Natural Weathering of Mineral Stabilized Asphalt Coatings on Organic FeltU.S. National Bureau of Standards, 1969 - 15 pages |
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Page
... Failure criteria . 7 5 . Outdoor performance 7 5.1 . Smooth - surface , felt - base specimens . 7 5.2 . Granule - surfaced , felt - base specimens . 10 6 . Correlation with exposures in accelerated weathering machine . 10 7 ...
... Failure criteria . 7 5 . Outdoor performance 7 5.1 . Smooth - surface , felt - base specimens . 7 5.2 . Granule - surfaced , felt - base specimens . 10 6 . Correlation with exposures in accelerated weathering machine . 10 7 ...
Page 4
... another of the spon- sors for saturation by personnel on the project . The dry and saturated felts had the characteristics listed in table 3 . 3. Progress of Deterioration 4. Failure Criteria 5. Outdoor Performance 4.
... another of the spon- sors for saturation by personnel on the project . The dry and saturated felts had the characteristics listed in table 3 . 3. Progress of Deterioration 4. Failure Criteria 5. Outdoor Performance 4.
Page 6
... failure was evidenced by pinholing in noncracked areas or at crack intersections . In the felt - base specimens , widely spaced cracks became interlaced with narrower cracks until spal- ling of the small areas surrounded by cracks began ...
... failure was evidenced by pinholing in noncracked areas or at crack intersections . In the felt - base specimens , widely spaced cracks became interlaced with narrower cracks until spal- ling of the small areas surrounded by cracks began ...
Page 7
... failure . However , blisters can act as centers of stress concentration and lead to earlier cracking and spalling of ... failed . However , it has become customary to replace roofing for reasons other than , and earlier than , complete ...
... failure . However , blisters can act as centers of stress concentration and lead to earlier cracking and spalling of ... failed . However , it has become customary to replace roofing for reasons other than , and earlier than , complete ...
Page 8
... 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 specimens show the lack of ...
... 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 specimens show the lack of ...
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 |