|Table of Contents|

Rutting equivalent axle-load conversion based on ALF rutting test(PDF)

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

Issue:
2013年01期
Page:
11-15
Research Field:
道路工程
Publishing date:

Info

Title:
Rutting equivalent axle-load conversion based on ALF rutting test
Author(s):
JI Xiao-ping1;  ZHENG Nan-xiang1;  NIU Si-sheng2;  HOU Yue-qin1
1.Key Laboratory for Special Area Highway Engineering of the Ministry of Education, Chang'an University, Xi'an 710064, Shaanxi, China; 2. Road Investment Co Ltd of Gansu Road and Bridge Group, Lanzhou 730030, Gansu, China
Keywords:
road engineering;  asphalt pavement;  ALF;  rutting equivalent;  axle-load conversion
PACS:
U416.217
DOI:
-
Abstract:
To determine the rutting equivalent axle-load conversion coefficient of asphalt pavement, a full-scale ALF rutting test on three types of asphalt pavement structures was carried out. The method of axle-load conversion based on the rutting equivalent principle was proposed. The relationship of rutting depth and axle-load number was obtained based on the rutting data of three kinds of pavements under three different conditions, and the rutting equivalent coefficient and rutting equivalent axle-load conversion coefficients were further calculated. The results show that the rutting equivalent axle-load coefficients of three types of pavement structures are 4.56,4.90 and 2.71 respectively. Modified asphalt mixture has a smaller axle-load conversion coefficient and a lower load sensitivity than asphalt mixture. The recommended rutting equivalent axle-load coefficient of modified asphalt mixture and asphalt mixture should be 2.7 and 4.9 respectively. 3 tabs, 3 figs, 10 refs.

References:

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Last Update: 2013-02-20