Natural Weathering of Mineral Stabilized Asphalt Coatings on Organic Felt |
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Page 1
The mica and blue black slate increased the durabilities of all three asphalts at all concentrations and two coating thicknesses . Fly ash , clay , dolomite , and silica were beneficial in some combinations , but had little effect in ...
The mica and blue black slate increased the durabilities of all three asphalts at all concentrations and two coating thicknesses . Fly ash , clay , dolomite , and silica were beneficial in some combinations , but had little effect in ...
Page 2
The results of these tests were reported earlier [ 3 ] . 2.2 . Equipment for Preparation of Specimens a . Smooth - Surface , Felt - Base Specimens Crimped ( solder free ) gallon cans . Asphalt melting bath . Six - ounce ladle .
The results of these tests were reported earlier [ 3 ] . 2.2 . Equipment for Preparation of Specimens a . Smooth - Surface , Felt - Base Specimens Crimped ( solder free ) gallon cans . Asphalt melting bath . Six - ounce ladle .
Page 6
3. Progress of Deterioration 4. Failure Criteria 5. Outdoor Performance TABLE 6. Smooth surface. b . Granule - Surfaced , Felt - Base Specimens The asphalt and felts were prepared as in 2.4a . The hot plate ( A ) on the laboratory ...
3. Progress of Deterioration 4. Failure Criteria 5. Outdoor Performance TABLE 6. Smooth surface. b . Granule - Surfaced , Felt - Base Specimens The asphalt and felts were prepared as in 2.4a . The hot plate ( A ) on the laboratory ...
Page 7
Only a very few specimens made with California asphalt had any blisters ; none had more than three . While blistering contributes to poor appearance , it does not interfere with the essential function of roofing , which is to keep the ...
Only a very few specimens made with California asphalt had any blisters ; none had more than three . While blistering contributes to poor appearance , it does not interfere with the essential function of roofing , which is to keep the ...
Page 9
The other additives used tended to have blocky to spherical shapes ; their performances were varied in the three asphalts . Fly ash was the next best performer in that it increased the durability of some coatings as much as 170 percent ...
The other additives used tended to have blocky to spherical shapes ; their performances were varied in the three asphalts . Fly ash was the next best performer in that it increased the durability of some coatings as much as 170 percent ...
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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 |