Answer / shekhar

Yes,

The volume of dry sand increases due to absorption of moisture. These volume increase of dry sand is known as bulking of sand. When dry sand comes in contact with moisture, a thin film is formed around the particles, which causes them to get apart from each other. This results in increasing the volume of sand.

Bulking of sand totally depends on the moisture content and it increases with the increase of moisture. It has been found that 4% moisture content (by weight) of dry sand may increase its volume up to 25 – 30% depending upon the grading. Finer sand particles result in extreme bulking.
Further addition of water causes the film around the particles to break and thus the volume of sand get reduced. When the quantity of water in sand becomes more than 20 % or the sand is fully immersed in water its volume becomes the same as that of dry sand.

The percentage of bulking of sand can be easily calculated by following this field method.
1.Pour the sample of damp sand in a graduated glass cylinder of 250 ml capacity.
2.Consolidate the sand by shaking. When the sample is reached to 200 ml mark, fill the cylinder with water and stir well.
3.After stirring, the level of sand will be dropped below the 200 ml mark. Measure the height of submerged sand and mark it as “X” ml.
4.Now calculate the percentage of bulking of sand by given formula:

% Bulking = ( 200-X/X) * 100

what are all the new civil construction materials?what are the new concepts ?

2 Answers   Essar,

---

Give me an example of a time when something you tried to accomplish and failed.

0 Answers  

---

How do we say The LAP LENGHT is 50D to 60D ?????

3 Answers  

---

If concrete fails in cube strength as well as non distactive test? what to do? for example grade of concrete is M35, cube strength is 26.1 n/mm2 after 28 days and non districtive test strength is 28.1 n/mm2 after 28 days. i am not distroying the rcc memeber.

3 Answers  

---

Dear Engineers, Can you please advise me the material requirement to construct a room 4 M x 4 M 1. No. of Standard Brick 2. Requirement of Cement Bags 3. And Concrete for Steel, Cement, sand, etc Thanks

0 Answers  

---

---

What is a BBS?Find out the cutting length for a 300*300 column with 40 mm cover?

21 Answers   L&T, SSC,

---

Laying bitumen concrete 40mm thick using 0.1372 cum of 13.2 10mm metal ,0.2387 cum of 10 5mm metal...what did it means please explain me how much cum of 10 mm metal need?

0 Answers   Guru Tech,

---

plz send me civil q papers of hpcl

5 Answers   Shell,

---

it is possiblee to produce concrete with out cracks...

0 Answers  

---

what are the standard & nominal size of brick

8 Answers  

---

how to calculate shuttering measurement of beam and slab

3 Answers   NCCL,

---

What is mean by Engineers ?

3 Answers  

---