Development of a Guideline for the Selection of Tack Coats in South Dakota [Research Brief]

Ghabchi, Rouzbeh; Dharmarathna, Prashan Chammika

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Development of a Guideline for the Selection of Tack Coats in South Dakota [Research Brief]

2022-07-01
By Ghabchi, Rouzbeh ; Dharmarathna, Prashan Chammika

File Language:

English

Details

Creators:

Ghabchi, Rouzbeh ; Dharmarathna, Prashan Chammika
Corporate Creators:

South Dakota State University
Corporate Contributors:

Mountain-Plains Consortium ; United States. Department of Transportation. University Transportation Centers (UTC) Program ; United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology
Subject/TRT Terms:
Publication/ Report Number:

MPC 22-468
Resource Type:

Brief
Geographical Coverage:

South Dakota ; United States
Edition:

Research Brief
Corporate Publisher:

Mountain-Plains Consortium
Abstract:

Pavement failures have been reported in Upper Great Plains and Intermountain West regions, and particularly in South Dakota, with a primary cause of insufficient or excessive tack coat application and moisture penetration in the interface of two layers. Researchers have addressed these issues by helping develop a database to assist pavement engineers select the appropriate tack coat type and application rate. Tack coat binder is much softer shortly after construction compared with after aging during its in-service life, which raises the likelihood of early-age interlayer shear failure. This study was undertaken to evaluate the effects of tack coat type (CRS-2P, CSS-1h, and SS-h); application rate (0, 0.140, 0.281, and 0.702 L/m2); surface texture (grooved Portland cement concrete PCC and new, aged and worn, and milled hot-mix asphalt HMA); and freeze–thaw (F-T) cycles on early-age interlayer shear strength (ISS) of laboratory-compacted samples.
Format:

PDF
Funding:

MPC-522
Download URL:

https://rosap.ntl.bts.gov/view/dot/67952/dot_67952_DS1.pdf
File Type:

[PDF - 464.92 KB]
Collection(s):

University Transportation Centers
Main Document Checksum:

urn:sha256:e6ecae3a2d3a0fe1ab195daba24a483a02485b5448ec867506ddfe83bcb6a746

File Language:

English

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