Natural Weathering of Mineral Stabilized Asphalt Coatings on Organic Felt |
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Page 6
As oxidation progres- sed , the surface became progressively more water soluble ; material was dissolved by rain outdoors or water spray in the weatherometers , and the glossy , ridged surface assumed a matte appearance .
As oxidation progres- sed , the surface became progressively more water soluble ; material was dissolved by rain outdoors or water spray in the weatherometers , and the glossy , ridged surface assumed a matte appearance .
Page 7
While blistering contributes to poor appearance , it does not interfere with the essential function of roofing , which is to keep the structures weatherproof . Therefore , blistering is not normally considered as a criterion of failure ...
While blistering contributes to poor appearance , it does not interfere with the essential function of roofing , which is to keep the structures weatherproof . Therefore , blistering is not normally considered as a criterion of failure ...
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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 |