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A new approach for developing resilient modulus master surface to characterize granular pavement materials and subgrade soils.
- Source :
-
Construction & Building Materials . Jan2019, Vol. 194, p372-385. 14p. - Publication Year :
- 2019
-
Abstract
- Highlights • New resilient modulus master surface approach was developed. • The approach characterizes both granular pavement materials and subgrade soils. • The approach considers the effect of stress state and moisture content levels. • The proposed master surface-2018 model produces accurate predictions. Abstract Resilient modulus is a fundamental material property used for pavement materials characterization. A new methodology for predicting the resilient modulus of unbound/stabilized pavement materials and subgrade soils is developed based on a master surface function at a reference water content. The resilient modulus measurements at different levels of water content are shifted horizontally with respect to the octahedral shear stress, and bulk normal stress; simultaneously. A total of 2754 resilient modulus laboratory measurements, obtained from literature, for five granular base materials, four subgrade soils, one recycled crushed concrete material, and three cement-treated stabilized fine materials are used to evaluate the proposed Master Surface model for the resilient modulus prediction as a function of the stress state, and water content. The proposed predictive methodology is compared to well-known models from literature. The comparison of the investigated models exhibits that the Master Surface model has the most precise and unbiased predictions after numerically optimizing the resilient modulus data. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09500618
- Volume :
- 194
- Database :
- Academic Search Index
- Journal :
- Construction & Building Materials
- Publication Type :
- Academic Journal
- Accession number :
- 133094016
- Full Text :
- https://doi.org/10.1016/j.conbuildmat.2018.10.212