What is the Bulkage of sand?

What is the Bulkage of sand?

As per IS2386-3 Bulking in Sand, Presence of 4% of moisture content in sand increases 25% of its volume….BULKING OF SAND:-

What is cement Bulkage?

In simplified terms, it can be said that bulking of sand is simply the looseness of soil without compacting. Usually, water reduces the pores in sand and compacts the sand. Sand is used in concrete for reduction of segregation and fill out the pores between cement and coarse aggregates.

What is maximum bulking of sand?

The increase in the volume of sand due to an increase in moisture content is known as the bulking of sand. A film of water is created around the sand particles which forces the particles to get aside from each other and thus the volume is increased. Bulking of sand is maximum at 4.6 % moisture content.

What is the maximum percentage of silt allowed in sand to be used in concrete?

8%
The maximum quantity of silt in sand shall not exceed 8%.

What is meant by M sand?

Manufactured sand (M-Sand) is artificial sand produced from crushing hard stones into small sand sized angular shaped particles, washed and finely graded to be used as construction aggregate. It is a superior alternative to River Sand for construction purpose.

How do you test for Bulkage of sand?

Procedure

1. Pour the sand into 250 ml measuring cylinder up to the 200 ml mark.
2. Fill the cylinder with water and stir well (sufficient water should be poured to submerge the sand completely and it can be seen that the sand surface is now below its original level)
3. Take the reading at the sand surface (Y ml)

Which compound gives the Colour to the cement?

5. Which compound gives the colour to the cement? Explanation: Iron oxide pigments are in the form of particles ranging approximately from 0.1 to 1.0 micron.

How do you calculate bulking of sand in a field?

2. Field Test for Bulking of Sand

1. Pour the sand into 250 ml measuring cylinder up to the 200 ml mark.
2. Fill the cylinder with water and stir well (sufficient water should be poured to submerge the sand completely and it can be seen that the sand surface is now below its original level)

What is value of fine sand?

Value of fineness Modulus of Sand

What happens if silt content is very high?

Test results indicate a decrease in durability when the ratio of silt content to fine aggregate exceeds 5%. The compressive strength, however, when silt fine content is small than 5%, increases only 1 MPa. But decreases from 3 MPa to 5 MPa when the silt content increases from 7% to 9%.

What is the bulkage of sand in concrete?

At 20% moisture, Bulkage is 0. Take a 250ml measuring cylinder, pour sand up to 200ml. Fill it with water such that the sand is completely immersed. Stir the sand well and shake the cylinder thoroughly. Allow it to settle for some time.

How does bulking affect the strength of concrete?

In the case of proportioning by volume, bulking results in a smaller weight of sand occupying the fixed volume of the measuring box, and the mix becomes deficient in the sand and the resulting concrete becomes honeycombed and its strength is reduced. The extent of the bulkage depends upon the percentage of moisture present in sand and its fineness.

How to calculate the amount of cement and sand needed for plastering?

Amount of plaster mortar required for plastering 100 sq.ft. (10 sq.mtr) area of 12 mm thickness Thus to do 100 sq.ft.plaster (12mm thick) with 1:4 proportion, the individual material required are Cement needed would be = (50/0.153)x 0.12 = 39.21 kgs. or 0.784 bags Bulkage of Sand is not taken into account.

Is the correct order of bulkage of sand?

The correction to be made is only a rough approximation because the system of measurement by loose volume is a rough method at the best, but a correction of the right order can easily be determined and should be applied in order to keep the concrete uniform. From IS Code 2386 part 3 Page: 14 Cl 4.2