BULKING OF SAND TEST

 BULKING OF SAND TEST

AIM:

 §  This procedure covers the test method for the determination of the approximate volumes occupied by sand in a damp condition and when saturate.

§  This method of test covers the field method for determining the necessary adjustment for the bulking of fine aggregate.

APPARATUS REQUIRED:

1. Measuring jar  250ml

2.     Potable Water

SAMPLE:

The cement taken should be finely ground material which of addition of requisite quantity of water is capable of hardening both under water and in air by the chemical interaction of its constituents with water and capable of binding together the appropriate materials. (Reference IS: 3535 - 1986)

PROCEDURE:

1. In a 250ml measuring jar pour the sand until it reaches the 200ml 

2. Then fill the cylinder with water and stir the sand well (The water shall be sufficient to submerge the sand completely)

3. Now the sand surfaces will be below its original level

4. Then note the level of sand as "y"

OBSERVATION:

Sl. No.	Particulars	Volume in (ml)		Remarks
		Trial I	Trial II
1	Level Of Top Surface of Material (Sand) = H1 (ml)	200	200
2	Water Added + Level of top surface of sand Layer = H2 (ml)	190	195
3	BULKING OF SAND X  =  (H1 - H2)  =	10	5
4	%  of Bulking Of Sand  = (X / H2  )* 100  or (H1/H2) -1 *100	5.26	2.56
5	Average Bulking of Sand in %	3.91

CALCULATION:

Percentage of bulking of sand = ((200/y)-1) x 100

NOTE:

Acceptable Value – Bulking of sand value should not be more than 10% 

REFERENCE:

IS: 2386 (PART 3) – 1963.