01551142

Component

https://doi.org/10.3141/2510-04

The research objectives were to establish a resilient modulus test result database and to develop correlations for estimating the resilient modulus of Wisconsin fine-grained soils from basic soil properties. Laboratory testing was conducted on representative Wisconsin fine-grained soils to evaluate their physical and compaction properties. The resilient modulus of each investigated soil was determined from the repeated load triaxial (RLT) test according to the AASHTO T307 procedure. The laboratory testing program produced a high-quality, consistent database of test results. The resilient modulus constitutive equation of mechanistic–empirical pavement design was selected to estimate the resilient modulus of Wisconsin fine-grained soils. Material parameters of the constitutive equation were evaluated from RLT test results. Then statistical analysis was performed to develop correlations between basic soil properties and constitutive model parameters. The resilient modulus values obtained from RLT tests and estimated from the constitutive equations were in agreement. The correlations developed could estimate the resilient modulus of compacted subgrade soils with reasonable accuracy. The proposed material parameter correlations could be used to estimate the resilient modulus of Wisconsin fine-grained soils as Level 2 input parameters. Statistical analysis of the test results also provided resilient modulus values for the investigated soil types that can be used as Level 3 input parameters.

01587391

15-5845

English

pp 24–35

2015

Transportation Research Record: Journal of the Transportation Research Board

9780309369329

Print

Figures (6) ; References (8) ; Tables (4)

Fine grained soils; Mechanistic-empirical pavement design; Modulus of resilience; Repeated loads; Soil tests; Subgrade materials

Wisconsin

Design; Geotechnology; Materials; Pavements; I22: Design of Pavements, Railways and Guideways; I42: Soil Mechanics

PRP, TRIS, TRB, ATRI

Dec 30 2014 1:57PM

• Assessment of Retaining Wall Inventories for Geotechnical Asset Management
• Climate Projections for Transportation Infrastructure Planning, Operations and Maintenance, and Design
• Effects of Particle Size and Fines Content on Thermal Conductivity of Quartz Sands
• Frost Depth: General Prediction Model
• Historical Analysis of Tunnel Approach Displacements with Satellite Remote Sensing
• Incorporating the Effect of Moisture Variation on Resilient Modulus for Unsaturated Fine-Grained Subgrade Soils
• Model for Seasonal Variation of Resilient Modulus in Silty Sand Subgrade Soil: Evaluation with Falling Weight Deflectometer
• Modified Unconfined Compression Testing System to Characterize Stress–Strain Behavior of Unsaturated Soils at Low Confining Stresses
• Rock Slopes Asset Management: Selecting the Optimal Three-Dimensional Remote Sensing Technology
• Seasonal Effects on a Low-Volume Road Flexible Pavement