Natural Weathering of Mineral Stabilized Asphalt Coatings on Organic Felt |
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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 .
Page 1
The coatings were applied in two film thicknesses , and were exposed unsurfaced and surfaced with roofing granules . 1 Formerly the Asphalt Roofing Industry Bureau . ? Figures in brackets indicate the literature references at the end of ...
The coatings were applied in two film thicknesses , and were exposed unsurfaced and surfaced with roofing granules . 1 Formerly the Asphalt Roofing Industry Bureau . ? Figures in brackets indicate the literature references at the end of ...
Page 2
Apparatus for preparing granule - surfaced specimens . A. Heated bed for keeping felts warm while asphalt ... E. Granule pressing , or embedding , rolls . ... D. S - rolls for initial embedment of the granules and removal of excess .
Apparatus for preparing granule - surfaced specimens . A. Heated bed for keeping felts warm while asphalt ... E. Granule pressing , or embedding , rolls . ... D. S - rolls for initial embedment of the granules and removal of excess .
Page 5
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 . a . 2.4 .
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 . a . 2.4 .
Page 6
Granule - Surfaced , Felt - Base Specimens The asphalt and felts were prepared as in 2.4a . ... to be assured that the doctor bar was at the proper distance from the machine bed , a blank run was made in which no granules were used .
Granule - Surfaced , Felt - Base Specimens The asphalt and felts were prepared as in 2.4a . ... to be assured that the doctor bar was at the proper distance from the machine bed , a blank run was made in which no granules were used .
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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 |