Natural Weathering of Mineral Stabilized Asphalt Coatings on Organic Felt |
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Page 7
After about 12 years of exposure , cracks began to appear in the coatings . ... This ratio is frequently more significant than the actual number of months of exposure , for this comparison of a coating with mineral additives to its base ...
After about 12 years of exposure , cracks began to appear in the coatings . ... This ratio is frequently more significant than the actual number of months of exposure , for this comparison of a coating with mineral additives to its base ...
Page 8
... 1 15 Mil ( 0.38 mm ) Thickness Specimens have not progressed to this failure level after 200 months of exposure . ... Initial Spall 25 % Spalled 50 % Spalled Months Ratio Months Ratio Months Ratio Months Ratio Months Ratio 2 201 60 ...
... 1 15 Mil ( 0.38 mm ) Thickness Specimens have not progressed to this failure level after 200 months of exposure . ... Initial Spall 25 % Spalled 50 % Spalled Months Ratio Months Ratio Months Ratio Months Ratio Months Ratio 2 201 60 ...
Page 9
... mm ) Thickness Outdoor Exposures Specimens have not progressed to this failure level after 200 months of exposure . ... 25 % Spalled 50 % Spalled Months Ratio Months Ratio Months Ratio Months Ratio Months Ratio California Asphalt .
... mm ) Thickness Outdoor Exposures Specimens have not progressed to this failure level after 200 months of exposure . ... 25 % Spalled 50 % Spalled Months Ratio Months Ratio Months Ratio Months Ratio Months Ratio California Asphalt .
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60 percent aluminum aluminum-base specimens appearance Applied areas asphalt coatings ASTM base Black Slate 25 blistering Blue Black Slate Building Building Science Series Bureau of Standards California asphalt Cement Center cents Characteristics Clay Column COMMERCE concentrations consists containing corresponding cracking criteria deterioration differences direction divisions doctor bar Dolomite durability early effects exposed exposure failed failure felt-base specimens FIGURE Fly Ash Government granule-surfaced specimens granules grid half heated industry Institute Kraft paper listed longer Loss on ignition losses machine materials measurement method Mica Mid-Continent asphalt mils mineral additives Months Ratio Months National Bureau observed Office Organic panel passed performances period physical prepared procedure produced Properties provides Ratio Months Ratio reference reported Research rolls roofing saturated felt sheets shingle Silica smooth smooth-surface smooth-surface specimens spalling surface TABLE technical Technology temperature tests three asphalts Venezuela asphalt Washington weather weatherometer tests
Bibliographic information
| Title | Natural Weathering of Mineral Stabilized Asphalt Coatings on Organic Felt Volume 24 of Building science series, United States National Bureau of Standards, ISSN 0083-1794 |
| Author | Sidney H. Greenfeld |
| Publisher | U.S. National Bureau of Standards, 1969 |
| Original from | the University of Michigan |
| Digitized | 18 Aug 2006 |
| Length | 15 pages |
| Export Citation | BiBTeX EndNote RefMan |