Natural Weathering of Mineral Stabilized Asphalt Coatings on Organic Felt |
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Page 1
Six finely divided mineral additives ( blue black slate , clay , dolomite , fly ash , mica , and silica ) were evaluated at concentrations up to 60 percent in California , Mid Continent and Venezuela asphalts .
Six finely divided mineral additives ( blue black slate , clay , dolomite , fly ash , mica , and silica ) were evaluated at concentrations up to 60 percent in California , Mid Continent and Venezuela asphalts .
Page 3
Characteristics of mineral additives Blue Black Slate Florida Clay 1 Niagara Dolomite Low Carbon Fly Ash Tennessee Mica Lake Erie Silica # 50 - Quarry Delta , Pa . Mine Edgar , Fla . Quarry Joliet , Ill . Philadelphia Electric Co.
Characteristics of mineral additives Blue Black Slate Florida Clay 1 Niagara Dolomite Low Carbon Fly Ash Tennessee Mica Lake Erie Silica # 50 - Quarry Delta , Pa . Mine Edgar , Fla . Quarry Joliet , Ill . Philadelphia Electric Co.
Page 7
This ratio is frequently more significant than the actual number of months of exposure , for this comparison of a coating with mineral additives to its base asphalt tends to compensate for variations in the weather , or climate .
This ratio is frequently more significant than the actual number of months of exposure , for this comparison of a coating with mineral additives to its base asphalt tends to compensate for variations in the weather , or climate .
Page 9
For materials with other than those with plate- like particle shapes , the response to mineral addi- tives cannot be discussed in general terms [ 3 ] . The other additives used tended to have blocky to spherical shapes ; their ...
For materials with other than those with plate- like particle shapes , the response to mineral addi- tives cannot be discussed in general terms [ 3 ] . The other additives used tended to have blocky to spherical shapes ; their ...
Page 10
California asphalt without additives . Thus , the pattern established by the unstabilized asphalts ... The mineral additives either improved the durability or had little effect . Mica and blue black slate always improved the durability ...
California asphalt without additives . Thus , the pattern established by the unstabilized asphalts ... The mineral additives either improved the durability or had little effect . Mica and blue black slate always improved the durability ...
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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 |