Question

In quality control test of highway project, the following data was collected as shown below.

Bulk specific gravity of compacted mix is 2.30, Bulk specific gravity of aggregate = 2.75,

The percentage of bitumen absorption is 0.45%, the percentage of binder by mass= 5.5%,

Bitumen specific gravity = 1.05, answer the following question:

(a) What is the percentage of Air voids in the compacted mix?

(b) Aggregate effective specific gravity?

(c) Asphalt mix maximum specific gravity?

(d) Effective binder content?

(e) Percentage of Voids in mineral aggregates?

(f) Percentage voids filled with bitumen?

(g) This mix is likely to be _______?

(Well performing mix, Will show bleeding, Will show Rutting, will show traveling and potholes)

Answer 1