Natural Weathering of Mineral Stabilized Asphalt Coatings on Organic Felt |
From inside the book
Page
3.3 . Blistering Failure criteria Outdoor performance 5.1 . Smooth - surface , felt - base specimens . 5.2 . Granule - surfaced , felt - base specimens Correlation with exposures in accelerated weathering machine Conclusions References ...
3.3 . Blistering Failure criteria Outdoor performance 5.1 . Smooth - surface , felt - base specimens . 5.2 . Granule - surfaced , felt - base specimens Correlation with exposures in accelerated weathering machine Conclusions References ...
Page 2
F. Belt drive for pulling canvas belt through the machine . c . Back - Coater 2.2 . Equipment for Preparation of Specimens The felt - base specimens were all back - coated with the apparatus shown schematically in figure 2 . a .
F. Belt drive for pulling canvas belt through the machine . c . Back - Coater 2.2 . Equipment for Preparation of Specimens The felt - base specimens were all back - coated with the apparatus shown schematically in figure 2 . a .
Page 6
The hot plate ( A ) on the laboratory roofing machine ( fig . 1 ) was heated to about 250 ° F ( 121 ° C ) and the doctor bar ( B ) to 450 ° F ( 232 ° C ) . The canvas belt was threaded through the machine and a sheet of 12 - in wide ...
The hot plate ( A ) on the laboratory roofing machine ( fig . 1 ) was heated to about 250 ° F ( 121 ° C ) and the doctor bar ( B ) to 450 ° F ( 232 ° C ) . The canvas belt was threaded through the machine and a sheet of 12 - in wide ...
Page 8
It is evident from the above data asphalt moves roughly 25 times as much as the saturated felt does in the cross direction and 50 times as much as the saturated felt in the machine direction as the temperature changes .
It is evident from the above data asphalt moves roughly 25 times as much as the saturated felt does in the cross direction and 50 times as much as the saturated felt in the machine direction as the temperature changes .
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Correlation With Exposures in Accelerated Weathering Machine TT &. 25 % Cracked 50 % Cracked Initial Spall 25 % Spalled 50 % Spalled Coating description Months Ratio Months Ratio Months Ratio Months Ratio Months Ratio 10 1.0 10 25 58 ...
Correlation With Exposures in Accelerated Weathering Machine TT &. 25 % Cracked 50 % Cracked Initial Spall 25 % Spalled 50 % Spalled Coating description Months Ratio Months Ratio Months Ratio Months Ratio Months Ratio 10 1.0 10 25 58 ...
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Common terms and phrases
60 percent aluminum aluminum-base specimens appearance Applied 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 embedding Evaluation exposed exposure failed failure felt-base specimens FIGURE Fly Ash Government granule-surfaced specimens granules heated industry instances 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 panel passed performances physical prepared produced progressed Properties provides Ratio Months Ratio reference reported Research rolls roofing saturated felt sheets shingle Silica smooth smooth-surface smooth-surface specimens spalling surface technical Technology temperature tests three asphalts Venezuela asphalt Washington weather weatherometer tests wide
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 Volume 24 of National Bureau of Standards building science series |
| 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 |