Natural Weathering of Mineral Stabilized Asphalt Coatings on Organic Felt |
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Page 5
Patent No. 2,417,058 . : Basis of test not reported . i Mid - Continent Asphalt . a Tabs partially torn 5.
Patent No. 2,417,058 . : Basis of test not reported . i Mid - Continent Asphalt . a Tabs partially torn 5.
Page 6
Granule - Surfaced , Felt - Base Specimens 7- X 11 - in specimens were mounted by nailing shingle fashion on protected decks with 4- X 7 - in tabs exposed to the weather . The decks for the smooth - surface specimens were protected with ...
Granule - Surfaced , Felt - Base Specimens 7- X 11 - in specimens were mounted by nailing shingle fashion on protected decks with 4- X 7 - in tabs exposed to the weather . The decks for the smooth - surface specimens were protected with ...
Page 7
Finally , the weakened tabs were blown away . 3.2 . Granule - Surfaced Specimens The granule - surfaced specimens have shown only the early stages of deterioration during the 15 years they have been exposed to the weather .
Finally , the weakened tabs were blown away . 3.2 . Granule - Surfaced Specimens The granule - surfaced specimens have shown only the early stages of deterioration during the 15 years they have been exposed to the weather .
Page 8
T Tab torn off . TABLE 7. ... the asphalt can accommodate the differential movements by flow , but at the lower end of the temperature range flow is not rapid enough and partial accommodation results by the curling of the shingle tabs .
T Tab torn off . TABLE 7. ... the asphalt can accommodate the differential movements by flow , but at the lower end of the temperature range flow is not rapid enough and partial accommodation results by the curling of the shingle tabs .
Page 9
T Tab torn off . 6. 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 ...
T Tab torn off . 6. 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 ...
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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 Composition Coating thickness 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 heated industry instances Institute 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 period physical prepared produced Properties provides Ratio Months Ratio reference reported Research Retained rolls roofing saturated felt sheets shingle Silica smooth smooth-surface smooth-surface specimens spalling surface tabs technical Technology temperature tests three asphalts type of specimen Venezuela asphalt Washington weather
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 |