1. Sieve Analysis, Moisture Content & Clay Content Determination Presented By: Kamal Nayan Kumar Roll No: 7607

3. Used to assess Particle Size Distribution.

4. Gradation affects many properties like bulk density, physical stability and permeability.

5. Determined using Column Sieve Shaker.

7. A standard sieve set with varying mesh size is employed for measuring AFS GFN.

8. The coarsest sieve is at the top & the finest at the bottom.

9. The sample is placed at the top sieve.

14. Procedure

15. 50 gm of sample is taken.

16. The sample is dried in between 105 to 150oC.

18. Oven

19. Forced hot air circulation.

20. Infrared Lamp.

22. Clay when added with water gives optimum strength to sand.

25. 50 gm of dried sand sample is taken in beaker.

26. 475 ml of water and 25 ml standard solution of NaOH is added to it.

27. The solution is stirred for 5 minutes.

28. The solution is allowed to settle for 10 min.

29. Lighter particles will be floating & heavier particles will settle.

31. The process is repeated until pure water is obtained.

32. The remaining sand in the jar is filtered, dried & weighed.

33. The difference b/w this weight & origlnal weight gives the weight of clay

34. % AFS Clay Content = Difference Original Weight X 100

35. Thank you…