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Title: Reinforced Concrete Antenna Pedestal

Author(s): Benjamin P. Saldua, Ethan C. Dodge, Peter R. Kolf, and Carlton A. Olson

Publication: Concrete International

Volume: 40

Issue: 4

Appears on pages(s): 40-42

Keywords: defect, repair, roof, slab

Date: 4/1/2018

Nondestructive testing was used to evaluate concrete consolidation in an antenna pedestal recently constructed at the Canberra Deep Space Communications Complex in Australia. Evaluations were based on impulse-response tests, ultrasonic shear-wave tomography, core tests, and visual observations. The work showed that impulse-response testing allows rapid, reliable identification of significant defects. The consequent repair program is summarized.


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