Experimental Investigation of the Mechanical Behaviour of Interfaces Between Pavement Layers

被引：1
|
作者：
Attia, Thomas [1 ]
Di Benedetto, Herve [1 ]
Sauzeat, Cedric [1 ]
Pouget, Simon [2 ]
机构：
[1] Univ Lyon, ENTPE, LTDS, CNRS 5513, Vaulx En Velin, Auvergne Rhone, France
[2] Eiffage Infrastruct, Res & Innovat Dept, Vaulx En Velin, Auvergne Rhone, France
来源：
PROCEEDINGS OF GEOSHANGHAI 2018 INTERNATIONAL CONFERENCE: TRANSPORTATION GEOTECHNICS AND PAVEMENT ENGINEERING | 2018年
关键词：
Pavement; Interface behaviour; Bituminous mixture; Shear; Digital Image Correlation (DIC); Hollow Cylinder Apparatus (HCA); Experimental results; SHEAR; STIFFNESS;
D O I：
10.1007/978-981-13-0011-0_37
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Pavement structure lifetime can be dramatically reduced in case of poor bonding between layers. Study of interfaces between pavement layers is essential to improve pavement durability. An innovative and new experiment named 2T3C Hollow Cylinder Apparatus (2T3C HCA) has been implemented to characterize interface performances. In this test, combined compressive (or tensile) stress and shear stress can be independently applied to the interface. The tested samples are hollow cylinder samples (12 cm height, 17.5 cm external diameter and 12.5 cm internal diameter) constituted of two bituminous pavement layers separated by an interface made with a tack coat. Samples representing a pavement structure are made in laboratory using the French wheel compactor. Digital Image Correlation (DIC) is used to obtain displacements in the three dimensions on the surface of samples. It makes it possible to locate the interface and observe its deformation. In this paper the 2T3C HCA device is presented and first results on bituminous mixtures behaviour and on interface behaviour are presented.
引用
收藏
页码：344 / 352
页数：9
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