Micah Heide and Donald Harvey
i Engineer Intern, Atkinson-Noland & Associates, Boulder, CO, USA, mheide@ana-usa.com
ii Associate Vice-President, Atkinson-Noland & Associates, Boulder, CO, USA, dharvey@ana-usa.com
ABSTRACT
Nondestructive evaluation (NDE) can be used to provide valuable information about the current state of existing masonry structures. NDE is often chosen as an alternative to more destructive methods to preserve as much of an existing structure as is reasonably possible and to minimize damage and disruption. This is especially beneficial when assessing historic structures where the preservation of original construction is often paramount. The appropriate use of NDE typically results in better economy for building assessments without compromising the retrieval of information necessary to inform any structural interventions. An overview of the NDE methods that can be applied to existing masonry structures as commonly conducted by Atkinson-Noland & Associates (ANA) and found in the literature are described in the associated paper. Such methods include, but are not limited to, ground penetrating radar, ultrasonic pulse echo, infrared thermography, and flatjack testing. The general procedures for each method are described and the applications to masonry investigation are presented. Additionally, field examples are included to illustrate the use and combination of NDE methods when applied to masonry structures.
KEYWORDS: NDE, investigation, brick, CMU, stone, nondestructive.
050-Heide.pdf
