Results 221 to 230 of about 5,268 (261)

Resilient Modulus Testing for Pavement Components

2003
Description Nineteen peer-reviewed papers address the latest issues affecting the resilient modulus test and use of the test results. Resilient modulus indicates the stiffness of a soil under controlled confinement conditions and repeated loading.
GN Durham, WL DeGroff, WA Marr
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Construction of Dynamic Modulus Master Curves with Resilient Modulus and Creep Test Data

Transportation Research Record: Journal of the Transportation Research Board, 2012
For the past few decades, the stiffness of materials used for roadway design and construction has been commonly characterized by the resilient modulus, defined as the ratio of the applied stress to the recoverable strain. However, the resilient modulus is not a fundamental material property of a viscoelastic material.
Hyung Suk Lee, Sungho Kim, Bouzid Choubane, Patrick Upshaw   +3 more
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Resilient Modulus Models for Compacted Cohesive Soils

Transportation Research Record: Journal of the Transportation Research Board, 2004
Three-parameter models have been used to represent the effects of confining and shear stresses on the value of resilient modulus. A new generation of such models allows better characterization of the variation of resilient modulus at low deviator stress.
Phillip S. K. Ooi, A. Ricardo Archilla, Kealohi G. Sandefur   +2 more
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Weighting Factor for Seasonal Subgrade Resilient Modulus

Transportation Research Record: Journal of the Transportation Research Board, 1998
Subgrade resilient modulus is highly dependent on water content, which can vary significantly with a number of seasonal environmental factors. Because the determination of seasonal resilient modulus is cumbersome, it is difficult to include environmental factors in pavement design.
Yun Guan, Eric C. Drumm, N. Mike Jackson
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Grading and frequency dependence of the resilient modulus of ballast

Géotechnique Letters, 2018
The stress–strain and degradation response of railway ballast to imparted train loading is often largely dominated by intrinsic properties, including particle size and particle-size distribution (PSD). To investigate these aspects, a series of large-scale triaxial cyclic tests were conducted on railway ballast.
Y. Sun, S. Nimbalkar, C. Chen
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Resilient modulus properties of granular highway materials

Canadian Journal of Civil Engineering, 2009
An essential component of the new Guide for mechanistic–empirical design of new and rehabilitated pavement structures for the design of flexible pavement structures is the use of resilient modulus for base / subbase materials and subgrade soils. This study reports on resilient modulus (Mr) test results for unbound pavement materials that were obtained
Dieter Stolle, Peijun Guo, Ying Liu
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Analysis on the seasonal effect of subgrade resilient modulus

2010 International Conference on Mechanic Automation and Control Engineering, 2010
The paper first analyzes the seasonal variation law of subgrade resilient modulus and water content, and then summarizes the common quantitative adjustment methods, calculation of the equivalence of resilient modulus based upon damage equivalence, for resilient modulus of subgrade in the process of season alterations.
null Li Cong, null Ling Jianming, null Guan Shengfei   +2 more
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Subgrade Resilient Modulus Correction for Saturation Effects

Journal of Geotechnical and Geoenvironmental Engineering, 1997
Mechanistic design methods for flexible pavement require the specification of the resilient modulus Mr for each soil subgrade encountered in the pavement project.
Eric C. Drumm, Jason S. Reeves, Mark R. Madgett, William D. Trolinger   +3 more
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Resilient Modulus for Fine‐Grained Subgrade Soils

Journal of Geotechnical Engineering, 1994
A method has been developed for the estimation of resilient modulus of compacted fine-grained subgrade soils. The method takes into account the influence of soil physical state, stress state, and soil type. The effect of soil physical state is quantified by combinations of two equations relating resilient modulus to moisture content.
Dingqing Li, Ernest T. Selig
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Repeatability of the Resilient Modulus Test Procedure

2003
Through the work of the Strategic Highway Research Program (SHRP, 1987–1992) and the Federal Highway Administration (FHWA, 1992-present), the government has provided financial and technical assistance to develop and improve a laboratory test method to determine the resilient modulus properties of unbound materials.
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