1. American Society for Testing and Materials (ASTM C1252-06). Standard Test Methods for Uncompacted Void Content of Fine Aggregate (as Influenced by Particle Shape, Surface Texture, and Grading).
2. American Society for Testing and Materials (ASTM C127-07). Standard Test Method for Density, Relative Density (Specific Gravity), and Absorption of Coarse Aggregate.
3. American Society for Testing and Materials (ASTM C128-07a). Standard Test Method for Density, Relative Density (Specific Gravity), and Absorption of Fine Aggregate.
4. American Society for Testing and Materials (ASTM D1556-07). Standard Test Method for Density and Unit Weight of Soil in Place by the Sand-Cone Method.
5. American Society for Testing and Materials (ASTM D1856-09). Standard Test Method for Recovery of Asphalt from Solution by Abson Method.