Oxidation (Durability) Tests on Asphalts Used by the Texas Highway Department
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1963-07-01
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Edition:June 1, 1962 to June 1, 1963
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Abstract:The objective of this research was to establish specifications to assure use of superior asphalts by the Texas Highway Department. EXPERIMENTAL: Viscosities were determined for (a) 9 asphalts (150-200 penetration) obtained in 1959, (b) 24 asphalts (85-100 penetration) obtained in 1962, (c) 18 asphalts· (120-150 penetration) obtained in 1962, and (d) 9 asphalts (150-200 penetration) obtained in 1962. Viscosities at 77°'F were measured in the thin film (Hallikainen) viscometer, and those at 140° and 27 5° F were measured in the Cannon-Manning vacuum type capillary tube viscometer.
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