- The grains should be sharp, angular and coarse.
- The sand should be free from clay material and organic matters.
- The grains should be of durable minerals.
- It should be free from salts.
- The gradation of grains size should be such as that it will give minimum voids.
- It should be clean and free from coatings of clay and silt.
- It should not contain organic matter.
- It should be chemically.
- Sand is loose particles of hard broken rock, it comprises of grains from the disintegrated rock.
- Sand should be such size that it should pass through I.S. sieve No.-480 [4.75mm]and should retain on I.S. No-5[0.05mm] as per Indian standards[I.S]
Good sand
