The Use of Thin Asphalt Overlays for Pavement Preservation [techbrief]

United States. Federal Highway Administration. Office of Asset Management, Pavements and Construction

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The Use of Thin Asphalt Overlays for Pavement Preservation [techbrief]

[PDF-579.01 KB]

English

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Details:

Corporate Creators:

United States. Federal Highway Administration. Office of Asset Management, Pavements and Construction
Contributors:

Ahlstrom, Gina ; Petros, Katherine

Ahlstrom, Gina ; Petros, Katherine Less -
Subject/TRT Terms:

[+]

Asphalt Overlay Asphalt Pavements Overlays (Pavements) Pavement Maintenance Pavement Preservation Preservation
Publication/ Report Number:

FHWA-HIF-19-053
Resource Type:

Brief
Geographical Coverage:

United States
Corporate Publisher:

United States. Federal Highway Administration. Office of Asset Management, Pavements, and Construction
Abstract:

This Technical Brief provides an overview of thin asphalt overlays placed as a pavement preservation treatment. This document defines thin asphalt overlays as dense graded mixtures placed less than 1½ inches in thickness. Gap-graded and open-graded mixtures may be specifically designed for thin placement but they are considered specialty mixtures and are not discussed in this document. Thin asphalt overlays placed for pavement preservation are functional overlays to extend the service life of the pavement and are not intended to add structural capacity. The key benefits of a thin asphalt overlay are improved ride, corrected rutting, impermeability, and reduced noise. Project selection, mix design criteria, construction considerations and expected performance are presented. Since some aspects of the technology are still evolving; best practices and areas of caution are included.
Format:

PDF
Collection(s):

Federal Highway Administration
Main Document Checksum:

[+]

urn:sha256:816dd0a36dd55a4237928f79a0718c294d8c8bf47ecf5b128cf191263e5266f6
Download URL:

https://rosap.ntl.bts.gov/view/dot/42930/dot_42930_DS1.pdf
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The Use of Thin Asphalt Overlays for Pavement Preservation [techbrief]

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