ABSTRACT

The spatial distribution of material quality and geotechnical properties in commercial sand and gravel deposits have been little studied. Better understanding of their character, as well as investigation of potential cross-correlation, could aid in aggregate mine accounting and planning. This paper describes a strategy toward the development of a correlation between d3/8” (cumulative percent passing through a 3/8” mesh) and in situ density. Use of the resulting relationship will be used to track changes in in-situ density via changes in d3/8”, which is a quality measure routinely obtained by mine Quality Control staff. This understanding of changes in density is necessary for proper accounting of royalty payments. Further investigations could correlate such routinely derived size distribution parameters with vital aggregate quality measures, such as Los Angeles Abrasion, thereby assisting in mine planning.