- Author
- Carino, N. J.
- Title
- Potential Nondestructive Testing Methods for Evaluation of Stone. Letter Report to National Park Service.
- Coporate
- National Institute of Standards and Technology, Gaithersburg, MD
- Report
- Letter Report, 1990, 14 p.
- Keywords
- concretes | impact-echo | nondestructive testing | pulse velocity | radar | rebound hammer | stone
- Abstract
- The National Park Service is planning condition assessments of the Lincoln and Jefferson Memorials. NIST was requested to recommend potential nondestructive testing methods that could be used to assess the condition of the stone. The four techniques which are discussed have been applied in the assessment of concrete structures, and it is believed they are equally applicable to the inspection of stone. The methods are: the rebound hammer, ultrasonic pulse velocity, impact-echo, and ground penetrating radar. The objective of this report is to explain the operating principles, advantages and disadvantages of these methods.