Campus Units

Civil, Construction and Environmental Engineering

Document Type

Conference Proceeding

Conference

International Foundations Congress and Equipment Expo 2021

Publication Version

Accepted Manuscript

Link to Published Version

https://doi.org/10.1061/9780784483435.038

Publication Date

5-6-2021

First Page

390

Last Page

400

Research Focus Area

Transportation Engineering, Geotechnical/Materials Engineering

DOI

10.1061/9780784483435.038

Conference Title

International Foundations Congress and Equipment Expo 2021

Conference Date

May 10–14, 2021

City

Dallas, TX

Abstract

Aggregate durability is crucially important for performance of granular roadways. Therefore, proper laboratory durability evaluations of aggregates that will be used during construction and maintenance of granular roadways are very critical. Los-Angeles (LA) abrasion and Micro-Deval tests were two conventional methods that are used for laboratory during tests. However, it is very well known that these tests are not adequate to simulate the durability of aggregates under vehicle and compactor loads. The current study proposes to use the gyratory compaction method to evaluate the durability of aggregate materials. During gyratory tests, gradations, shear resistances, void ratios, and maximum dry unit weights of each material were monitored before and after tests. The results of this study showed that the fines content of the materials did not change significantly, while the gravel and sand contents of all materials changed considerably. It was also observed that the energy required to gain the optimum void ratio and dry unit weight were always higher than those required for the modified and standard Proctor tests energy levels. However, two out of three materials achieved 90% of the maximum shear strength at lower energy levels that were required for the modified Proctor test.

Comments

This is a manuscript of a proceeding published as Satvati, Sajjad, Bora Cetin, and Jeramy C. Ashlock. "Evaluation of Optimized Compaction Energy for Coarse Aggregates by Gyratory Compactor." In IFCEE 2021, pp. 390-400. This material may be found at DOI: 10.1061/9780784483435.038. Posted with permission.

Rights

This material may be downloaded for personal use only. Any other use requires prior permission of the American Society of Civil Engineers.

Copyright Owner

American Society of Civil Engineers

Language

en

File Format

application/pdf

Published Version

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