A bitumen concrete mix has average specific gravity of material as 2,32 and the theoretical specific gravity as 2,42, The density of bitumen used is 1,03 gm/cc with 4,5% bitumen content by weight in the mix, Determine VFB in%?

A bitumen concrete mix has average specific gravity of material as 2,32 and the theoretical specific gravity as 2,42, The density of bitumen used is 1,03 gm/cc with 4,5% bitumen content by weight in the mix, Determine VFB in%?

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter18: Bituminous Materials

Section: Chapter Questions

Problem 12P

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Concept explainers

Design of pavements

Pavement is a structure that is made up of different layers such as sub-base course layer, base course layer, binder course, and a surface course formed with different materials such as gravel, above the subgrade soil constructed to act as a path or carriageway enabling the movement of vehicles. The surface of the pavement should possess characteristics such as adequate friction, light reflection, and drainage. The pavements are classified based on structural design into rigid pavements, flexible pavements, composite pavements, and unpaved pavements. The process of determining a suitable pavement type, its constituent layers, and its thickness is called pavement design.

Question

Highway Engineering

A bitumen concrete mix has average
specific gravity of material as 2,32
and the theoretical specific gravity as
2,42, The density of bitumen used is
1,03 gm/cc with 4,5% bitumen content
by weight in the mix. Determine VFB
in%?

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