Accession Number:

ADA164225

Title:

Materials for Emergency Repair of Runways.

Descriptive Note:

Final rept. 1 Apr 84-14 Feb 85,

Corporate Author:

DREXEL UNIV PHILADELPHIA PA DEPT OF CIVIL ENGINEERING

Personal Author(s):

Report Date:

1985-03-20

Pagination or Media Count:

236.0

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.

Subject Categories:

  • Ceramics, Refractories and Glass
  • Civil Engineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE