

Abstract
- We were asked by Victor Johnson with Geneva Rock to create a model within their existing spreadsheet to predict the voidsin mineral aggregate (VMA) of any givenasphalt mix design.
- UDOT and City specifications require a specific VMAfor all asphalt designs.
- Having an accurate predictive modelcould saveGeneva Rock25% on the cost of a mix design
- The 0.45 power curve plots the cumulative percent passing of an aggregate vs the sieve opening size to the0.45 power