The aggregates are graded as fine and coarse aggregate based on the grain size. When the aggregate size is greater than 4.75mm is called coarse aggregate, and less than 4.75mm is called fine aggregate.
The sieve analysis test will do the grading of aggregates.
A test used to determine the particle size of fine and coarse aggregates is known as the sieve analysis test.
Collected sample aggregates are thoroughly sieved through appropriate IS Sieve to determine the particle size.
Well, concrete bonding will not happen when the same size of aggregates has been used in concrete, and it reduces the strength of the concrete.
Sieve Analysis test helps.
The sieve analysis test has been carried out either by the mechanical, manual, or electrical method as per IS code 2386 Part 1.
The weight of sample aggregates is taken as per the below table. The sample should be clean and dried at 100°C to 110°C in the oven.
SI | Maximum size of material present in substantial quantities | Weight to be taken for test in Kgs |
1 | 75mm | 60Kg |
2 | 40mm | 25Kg |
3 | 25mm | 13Kg |
4 | 19mm | 6.5Kg |
5 | 12.5mm | 3.5Kg |
6 | 10mm | 1.5Kg |
7 | 6.5mm | 0.75Kg |
8 | 4.75mm | 0.4Kg |
Fine aggregates
Coarse aggregates
Size of IS Sieve | Weight of Aggregate retained in Sieve | Retained sample in Percentage | Cumulative Percentage | Percent Passing | |||
I | II | III | Avg | ||||
D4 | |||||||
D10 | |||||||
D20 | |||||||
D40 |
Happy Learning 🙂
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Lovely and well highlited
Good job.....
Now and later your new member who is on the track of learning more
Thanks brother you are doing a great job,
keep on doing it and for sure you will achieve great success in life
one more explanation about this please, wanna see it soon
Theory procedure is very simple method and understood easily
Request you please do more vedios in civil engineering subjects
Thank you