Natural Weathering of Mineral Stabilized Asphalt Coatings on Organic Felt |
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Sidney H. Greenfeld. ARCHITECTURE B 916,963 TH 7 058 no . 24 The third type of specimen was used for accelerated weathering. Front Cover.
Sidney H. Greenfeld. ARCHITECTURE B 916,963 TH 7 058 no . 24 The third type of specimen was used for accelerated weathering. Front Cover.
Page 1
Types of Specimens Three types of specimens were included in this study . The basic specimen was a smooth - surface coated felt . These were exposed with coating thicknesses of 15 and 25 mils , 3 were back - coated with the same coating ...
Types of Specimens Three types of specimens were included in this study . The basic specimen was a smooth - surface coated felt . These were exposed with coating thicknesses of 15 and 25 mils , 3 were back - coated with the same coating ...
Page 2
The third type of specimen was used for accelerated weathering tests . ... Equipment for Preparation of Specimens The felt - base specimens were all back - coated with the apparatus shown schematically in figure 2 . a . d .
The third type of specimen was used for accelerated weathering tests . ... Equipment for Preparation of Specimens The felt - base specimens were all back - coated with the apparatus shown schematically in figure 2 . a . d .
Page 5
Upon cooling , each specimen was cut to 7 X 11 in and exposed the next day on wooden roof decks , which had been covered ... Characteristics of granules The granules were of the ceramic type , with the characteristics listed in table 4.
Upon cooling , each specimen was cut to 7 X 11 in and exposed the next day on wooden roof decks , which had been covered ... Characteristics of granules The granules were of the ceramic type , with the characteristics listed in table 4.
Page 6
7- X 11 - in specimens were mounted by nailing shingle fashion on protected decks with 4- X 7 - in tabs exposed to the weather . ... Aluminum - Base Specimens b . ... Only failures by cracking were recorded for this type of 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 . ... Aluminum - Base Specimens b . ... Only failures by cracking were recorded for this type of specimens .
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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 |