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Mix Design of DBM Grading-I: Project Name

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MIX DESIGN OF

DBM GRADING-I
Project Name :

Employer:

Engineer:

Contractor:

Rev. Date Prepared & Submitted by Approved by

www.qaqccivil.com

Tapas Kumar Sarkar Authority Engineer


CONTENTS

A DESIGN SUMMARY

B INDIVIDUAL GRADING OF HOT BIN AGGRIGATE


1> Aggregate Grading from Hot Bin-1
2> Aggregate Grading from Hot Bin-2
3> Aggregate Grading from Hot Bin-3
4> Aggregate Grading from Hot Bin-4

C BLENDING FOR JOB MIX FORMULA

D PERMISSIBLE LIMITS OF JOB MIX FORMULA

E COMBINED GRADING OF HOT BIN AGGREGATE AS PER LAB JMF


1> Plant Trial Sample No-1
2> Plant Trial Sample No-2
3> Plant Trial Sample No-3

F SPECIFIC GRAVITY OF INDIVIDUL MATERIALS


1> Aggregate of Hot Bin-1
2> Aggregate of Hot Bin-2
3> Aggregate of Hot Bin-3
4> Aggregate of Hot Bin-4
5> Bitumen VG-40

G THEORETICAL BITUMEN CONTENT AS PER JMF

H MAXIMUM SPECIFIC GRAVITY OF MIX (GMM) FOR TWO BITUMEN COMTENTS


1> Sample No-1
2> Sample No-2

I EFFECTIVE SPECIFIC GRAVITY (Gse) FOR TWO BITUMEN COMTENTS


1> Sample No-1
2> Sample No-2

J AVERAGE VALUE OF EFFECTIVE SPECIFIC GRAVITY (Gse)

K CALCULATION OF BULK SPECIFIC GRAVITY (Gsb) OF MIXED AGGREGATE

L CALCULATION OF APPRENT SPECIFIC GRAVITY (Gsa) OF MIXED AGGREGATE

M MARSHALL TEST OF FIVE SAMPLE AT DIFFERENT BITUMEN CONTENTS

N TEST PROPERTY CURVES FOR HOT MIX DESIGN DATA BY MARSHALL METHOD

O BAR CHART FOR SELECTION OF OPTIMUM BITUME CONTENT

P MARSHALL TEST AT OPTIMUM BITUME CONTENT

Q MAXIMUM SPECIFIC GRAVITY OF MIX (GMM) AT OPTIMUM BITUME CONTENT

R EFFECTIVE SPECIFIC GRAVITY (Gse) AT OPTIMUM BITUME CONTENT

S TENSILE STRENGTH RATIO (TSR) OF MIX AT OPTIMUM BITUME CONTENT

T PHYSICAL TEST OF DRY MIX AGGREGATE


1> Combined Flakiness and Elongation Index
2> Aggregate Impact Value (A.I.V)

U 3RD PARTY LAB TEST REPORTS


1> Bitumen
2> Aggregate
FULL FORM

JMF = JOB MIX FORMULA


GMM = MAXIMUM SPECIFIC GRAVITY OF MIX
Gse = EFFECTIVE SPECIFIC GRAVITY
Gsb = BULK SPECIFIC GRAVITY
Gsa = APPRENT SPECIFIC GRAVITY
Gmb = AVERAGE BULK SPECIFIC GRAVITY OF SPECIMEN
VMM = VOIDS IN MINERAL AGGREGATE
Va = AIR VOIDS
VFB = VOIDS FILLED WITH BITUMEN
DGR = DIAL GAUGE READING
CR = CORRELATION RATIO
PRF = PROVING RING FACTOR
Pb = PERSENTAGE OF BITUMEN
Ps = PERSENTAGE OF AGGREGATE
SSD = SATURATED SURFACE DRY
Gb = SPECIFIC GRAVITY OF BITUMEN
TSR = TENSILE STRENGTH RATIO
www.qaqccivil.com
Project Name:
Engineer:
Contractor:

Design Details of Dense Bituminous Macadam (DBM) Grading-I


Sl no Type of Material Source Blending Ratio
1 40-24 mm xyz 35%
2 24-14 mm xyz 5%
3 14-6 mm xyz 10%
4 6 mm Down xyz 50%
5 Bitumen in Total Mix xyz 4.34%
SPECIFIC GRAVITY AND WATER ABSORPTION OF AGGREGATE
Sl No Type of aggregate Bulk Sp.Gravity Apprent Sp.Gravity Water Absorption
1 40-24 mm 2.864 2.927 0.76
2 24-14 mm 2.866 2.932 0.79
3 14-6 mm 2.776 2.847 0.91
4 6 mm Down 2.742 2.852 1.4
PHYSICAL PROPERTIES OF AGGREGATE

Sl No Test Description Result Limits As Per MORTH 5th Rev. Table 500-8
1 Aggregate Impact value (AIV) 10.12 27%
2 Combined Fl-EI 32.46 35%
3 Soundness (Na2SO4) 1.18 12%
4 Soundness (MgSO4) 2.14 18%
5 Coating and Stripping Value 99 95%
PHYSICAL PROPERTIES OF BITUMEN
Sl No Test Description Result Limits As Per IS:73-2013
1 Penetration at 25°C, 100 g, 5 s, 0.1 mm 40.33 35 Min.
2 Absolute viscosity at 60°C, Poises 3749.85 3200-4800
3 Kinematic viscosity at 135°C, cSt 530.4 400 Min.
4 Flash point (Cleveland open cup), °C 320 220
5 Softening point (R&B), °C 52.5 50 Min.
6 Ductility at 25°C, cm 74 25 Min.
7 Viscosity ratio at 60°C 1.24 4 Max.
8 Solubility in trichlorethylene (%) 99.57 99
9 Specific Gravity 1.010 -

PHYSICAL PROPERTIES OF MIX


Sl No Test Description Result Limits As Per MORTH 5th Rev
1 Bulk (dry) specific gravity of the mix aggregate (Gsb) 2.793 -
2 Apparent specific gravity of the mixed aggregate (Gsa) 2.881 -
3 Effective specific gravity of aggregate (Gse) 2.803 -
4 Compacted Density of Mix (gm/cc) 2.493 -
5 Air Voids in total Mix (%) 4.22 3 to 5
6 Voids in Mineral Aggregate (VMA) (%) 14.62 11 min.
7 Voids filled with Bitumen (VFB) (%) 71.16 65 to 75
8 Marshal Stability (KN) 23.46 20.25 Min.
9 Flow (mm) 3.67 3 mm Min.
10 Optimum Bitumen Content (%) 4.34 4 Min.
11 Fines to Bitumen Ratio 0.97 0.6 to 1.2
12 Tensile strength ratio (TSR) 85.21 80 % Minimum

Contractor's Representative Authority Engineer's Representative


Name: Name:
Signature: Signature:
Date: Date:
www.qaqccivil.com
Project Name :

Engineer:
Contractor:
AGGREGATE GRADATION
(As per IS 2386 Part-1)
Report No. - RFI No: -
Type of material 40 - 24 mm Date of Sampling 02-01-2021
Source xyz Sampled by Jointly
Location Hot Bin-1 Date of testing 04-01-2021
Proposed use DBM Mix Design Tested by Jointly

Sample-1 Total Wt.(gm)= 20010 Sample-2 Total Wt.(gm)= 20988


Retained Retained
Sieve size Sieve size
(mm) % of Cumulative % of Passing (mm) % of Cumulative % of Passing
Wt (gm) Wt (gm)
Retained Retained (%) Retained Retained (%)

45 0 0.00 0.00 100.00 45 0 0.00 0.00 100.00


37.5 0 0.00 0.00 100.00 37.5 0 0.00 0.00 100.00
26.5 7992 39.94 39.94 60.06 26.5 8347 39.77 39.77 60.23
13.2 11725 58.60 98.54 1.46 13.2 12440 59.27 99.04 0.96
4.75 272 1.36 99.90 0.10 4.75 200 0.95 100.00 0.00
2.36 2.36
0.300 0.3
0.075 0.075

Sample-3 Total Wt.(gm)= 20813 Average % of Passing


Retained % of Passing
Sieve size Sieve size Average % of
(mm) % of Cumulative % of Passing (mm) Passing
Wt (gm) Sample-1 Sample-2 Sample-3
Retained Retained (%)

45 0 0.00 0.00 100.00 45 100.00 100.00 100.00 100.00


37.5 0 0.00 0.00 100.00 37.5 100.00 100.00 100.00 100.00
26.5 9098 43.71 43.71 56.29 26.5 60.06 60.23 56.29 58.86
13.2 11505 55.28 98.99 1.01 13.2 1.46 0.96 1.01 1.14
4.75 188 0.90 99.89 0.11 4.75 0.10 0.00 0.11 0.07
2.36 2.36 0.00 0.00 0.00 0.00
0.3 0.3 0.00 0.00 0.00 0.00
0.075 0.075 0.00 0.00 0.00 0.00

Remarks:

Contractor's Representative Authority Engineer's Representative


Name : Name :
Signature : Signature :
Date : Date :
www.qaqccivil.com
Project Name :
Engineer:
Contractor:
AGGREGATE GRADATION
(As per IS 2386 Part-1)
Report No. - RFI No: -
Type of material 24-14 mm Date of Sampling 02-01-2021
Source xyz Sampled by Jointly
Location Hot Bin-2 Date of testing 04-01-2021
Proposed use DBM Mix Design Tested by Jointly

Sample-1 Total Wt.(gm)= 16106 Sample-2 Total Wt.(gm)= 8469


Retained Retained
Sieve size Sieve size
(mm) % of Cumulative % of Passing (mm) % of Cumulative % of Passing
Wt (gm) Wt (gm)
Retained Retained (%) Retained Retained (%)

45 0 0.00 0.00 100.00 45 0 0.00 0.00 100.00


37.5 0 0.00 0.00 100.00 37.5 0 0.00 0.00 100.00
26.5 0 0.00 0.00 100.00 26.5 0 0.00 0.00 100.00
13.2 1956 12.14 12.14 87.86 13.2 1165 13.76 13.76 86.24
4.75 9936 61.69 73.84 26.16 4.75 6163 72.77 86.53 13.47
2.36 1360 8.44 82.28 17.72 2.36 445 5.25 91.78 8.22
0.300 2716 16.86 99.14 0.86 0.3 657 7.76 99.54 0.46
0.075 79 0.49 99.63 0.37 0.075 15 0.18 99.72 0.28
Sample-3 Total Wt.(gm)= 6890 Average % of Passing
Retained % of Passing
Sieve size Sieve size Average % of
(mm) % of Cumulative % of Passing (mm) Passing
Wt (gm) Sample-1 Sample-2 Sample-3
Retained Retained (%)

45 0 0.00 0.00 100.00 45 100.00 100.00 100.00 100.00


37.5 0 0.00 0.00 100.00 37.5 100.00 100.00 100.00 100.00
26.5 0 0.00 0.00 100.00 26.5 100.00 100.00 100.00 100.00
13.2 1360 19.74 19.74 80.26 13.2 87.86 86.24 80.26 84.79
4.75 4667 67.74 87.47 12.53 4.75 26.16 13.47 12.53 17.39
2.36 361 5.24 92.71 7.29 2.36 17.72 8.22 7.29 11.07
0.3 490 7.11 99.83 0.17 0.3 0.86 0.46 0.17 0.50
0.075 8 0.12 99.94 0.06 0.075 0.37 0.28 0.06 0.24

Remarks:

Contractor's Representative Authority Engineer's Representative


Name : Name :
Signature : Signature :
Date : Date :
www.qaqccivil.com
Project Name :

Engineer:
Contractor:
AGGREGATE GRADATION
(As per IS 2386 Part-1)
Report No. - RFI No: -
Type of material 14 - 6 mm Date of Sampling 02-01-2021
Source xyz Sampled by Jointly
Location Hot Bin-3 Date of testing 04-01-2021
Proposed use DBM Mix Design Tested by Jointly

Sample-1 Total Wt.(gm)= 4974 Sample-2 Total Wt.(gm)= 4193


Retained Retained
Sieve size Sieve size
(mm) % of Cumulative % of Passing (mm) % of Cumulative % of Passing
Wt (gm) Wt (gm)
Retained Retained (%) Retained Retained (%)

45 0 0.00 0.00 100.00 45 0 0.00 0.00 100.00


37.5 0 0.00 0.00 100.00 37.5 0 0.00 0.00 100.00
26.5 0 0.00 0.00 100.00 26.5 0 0.00 0.00 100.00
13.2 13 0.26 0.26 99.74 13.2 28 0.67 0.67 99.33
4.75 3826 76.92 77.18 22.82 4.75 2968 70.78 71.45 28.55
2.36 552 11.10 88.28 11.72 2.36 598 14.26 85.71 14.29
0.300 533 10.72 98.99 1.01 0.3 570 13.59 99.31 0.69
0.075 19 0.38 99.38 0.62 0.075 8 0.19 99.50 0.50

Sample-3 Total Wt.(gm)= 5265 Average % of Passing


Retained % of Passing
Sieve size Sieve size Average % of
(mm) % of Cumulative % of Passing (mm) Passing
Wt (gm) Sample-1 Sample-2 Sample-3
Retained Retained (%)

45 0 0.00 0.00 100.00 45 100.00 100.00 100.00 100.00


37.5 0 0.00 0.00 100.00 37.5 100.00 100.00 100.00 100.00
26.5 0 0.00 0.00 100.00 26.5 100.00 100.00 100.00 100.00
13.2 0 0.00 0.00 100.00 13.2 99.74 99.33 100.00 99.69
4.75 3870 73.50 73.50 26.50 4.75 22.82 28.55 26.50 25.95
2.36 837 15.90 89.40 10.60 2.36 11.72 14.29 10.60 12.20
0.3 531 10.09 99.49 0.51 0.3 1.01 0.69 0.51 0.74
0.075 9 0.17 99.66 0.34 0.075 0.62 0.50 0.34 0.49

Remarks:

Contractor's Representative Authority Engineer's Representative


Name : Name :
Signature : Signature :
Date : Date :
www.qaqccivil.com
Project Name :

Engineer:
Contractor:
AGGREGATE GRADATION
(As per IS 2386 Part-1)
Report No. - RFI No: -
Type of material 6 mm Down Date of Sampling 02-01-2021
Source xyz Sampled by Jointly
Location Hot Bin-4 Date of testing 04-01-2021
Proposed use DBM Mix Design Tested by Jointly

Sample-1 Total Wt.(gm)= 2589 Sample-2 Total Wt.(gm)= 2122


Retained Retained
Sieve size Sieve size
(mm) % of Cumulative % of Passing (mm) % of Cumulative % of Passing
Wt (gm) Wt (gm)
Retained Retained (%) Retained Retained (%)

45 0 0.00 0.00 100.00 45 0 0.00 0.00 100.00


37.5 0 0.00 0.00 100.00 37.5 0 0.00 0.00 100.00
26.5 0 0.00 0.00 100.00 26.5 0 0.00 0.00 100.00
13.2 0 0.00 0.00 100.00 13.2 0 0.00 0.00 100.00
4.75 279 10.78 10.78 89.22 4.75 269 12.68 12.68 87.32
2.36 625 24.14 34.92 65.08 2.36 505 23.80 36.48 63.52
0.300 1058 40.87 75.78 24.22 0.3 805 37.94 74.41 25.59
0.075 425 16.42 92.20 7.80 0.075 365 17.20 91.61 8.39
Sample-3 Total Wt.(gm)= 1960 Average % of Passing
Retained % of Passing
Sieve size Sieve size Average % of
(mm) % of Cumulative % of Passing (mm) Passing
Wt (gm) Sample-1 Sample-2 Sample-3
Retained Retained (%)

45 0 0.00 0.00 100.00 45 100.00 100.00 100.00 100.00


37.5 0 0.00 0.00 100.00 37.5 100.00 100.00 100.00 100.00
26.5 0 0.00 0.00 100.00 26.5 100.00 100.00 100.00 100.00
13.2 0 0.00 0.00 100.00 13.2 100.00 100.00 100.00 100.00
4.75 330 16.84 16.84 83.16 4.75 89.22 87.32 83.16 86.57
2.36 485 24.74 41.58 58.42 2.36 65.08 63.52 58.42 62.34
0.3 650 33.16 74.74 25.26 0.3 24.22 25.59 25.26 25.02
0.075 325 16.58 91.33 8.67 0.075 7.80 8.39 8.67 8.29

Remarks:

Contractor's Representative Authority Engineer's Representative


Name : Name :
Signature : Signature :
Date : Date :
www.qaqccivil.com
Project Name :
Engineer:
Contractor:
BLENDING FOR JOB MIX OF DBM (Grading-I)
Report No. - RFI No -
Type of material Blending for DBM Date of sampling 02-01-2021
Source xyz Sampled by Jointly
Location QAQC Lab Date of testing 04-01-2021
Proposed use DBM Mix Design Tested by Jointly
6mm
40-24 mm 24-14 mm 14-6 mm Total
Ratio of Blending (%) Down
35% 5% 10% 50% 100%
Acceptable Limit As per
Sieve size Avg. % of Passing % of MORT&H
Mid-Value
(mm) 40-24 mm 24-14 mm 14-6 mm 6mm Down
Passing Lower Limit Upper Limit

45 100.00 100.00 100.00 100.00 100.00 100 100 100


37.5 100.00 100.00 100.00 100.00 100.00 95 100 98
26.5 58.86 100.00 100.00 100.00 85.60 63 93 78
13.2 1.14 84.79 99.69 100.00 64.61 55 75 65
4.75 0.07 17.39 25.95 86.57 46.77 38 54 46
2.36 0.00 11.07 12.20 62.34 32.94 28 42 35
0.3 0.00 0.50 0.74 25.02 12.61 7 21 14
0.075 0.00 0.24 0.49 8.29 4.20 2 8 5

120.00
Grading Chart

100.00

80.00
% Passing

60.00

40.00

20.00

0.00
0.01 0.1 1 10 100
IS Sieve Size (mm)
Result Value Lower Limit Upper Limit Mid-Value

Contractor's Representative Authority Engineer's Representative


Name : Name :
Signature : Signature :
Date : Date :
www.qaqccivil.com
Project Name :

Engineer:
Contractor:
LIMITS OF JOB MIX FORMULA (JMF)
(As per MORTH 5th Rev. Table No.500-13)
Report No. - RFI No. -
Type of material DBM Grading-I Date of sampling 02-01-2021
Source of material xyz Date of testing 04-01-2021
Location QAQC Lab Sampled by Jointly
Purposed use DBM Mix Design Tested by Jointly

Permissible
Sieve Size % of Passing JMF (%) Acceptable Limit As per MORT&H
Variation
(mm) (%) (± %) Lower Limit Upper Limit Lower Limit Upper Limit
45 100.00 8.0 100.00 100.00 100 100
37.5 100.00 8.0 95.00 100.00 95 100
26.5 85.60 8.0 77.60 93.00 63 93
13.2 64.61 7.0 57.61 71.61 55 75
4.75 46.77 6.0 40.77 52.77 38 54
2.36 32.94 5.0 27.94 37.94 28 42
0.3 12.61 4.0 8.61 16.61 7 21
0.075 4.20 2.0 2.20 6.20 2 8
JMF CHART
110

100

90

80
Percent Passing (%)

70

60

50

40

30

20

10

0
0.01 0.10 1.00 10.00 100.00
Sieve Size (mm)
Morth Lower Limit Morth Upper Limit % of Passing JMF Lower Limit JMF Upper Limit

Contractor's Representative Authority Engineer's Representative


Name : Name :
Signature : Signature :
Date : Date :
www.qaqccivil.com
Project Name:

Engineer:
Contractor:
COMBINED GRADING OF HOT BIN AGGREGATE AS PER LAB JMF
(As per IS:2386 -Part-1)
Report No. - RFI No. -
Type of material Dry Mixed Aggregate (Sample-1) Date of sampling 05-01-2021
Source of material xyz Date of testing 05-01-2021
Location DBM Plant Sampled by Jointly
Purposed use DBM Mix Design Tested by Jointly

Practical Gradation Wt. of Initial Sample (gm)= 28410


Weight % Weight Cumulative % Cumulative Acceptable Limit As per
Sieve Size JMF Limit
Retained Retained Retained Passing MORT&H
(mm) (gms) (%) (%) (%) Lower Limit Upper Limit Lower Limit Upper Limit
45 0 0.00 0.00 100.00 100.00 100.00 100 100
37.5 0 0.00 0.00 100.00 95.00 100.00 95 100
26.5 2998 10.55 10.55 89.45 77.60 93.00 63 93
13.2 6584 23.17 33.73 66.27 57.61 71.61 55 75
4.75 5875 20.68 54.41 45.59 40.77 52.77 38 54
2.36 3516 12.38 66.78 33.22 27.94 37.94 28 42
0.3 5952 20.95 87.73 12.27 8.61 16.61 7 21
0.075 2152 7.57 95.31 4.69 2.20 6.20 2 8

Gradation Chart
110.00

100.00

90.00

80.00
Percent Passing (%)

70.00

60.00

50.00

40.00

30.00

20.00

10.00

0.00
0.01 0.10 1.00 10.00 100.00
Sieve Size (mm)
Result MORTH Lower Limit MORTH Upper Limit JMF-Lower Limit JMF-Upper Limit

Contractor's Representative Authority Engineer's Representative


Name : Name :

Signature : Signature :

Date : Date :
www.qaqccivil.com
Project Name:

Engineer:
Contractor:
COMBINED GRADING OF HOT BIN AGGREGATE AS PER LAB JMF
(As per IS:2386 -Part-1)
Report No. - RFI No. -
Type of material Dry Mixed Aggregate (Sample-2) Date of sampling 05-01-2021
Source of material xyz Date of testing 05-01-2021
Location DBM Plant Sampled by Jointly
Purposed use DBM Mix Design Tested by Jointly

Practical Gradation Wt. of Initial Sample (gm)= 20150


Weight % Weight Cumulative % Cumulative Acceptable Limit As per
Sieve Size JMF Limit
Retained Retained Retained Passing MORT&H
(mm) (gms) (%) (%) (%) Lower Limit Upper Limit Lower Limit Upper Limit
45 0 0.00 0.00 100.00 100.00 100.00 100 100
37.5 0 0.00 0.00 100.00 95.00 100.00 95 100
26.5 2516 12.49 12.49 87.51 77.60 93.00 63 93
13.2 4251 21.10 33.58 66.42 57.61 71.61 55 75
4.75 3512 17.43 51.01 48.99 40.77 52.77 38 54
2.36 3215 15.96 66.97 33.03 27.94 37.94 28 42
0.3 4065 20.17 87.14 12.86 8.61 16.61 7 21
0.075 1898 9.42 96.56 3.44 2.20 6.20 2 8

Gradation Chart
110.00

100.00

90.00

80.00
Percent Passing (%)

70.00

60.00

50.00

40.00

30.00

20.00

10.00

0.00
0.01 0.10 1.00 10.00 100.00
Sieve Size (mm)
Result MORTH Lower Limit MORTH Upper Limit JMF-Lower Limit JMF-Upper Limit

Contractor's Representative Authority Engineer's Representative


Name : Name :

Signature : Signature :

Date : Date :
www.qaqccivil.com
Project Name:

Engineer:
Contractor:
COMBINED GRADING OF HOT BIN AGGREGATE AS PER LAB JMF
(As per IS:2386 -Part-1)
Report No. - RFI No. -
Type of material Dry Mixed Aggregate (Sample-3) Date of sampling 05-01-2021
Source of material xyz Date of testing 05-01-2021
Location DBM Plant Sampled by Jointly
Purposed use DBM Mix Design Tested by Jointly

Practical Gradation Wt. of Initial Sample (gm)= 30050


Weight % Weight Cumulative % Cumulative Acceptable Limit As per
Sieve Size JMF Limit
Retained Retained Retained Passing MORT&H
(mm) (gms) (%) (%) (%) Lower Limit Upper Limit Lower Limit Upper Limit
45 0 0.00 0.00 100.00 100.00 100.00 100 100
37.5 0 0.00 0.00 100.00 95.00 100.00 95 100
26.5 3845 12.80 12.80 87.20 77.60 93.00 63 93
13.2 6215 20.68 33.48 66.52 57.61 71.61 55 75
4.75 5365 17.85 51.33 48.67 40.77 52.77 38 54
2.36 5231 17.41 68.74 31.26 27.94 37.94 28 42
0.3 5846 19.45 88.19 11.81 8.61 16.61 7 21
0.075 2054 6.84 95.03 4.97 2.20 6.20 2 8

Gradation Chart
110.00

100.00

90.00

80.00
Percent Passing (%)

70.00

60.00

50.00

40.00

30.00

20.00

10.00

0.00
0.01 0.10 1.00 10.00 100.00
Sieve Size (mm)
Result MORTH Lower Limit MORTH Upper Limit JMF-Lower Limit JMF-Upper Limit

Contractor's Representative Authority Engineer's Representative


Name : Name :

Signature : Signature :

Date : Date :
www.qaqccivil.com
Project Name :
Engineer:
Contractor:
SPECIFIC GRAVITY & WATER ABSORPTION
BY WIRE BASKET [As per IS 2386, (Part - III)]
Report No. - RFI No -
Type of Material 40-24 mm Aggregate Date of Sampling 28-12-2020
Source xyz Sampled By Jointly
Location Hot Bin-1 Date of Testing 28-12-2020
Proposed Use DBM/BC Mix design Tested By Jointly
Description 1 2 3

Wt of SSD sample (W1) (gm) 3425 3575 3476

Wt of Wire Basket + Sample in Water, (W2) (gm) 3196.5 3294 3232

Wt of Wire Basket in Water, (W3) (gm) 959 959 959

Wt of Oven Dry sample, (W4) (gm) 3398.5 3549 3450

Specific Gravity = W4/[W1 - (W2 - W3)] 2.862 2.862 2.868

Apparent Specific Gravity = W4/[W4 - (W2 - W3)] 2.927 2.923 2.931

Water Absorption (% of dry basis) = 100 x (W1 -


0.78 0.73 0.75
W4)/W4

Average Specific Gravity 2.864

Average Apparent Specific Gravity 2.927

Average Water Absorption % 0.76


Remarks :

Contractor's Representative Authority Engineer's Representative

Name: Name:

Signature: Signature:

Date: Date:
www.qaqccivil.com
Project Name :

Engineer:
Contractor:
SPECIFIC GRAVITY & WATER ABSORPTION
BY WIRE BASKET [As per IS 2386, (Part - III)]
Report No. RFI No -
Type of Material 24-14 mm Aggregate Date of Sampling 28-12-2020
Source xyz Sampled By Jointly
Location Hot Bin-2 Date of Testing 28-12-2020
Proposed Use DBM/BC Mix design Tested By Jointly
Description 1 2 3

Wt of SSD sample (W1) (gm) 3025 3200 3346

Wt of Wire Basket + Sample in Water, (W2) (gm) 2938 3052 3144

Wt of Wire Basket in Water, (W3) (gm) 959 959 959

Wt of Oven Dry sample, (W4) (gm) 2999 3176 3321

Specific Gravity = W4/[W1 - (W2 - W3)] 2.867 2.869 2.860

Apparent Specific Gravity = W4/[W4 - (W2 - W3)] 2.940 2.933 2.923

Water Absorption (% of dry basis) = 100 x (W1 -


0.87 0.76 0.75
W4)/W4

Average Specific Gravity 2.866

Average Apparent Specific Gravity 2.932

Average Water Absorption % 0.79


Remarks :

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SPECIFIC GRAVITY & WATER ABSORPTION
BY PYCNOMETER [As per IS 2386, (Part - III)]
Report No. - RFI No -
Type of Material 14-6 mm Aggregate Date of Sampling 28-12-2020
Source xyz Sampled By Jointly
Location Hot Bin-3 Date of Testing 28-12-2020
Proposed Use DBM/BC Mix design Tested By Jointly
Description 1 2 3

Wt of SSD sample (W1) (gm) 520.0 520.0 520.0

Wt of Pycnometer Bottle + Sample+Water, (W2) (gm) 1896.5 1896.5 1896.0

Wt of Pycnometer Bottle + Water, (W3) (gm) 1562.0 1562.0 1562.0

Wt of Oven Dry sample, (W4) (gm) 515.5 515.0 515.5

Specific Gravity = W4/[W1 - (W2 - W3)] 2.779 2.776 2.772

Apparent Specific Gravity = W4/[W4 - (W2 - W3)] 2.848 2.853 2.840

Water Absorption (% of dry basis) = 100 x (W1 -


0.87 0.97 0.87
W4)/W4

Average Specific Gravity 2.776

Average Apparent Specific Gravity 2.847

Average Water Absorption % 0.91


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SPECIFIC GRAVITY & WATER ABSORPTION
BY PYCNOMETER [As per IS 2386, (Part - III)]
Report No. - RFI No -
Type of Material 6 mm Down Aggregate Date of Sampling 28-12-2020
Source xyz Sampled By Jointly
Location Hot Bin-4 Date of Testing 28-12-2020
Proposed Use DBM/BC Mix design Tested By Jointly
Description 1 2 3

Wt of SSD sample (W1) (gm) 520.0 520.0 520.0

Wt of Pycnometer Bottle + Sample+Water, (W2) (gm) 1895.5 1894.5 1895.0

Wt of Pycnometer Bottle + Water, (W3) (gm) 1562.0 1562.0 1562.0

Wt of Oven Dry sample, (W4) (gm) 512.5 513.5 512.5

Specific Gravity = W4/[W1 - (W2 - W3)] 2.748 2.739 2.741

Apparent Specific Gravity = W4/[W4 - (W2 - W3)] 2.863 2.837 2.855

Water Absorption (% of dry basis) = 100 x (W1 -


1.46 1.27 1.46
W4)/W4

Average Specific Gravity 2.742

Average Apparent Specific Gravity 2.852

Average Water Absorption % 1.40


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SPECIFIC GRAVITY OF BITUMEN


Report No. - RFI No: -
Type of material Bitumen VG-40 Date of Sampling 02-01-2021
Source xyz Sampled by Jointly
Location QAQC Lab Date of testing 02-01-2021
Proposed use DBM Tested by Jointly
Description Test 1 Test 2 Test 3

Weigth of Bottle (W1) (gm) 35.00 35.00 35.00

Weigth of Bottle + Distilled Water (W2) (gm) 105.26 105.26 105.26

Weigth of Bottle + Bitumen Sample (W3) (gm) 80.28 81.11 82.36

Weigth of Bottle + Bitumen Sample + Distilled Water (W4) (gm) 105.65 105.81 105.70

Specific Gravity of Bitumen = (W3-W1)/{(W2-W1)-(W4-W3)} - 1.009 1.012 1.009

Average Specific Gravity of Bitumen - 1.010


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THEORETICAL BITUMEN CONTENT

Report No. - RFI No. -


Type of material DBM Grading-I Job Mix Date of sampling 02-01-2021
Source of material xyz Date of testing 04-01-2021
Location QAQC Lab Sampled by Jointly
Purposed use DBM Mix Design Tested by Jointly

Theoretical Bitumen % required for mix as per ''Asphalt Mix Design Methods MS-2''

P = 0.035a + 0.045b + Kc + F
P = 5.18

a= 67.06
b= 28.74
c= 4.20
K= 0.20
F= 0.70

Where:
P = approximate asphalt content of mix,percent by weight of mix
a = percent of mineral aggregate retained on 2.36-mm sieve
b = percent of mineral aggregate passing the 2.36-mm sieve and retained on the 75-μm sieve
c = percent of mineral aggregate passing 75-μm sieve
K = 0.15 for 11–15 percent passing 75-μm sieve
0.18 for 6–10 percent passing 75-μm sieve
0.20 for 5 percent or less passing 75-μm sieve
F = 0 – 2.0 percent. Based on the absorption of light or heavy aggregate, in the absence of other data, a
value of 0.7 is suggested.

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THEORETICAL MAXIMUM SPECIFIC GRAVITY OF MIX (GMM)


(As per ASTM D2041)
Report No. - RFI No. -
Type of material DBM Grading-I Sample Date of Sampling 02-01-2021
Source of material xyz Date of Testing 04-01-2021
Location QAQC Lab Sampled by Jointly
Purposed use DBM Mix Design Tested by Jointly

Sample No 1 2 3 Remarks

A % of Binder Content 4.4 5.18


B Wt. of Flask + Corks (gm) 915.0 915.0
C Wt. of Flask + Corks+Water (gm) 3025.0 3025.0
D Wt. of Sample in Air (gm) 1238.5 1240.5
E Wt. of Flask + Corks+ Water + Sample (gm) 3787.5 3782.0
F Temperature of Water (⁰C) 27.0 27.0
G Wt. of replaced Water (gm)= D-(E-C) 476.0 483.5
H Maximum Specific Gravity of Mix (GMM)= D/G 2.602 2.566

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CALCULATION OF EFFECTIVE SPECIFIC GRAVITY (Gse) OF MIXED


AGGREGATE AS PER MS-2

Bitumen Content = 4.4 %

𝑷𝒔
Gse= 𝟏𝟎𝟎 𝑷𝒃

𝑮𝒎𝒎 𝑮𝒃

95.6
Gse=
100 4.4
-
2.601 1.01
95.60
Gse=
34.090

Gse= 2.804
Where:

Pb= 4.4 Gb= 1.010 Gse = Effective specific gravity of aggregate


Ps = Percentage of aggregate by total mix weight
Ps= 95.6 Gmm= 2.601
Pb = Percentage of binder by total mix weight, at which the
Gmm test was performed
Gmm = maximum specific gravity of paving mixtur
Gb = specific gravity of binder

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CALCULATION OF EFFECTIVE SPECIFIC GRAVITY (Gse) OF MIXED


AGGREGATE AS PER MS-2

Bitumen Content = 5.18 %

𝑷𝒔
Gse= 𝟏𝟎𝟎 𝑷𝒃

𝑮𝒎𝒎 𝑮𝒃

94.82
Gse=
100 5.18
-
2.566 1.01
94.82
Gse=
33.842

Gse= 2.802
Where:
Gse = Effective specific gravity of aggregate
Pb= 5.18 Gb= 1.010
Ps = Percentage of aggregate by total mix weight
Ps= 94.82 Gmm= 2.566
Pb = Percentage of binder by total mix weight, at which the
Gmm test was performed
Gmm = maximum specific gravity of paving mixtur
Gb = specific gravity of binder

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AVERAGE EFFECTIVE SPECIFIC GRAVITY (Gse) OF MIXED


Average
Sl. No Bitumen Content GMM Gse
Gse

1 4.40 2.601 2.804


2.803
2 5.18 2.566 2.802
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CALCULATION OF BULK SPECIFIC GRAVITY (Gsb) OF MIXED AGGREGATE

𝑷𝟏+𝑷𝟐+𝑷𝟑+⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯+𝑷𝒏
Gsb= 𝑷𝟏 𝑷𝟐 𝑷𝟑 𝑷𝒏
+ + +⋯⋯⋯⋯⋯⋯+𝑮𝒏
𝑮𝟏 𝑮𝟐 𝑮𝟑

35 + 5 + 10 + 50
Gsb=
35 5 10 50
+ + +
2.864 2.866 2.776 2.742
100.00
Gsb=
35.802

Gsb= 2.793
Where:

P1= 35 G1= 2.864 Gsb = bulk (dry) specific gravity of the mix aggregate
P1, P2,P3...Pn = percentages by weight of aggregates 1,
P2= 5 G2= 2.866
2,3 through n
G1, G2,G3... Gn = bulk (dry) specific gravity of aggregates
P3= 10 G3= 2.776
1, 2,3 through n
P4= 50 G4= 2.742

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CALCULATION OF APPRENT SPECIFIC GRAVITY (Gsa) OF MIXED


AGGREGATE

𝑷𝟏+𝑷𝟐+𝑷𝟑+⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯+𝑷𝒏
Gsa= 𝑷𝟏 𝑷𝟐 𝑷𝟑 𝑷𝒏
+ + +⋯⋯⋯⋯⋯⋯+
𝑮𝟏 𝑮𝟐 𝑮𝟑 𝑮𝒏

35 + 5 + 10 + 50
Gsa=
35 5 10 50
+ + +
2.927 2.932 2.847 2.852
100.00
Gsa=
34.707

Gsa= 2.881
Where:

P1= 35 G1= 2.927 Gsa = Apparent specific gravity of the mixed aggregate
P1, P2,P3...Pn = Percentages by weight of aggregates 1, 2,3
P2= 5 G2= 2.932
through n
G1, G2,G3... Gn = Apparent specific gravity of aggregates 1,
P3= 10 G3= 2.847
2,3 through n
P4= 50 G4= 2.852

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MARSHALL TEST RESULT


Type of material DBM Grading-I Type of Material 40-24 mm 24-14 mm 14-6 mm 6 mm Down Bitumen (Gb) Effective Sp. Gr. Of Agg. (Gse)= 2.803 Date of Casting 04-01-2021

Source of material xyz Sp.Gravity 2.864 2.866 2.776 2.742 1.010 Bulk Sp.Gr. of total Agg. (Gsb)= 2.793 Date of Testing 05-01-2021

Proving Ring
Purposed use DBM % of Aggregate 35% 5% 10% 50% - Apperent Sp.Gr. (Gsa)= 2.881 0.133 KN
Factor

Max. Sp.gr. Of
% of Avg. Bulk Voids in Void filled Dial
% of Weight in Weight in Weight in Bulk Bulk Sp.Gr. Of Sample Correlatio Stabillty
Sl No Aggregat Mould Sp.Gr. Of Mineral Air Voids With Gauge Avg. Stabillty Flow Avg. Flow
Bitumen air Water Air SSD Volume Specimen Theoretical n Ratio (KN)
e Specimen Aggregate Bitumen Reading
(GMM)

Gmm=100/{(Ps/G
Wssd-Ww VMA=100- Va=100*{1- VFB=100x(VM
- Pb Ps=100-Pb No Wa (gm) Ww (gm) Wssd (gm) Wa/(Wssd-Ww) Gmb se)+(Pb/Gb)} DGR CR (DGR*CR*PRF) (KN) (mm) (mm)
(cc) (Gmb*Ps/Gsb) (Gmb/Gmm)} A-Va)/VMA

1 1 4043.0 2429.0 4053.0 1624.0 2.490 175 1.12 26.07 3.1


2 4.18 95.82 2 4040.0 2426.0 4050.0 1624.0 2.488 2.489 2.609 14.61 4.62 68.41 180 1.12 26.81 26.81 3.1 3.1
3 3 4048.0 2430.0 4056.0 1626.0 2.490 185 1.12 27.56 3.0
4 4 4042.0 2435.0 4050.0 1615.0 2.503 160 1.12 23.83 4.6
5 4.68 95.32 5 4040.0 2434.0 4052.0 1618.0 2.497 2.500 2.588 14.69 3.42 76.75 165 1.12 24.58 23.83 4.7 4.6
6 6 4046.0 2436.0 4055.0 1619.0 2.499 155 1.12 23.09 4.6
7 7 4040.0 2435.0 4045.0 1610.0 2.509 140 1.12 20.85 8.0
8 5.18 94.82 8 4036.0 2433.0 4045.0 1612.0 2.504 2.507 2.567 14.89 2.33 84.32 145 1.12 21.60 21.35 8.2 8.0
9 9 4038.0 2434.0 4044.0 1610.0 2.508 145 1.12 21.60 7.8
10 10 4045.0 2440.0 4050.0 1610.0 2.512 120 1.12 17.88 12.2
11 5.68 94.32 11 4045.0 2438.0 4048.0 1610.0 2.512 2.509 2.546 15.26 1.45 90.52 115 1.12 17.13 17.13 12.6 12.3
12 12 4048.0 2435.0 4052.0 1617.0 2.503 110 1.12 16.39 12.0
13 13 4040.0 2430.0 4050.0 1620.0 2.494 100 1.12 14.90 15.6
14 6.18 93.82 14 4043.0 2432.0 4046.0 1614.0 2.505 2.500 2.526 16.01 1.01 93.70 95 1.12 14.15 14.90 15.2 15.6
15 15 4044.0 2432.0 4048.0 1616.0 2.502 105 1.12 15.64 15.9

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Test Property Curves for Hot Mix Design Data by the Marshall Method

Bitumen
Sl No Density (gm/cc) % of Air Voide VMA(%) VFB(%) Flow (mm) Stability (KN)
Content (%)
1 4.18 2.489 4.62 14.61 68.41 3.10 26.81
2 4.68 2.500 3.42 14.69 76.75 4.60 23.83
3 5.18 2.507 2.33 14.89 84.32 8.00 21.35
4 5.68 2.509 1.45 15.26 90.52 12.30 17.13
5 6.18 2.500 1.01 16.01 93.70 15.60 14.90

2.515
5.00
4.50
2.510 4.00
3.50
Density (gm/cc)

Air Voide (%)


2.505
3.00
2.500 2.50
2.00
2.495 1.50
1.00
2.490
0.50
2.485 0.00
4.00 4.50 5.00 5.50 6.00 6.50 7.00 4.00 4.50 5.00 5.50 6.00 6.50 7.00
Bitumen Content (%) Bitumen Content (%)

16.20 100
16.00 95
15.80 90
15.60
85
VMA (%)

VFB (%)

15.40
80
15.20
75
15.00
14.80 70

14.60 65
14.40 60
4.00 4.50 5.00 5.50 6.00 6.50 7.00 4.00 4.50 5.00 5.50 6.00 6.50 7.00
Bitumen Content (%) Bitumen Content (%)

18.00 30.00
16.00
25.00
14.00
12.00 20.00
Flow (mm)

Stability (KN)

10.00
15.00
8.00
6.00 10.00
4.00
5.00
2.00
0.00 0.00
4.00 4.50 5.00 5.50 6.00 6.50 7.00 4.00 4.50 5.00 5.50 6.00 6.50 7.00
Bitumen Content (%) Bitumen Content (%)

Bitumen Content at 4 % of Air Voide = 4.45 %

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SELECTION OF OPTIMUM BITUME CONTENT

Trial No Permissible limit as per MORTH


Sl No
1 2 3 4 5 Minimum Maximum
Bitumen Content (%) 4.18 4.68 5.18 5.68 6.18 4.0 -
% of Air Voide 4.62 3.42 2.33 1.45 1.01 3.0 5.0
VMA(%) 14.61 14.69 14.89 15.26 16.01 11.0 -
VFB(%) 68.41 76.75 84.32 90.52 93.70 65.0 75.0
Flow (mm) 3.10 4.60 8.00 12.30 15.60 3.0 4.0
Stability (KN) 26.81 23.83 21.35 17.13 14.90 20.3 -

Selection of optimum Bitumen content from Bar Chart

% of Air Voide PASS

VMA(%) PASS

VFB(%) PASS

Flow (mm) PASS

Stability (KN) PASS

4.00 4.50 5.00 5.50 6.00 6.50


Bitumen Content (%)

As per bar-chart , all criteria fulfill between bitumen content 4.18 % to 4.50 %
Therefore, Optimum bitumen content adopted for Mix-Design = 4.34%

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MARSHALL TEST RESULT AT OPTIMUM BITUME CONTENT

Type of material DBM Grading-I Type of Material 40-24 mm 24-14 mm 14-6 mm 6 mm Down Bitumen (Gb) Effective Sp. Gr. Of Agg. (Gse)= 2.803 Date of Casting 05-01-2021

Source of material xyz Sp.Gravity 2.864 2.866 2.776 2.742 1.010 Bulk Sp.Gr. of total Agg. (Gsb)= 2.793 Date of Testing 06-01-2021

Proving Ring
Purposed use DBM % of Aggregate 35% 5% 10% 50% 4.34 Apperent Sp.Gr. (Gsa)= 2.881 0.133 KN
Factor

Max. Sp.gr. Of
% of Avg. Bulk Voids in Void filled Dial
% of Weight in Weight in Weight in Bulk Bulk Sp.Gr. Of Sample Correlation Stabillty
Sl No Aggregat Mould Sp.Gr. Of Mineral Air Voids With Gauge Avg. Stabillty Flow Avg. Flow
Bitumen air Water Air SSD Volume Specimen Theoretical Ratio (KN)
e Specimen Aggregate Bitumen Reading
(GMM)

Gmm=100/{(Ps/G
Wssd-Ww VMA=100- Va=100*{1- VFB=100x(VM
- Pb Ps=100-Pb No Wa (gm) Ww (gm) Wssd (gm) Wa/(Wssd-Ww) Gmb se)+(Pb/Gb)} DGR CR (DGR*CR*PRF) (KN) (mm) (mm)
(cc) (Gmb*Ps/Gsb) (Gmb/Gmm)} A-Va)/VMA

1 1 4052.0 2433.0 4056.0 1623.0 2.497 160 1.12 23.83 3.8

2 4.34 95.66 2 4046.0 2427.0 4050.0 1623.0 2.493 2.494 2.602 14.58 4.17 71.42 155 1.12 23.09 23.09 3.7 3.7

3 3 4043.0 2426.0 4048.0 1622.0 2.493 150 1.12 22.34 3.6

4 4 4051.0 2430.0 4055.0 1625.0 2.493 160 1.12 23.83 3.6

5 4.34 95.66 5 4048.0 2428.0 4053.0 1625.0 2.491 2.491 2.602 14.67 4.27 70.90 165 1.12 24.58 23.83 3.5 3.6

6 6 4044.0 2426.0 4050.0 1624.0 2.490 155 1.12 23.09 3.8

AVERAGE RESULT 2.493 2.602 14.62 4.22 71.16 - 23.46 - 3.67

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THEORETICAL MAXIMUM SPECIFIC GRAVITY OF MIX (GMM)


(As per ASTM D2041)
Report No. - RFI No. -
Type of material DBM Grading-I Sample Date of Sampling 02-01-2021
Source of material xyz Date of Testing 06-01-2021
Location QAQC Lab Sampled by Jointly
Purposed use DBM Mix Design Tested by Jointly

Sample No 1 2 3 Remarks

A % of Binder Content 4.34


B Wt. of Flask + Corks (gm) 915.0
C Wt. of Flask + Corks+Water (gm) 3079.0
D Wt. of Sample in Air (gm) 1480.0
E Wt. of Flask + Corks+ Water + Sample (gm) 3990.5
F Temperature of Water (⁰C) 27.0
G Wt. of replaced Water (gm)= D-(E-C) 568.5
H Maximum Specific Gravity of Mix (GMM)= D/G 2.603

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CALCULATION OF EFFECTIVE SPECIFIC GRAVITY (Gse) OF MIXED


AGGREGATE AS PER MS-2

Bitumen Content = 4.34 %

𝑷𝒔
Gse= 𝟏𝟎𝟎 𝑷𝒃

𝑮𝒎𝒎 𝑮𝒃

95.66
Gse=
100 4.34
-
2.603 1.01
95.66
Gse=
34.120

Gse= 2.804
Where:
Gse = Effective specific gravity of aggregate
Pb= 4.34 Gb= 1.010
Ps = Percentage of aggregate by total mix weight
Ps= 95.66 Gmm= 2.603
Pb = Percentage of binder by total mix weight, at which the
Gmm test was performed
Gmm = maximum specific gravity of paving mixtur
Gb = specific gravity of binder

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TENSILE STRENGTH RATIO (TSR)
[As per AASHTO T 283]
Type of Material DBM Grading-1 RFI No -
Source xyz Date of Sampling 05-01-2021
Location QAQC LAB Date of Testing 11-01-2021
Proposed Use DBM Tested by Jointly

DESCRIPTIONS DRY GROUP CONDITIONATED GROUP


SL NO
Specimen ID 1 2 3 4 5 6
1 Thickness, T mm 92.52 91.60 90.70 90.68 90.71 91.82
2 Diameter,D mm 151.30 151.54 151.60 151.62 151.43 151.40
3 Dry weight in air, Wa gm 4042.5 4040.0 4030.0 4026.5 4018.5 4048.0
4 Weight in Water, Ww gm 2372.0 2370.0 2366.5 2367.0 2358.0 2378.0
5 SSD weight, Wssd gm 4046.0 4045.0 4036.0 4033.5 4024.5 4052.0
6 Volume, V= (Wssd - Ww) cm3 1674 1675 1669.5 1666.5 1666.5 1674
7 Bulk Sp. Gravity, Gmb= Wa/V - 2.415 2.412 2.414 2.416 2.411 2.418
8 Max. Specific Gravity of mix, Gmm - 2.603 2.603 2.603 2.603 2.603 2.603
9 % of Air Voide Pa = 100(Gmm-Gmb)/Gmm % 7.23 7.34 7.26 7.18 7.36 7.10
10 Volume of Air voids, Va = Pa x V/100 cm3 120.98 122.94 121.29 119.63 122.70 118.87
AFTER SUBMERGED IN WATER WITH VACUUM PRESSURE (10-26 in.Hg)
11 SSD weight, Wssd2 gm 4102.0 4090.5 4120.0
12 Volume of absorbed water, AW = Wssd2 - Wa cm3 NA 75.5 72.0 72.0
13 Degree of saturation, S' = 100 x AW/Va % 63.11 58.68 60.57
TENSILE STRENGTH OF SPECIMEN
14 Max. Load, P N 18620 17955 17290 14630 15960 15029

15 Tensile Strength S = 2P/(3.14 x T x D) Pa 0.85 0.82 0.80 0.68 0.74 0.69


S1 S2
16 Average Tensile Strength Pa
0.82 0.70
17 Tensile Strength ratio, TSR = 100 x S2/S1 % 85.21
Notes:
1. TSR limit as per MORTH 5th Rev. = 80 % minimum
2. If degree of saturation (S') between 55% to 80% then continue with test specimen.
3. If degree of saturation (S') less than 55% then repeat the procedure with test specimens.
4. If degree of saturation (S') more than 80% then discard the test specimens.
5. Mould should be compacted to 7 ± 1.0 % air voids or a void level expected in the field.

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COMBINED FLAKINESS & ELONGATION INDEX
(As Per IS 2386 Part - I)
Type of Material DBM Grading-I (Dry Mix Sample) RFI No -
Source xyz Date of Sampling 28-12-2020
Location QAQC Lab Date of Testing 28-12-2020
Proposed Use DBM Tested by Jointly
Weight of aggregate Weight of aggregate
Weight of Weight of aggregate
passing through thickness retain on thickness
Sieve size(mm) aggregate taken retain on Length gauge Remarks
gauge gauge
(A) (D)
(B) (C)

63mm - 50mm - - - -

50mm - 40mm - - - -

40mm - 31.5mm - - - -

31.5mm - 25mm 7442 678 -

25mm - 20mm 4554 564 3990 862

20mm - 16mm 1737 332 1405 196

16mm - 12.5mm 1066 147 919 237

12.5mm - 10mm 630 108 522 108

10mm - 6.3mm 380 34 346 82

TOTAL 15809 1863 7182 1485

Flakiness index (FI) =(B/A) X 100 = 11.78 %


Elongation Index (EI)=(D/C) X 100 = 20.68 %
Combined Flakiness and Elongation Index = 32.46 %
Specification Limit as per MORT&H 5th Rev. Table:500-8 = 35% Max.

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AGGREGATE IMPACT VALUE TEST
(IS:2386 PART-4)
Report No. - RFI No: -
Type of material 12.5mm Passing & 10mm Retain Date of Sampling 05-01-2021
Source xyz Sampled by Jointly
Location QAQC Lab Date of testing 05-01-2021
Proposed use DBM Tested by Jointly
Description Test 1 Test 2 Test 3
Weight of Oven dry sample passing 12.5mm and
(gm) 350 348 349
retained on 10mm IS sieves, W1.
Weight of fraction passing on 2.36mm sieve after the
(gm) 36.0 35.0 35.0
test, W2.
Weight of fraction retained on 2.36mm sieve after the
(gm) 314.0 313.0 314.0
test, W3.

Aggregate Impact Value (A.I.V) = (W2/W1) x 100 % 10.29 10.06 10.03

Average Value of A.I.V % 10.12

Maximum Specification Limit as per MORTH % 27%


Remarks :

Contractor's Representative Authority Engineer's Representative


Name: Name:

Signature: Signature:

Date: Date:

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