- Author
-
Fishburn, C. C.
- Title
- Physical Properties of Some Samples of Asbestos-Cement Siding.
- Coporate
- National Bureau of Standards, Washington, DC
- Report
-
BMS 122,
July 6, 1951,
17 p.
- Keywords
-
cements
|
asbestos
|
physical properties
|
weather effects
|
roofing (finishes)
|
elastic properties
|
absorption
|
dimensional stability
|
siding
- Abstract
- Measurements were made of the water absorption, weight, proosity, dimensional stability, flexural strength, and flexibility of 23 samples of American asbestos-cement siding furnished by eight manufacturers. A report of an investigation on the weathering of British asbeston-cement roofing products was studied and is briefly reported in this paper. The modulus of elasticity of the siding samples increased with decrease in absorption. The British investigation indicated that samples of roofing products having a high resistance to freeqing and thawing also had low absorption and high modulus of elasticity. Slight decrease in length and in moisture movement were noted with repeated cycles of wetting and drying.