|Table of Contents|

Optimum asphalt mixture content based on pavement performance(PDF)

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

Issue:
2009年02期
Page:
28-32
Research Field:
Publishing date:
2009-02-20

Info

Title:
Optimum asphalt mixture content based on pavement performance
Author(s):
HUANG BAO-Tao1; LI Jia-chun2; CUI E2; YU Jing-wei1
1.School of Transportation,Southeast University,Nanjing 210096,Jiangsu,China;2.Key Laboratory for Special Area Highway Engineering of Ministry of Education,Chang’an University,Xi’an 710064,Shaanxi,China
Keywords:
road engineering;  asphalt mixture;  road performance;  optimum content
PACS:
U414
DOI:
-
Abstract:
In order to ascertain optimum asphalt mixture content according to pavement performance, this paper established a gyratorstestmodel（GTM） to simulate construction condition and respectively conducted GTM forming experiment of the two kinds gradation of Sup13, Sup16. The optimum asphalt mixture content could be confirmed through fitting curvature radius catastrophe point of the gyratorsstabilityindex changing tendency followed the asphalt content variation curves. The optimal asphalt content of Sup13 is 4.8%, and the one of Sup16 is 4.9%. Acceleratedloadingfacility laboratory test and longtermpavementperformance observation prove that the pavement performance through GTM method to ascertain optimum asphalt binder content is superior to Marshall method. It is reasonable to ascertain optimum asphalt mixture content based on catastrophe point. There is a good correlation between the asphalt mixture content in catastrophe point and pavement performance. 7 tabs, 6 figs, 10 refs.

References:

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Last Update: 2009-02-20