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SAND STANDARD SPECIFICATIONS FOR FOR SHEET ASPHALT AND BITUMINOUS CONCRETE PAVEMENTS1 A.S.T.M.Designation: D 162-29 These specifications are issued under the fixed designation D 162; the final number indicates the year of original adoption as standard or, in the case of revision, the year of last revision ISSUED AS TENTATIVE, 1923; ADOPTED, 1929 Scope, 1 These specifications cover sand for use in the construction of the surface course of sheet asphalt pavements and those types of Physical bituminous concrete pavements in which sand predominates Properties 2 The grains of the sand shall be clean, tough, rough-surfaced and angular The sand after drying shall be free from lumps or balls of clay or of clay and sand Before being incorporated into the paving mixture it shall conform to the following requirements as to grading: Passing No 200 sieve 0 to 5 per cent 25 " } 25 15 to 40 per cent Passing No 100 sieve, retained on No 200 6 to Passing No 80 sieve, retained on No 100 6 to Passing No 50 sieve, retained on No 80 5 to 40 " } 30 to 60 Passing No 40 sieve, retained on No 50 5 to 30 Passing No 30 sieve, retained on No 40 8 to 25 " ) 18 to 50 Passing No 20 sieve, retained on No 30 5 to 15 Passing No 10 sieve, retained on No 20 5 to 15 Passing No 10 sieve 95 to 100 Passing !-in screen 100 Methods ol 3 General Clzaracteristics. The general characteristics shall be Testing determined by examination under a microscope or a magnifying glass Sampling 4 2vleclwnical Analysis.-The tests for the mechanical analysis shall be made in accordance with the Standard Method of Mechanical Analysis of Sand or Other Fine Highway Material, Except Fine Aggre- gates Used in Cement Concrete (A.S.T.M Designation: D 7) of the American Society for Testing Materials.2 5 The method of sampling shall conform to the Standard Methods of Sampling Stone, Slag, Gravel, Sand and Stone Block for Use as Highway Materials, Including Some Material Survey Methods (A.S.T.M Designation: D 75) of the American Society for Testing Materials.3 1Under the standardization procedure of the Society, these specifications are under the ju risdic- tion of the A.S.T.M Committee D-4 on Road and Paving Materials 'Sec p 628 'Seep 622 (594)