Development of Gyratory Stability Index to Evaluate Variation of RAP Content and Rutting Resistance of Asphalt Mixtures

Kassem, Emad; Bayomy, Fouad M. S.; Abu Saq, Mohammed; Muftah, Ahmed; Corley, Austin

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Development of Gyratory Stability Index to Evaluate Variation of RAP Content and Rutting Resistance of Asphalt Mixtures

2021-08-01
By Kassem, Emad ; Bayomy, Fouad M. S. ; Abu Saq, Mohammed

File Language:

English

Details

Creators:

Kassem, Emad ; Bayomy, Fouad M. S. ; Abu Saq, Mohammed ; Muftah, Ahmed ; Corley, Austin
Corporate Creators:

University of Idaho
Corporate Contributors:

Idaho. Transportation Department. Highway Construction and Operations, Contracting Services, Research Program ; United States. Department of Transportation. Federal Highway Administration
Subject/TRT Terms:
Publication/ Report Number:

FHWA-ID- 21-280, RP 280
Resource Type:

Tech Report
Geographical Coverage:

United States;Idaho
Edition:

Final Report 01/01/2019 - 08/31/2021
Corporate Publisher:

Idaho Transportation Department
Abstract:

ITD Research Report RP 175 developed an algorithm for determining a Gyratory Stability (GS) for asphalt mixtures based on the Servopac gyratory compactor. The GS describes the ability of asphalt mixtures to resist rutting, and it can be determined during the mix design stage using the gyratory compaction data. This study developed a modified algorithm for GS applicable to Pine Gyratory compactor model AFG2AS which is used by ITD districts. In addition, this study investigated the use of the GS, other gyratory compaction indices, and performance tests to detect the variations in mix composition. The researchers prepared and tested laboratory-mixed laboratory-compacted (LMLC) mixes and plant-mixed laboratory-compacted (PMLC) mixes obtained from new paving projects.
Format:

PDF
Funding:

UI-19-03
Download URL:

https://rosap.ntl.bts.gov/view/dot/68681/dot_68681_DS1.pdf
File Type:

[PDF - 7.23 MB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:765dfb22921f0c0222812f7c04c50743371485199ea3dc973b1f367593c87476c443b5d4da7d5ebf39eb8c214db422b034e68caf56720821bf48bf1f2100a681

File Language:

English

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