Civil Engineering - Concrete Technology - Discussion

Discussion Forum : Concrete Technology - Section 2 (Q.No. 6)
6.
1.S. Sieve Nos. 10 mm and 4.75 mm are geneally used for grading of
coarse aggregates
fine aggregates
neither (a) nor (b)
both (a) and (b)
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
16 comments Page 1 of 2.

Guru said:   2 years ago
Here, fine aggregates can also sieve along with course aggregates.

It is possible then sived with< 4.75 size sives.
(2)

Saurabh sharma said:   4 years ago
As per IS 383:2016 ...grading of aggregates.

Course agg:- 80mm 63mm 40mm 20mm 16mm 12.5mm 10mm 4.75mm 2.36mm.

Fine agg:- 10mm 4.75mm 2.36mm 1.18mm 600 micron 300 micron 150 micron.

For Fineness modulus:

Course aag:- 80mm 40mm 20mm 10mm 4.75mm 2.36mm 1.18mm 600mic 300mic 150mic.

Fine agg:- 4.75mm 2.36mm 1.18mm 600mic 300mic 150mic.
(1)

Aaqib farooq said:   5 years ago
The answer is correct because aggregate which is retained on 4.75mm sieve are called coarse aggregate and aggregate which passes through the 4.75mm sieve is called fine aggregate so the answer is correct.

Ankit said:   5 years ago
0.075 - 4.75 mm Fine aggregate.
4.75 - 75 mm Coarse aggregate.
> 75 mm cyclone aggregate.

Kasim Ali said:   5 years ago
Coarse aggregates is the right answer.

Cyclone aggregates more than 75mm.

Blackskin Head said:   6 years ago
Greater than 4.75 mm - coarse and else fine.
Datum is 4.75. So both.

Shams said:   7 years ago
In which category 4.75 mm of aggregate placed?
Fine or coarse?

Please explain.
(1)

Kundan nunia said:   7 years ago
Course aggregate is the only correct answer.
(1)

Maha said:   8 years ago
@ALL.

As give IS sieve no 10 and 4.75 mm it means #10 is 2 mm size which is used for fine aggregate and 4.75 used both fine and coarse aggregate.

Adhi said:   9 years ago
Answer is correct.

Because 4.75 is sieve acts as a mediator,

In 4.75 sieve, all coarse aggregates gets retained, while all fines get collected in the pan.


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