FORMAT NO.
IRCON/KM/QC/22
KHULNA MONGLA PORT LINE PROJEC, BANGLADESH
(PACKAGE NO. WD1)
CLIENT :BANGLADESH RAILWAY REV. NO RO
CONSULTANT
:JV CONSULTING ENGINEERS GROUP & NIPPON KOEL (I)PVT DATE OF REV 11/1/2017
LIMITED
CONTRACTOR :IRCON INTERNATIONAL LIMITED PAGE 1 OF 1
Co-efficient of uniformities (cu) & Co-efficient of Curvature (cc)
As per Specification Table 2.5.2.2
Sample ID PKG - 8
Blanket Material (Gravel 50 % + Sylhet Sand 50
Description of Materials: %)
Location : Stack Yard
Date of Sampling 8/6/2019 Sylhet Sand (Sylhet Bangladesh)
Source: Gravel (Sylhet Bangladesh)
Date of Testing : 8/7/2019
Sample Collection Jointly by Ircon ( Mr.Bipin kumar DM/C) & Consultant (Mr. Ripon ahmed W.I )
Sieve Sylhet Sand % Cumulative Specified Limit B
Size Gravel % Passing Passing Dredged Sand % Passing % Passing
mm Lower Limit Upper Limit
40.00 100.0 100.0 100.0 100.0 100 100
20.00 90.4 100.0 0 94.7 80 100
10.00 64.1 99.6 0.0 80.1 63 85
4.75 38.3 98.2 0.0 65.3 42 68
2.00 19.2 91.6 0.0 51.8 27 52
0.6 5.8 48.3 0.0 24.9 13 35
0.425 4.5 35.5 0.0 18.5 10 32
0.212 2.1 6.7 0.0 4.2 6 22
0.075 0.8 2.3 0.0 1.5 3 10
Pan
100 100.0
94.7
90
80 80.1
70
65.3
60
% Passing
50 51.8
40
30 ENVELOPING CURVES
24.9
20 18.5
10
4.2
0 1.5 1 1 1
0.05 0.50 5.00 50.00
Sieve Size (mm)
Remarks:
D60 = 3.300 Cu = 11.8
D30 = 0.800 Cc = 0.7
D10 = 0.280
As per clause no. 2.5.2.2 Technical Specification
Cu > 7 and Cc between 1 and 3.
Fines (Passing 75 microns ) 3 % to 10 %
Signature Signature Signature
Lab.Engg.QC DGM/QC Consultant
IRCON IRCON Representative
FORMAT NO. IRCON/KM/QC/22
KHULNA MONGLA PORT LINE PROJEC, BANGLADESH
(PACKAGE NO. WD1)
CLIENT :BANGLADESH RAILWAY REV. NO RO
CONSULTANT
:JV CONSULTING ENGINEERS GROUP & NIPPON KOEL (I)PVT DATE OF REV 11/1/2017
LIMITED
CONTRACTOR :IRCON INTERNATIONAL LIMITED PAGE 1 OF 1
Co-efficient of uniformities (cu) & Co-efficient of Curvature (cc)
As per Specification Table 2.5.2.2
Sample ID PKG - 8
Blanket Material (Gravel 55 % + Sylhet Sand 45
Description of Materials: %)
Location : Stack Yard
Date of Sampling 7/31/2019 Sylhet Sand (Sylhet Bangladesh)
Source: Gravel (Sylhet Bangladesh)
Date of Testing : 8/1/2019
Sample Collection Jointly by Ircon ( Mr.Bipin kumar DM/C) & Consultant (Mr. Ripon ahmed W.I )
Sieve Sylhet Sand % Cumulative Specified Limit B
Size Gravel % Passing Passing Dredged Sand % Passing % Passing
mm Lower Limit Upper Limit
40.00 100.0 100.0 100.0 100.0 100 100
20.00 90.4 100.0 0 94.7 80 100
10.00 58.1 99.6 0.0 76.8 63 85
4.75 27.2 93.5 0.0 57.0 42 68
2.00 14.8 80.2 0.0 44.2 27 52
0.6 10.5 48.3 0.0 27.5 13 35
0.425 9.5 40.5 0.0 23.5 10 32
0.212 9.2 25.2 0.0 16.4 6 22
0.075 7.9 5.5 0.0 6.8 3 10
Pan
100 100.0
94.7
90
80
76.8
70
60
57.0
% Passing
50
44.2
40
30 ENVELOPING CURVES
27.5
23.5
20
16.4
10
6.8
0 1 1 1
0.05 0.50 5.00 50.00
Sieve Size (mm)
Remarks:
D60 = 5.300 Cu = 50.5
D30 = 0.800 Cc = 1.2
D10 = 0.105
As per clause no. 2.5.2.2 Technical Specification
Cu > 7 and Cc between 1 and 3.
Fines (Passing 75 microns ) 3 % to 10 %
Signature Signature Signature
Lab.Engr.QC JGM/QC Consultant
IRCON IRCON Representative
