To obtain a copy of a specific publication, users should contact the publication's publisher directly.
Abstract
This report describes results of the third and final phase of a study conducted for the GSA to develop a field test method to measure the friability of spray applied fireproofing and thermal insulation materials. Field tests were conducted on 17 fibrous and two cementitious spray applied materials to assess surface and bulk compression/shear, indentation, abrasion, and impact properties. The tests were performed using prototype devices developed in an earlier phase of the study. As expected, the field specimens displayed varying response to dislodgment or indentation in the tests. The field tests confirmed that the goal of the study had been achieved. In the case of surface compression/shear test, it was found that, where comparable replicate specimends were available, variability in the test result was, in some cases, 30% or greater. It was also found that the use of the indentation test was limited by specimen thickness, and consequently, it was recommended that this test be omitted from testing of material friability. It was also recommended that the surface and bulk compression/shear, abrasion, and impact tests all be used by GSA in a procedure for assessing the friable nature of spray applied fireproofings. Assessments of friabiity can be performed using a systematic procedure for conducting tests as outliend in a flow diagram. A third recommendation was that, if testing is to be conducted with the intent to monitor changes in the friability of the specimens, appropriate statistical procedures should be developed.
This report describes results of the third and final phase of a study conducted for the GSA to develop a field test method to measure the friability of spray applied fireproofing and thermal insulation materials. Field tests were conducted on 17 fibrous and two cementitious spray applied materials to assess surface and bulk compression/shear, indentation, abrasion, and impact properties. The tests were performed using prototype devices developed in an earlier phase of the study. As expected, the field specimens displayed varying response to dislodgment or indentation in the tests. The field tests confirmed that the goal of the study had been achieved. In the case of surface compression/shear test, it was found that, where comparable replicate specimends were available, variability in the test result was, in some cases, 30% or greater. It was also found that the use of the indentation test was limited by specimen thickness, and consequently, it was recommended that this test be omitted from testing of material friability. It was also recommended that the surface and bulk compression/shear, abrasion, and impact tests all be used by GSA in a procedure for assessing the friable nature of spray applied fireproofings. Assessments of friabiity can be performed using a systematic procedure for conducting tests as outliend in a flow diagram. A third recommendation was that, if testing is to be conducted with the intent to monitor changes in the friability of the specimens, appropriate statistical procedures should be developed.
Date
3/1989
3/1989
Author(s)
W Rossiter Jr; W Roberts; R Mathey
W Rossiter Jr; W Roberts; R Mathey
Page(s)
64
64
Keyword(s)
abrasion; asbestos containing material; compression; fireproof friability; evaluation; shear; indentation; thermal insulation
abrasion; asbestos containing material; compression; fireproof friability; evaluation; shear; indentation; thermal insulation