Experimental investigation of tack coat fatigue performance: Towards an improved lifetime assessment of pavement structure interfaces

被引：89

作者：

Diakhate, M. ^{[1
]}

Millien, A. ^{[1
]}

Petit, C. ^{[1
]}

Phelipot-Mardele, A. ^{[2
]}

Pouteau, B. ^{[3
]}

机构：

[1] Univ Limoges, GEMH GCD, F-19300 Egletons, France

[2] Univ Europeenne Bretagne, LGCGM, IUT Rennes, F-35704 Rennes, France

[3] Eurovia, Ctr Rech Merignac, F-33703 Merignac, France

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2011年 / 25卷 / 02期

关键词：

Pavement durability; Interface; Tack coat; Bonding fatigue performance; Double shear test; Lifetime; ASPHALT PAVEMENTS; LAYERS;

D O I：

10.1016/j.conbuildmat.2010.06.064

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper focuses on investigating the bonding fatigue performance between two asphalt concrete (AC) layers. For purposes of this experimental campaign, a customised double shear testing device was designed. Two interface conditions have been analysed herein: with and without a tack coat. Moreover, the corresponding fatigue behaviour has been analysed at two temperatures: 10 degrees C and 20 degrees C. As expected, the absence of a tack coat leads to a decrease in bonding fatigue performance. Since fatigue tests are highly time-consuming, a method that allows predicting the conventional interface fatigue law from accelerated shear fatigue tests has been proposed. Other novel findings on interface fatigue behaviour will also be discussed. In addition to these fatigue results, an interface failure model is proposed to evaluate the interface lifetime. Incorporating interface fatigue performance into pavement analysis proves to be a key parameter in describing in situ pavement conditions and assessing pavement durability. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：1123 / 1133

页数：11

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