1. Designation: T307–99: Standard Method of Test for Determining the Resilient Modulus of Soils and Aggregate Materials;AASHTO,2007
2. Designation M145–91: Classification of Soil and Soil-Aggregate Mixtures for Highway Construction Purpose;AASHTO,2012
3. Guide for Mechanistic - Empirical Design of new and Rehabilitated Pavement Structures. Final Report, NCHRP Project;ARA, Inc., ERES Consultants Division,2004
4. Designation: D2487–11: Standard Practice for Classification of Soils for Engineering Purposes (Unified Soil Classification System);ASTM,2011
5. Designation: D698-12: Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Standard Effort (12400 ft-lbf/ft3 (600 kN-M/m3));ASTM,2012