Materials for Emergency Repair of Runways.

Abstract

The primary objective of this project was to identify or develop an inorganic cementing material that is suitable for emergency repair of damaged airport runways under war conditions. In the first half of the work several commercially available rapid-hardening cements were screen-tested as presented in an earlier Progress Report. It was established on this basis that the SET-45 formulas and their modifications appeared to be the most promising for achieving the given objectives of this project. These objectives were: at least 2000 psi compressive strength at the age of 1 hour; adequately long setting time; good bond to old concrete; and minimum shrinkage under every weather condition. Since then both mechanical (compressive and flexural strengths, bond, shrinkage, etc.) and physicochemical tests (X-ray diffraction, scanning electron microscopy, infrared spectroscopy, etc.) were performed with these materials to see the technically important properties of these cements under various curing conditions and learn about the basic nature of these materials. Keywords: Hydration; Magnesium cement; Setting.

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Document Details

Document Type
Technical Report
Publication Date
Mar 20, 1985
Accession Number
ADA164225

Entities

People

  • Sandor Popovics

Organizations

  • Drexel University

Tags

DTIC Thesaurus Topics

  • Air Force
  • Boric Acids
  • Chemistry
  • Compressive Strength
  • Construction
  • Crystal Growth
  • Electron Microscopy
  • Engineering
  • Environment
  • Flexural Strength
  • Heat Energy
  • High Temperature
  • Infrared Spectroscopy
  • Low Temperature
  • Modulus Of Elasticity
  • Spectroscopy
  • X-Ray Diffraction

Fields of Study

  • Materials science

Readers

  • Instructional Design and Training Evaluation.
  • Pavement Materials Engineering.
  • Polymer Science and Technology

Technology Areas

  • Microelectronics