AF2903 Road Construction and Maintenance Volumetric Analysis of ...

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Example Problem Based on the information given for this problem, the following parameters should be calculated: Bulk Specific Gravity of the combined aggregate Effective Specific Gravity of the aggregate Percent Absorbed Asphalt for the Mixture Percent Effective Asphalt For the Mixture Percent Voids in Total Mix for the Mixture Percent Voids in Mineral Aggregate for the Mixture Percent Voids Filled with Asphalt for the Mixture Guarin@kth.se
Example Problem - Answers Guarin@kth.se Bulk Specific Gravity of the Combined Aggregate - G sb G sb = ( P A + P B + P C ) P A P B P + + C G A G B G C Based on the information given: P A = 50% P B = 25% P C = 25% G A = 2.695 G B = 2.611 G C = 2.655 G sb = ( 50+ 25 + 25 ) 50 25 25 + + 2.695 2.611 2.655 Where: P A , P B & P C = percent by mass of each aggregate in blend G A , G B & G C = Bulk Specific Gravity of each aggregate = 2.663
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 and 20: Percent Binder Absorbed P ba is the
Page 21 and 22: Factors That affect Volumetrics of
Page 23 and 24: Guarin@kth.se Example Problem
Page 25: Example Problem Let’s also assume
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

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