Inflation/Foam/Shotcrete System for Rapid Construction of Circular Arches.

Abstract

This study analyzed, designed, and fabricated a semicircular arch structure 32 ft (9.8 m) long by 13 ft (4 m) high using the inflation/foam/shotcrete (IFS) system. Equipment cost, man-hours, skill levels, and time required for construction were monitored. The test results indicate that the IFS system can be used to construct arch-shaped structures. Skills required to operate the foam and shotcrete equipment are consistent with those available in the Army. The structural failure of the urethane foam arch indicated that creep is a significant factor in the behavior of the polyurethane foam arch and can cause instability and collapse. (Author)

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1979
Accession Number
ADA069878

Entities

People

  • M. Woratzeck

Organizations

  • Construction Engineering Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Army Facilities
  • Compressive Strength
  • Concrete
  • Construction
  • Elastic Properties
  • Engineering
  • Fibers
  • Flexural Strength
  • Internal Pressure
  • Machines
  • Materials
  • Military Facilities
  • Modulus Of Elasticity
  • Polyurethanes
  • Safety Factor
  • Structural Loads
  • Tensile Strength

Readers

  • Fire Suppression Systems Design.
  • Logistics and Supply Chain Management.
  • Structural Dynamics.