Effect of water content on the resilient behavior of non standard unbound granular materials

被引：23

作者：

Coronado, Octavio ^{[1
]}

Caicedo, Bernardo ^{[2
]}

Taibi, Said ^{[3
]}

Correia, Antonio Gomes ^{[4
]}

Souli, Hanene ^{[5
]}

Fleureau, Jean-Marie ^{[6
]}

机构：

[1] Univ Nacl Columbia, Dept Civil & Agr Engn, Bogota, Colombia

[2] Univ Los Andes, Dept Civil & Environm Engn, Cr1 18A-70, Bogota, Colombia

[3] Le Havre Univ, CNRS, UMR 6294, Lab Ondes & Milieux Complexes, F-76058 Le Havre, France

[4] Univ Minho, Ctr Geotecnia, Campus Azurem, P-4800058 Guimaraes, Portugal

[5] Ecole Ingenieurs St Etienne, CNRS, UMR 5513, Lab Tribol & Dynam Syst, F-42023 St Etienne, France

[6] Ecole Cent Paris, CNRS, UMR 8579, Lab Mecan, F-92290 Chatenay Malabry, France

来源：

TRANSPORTATION GEOTECHNICS | 2016年 / 7卷

关键词：

Suction; Unsaturated unbound materials; Resilient modulus; Non-standard road materials; Effective stress analysis; MATRIC SUCTION; SOIL SUCTION; MODULUS;

D O I：

10.1016/j.trgeo.2016.04.004

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The results of an experimental study on non-standard road granular materials are presented, including small strain precision triaxial tests under cyclic loading and wetting tests. The materials have attrition coefficients, plasticity index, and fines content above the recommended limits. The influence of each parameter and the influence of the water content were studied. This work emphasizes the role of suction in the interpretation of the results, and the possibility to use an effective stress approach to express the changes in normalized resilient modulus as a function of a single parameter representing both total stresses and suction. Among the three effective stress definitions tested, those of Terzaghi and Taibi were shown to yield satisfactory results. This approach noticeably simplifies the characterization of UGM specimens at different water contents in the perspective of a more rational design of pavement layers. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：29 / 39

页数：11

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