Theoretical Maximum Specific Gravity of Asphalt Paving Mixtures PRITHVI S KANDHAL AND MAQBOOL A KHATRI The Rice method ASTM D2041 is used for determining the theoretical maximum specific gravity of asphalt paving mixtures which is one of the main test parameters used for mix design and construction quality control
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— This test method covers the determination of bulk specific gravity and density of specimens of compacted asphalt mixtures This test method should not be used with samples that contain open or interconnecting voids or absorb more than % of water by volume or both as determined in
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— Aggregate Blending Absorption & Specific Gravity 6 Effective volume = volume of solid aggregate particle volume of surface voids not filled with asphalt G se = Effective Specific Gravity G se Effective Volume Absorbed asphalt Vol of water perm voids not filled with asphalt Surface Voids Mass dry Solid Agg Particle
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— b = Specific Gravity of Binder = P b = Percent Asphalt Content in Mix G se = Effective Specific Gravity of the Aggregate Mixture G sb = Bulk Specific Gravity of the Aggregate Mixture Example Calculation G b = P b = % G se = G sb = 𝑃𝑃 𝑠𝑠 =𝑏𝑏 × 100 − × − 2
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This test method covers the laboratory determination using a glass hydrometer of the density specific gravity or API gravity of cutback asphalts as defined in Specifications D2026 D2027 and D2028 Note 1 Keywords API gravity; cutback asphalt; density; relative density; specific gravity ASTM D3142 Accredited Laboratory
— The ratio of asphalt binder to aggregate Usually expressed in terms of percent asphalt binder by total weight of HMA or total weight of aggregate this ratio has a profound effect on HMA pavement performance Because of the wide differences in aggregate specific gravity the proportion of asphalt binder expressed as a percentage of
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AASHTO T295 Full Name AASHTO T295 Standard Method of Test for Specific Gravity or API Gravity of Liquid Asphalts by Hydrometer Method Scope This test method covers the determination of the density of cutback asphalts using a glass hydrometer
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The combined RAP aggregate specific gravity is then calculated RAP Specific Gravity Method 2 The maximum theoretical specific gravity Rice method of the RAP is determined Next using the known asphalt binder content the effective specific gravity of the RAP is calculated Then this effective gravity is substituted for the bulk gravity to
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Simply specific gravity defines whether an object will sink or float in water Specific gravity is used to define the density of a liquid as compared to the density of an equal volume of water at a specified temperature The specific gravity has no unit because the units of the numerator and the denominator are the same
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Theoretical maximum specific gravity; Asphalt content/gradation; Bulk Specific Gravity Bulk specific gravity is essentially the density of a compacted laboratory or field HMA specimen The bulk specific gravity is a critical HMA characteristic because it is used to calculate most other HMA parameters including air voids VMA and TMD
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— Standard Method of Test for Specific Gravity of Semi Solid Asphalt Materials This test method covers the determination of the relative density and density of semi solid bituminous materials asphalt cements and soft tar pitches by use of a pycnometer
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— 𝑚𝑚 = Theoretical maximum specific gravity of the bituminous mix 𝑚 = Bulk specific gravity of the compacted bituminous mix = Percentage air voids in the compacted mix It is mandatory to ensure that air voids in the compacted bituminous mix fall within a recommended range This check is applied due to the following reasons
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— scope This method of test covers the determination of bulk specific gravity G mb of specimens of compacted asphalt method should not be used with samples that contain open or interconnecting voids or absorb more than percent of water by volume as determined in Sections or herein
— ASPHALT TECHNICIAN REVIEW 8 00 to 2 30 Intro • ATTI •etySaf •Rounding Procedure Thursday ARIZ 427 Asphalt Content by Ignition Furnace ARIZ 406 Moisture Content of Bituminous Mixtures ARIZ 417 Rice Test ARIZ 410 Marshalls ARIZ 415 Bulk Specific Gravity of Compacted Bituminous Mixtures ARIZ 424 Voids Calculations
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