|Table of Contents|

Gray-relation analysis of influencing factors on cooling rate of asphalt pavement(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2011年05期
Page:
18-22
Research Field:
Publishing date:
2011-10-20

Info

Title:
Gray-relation analysis of influencing factors on cooling rate of asphalt pavement
Author(s):
LI Bo1;  LIU Jian-xun2;  MA Jian-bing2;  DOU Hui1
1. School of Civil Engineering, Lanzhou Jiaotong University, Lanzhou 730070, Gansu, China; 2. Gansu Province Road and Bridge Construction Group Co Ltd, Lanzhou 730030, Gansu, China
Keywords:
road engineering;  asphalt mixture;  compaction temperature;  change law;  gray-relation degree
PACS:
U416.217
DOI:
-
Abstract:
Taking the asphalt pavement engineering of Tianshui—Dingxi in Gansu province as an example, the temperature of asphalt mixture at different time was measured, the cooling curve of asphalt mixture was obtained, the cooling characteristics of asphalt mixture were recorded. Based on those, the influencing factors on cooling rate of asphalt pavement was analyzed by the grey relation degree. The results show that the temperatures of asphalt mixture are sharply declined in initial time after paving, with the time increasing, the cooling rate of asphalt mixture decreases. The correlation effect order of the external factors on the cooling rate are pavement thickness, wind speed, air temperature, surface temperature and cloud underlying distribution. 1 tab, 1 fig, 14 refs.

References:

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Last Update: 2011-10-20