Evaluation of an Instrument to Detect Presence, Size and Depth of Steel Embedded in Portland-Cement Concrete

Abstract

Two portable, lightweight instruments, operating on the principle of comparing the fixed electromagnetic characteristics of a reference transformer with the variable ones of a measured transformer, were evaluated for ability to locate and identify reinforcing steel in reinforced concrete. Both instruments were tested for locating reinforcing rods, identifying rods up to 1 in. in diameter with a cover of 2 to a in., and determining thickness of concrete cover to an accuracy of 1/4 in.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1965
Accession Number
AD0740881

Entities

People

  • K. L. Saucier

Tags

DTIC Thesaurus Topics

  • Accuracy
  • Calibration
  • Concrete
  • Construction
  • Coverings
  • Deflection
  • Diameters
  • Engineers
  • Galvanometers
  • Identification
  • Magnetic Flux
  • Measurement
  • Portland Cement
  • Reinforced Concrete
  • Structural Components
  • Test And Evaluation
  • X Rays

Readers

  • Aerospace Test and Evaluation
  • Pavement Materials Engineering.