To Determine the Particle Size Distribution of Fine Aggregates by Sieve Analysis Method and to determine the Fineness Modulus of Fine Aggregates.
Introduction
Many natural and manufactured materials occur in dispersed form, which means that they consist of differently shaped and sized particles. The particle size distribution, i.e. the number of particles of different sizes, is responsible for important physical and chemical properties.
Apparatus Required:
- Mechanical Sieve Shaker, Bowls, Weighing Machine
Material Required:
- Fine Aggregate
Procedure:
Pre-Cautions:
- Use oven-dried bricks.
- The temperature of the oven should be 105-110°C.
- Room Temperature should be 20-30°C
Observations:
SR: # | Sieve # | Wt.:retained “gm” | Cumulative wt: Passing | Cumulative percentage wt: retained | Cumulative wt: Passing |
01 | 4.75 mm | ||||
02 | 2.36 mm | ||||
03 | 1.18 mm | ||||
04 | 600 µm | ||||
05 | 250 µm | ||||
06 | 150 µm | ||||
07 | PAN |
Results:
The Fineness Modulus of the given fine aggregates is given out as
Review Questions:
- What do you understand by the term “Analysis”?
- Define the importance of this test in the field.
