Natural Weathering of Mineral Stabilized Asphalt Coatings on Organic Felt |
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Page 1
In general , these early results from outdoor exposure tend to corroborate the results obtained on these coatings exposed in weatherometers . Key words : Additive ; asphalt ; durability ; felt ; stabilizer ; weathering . 1.
In general , these early results from outdoor exposure tend to corroborate the results obtained on these coatings exposed in weatherometers . Key words : Additive ; asphalt ; durability ; felt ; stabilizer ; weathering . 1.
Page 7
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 . Changes observed early in the exposure period consisted of small ...
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 . Changes observed early in the exposure period consisted of small ...
Page 8
3 Inspection sheets lost . failure , cannot be used as an early warning of impending failure . While early cracking of the coating on shingles may be startling to an uninformed observer , the data in tables 6 and 7 for smooth- surface ...
3 Inspection sheets lost . failure , cannot be used as an early warning of impending failure . While early cracking of the coating on shingles may be startling to an uninformed observer , the data in tables 6 and 7 for smooth- surface ...
Page 10
Both sets of specimens were exposed and both experienced large losses of granules early during their exposure . The California specimens containing clay passed the test marginally . They , also , lost some granules early during exposure ...
Both sets of specimens were exposed and both experienced large losses of granules early during their exposure . The California specimens containing clay passed the test marginally . They , also , lost some granules early during exposure ...
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Common terms and phrases
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 |