineering Index Backfile | 1899
|Paving brick and brick pavements
Engineering Index Backfile | 1900
|