Natural Weathering of Mineral Stabilized Asphalt Coatings on Organic FeltU.S. National Bureau of Standards, 1969 - 15 pages Sixteen years of outdoor weathering of laboratory-prepared smooth-surface and mineral-surfaced, felt-base roofing specimens has provided information on the effects of mineral additives on the durability of coating-grade roofing 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. The mineral-surfaced specimens are all performing satisfactorily, and show only minor degrees of degradation. Of the smooth-surfaced specimens, the Mid-Continent asphalt performed the best and the California asphalt the poorest. 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 others. In general, these early results from outdoor exposure tend to corroborate the results obtained on these coatings exposed in weatherometers. (Author). |
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Sidney H. Greenfeld. STATES NT OF ERCE TION BUILDING SCIENCE SERIES 24 COMMERCE Architectural Library TH 7 u 58 no . 24 ARTMENT OF COMMERCE BUREAU OF STANDAR Natural Weathering of Mineral ... Building Science Series The " Building Science.
Sidney H. Greenfeld. STATES NT OF ERCE TION BUILDING SCIENCE SERIES 24 COMMERCE Architectural Library TH 7 u 58 no . 24 ARTMENT OF COMMERCE BUREAU OF STANDAR Natural Weathering of Mineral ... Building Science Series The " Building Science.
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Sidney H. Greenfeld. Announcing - The Building Science Series The " Building Science Series " disseminates technical information developed at the Bureau on building materials , components , systems , and whole structures . The series ...
Sidney H. Greenfeld. Announcing - The Building Science Series The " Building Science Series " disseminates technical information developed at the Bureau on building materials , components , systems , and whole structures . The series ...
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... Building Science Series 24 Nat . Bur . Stand . ( U.S. ) , Bldg . Sci . Ser . 24 , 17 pages ( October 1969 ) CODEN : BSSNB Issued October 1969 For sale by the Superintendent of Documents , U.S. Government Printing Office Washington ...
... Building Science Series 24 Nat . Bur . Stand . ( U.S. ) , Bldg . Sci . Ser . 24 , 17 pages ( October 1969 ) CODEN : BSSNB Issued October 1969 For sale by the Superintendent of Documents , U.S. Government Printing Office Washington ...
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... to be issued in the series : National Bureau of Standards Building Science Series . Name Company Address City State Zip Code ( Notification key N - 339 ) NATIONAL BUREAU OF STANDARDS The National Bureau of Standards was.
... to be issued in the series : National Bureau of Standards Building Science Series . Name Company Address City State Zip Code ( Notification key N - 339 ) NATIONAL BUREAU OF STANDARDS The National Bureau of Standards was.
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Sidney H. Greenfeld. Form 8543 To renew the charge , book must be brought to the desk . DATE DUE Architecture TH 7 Building science series U58 no.24 asphalt coatings UNIVERSITY OF MICHIGAN 3 9015 03196 1579.
Sidney H. Greenfeld. Form 8543 To renew the charge , book must be brought to the desk . DATE DUE Architecture TH 7 Building science series U58 no.24 asphalt coatings UNIVERSITY OF MICHIGAN 3 9015 03196 1579.
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