Natural Weathering of Mineral Stabilized Asphalt Coatings on Organic Felt |
From inside the book
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Granule - surfaced specimens .. Back - coater .. Aluminum - base panels . 2.3 . Materials . 1 1 a . Mineral matter .. b . Asphalts C. Saturated felts d . Aluminum panels e . Granules 2 2 2 2 2 2 2 2 4 + 4 4 a . C. 2.5 .
Granule - surfaced specimens .. Back - coater .. Aluminum - base panels . 2.3 . Materials . 1 1 a . Mineral matter .. b . Asphalts C. Saturated felts d . Aluminum panels e . Granules 2 2 2 2 2 2 2 2 4 + 4 4 a . C. 2.5 .
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In addition to being front and back coated , it was surfaced with granules . These , too , were trimmed to 7 X 11 in . FIGURE 1. Apparatus for preparing granule - surfaced specimens . 11 Mil = 0.025 mm ( approx ) . " 1 in = 2.54 cm .
In addition to being front and back coated , it was surfaced with granules . These , too , were trimmed to 7 X 11 in . FIGURE 1. Apparatus for preparing granule - surfaced specimens . 11 Mil = 0.025 mm ( approx ) . " 1 in = 2.54 cm .
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Apparatus for preparing granule - surfaced specimens . A. Heated bed for keeping felts warm while asphalt coating is poured on them . B. Doctor bar for leveling and defining coating thickness . C. Granule hopper and distributor .
Apparatus for preparing granule - surfaced specimens . A. Heated bed for keeping felts warm while asphalt coating is poured on them . B. Doctor bar for leveling and defining coating thickness . C. Granule hopper and distributor .
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Characteristics of granules The granules were of the ceramic type , with the characteristics listed in table 4. These characteristics were supplied by the granule manufacturer and no attempt was made to verify them .
Characteristics of granules The granules were of the ceramic type , with the characteristics listed in table 4. These characteristics were supplied by the granule manufacturer and no attempt was made to verify them .
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Granule - Surfaced , Felt - Base Specimens The asphalt and felts were prepared as in 2.4a . ... ( B ) and granule hopper ( C ) ; then the motor was stopped for 2 min to permit the panel to cool and the granules to become firmly set .
Granule - Surfaced , Felt - Base Specimens The asphalt and felts were prepared as in 2.4a . ... ( B ) and granule hopper ( C ) ; then the motor was stopped for 2 min to permit the panel to cool and the granules to become firmly set .
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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 |