00739779

Component

https://doi.org/10.3141/1568-12

http://scholar.google.com...hite&publication_year=1997

The primary source of water in pavements is from surface infiltration. Water from surface infiltration and other sources increases pavement maintenance costs and shortens pavement life. These effects can be mitigated by including a subdrainage system in the pavement design. A study of pavement subdrainage systems has been conducted that included a phase for laboratory tests for the hydraulic characteristics of materials used in three test sections built on I-469 at Fort Wayne, Indiana. The purpose of building these test sections was to evaluate the subdrainage performance and materials used in the sections. The sections differ in the permeable drainage layer as well as the filter (separation) layer. The sections were instrumented with different types of sensors. Instrumentation installed in the sections included time domain reflectometry (TDR) probes, moisture suction blocks, temperature probes, resistivity tree, and rainfall and outflow tipping buckets. Other features of the instrumentation site included an air temperature probe and access tube for a nuclear moisture content probe. The laboratory hydraulic characteristic test results on the materials are presented. Field moisture condition in the layers is also presented. Calibration equations for the TDR are developed for the field materials. A summary of three rainfall events and pavement outflow volumes recorded for the tests is presented. Recommendations are made for materials to be used in subdrainage systems.

This paper appears in Transportation Research Record No. 1568, Pavement Rehabilitation and Design.

English

p. 96-105

1997

Transportation Research Record

0309059747

Figures (8) ; Photos (1) ; References (11) ; Tables (5)

Flexible pavements; Hydraulic properties; Instrumentation; Laboratory tests; Materials selection; Moisture content; Pavement design; Permeability; Subdrains; Test sections

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

TRIS, TRB, ATRI

Aug 25 1997 12:00AM

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• DEVELOPMENT OF A ROLLER-COMPACTED CONCRETE PAVEMENT CRACK AND JOINT SPACING MODEL
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• EFFECT OF NONLINEAR TEMPERATURE GRADIENT ON CURLING STRESS IN CONCRETE PAVEMENTS
• ELASTIC PAVEMENT ANALYSIS USING INFINITE ELEMENTS
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• FRACTURE MECHANICS IN PAVEMENT ENGINEERING: THE SPECIMEN-SIZE EFFECT
• IMPLEMENTATION FEASIBILITY OF ASPHALT CONCRETE-OVERLAID PORTLAND CEMENT CONCRETE PAVEMENT REHABILITATION GUIDELINES
• IMPROVED METHODOLOGY FOR DEVELOPING A LONG-RANGE PAVEMENT REHABILITATION PROGRAM
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• RELIABILITY DESIGN OF FLEXIBLE AIRFIELD PAVEMENTS: ELASTIC LAYERED METHOD
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