Natural Weathering of Mineral Stabilized Asphalt Coatings on Organic Felt |
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Page 3
2.94 1.0 29.5 32.7 2.1 5.4 0.2 0.00 0.00 2.62 2.0 30.0 33.8 4.9 7.3 0.4 5.90 Specific gravity ? Surface area ' Oil absorption Water absorption Loss on ignition at 1000 ° F Loss on ignition at 1800 ° F Moisture Solubility Free alkali 5 .
2.94 1.0 29.5 32.7 2.1 5.4 0.2 0.00 0.00 2.62 2.0 30.0 33.8 4.9 7.3 0.4 5.90 Specific gravity ? Surface area ' Oil absorption Water absorption Loss on ignition at 1000 ° F Loss on ignition at 1800 ° F Moisture Solubility Free alkali 5 .
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Susceptibility : Loss on heating , Penetration at 77 ° F ( 25 ° C ) after heating . 0.1 Specific gravity at 77 ° F ( 25 ° C ) Viscosity , cP at 400 ° F • ( 204 ° C ) Viscosity , cP at 450 ° F ( 232 ° C ) Viscosity , cPat 500 ° F ( 260 ...
Susceptibility : Loss on heating , Penetration at 77 ° F ( 25 ° C ) after heating . 0.1 Specific gravity at 77 ° F ( 25 ° C ) Viscosity , cP at 400 ° F • ( 204 ° C ) Viscosity , cP at 450 ° F ( 232 ° C ) Viscosity , cPat 500 ° F ( 260 ...
Page 5
30 percent pigment loss . 80 percent . 6 lb / ton : ( 3 g / kg ) . Particle Size ( Tyler ) Percent Sieve No. --- Retained on 10 Retained on 14 Retained on 20 Retained on 28 Retained on 35 Passing 35 0.7 33.9 36.0 21.6 7.2 0.5 Granules ...
30 percent pigment loss . 80 percent . 6 lb / ton : ( 3 g / kg ) . Particle Size ( Tyler ) Percent Sieve No. --- Retained on 10 Retained on 14 Retained on 20 Retained on 28 Retained on 35 Passing 35 0.7 33.9 36.0 21.6 7.2 0.5 Granules ...
Page 7
Changes observed early in the exposure period consisted of small losses of granules in most of the specimens and heavier losses of granules in the few specimens in which poor granule adhesion was measured prior to exposure .
Changes observed early in the exposure period consisted of small losses of granules in most of the specimens and heavier losses of granules in the few specimens in which poor granule adhesion was measured prior to exposure .
Page 10
As recommended in the procedure , the average weight loss for 10 2- X 10 - in specimens when abraded dry must be in the ... Both sets of specimens were exposed and both experienced large losses of granules early during their exposure .
As recommended in the procedure , the average weight loss for 10 2- X 10 - in specimens when abraded dry must be in the ... Both sets of specimens were exposed and both experienced large losses of granules early during their exposure .
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60 percent aluminum aluminum-base specimens appearance Applied 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 Composition Coating thickness 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 heated industry instances Institute Loss on ignition losses machine materials measurement method Mica Mid-Continent asphalt mils mineral additives Months Ratio Months National Bureau observed Office panel passed performances period physical prepared produced Properties provides Ratio Months Ratio reference reported Research Retained rolls roofing saturated felt sheets shingle Silica smooth smooth-surface smooth-surface specimens spalling surface tabs technical Technology temperature tests three asphalts type of specimen Venezuela asphalt Washington weather