Bronze-Brazed Joints for Sealing Rebar Penetrations of Electromagnetic Pulse Shields.

Abstract

The objective of the study was to determine whether bronze brazing could be used to seal steel reinforcing bar penetrations through the electromagnetic pulse (EMP) shields of Perimeter Acquisition Radar Buildings (PARB) when such seal joints are required to withstand design loads without degradation of the EMP shielding properties or of the mechanical properties of the reinforcing bars. Initially, five tests were performed on three concrete-encased bars that represented full-scale penetrations of reinforcing bars (No. 11, Grade 75) through 1/4-inch-thick steel plates that represented the EMP shield. After completion of each test, the concrete was removed from the brazed joint, and dye penetrant was used to examine the joint for cracking. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1972
Accession Number
AD0744459

Entities

People

  • James R. Hossley

Tags

DTIC Thesaurus Topics

  • Acquisition
  • Brazed Joints
  • Brazing
  • Concrete
  • Degradation
  • Electromagnetic Pulses
  • Joining
  • Joints
  • Mechanical Properties
  • Radiation Shielding
  • Shielding

Readers

  • Materials Science and Engineering.
  • Mechanical Engineering/Mechanics of Materials.
  • Optical Fiber Sensing and Electromagnetic Propagation.