- Author
-
Rossiter, W. J., Jr.
- Title
- Data on Polymer-Modified Bitumen Membrane Materials. Letter Report.
- Coporate
- National Institute of Standards and Technology, Gaithersburg, MD
- Sponsor
- Army Construction Engineering Research Lab., Champaign, IL
- Report
-
Letter Report
1991
19 p.
- Keywords
-
bitumens
|
membranes
|
test methods
|
thermogravimetric analysis
|
thickness
|
tensile strength
|
elongation
|
strain energy
|
tear resistance
|
moisture content
|
low temperature
|
static puncture tests
|
dynamic puncture tests
|
coatings
- Abstract
- Modified Bitumen Test Specimens: Sample A: A two-ply composite consisting of a modified bitumen top sheet adhered by torch welding to a glass fiber base sheet. The two piles could not be readily delaminated, and consequently, the tests were generally conducted on the composite. An exception was the 2-year old sample which contained no base sheet when removed from the roof. This sample was then tested as a single-ply sheet. Sample B: A two-ply composite consisting of a modified bitumen top sheet adhered with hot air-blown asphalt to a glass fiber base sheet. The two plies could be readily delaminated, and consequently, the tests were conducted on the modified bitumen sheet alone. Sample C: A single-ply modified bitumen sheet that contained a spary-applied protective coating. The coating could note be readily removed from the modified bitumen sheet, and consequently, the tests were conducted on the modified bitumen with the coating in place.