AF2903 Road Construction and Maintenance Volumetric Analysis of ...

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Effective Asphalt Content The effective asphalt content is the total asphalt content minus the percent lost to absorption. P be = P b - P ba 100 P s P be = 5.5 - 1.32 100 x 95 P be = 5.5 - 1.24 = 4.26 % Guarin@kth.se
Factors That affect <strong>Volumetric</strong>s <strong>of</strong> HMA Guarin@kth.se Asphalt viscosity Mix temperature Time held at elevated temperature When V mm decreases, G mm increases Affects calculations: • G se • Percent binder absorbed • Calculated maximum specific gravity • Air voids
Page 1 and 2: AF2903 Road Construction and Mainte
Page 3 and 4: Volumetric Relationships V a VMA Ai
Page 5 and 6: Basic Terms (cont.) Mass (P) or Vol
Page 7 and 8: Bulk Specific Gravity AC mixed with
Page 9 and 10: Gmb Procedure Obtain mass of dry co
Page 11 and 12: Maximum Specific Gravity (Gmm) Loos
Page 13 and 14: Gmm Calculation G mm = A / ( A - C
Page 15 and 16: Effective Specific Gravity Surface
Page 17 and 18: Voids in Mineral Aggregate VMA is a
Page 19: Percent Binder Absorbed P ba is the
Page 23 and 24: Guarin@kth.se Example Problem
Page 25 and 26: Example Problem Let’s also assume
Page 27 and 28: Example Problem - Answers Guarin@kt
Page 29 and 30: Example Problem - Answers Percent A
Page 31 and 32: Example Problem - Answers Percent V
Page 33 and 34: Example Problem - Answers Percent V
Page 35: Guarin@kth.se Questions

AF2903 Road Construction and Maintenance Volumetric Analysis of ...

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