DSpace
 

Researchspace >
General science, engineering & technology >
General science, engineering & technology >
General science, engineering & technology >

Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/4412

Title: Resilient behavior characterization of geomaterials for pavement design
Authors: Anochie-Boateng, J
Tutumluer, E
Apeagyei, A
Ochieng, G
Keywords: Resilient modulus
Repeated load test
Subgrade soils
Pavements
Geomaterials
Asphalt pavements
ISAP Nagoya 2010
Issue Date: Aug-2010
Citation: Anochie-Boateng, J, Tutumluer, E, Apeagyei, A and Ochieng, G. 2010. Resilient behavior characterization of geomaterials for pavement design. ISAP Nagoya 2010, 11th International Conference on Asphalt Pavements, Nagoya, Japan, August 1-6, 2010, pp 10
Abstract: Resilient modulus (MR) test and the California Bearing Ratio (CBR) test have been the two most common tests for laboratory characterization of geomaterials, i.e., fine-grained subgrade soils and unbound aggregate materials for road and airfield pavements analysis. However, there is a major difference between the two tests in terms of materials properties. Whereas CBR test evaluates the potential strength of geomaterials, resilient modulus is a stiffness property obtained under repeated/cyclic load test. The determination of resilient modulus requires sophisticated equipment and skilled personnel for laboratory and field testing. Therefore, some agencies continue to use CBR to estimate resilient modulus for flexible pavement design. In this paper, two well-known MR-CBR empirical models were investigated for predicting resilient modulus of fourteen subgrade soils for the analysis and design of a new runway at a commercial airport in the United States. Repeated load and CBR tests were conducted in the laboratory on the subgrade samples to obtain MR and CBR data to develop the empirical models. The results suggest that constitutive models obtained directly from laboratory test data would be more appropriate to characterize the resilient behavior of subgrade soils a high reliability design of runways than empirical correlation models
Description: ISAP Nagoya 2010, 11th International Conference on Asphalt Pavements, Nagoya, Japan, August 1-6, 2010
URI: http://hdl.handle.net/10204/4412
Appears in Collections:Building science and technology
Infrastructure engineering
Infrastructure systems and operations
General science, engineering & technology

Files in This Item:

File Description SizeFormat
Anochie-Boateng_2010.pdf240.97 kBAdobe PDFView/Open
View Statistics

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback