Characteristics of Jointed Plain Concrete Pavement (JPCP) Built-in Temperature in Different Climate Conditions

Abstract:

To understand the characteristics of early-age built-in temperature in JPCP, the actual data of construction climate conditions of typical regions in China were investigated. Based on the application of early-age JPCP temperature numerical simulation program, built-in temperature characteristics of early-age pavement in typical regions was analyzed. The results show that the pavement constructed in different climate conditions produce difference characteristics of early-age built-in temperature due to geographical distinction. Positive built-in temperature difference of JPCP is larger in the regions which have difference in temperature between day and night or higher solar radiation intensity, while the negative built-in temperature difference isn’t influenced obviously by different regions and paving conditions. The maximum positive (negative) built-in temperature difference generally appears in pavement constructed in hot summer. The air temperature is the major factor affecting built-in basic temperature. The higher air temperature, results in the higher built-in basic temperature (temperature in slab bottom) is.

• Periodical: Advanced Materials Research (Volume 723)
• Pages: 960-967
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.723.960
• Online since: August 2013
• Authors: Chang Bin Hu, Zeng Hua Sun, Li Juan Wang
• Keywords: Built-In Basic Temperature, Built-in Temperature Difference, Climate Conditions, Geography, JPCP

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