TRB Pubsindex
Text Size:
x

« Prev Next »

Return to Results | New Search

Bookmark and Share

Title:

Comparative Scaled MMLS3 Tests Versus Full-Scale MLS10 Tests in Mozambique

Accession Number:

01076799

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

Abstract:

Mozambique is rehabilitating and upgrading its roadway infrastructure. It found that some consulting engineers and contractors were not familiar with Mozambique conditions and materials. The World Bank sponsored a research project to support these preservation and maintenance efforts. The object is to develop guidelines for a mechanistic-empirical pavement design method for cement stabilized sand bases in Mozambique based on Accelerated Pavement Testing (APT) technology. The APT program encompasses both scaled (one third) and full-scale APT using mobile load simulator technology (MMLS3 and MLS10). MLS10 is operational since April 2006. It has four sets of dual wheels running in a closed loop with a maximum speed of 26kph. In this study each set of dual wheels was loaded to 60KN and loading was applied at various speeds. MLS10 operates on the same principle as the well known MMLS3. The latter was used in parallel with four single tires each carrying 2.7 kN. Ten MMLS3 tests including two field tests have been completed as well as three MLS10 tests. Completion of APT is expected by end September. This paper presents some results of the comparative testing with the two devices. MMLS3 testing was used to scope the study and provide guidelines for construction of full-scale test sections. The MLS10 expanded the investigation to full-scale pavements on natural subgrade. This also served to investigate construction techniques and the effect of simulated environment. Initial findings show excellent comparative and compatible MMLS3 and MLS10 tests results with respect to distress mechanisms as well as performance trends relative to load applications.

Monograph Accession #:

01042056

Report/Paper Numbers:

07-3132

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Hugo, Frederick

Pagination:

24p

Publication Date:

2007

Conference:

Transportation Research Board 86th Annual Meeting

Location: Washington DC, United States
Date: 2007-1-21 to 2007-1-25
Sponsors: Transportation Research Board

Media Type:

CD-ROM

Features:

Figures; Photos; References (6) ; Tables (5)

Geographic Terms:

Mozambique

Subject Areas:

Design; Geotechnology; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces

Source Data:

Transportation Research Board Annual Meeting 2007 Paper #07-3132

Files:

TRIS, TRB

Created Date:

Feb 8 2007 7:50PM