Implementation of Laboratory Conditioning and Testing Protocol to Evaluate Moisture Susceptibility of Asphalt Mixtures

Coleri, Erdem; Kumar, Vikas; Obaid, Ihsan Ali; Newton, Zachary Allen; Oregon State University. School of Civil and Construction Engineering

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Implementation of Laboratory Conditioning and Testing Protocol to Evaluate Moisture Susceptibility of Asphalt Mixtures

2023-03-01
By Coleri, Erdem ; Kumar, Vikas ; Obaid, Ihsan Ali ; ...

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Creators:

Coleri, Erdem ; Kumar, Vikas ; Obaid, Ihsan Ali ; Newton, Zachary Allen

Coleri, Erdem ; Kumar, Vikas ; Obaid, Ihsan Ali ; Newton, Zachary Allen Less -
Corporate Creators:

Oregon State University. School of Civil and Construction Engineering
Corporate Contributors:

Oregon. Dept. of Transportation. Research Section ; United States. Department of Transportation. Federal Highway Administration

Oregon. Dept. of Transportation. Research Section ; United States. Department of Transportation. Federal Highway Administration Less -
Subject/TRT Terms:

[+]

Antistrip Additives Asphalt Asphalt Mixtures Colorimeter CT-Index Electrical Resistivity Hamburg Wheel Tracking Test Implementation Laboratory Tests Moisture Content Moisture Susceptibility Stripping (Pavements) Tensile Strength Ratio Test Procedures Vacuum Saturation Warm Mix Paving Mixtures
Publication/ Report Number:

FHWA-OR-RD-23-08
Resource Type:

Tech Report
Geographical Coverage:

Oregon ; United States

Oregon ; United States Less -
Edition:

Final Report
Corporate Publisher:

Oregon. Dept. of Transportation. Research Section
Abstract:

Moisture damage in asphalt mixtures can cause early cracking and rutting failures due to the internal damage accumulated by the high internal pore pressures created at the aggregate-binder interface and/or within the binder phase by heavy traffic loads. Due to the high precipitation levels and frequent rain events, distresses originating from moisture damage are commonly observed on roadways in Oregon. ODOT has been mostly using hydrated lime to combat distresses related to moisture damage at the mixture level, while the effectiveness of new chemical anti-strips and warm-mix technologies has also started to be investigated. However, a reliable moisture conditioning method and moisture susceptibility test need to be developed and implemented for Oregon to determine the possible long-term impact of several new additive technologies on pavement longevity. Roadway geometry, asphalt layer density, construction of proper superelevation on the roadway for effective water removal, and functioning drainage facilities can be considered to be the other important factors that control moisture-related failures on roadways. Based on the comprehensive literature review and the results of the laboratory investigations, this study recommends the use of a colorimeter in conjunction with the current AASHTO T 283 (2014) method to determine the adhesion and cohesion-related moisture susceptibility. According to the laboratory test results, vacuum saturation is able to create significant moisture damage in the asphalt microstructure, and no other conditioning method needs to be adapted to replace the vacuum saturation method. Developed tools and test procedures are expected to help ODOT identify the benefits of recent additive technologies that are being developed to combat moisture damage of asphalt mixtures.
Format:

PDF
Collection(s):

US Transportation Collection
Main Document Checksum:

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urn:sha256:f1cb512cb82df100ae1021c78e61d1c46d5b9124b4071b90a74da4097e194e19
Download URL:

https://rosap.ntl.bts.gov/view/dot/66795/dot_66795_DS1.pdf
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Implementation of Laboratory Conditioning and Testing Protocol to Evaluate Moisture Susceptibility of Asphalt Mixtures

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