Critical Evaluation of Parameters Affecting Resilient Modulus Tests on Subgrades (Appendices and Supporting Data)

Feliberti, Manuel; Nazarian, Soheil; Srinivasan, Thejaraj

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Critical Evaluation of Parameters Affecting Resilient Modulus Tests on Subgrades (Appendices and Supporting Data)

1992-05-01
By Feliberti, Manuel ; Nazarian, Soheil ; Srinivasan, Thejaraj

File Language:

English

Details

Creators:

Feliberti, Manuel ; Nazarian, Soheil ; Srinivasan, Thejaraj
Corporate Creators:

University of Texas at El Paso. Center for Geotechnical and Highway Materials Research
Corporate Contributors:

Texas Department of Transportation
Subject/TRT Terms:

Clay Cohesive Soils Granular Soils Mathematical Models Modulus Of Resilience Sand Subgrade (Pavements) Test Procedures
Publication/ Report Number:

1177-2, Volume 2
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

Volume 2 of 2
Corporate Publisher:

Texas. Department of Transportation
Abstract:

This report contains the appendices and supporting data for the project report. The project report contains a critical evaluation of the resilient modulus testing procedure based on more than 200 tests. The state-of-the-art for obtaining and interpreting resilient modulus data is reviewed. The initial testing procedures proposed by the American Association of State Highway and Transportation Officials (AASHTO) and modified by the Strategic Highway Research Program (SHRP) were evaluated. A new testing procedure for granular materials is proposed and evaluated. It was found that the AASHTO procedure for resilient modulus testing is inadequate. The SHRP protocol for testing cohesive soils is adequate. However, the SHRP protocol for testing granular soils induces sample disturbance during the first level of confining pressure. The new procedure proposed here minimizes sample disturbances and degradation. The existing constitutive models were studied also. It was found that these models may not be adequate for all sands and clays. Two alternative models were then proposed. These models are more appropriate for describing the behavior of the materials tested. Finally, simplified relationships for determining the constitutive models as a function of clay content and water content were proposed.
Format:

PDF
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:0079a54c843a6e341ede04393a71704cffa3df631cf7e05fba4eddd5985d5087cc78796ab1c6565b2c2b94213cf672a33c6be15cdd3a4f595b2cdd5b3c9cc35b
Download URL:

https://rosap.ntl.bts.gov/view/dot/84934/dot_84934_DS1.pdf
File Type:

[PDF - 2.13 MB ]

File Language:

English

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