Optimum Asphalt Binder Content
EasyasphaltMarshall mix design
Maximum stability occurs at 5.2% binder, maximum bulk density at 5.0%, and 4% air voids at 4.8%. Averaging these, the optimum binder content is:
- A5.0%
- B4.8%
- C5.2%
- D15.0%
Show solutionHide solution
Answer: A. 5.0%
The Marshall optimum is the average of the three binder contents: (5.2 + 5.0 + 4.8)/3 = 5.0%. Adding them without dividing gives 15%.
Practice this deckUntimed, one problem at a time, with your progress saved.
Related problems
- Percent Air Voids in Asphalt Mix · Construction Materials
- VMA of an Asphalt Mixture · Construction Materials
- Water-Cement Ratio of a Concrete Mix · Construction Materials