- Author
- Rossiter, W. J., Jr. | Roberts, W. E. | Mathey, R. G.
- Title
- Friability of Spray-Applied Fireproofing and Thermal Insulations: Laboratory Evaluation of Prototype Test Devices.
- Coporate
- National Institute of Standards and Technology, Gaithersburg, MD General Services Administration, Washington, DC
- Report
- NISTIR 88-3848, November 1988, 80 p.
- Distribution
- Available from National Technical Information Service
- Keywords
- flameproofing; thermal insulation; evaluation; field tests; abrasion; impact tests; compression tests; shear tests; asbestos; construction materials
- Abstract
- The report describes the results of the second phase of a study to develop a field test method for assessing the friability of spray-applied fireproofing and thermal insulating materials. Phase 2 is the laboratory evaluation of the prototype devices for conducting surface and bulk compression/shear, indentation, abrasion, and impact tests. The results indicated that the surface and bulk compression/shear, indentation, and impact devices provided some measure of discrimination between samples subjectively judged as having 'high' and 'moderate' friability. In contrast, the abrasion device was non-discriminating in that, for all tests, a residue was produced. It was concluded that all devices be included in the field phase of the study using in-place spray-applied fireproofings having different levels of friability.