|Table of Contents|

Design of synchronous under-seal based on anti-shear strength between interlayers(PDF)

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

Issue:
2011年02期
Page:
21-24
Research Field:
Publishing date:
2011-04-30

Info

Title:
Design of synchronous under-seal based on anti-shear strength between interlayers
Author(s):
ZHOU Ze-hong;  ZHENG Nan-xiang;  JI Xiao-ping
Key Laboratory for Special Area Highway Engineering of Ministry of Education, Chang'an University, Xi'an 710064, Shaanxi, China
Keywords:
road engineering;  synchronous seal;  design method;  anti-shear strength between interlayers
PACS:
U416.14
DOI:
-
Abstract:
The mechanistic-empirical design method of synchronous under-seal was studied based on its performance requirements. In this method the anti-shear strength between interlayers was taken as design index. The first step was to estimate asphalt content with McLeod empirical design method, and then 5 kinds of specimens were formed with different asphalt contents and the estimated content set as the middle value, then the shear strength tests of the 5 kinds of specimens were carried out. Finally, the asphalt content with the maximum shear strength was set as the optimum content. At the same time, the shear test, rutting test and seepage test were carried out to the two kinds of composite specimens: with only prime coat layer and with prime coat +synchronous under-seal. The results show that: the mechanistic-empirical design method can reduce the more asphalt content than the McLeod's, reduced by about 0.261 kg/m2; the synchronous under-seal can improve the interface resistance shear strength and dynamic stability, raised about 141% and 27.6% compared with the prime coat's; the impermeability of composite specimens can be significantly improved by using synchronous under-seal. 4 tabs, 3 figs, 8 refs.

References:

[1] 李 兵.同步碎石应力吸收层技术研究[D].西安:长安大学,2008.
[2]李祖仲,陈拴发,张登良,等.应力吸收层沥青混合料的路用特性[J].长安大学学报:自然科学版,2008,28(2):5-8. LI Zu-zhong,CHEN Shuan-fa,ZHANG Deng-liang,et al.Road performance of stress absorbing layers in asphalt mixture[J].Journal of Chaug'an University:Natural Science Edition,2008,28(2):5-8.
[3]王 艳,倪富健,马 翔.不同基层开裂状态的沥青路面应力对比[J].交通运输工程学报,2008,8(6):34-39. WANG Yan,NI Fu-jian,MA Xiang.Stress comparison of asphalt pavements with different base crack states[J].Journal of Traffic and Transportation Engineering,2008,8(6):34-39.
[4]谢祥根.同步碎石封层技术和SBS改性沥青防水层的应用研究[J].湖南交通科技,2007,33(1):10-14,44. XIE Xiang-geng.Research on the application of synchronous pavement surface dressing and SBS modified asphalt waterproof layer[J].Hunan Communication Science and Technology,2007,33(1):10-14,44.
[5]覃 峰,包惠明,董开亮.同步碎石应力吸收层特性研究[J].中外公路,2007,27(5):202-205. QIN Feng,BAO Hui-ming,DONG Kai-liang.Study on the properties of synchronous gravel stress absorbed layer[J].Journal of China & Foreign Highway,2007,27(5):202-205.
[6]王朝辉,王选仓.基于沥青加铺层结构疲劳寿命的夹层位置确定[J].中国公路学报,2008,28(1):29-34,58. WANG Chao-hui,WANG Xuan-cang.Interlayer position ascertainment based on fatigue life of asphalt overlay structure[J].China Journal of Highway and Transport,2008,28(1):29-34,58.
[7]张俊豪.同步碎石封层技术在桥面防水结构层中的应用[J].山西交通科技,2008(2):65-66. ZHANG Jun-hao.The application of synchronous macadam seal technique to water proof structure layer[J].Shanxi Science & Technology of Communications,2008(2):65-66.
[8]邹 剑,蒋功雪.同步碎石封层技术在沥青路面预防性养护中的应用[J].湖南交通科技,2007,33(2):33-35. ZOU Jian,JIANG Gong-xue.The application of synchronous pavement surface dressing technology in asphalt pavement[J].Hunan Communication Science and Technology,2007,33(2):33-35.

Memo

Memo:
-
Last Update: 2011-04-30