Natural Weathering of Mineral Stabilized Asphalt Coatings on Organic Felt |
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The series presents research results , test methods , and performance criteria related to the structural and enviornmental functions and the durability and safety characteristics of building elements and systems .
The series presents research results , test methods , and performance criteria related to the structural and enviornmental functions and the durability and safety characteristics of building elements and systems .
Page 1
The verification of the conclusions drawn in these articles will be found in the results obtained for the outdoor tests . This paper is in the nature of a progress report of the first 15-17 years of these outdoor tests .
The verification of the conclusions drawn in these articles will be found in the results obtained for the outdoor tests . This paper is in the nature of a progress report of the first 15-17 years of these outdoor tests .
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The third type of specimen was used for accelerated weathering tests . It consisted of the coating on 234- X 6 - in aluminum panels . The results of these tests were reported earlier ( 3 ) . E. Embedding rolls .
The third type of specimen was used for accelerated weathering tests . It consisted of the coating on 234- X 6 - in aluminum panels . The results of these tests were reported earlier ( 3 ) . E. Embedding rolls .
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Characteristics of unstabilized asphalt coatings used as controls Asphalt California Mid - continent Venezuela Test ° F ( ° C ) 0.1 mm 0.1 mm 0.1 mm . Softening point ! Penetration at 32 ° F ( 0 ° C ) ? Penetration at 77 ° F ( 25 ° C ) ...
Characteristics of unstabilized asphalt coatings used as controls Asphalt California Mid - continent Venezuela Test ° F ( ° C ) 0.1 mm 0.1 mm 0.1 mm . Softening point ! Penetration at 32 ° F ( 0 ° C ) ? Penetration at 77 ° F ( 25 ° C ) ...
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When the temperature of the test asphalt was in the range of 400 to 450 ° F ( 204 to 232 ° C ) , any required mineral matter , preheated to 300 ° F ( 149 ° C ) , was stirred into it with a large chromium - plated ladle .
When the temperature of the test asphalt was in the range of 400 to 450 ° F ( 204 to 232 ° C ) , any required mineral matter , preheated to 300 ° F ( 149 ° C ) , was stirred into it with a large chromium - plated ladle .
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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 |