01122455

Component

https://doi.org/10.3141/2116-13

http://scholar.google.com...rsey&publication_year=2009

A full-scale test section was constructed and trafficked by the U.S. Army Engineer Research and Development Center to evaluate the performance of geosynthetic reinforced aggregate road sections constructed with marginal base materials over a typical subgrade. Eight instrumented aggregate road sections—including three different aggregate base materials and two different geosynthetics—were constructed. The mechanistic response and permanent surface deformation of each pavement section were monitored at selected intervals during trafficking, and the data were analyzed to determine the benefit of using geotextiles or geogrids to reinforce aggregate roads. The test section’s results indicated that the geosynthetics improved the performance of the reinforced pavement sections compared with unreinforced sections for all aggregate base materials. The mechanistic response in terms of surface deflection, deflection at the top of the subgrade, and vertical stress at the top of the subgrade was favorably consistent with the observed permanent deformation of the individual test items.

01147419

09-1359

English

pp 96-107

2009

Transportation Research Record: Journal of the Transportation Research Board

9780309126311

Print

Figures (6) ; References (8) ; Tables (4)

Aggregates; Base course (Pavements); Deflection; Geogrids; Geosynthetics; Geotextiles; Material reinforcement; Rutting; Subgrade (Pavements); Test sections; Unpaved roads

Geotechnology; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I33: Other Materials used in Pavement Layers

TRIS, TRB, ATRI

Jan 30 2009 5:37PM

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• Instrumented Rollers to Assess Construction Quality on Texas Projects
• North Carolina Department of Transportation’s Practice and Experience with Design–Build Contracts: Geotechnical Perspective
• Stiffness-Based Assessment of Pavement Foundation Materials Using Portable Tools