Temperature Characteristics of Porous Portland Cement Concrete during the Hot Summer Session
Joint Authors
Zou, Xiaolong
Hu, Liqun
Li, Yangyang
Du, Shaowen
Liu, Zhuangzhuang
Huang, Hao
Source
Advances in Materials Science and Engineering
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-02-09
Country of Publication
Egypt
No. of Pages
10
Abstract EN
Pavement heats the near-surface air and affects the thermal comfort of the human body in hot summer.
Because of a large amount of connected porosity of porous Portland cement concrete (PPCC), the thermal parameters of PPCC are much different from those of traditional Portland cement concrete (PCC).
The temperature change characteristics of PPCC and the effects on surrounding environment are also different.
A continuous 48-hour log of temperature of a PCC and five kinds of PPCC with different porosity were recorded in the open air in the hot summer.
The air temperatures at different heights above concrete specimens were tested using self-made enclosed boxes to analyze the characteristics of near-surface air temperature.
The output heat flux of different concrete specimens was calculated.
The results show that the PPCC has higher temperature in the daytime and lower temperature in the nighttime and larger temperature gradient than the PCC.
The air temperature above PPCC is lower than that of PCC after solar radiation going to zero at night.
The total output heat flux of PPCC is slightly smaller in the daytime and significantly smaller at night than that of PCC.
The results of tests and calculations indicate that PPCC contributes to the mitigation of heating effect of pavement on the near-surface air.
American Psychological Association (APA)
Hu, Liqun& Li, Yangyang& Zou, Xiaolong& Du, Shaowen& Liu, Zhuangzhuang& Huang, Hao. 2017. Temperature Characteristics of Porous Portland Cement Concrete during the Hot Summer Session. Advances in Materials Science and Engineering،Vol. 2017, no. 2017, pp.1-10.
https://search.emarefa.net/detail/BIM-1123654
Modern Language Association (MLA)
Hu, Liqun…[et al.]. Temperature Characteristics of Porous Portland Cement Concrete during the Hot Summer Session. Advances in Materials Science and Engineering No. 2017 (2017), pp.1-10.
https://search.emarefa.net/detail/BIM-1123654
American Medical Association (AMA)
Hu, Liqun& Li, Yangyang& Zou, Xiaolong& Du, Shaowen& Liu, Zhuangzhuang& Huang, Hao. Temperature Characteristics of Porous Portland Cement Concrete during the Hot Summer Session. Advances in Materials Science and Engineering. 2017. Vol. 2017, no. 2017, pp.1-10.
https://search.emarefa.net/detail/BIM-1123654
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1123654