Design of Airport Pavements for Expansive Soils.

Abstract

Expansive soil subgrades exhibit volume changes with variation in moisture condition. These changes result in differential movement of airport pavements resting on these soils. Special design procedures must be used to account for the expansive soil activity during equilibration. In addition, special precautions are required to protect the subgrade from moisture variation with climate. Measurement of soil suction is a key step in quantifying moisture-induced soil behavior. Procedures are outlined for suction characterization of the soil and for estimating the in situ differential movement likely to occur under the pavement. Once the wavelength and amplitude characteristics of the differential movement are obtained, design calculations to select the thickness and materials for the pavement may proceed.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1981
Accession Number
ADA104660

Entities

People

  • R. Gordon Mckeen

Tags

Communities of Interest

  • Air Platforms
  • Ground and Sea Platforms
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Agriculture
  • Air Force
  • Aircrafts
  • Civil Engineering
  • Climate Change
  • Computers
  • Construction
  • Heat Energy
  • Landing Gear
  • Literature Surveys
  • Measurement
  • Mechanics
  • Modulus Of Elasticity
  • Moisture Content
  • Soil Science
  • Test Methods
  • Water Vapor

Readers

  • Marine Mammal Biology
  • Pavement Materials Engineering.
  • Systems Analysis and Design