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Title:

Construction Time Reduction by Optimized Asphalt Pavement

Accession Number:

01587328

Record Type:

Component

Abstract:

The enhancement of the compact asphalt pavement method is one approach to reduce construction and closure times. As part of the project "Construction Time Reduction by Optimized Asphalt Pavement" concepts were processed, which allow the installation of thick asphalt layer packages by a single paver passage. For this purpose a new base/binder course mix AC 45 B/T S had to be designed, that can be installed in thicknesses of 20-22 cm and serve as a base for a simultaneously built thin surface course. In this way it replaces typical three-layer constructions. Furthermore, paving and compaction equipment had to be adjusted to the new method, as well as building processes optimized. The first testing took place on proving grounds. The paving results were technically equivalent to conventional paving methods. Computational analyses showed a lower fatigue sensitivity of the compact asphalt constructions. By building a test track on the German Federal Road B 68 it could be proved that the new method is viable even under real building circumstances and that it effects a significant reduction in construction time. Evenness turned out to be a critical factor. Thick asphalt layer packages are susceptible to deformation under compaction load, especially in edge zones, wherefore the stability of the edges has to be improved by development of new compaction modules.

Supplemental Notes:

This paper was sponsored by TRB committee AFH60 Standing Committee on Flexible Pavement Construction and Rehabilitation.

Monograph Accession #:

01584066

Report/Paper Numbers:

16-2645

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Tielmann, Moritz
Böhm, Stefan
Bald, J Stefan

Pagination:

16p

Publication Date:

2016

Conference:

Transportation Research Board 95th Annual Meeting

Location: Washington DC, United States
Date: 2016-1-10 to 2016-1-14
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; Photos; References; Tables

Geographic Terms:

Germany

Subject Areas:

Construction; Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I52: Construction of Pavements and Surfacings

Source Data:

Transportation Research Board Annual Meeting 2016 Paper #16-2645

Files:

TRIS, TRB, ATRI

Created Date:

Jan 12 2016 5:10PM