- 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.