Determination of specific gravity of soil

1. WELCOME TO OUR PRESENTATION
Submitted To
Dr. Md. Abu Taiyab
Prof. Dept. Of CE.
Mr. Md . Ariful Islam
Lecturer, Dept. of CE.
Prepared By
MD. Parvej
ID: 131046
CE-3/2
SEC A
DEPARTMENT OF CIVIL ENGINEERING.
DHAKA UNIVERSITY OF ENGINEERING & TECHNOLOGY ,GAZIPUR.

2. DETERMINATION OF
SPECIFIC GRAVITY OF SOIL
COURSE NO. CE -3302
GEOTECHNINICAL ENGINEERING
-I SESSIONAL

3. Objectives
 ASTM D-854-00 Test Method for Specific Gravity of Soil
Solids by Pycnometer
Test Specification
This test is performed to determine the Specific
gravity of soil by Pycnometer Method.

4. Specific Gravity of Soil by Pycnometer Method
The Pycnometer is used for determination of the specific gravity
of soil particles of both fine grained and coarse grained soils.
The specific gravity of soil is determined using the relation:
Where M1=mass of empty Pycnometer,
M2= mass of the Pycnometer with dry soil
M3= mass of the Pycnometer and soil and water,
M4 = mass of Pycnometer filled with water only.
G= Specific gravity of soils.
X Gt

5. The procedure we have followed
DEMO FIG: Specific Gravity of Soil by Pycnometer Test

6. Air void removing

7. Sl. No. Observations an Calculations
Determination No.
1 2 3
Observation
1 Pycnometer No. 50 45 123
2 Room Temperature 27 27 27
3 Mass of empty Pycnometer (M1) 18.57 18.50 18.62
4 Mass of Pycnometer and dry soil (M2) 28.57 28.50 28.62
5 Mass of Pycnometer, soil and water (M3) 90.88 90.20 91.02
6 Mass of Pycnometer and water (M4) 84.74 84.00 84.83
7 Sp. Gravity of water at room temp., Gt .99 .99 .99
Calculations
8 M2 – M1 10 10 10
9 M3 – M4 6.14 6.20 6.20
10 Calculate G using formula 2.45 2.46 2.45
Table: Observations and calculations for Specific Gravity of Soil:

8. Specific gravity of soil at 270C = 2.45
Results of Pycnometer Test:

9. &
DO YOU HAVE ANY QUESTION????
THANK YOU