PROCEDURE FOR DETERMINING ROCK WEIGHTS, SIZES AND
17-WI-33 After the weight and “d” of each rock (except small rock, gravel) are determined, they need to be accumulated into sizes that would be held on a particular screen size such as 1.5 D50, D50, etc. The weights of the rocks that have a “d” greater than the screen size are accumulated andGradation Test - Pavement Interactive,A gradation that, when plotted on the 0.45 power gradation graph, falls mostly below the 0.45 power maximum density line. The term generally applies to dense graded aggregate. Fine aggregate (sometimes just referred to as “fines”). Defined by the Asphalt Institute (2001) as the fraction of aggregate passing the 2.36 mm (No. 8) sieve.Sieve analysis - Wikipedia,Gradation affects many properties of an aggregate, including bulk density, physical stability and permeability. With careful selection of the gradation, it is possible to achieve high bulk density, high physical stability, and low permeability. This is important because in pavement design, a workable, stable mix with resistance to water is important.