|Table of Contents|

Prediction analysis of recycled performance of aged asphalt(PDF)

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

Issue:
2009年03期
Page:
6-10
Research Field:
Publishing date:
2009-06-20

Info

Title:
Prediction analysis of recycled performance of aged asphalt
Author(s):
ZHENG Nan-xiang1; HOU Yue-qin2; JI Xiao-ping1; 3
1.Key Laboratory for Special Area Highway Engineering of Ministry of Education,Chang’an University,Xi’an 710064,Shaanxi,China;2.Department of Architecture Engineering,Qinghai University,Xining 810016,Qinghai,China;3.CCCC First Highway Consultants Co Ltd,Xi’an 710075,Shaanxi,China
Keywords:
road engineering;  recycled asphalt;  recycled effect;  prediction
PACS:
U414.4
DOI:
-
Abstract:
A composite law equation which describes the relationship between the performance of recycled asphalt with the performance of new and old asphalt (or agent) and their ratio is set up in this paper. Relying on the rebuilding engineering of the Sungang Road in Shenzhen reconstructed with the technology of central plant hot recycling, the recycled effects of different admixtures (90# asphalt, 70# asphalt, agent) are studied. The results of the research show that the regular of penetration, viscosity, softening point of the recycled asphalt can be described with the composite law equation; the penetration logarithm of recycled asphalt is directly proportional to the mass percent of agent (or new asphalt), and viscosity logarithm and softening point does the same; also, the recycling agents has better recycling ability than the new asphalt and the highgrade is better than the lowgrade asphalt. 6 tabs, 5 figs, 17 refs.

References:

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Last Update: 2009-06-20