concerete ,mix design

3.15

2.66

2.68

10.00 N/mm

1.65

3.5

Details of Trial Mix Design For ConcreteGrade of Concrete 40M10

Type of Cement Ordinary Portland Cement

Brand Name of cement BHARATHI CEMENT,JK CEMENT

KRISHNA BHAGYA JALA NIGAM LIMITED

(A Government of Karnataka Undertaking)

Office of the

Assistant Executive Engineer

KBJNL,Quality Control

Sub Division-8

Bheemarayangudi

Name of Work :Remodeling of Distributries,Subdistributary from Dy-1 to Dy-24 and

their laterals including structures SBC under ERM of NLBC work.

Name of Construction Division Executive Engineer ,KBJNL ,SBC O&M Division B'gudi/Khanapur

Name of Construction Sub division

:Assistant Executive Engineer KBJNL SBC O & M Sub Divn. No-9

Malagatti/No.8 Wanadurga/, No.11Krishnapur/No.10

Hasanapur/,NO.1 Wadagera/,No.10 Khanapur/,No.12

Specific gravities of a) Cement

b) Sand/Fine aggregate

c) Coarse aggregate

Grade of cement 43 Grade

Sand/ Fine aggregate conforming to Grade Zone II of IS 383:1970

Type coarse aggregate Conforming to IS:383

Code of requirement 40 mm Crushed (Angular)

Good

Target Mean Strength

fck=Characterstic Compressive strength at 28

t = Tolerance factor (Risk factor)

Where

Fck= fck+ts

15.78 N/mm

s = Standard Deviation

0.5

165

30

28.00 %

0.99

322.91

3.15

161.45Liters/Cu.m

0.28

2.66

2.68

MIX

40M10

Change in condition % adjustment In water content %Adjustment of sand in Total aggregates

For sand conforming to Zone-II 0 0

Trial No.1

1. Selection of water cement ratio (As per fig-1 of IS:10262-1982) W/c=

2.Selection of Water and Sand Content:

From table 4 of IS 10262 for 40mm Maximum size aggregate,sand confirming to grade zone

II, water content per cum of concrete=

3.Sand content as % of total aagregate by absolute volume

Following adjustments are made in water content and sand percentage for other conditions

3 -2

Required sand content as % of total aggregate by absolute value=

Required water content= 169.95Liters/Cu.m

Each 0.05 increase or decrease in

free water-cement ratio0 -2

For increase in compaction

factor(0.9-0.8)=0.1 3 0

40M10 0.5 161.45Liters/Cu.m 322.91

4

Water can be reduced upto 5% by using the super plasticizer 161.45Liters/Cu.m

Determination of fine aggregate and coarse aggregate

From table 41 of Sp-23 1982 for 40mm aggregate, The amount of entrapped air in the wet concrete is 2% .Taking

this into account and applying equation No.2&3 of section 6.4 of SP-23 1982 page 107

Determination of cement content

Mix

W/c Ratio as per

SL-1 above

Water in Liter/Cum as per Sl-2

above Cement in Kg/Cum(Column3/2)

1 2 3

sfa=Specific gravities of saturated surface dry fine aggregate

sca=Specific gravities of saturated surface Coarse fine aggregate

Fine aggregate,fa Kg/Cu.m 541

Coarse aggregate ,Ca Kg/Cu.m 1,401

WHERE

v= Gross volume-volume of entrapped air =1-0.01

c = Mass of cement Kg/cum of concrete

sc= Specific gravities of cement

w=Mass of water(kg) per Cu.m of concrete

fa,ca=ratio of fine aggregate to total aggregate and coarse aggregate by absolute volume

1 1.675 4.339 0.50

Total quantities of Ingradients and Mix Proportion

Cement Kg/Cu.m

Fine Aggregate

Kg/Cu.m

Coarse Aggregate

Kg/Cu.m Water Liters /Cu.m

322.91 541 1,401 161.453

0.55

165

30

29.00 %

0.99

293.550

3.15

161.45Liters/Cu.m

0.29

2.66

2.68

MIX

40M10

Trial No.2


For sand conforming to Zone-II 0 0Each 0.05 increase or decrease in

free water-cement ratio 0 -1










Mix

W/c Ratio as per

SL-1 above

Water in Kg/Cum as per Sl-2



For increase in compaction 3 0

3 -1




WHERE




1.932 4.766 0.55

1 2 3 4

40M10 0.55 161.45Liters/Cu.m 293.550

567



Cement Fine Aggregate Coarse Aggregate Water

1




sca=Specific gravities of saturated surface dry Coarse aggregate

Fine aggregate,fa Kg/Cu.m

293.550 567 1,399 161.45Liter/Cu.m

0.6

165

30

30.00 %

0.99

269.09

3.15

161.45Liters/Cu.m

0.3

2.66

2.68

MIX

40M10


Trial No.3





40M10 0.6 161.45Liters/Cu.m 269.09


Each 0.05 increase or decrease in 0 0


Mix

W/c Ratio as per

SL-1 above



161.45Liters/Cu.m



1 2 3 4

3 0

3 0

Water can be reduced upto 5% by using the super plasticizer









WHERE




269.09 593 1,394 161.45Liter/Cu.m

1 2.204 5.180 0.60




Summary For 40 M10

Trial No.1 w/c=0.50 Cement =322.90 Kg/Cu.m



As per agreement for 40 M10 the limit for cement content is 220Kg/Cu.m

The nearest w/c ratio is 0.60




0.6

132

30

32.50 %

0.99

220.00

3.15

135.96Liters/Cu.m

0.325

2.66

2.68

MIX

40M10

3 4

40M10 0.6 132 220.00

1


For sand conforming to Zone-II 0 1.5

Increase by 2.5% as per third trial which shows the under sand,required sand

will be content as % of total aggregate by absolute value =




Mix

W/c Ratio as per

SL-1 above


above

2

3

Cement in Kg/Cum(Column3/2)

Trial No.4


2.Based upon Experience Selection of Water:





1.5



1 3.082 6.450 0.60


Cement Kg/Cu.m

220.00 678 1,419 132










Fine Aggregate

Kg/Cu.m

Coarse Aggregate

Kg/Cu.m Water Liters/Cu.m

WHERE



Sl.no

Mix proportion

40M10

W/C

RATIO

QTY OF

CEMENT

Kg/Cum

SLUMP

MM

DATE OF

CASTING

DATE OF

TESTING

SPECI

MEN

NO.

WEIGHT

OF

CUBES

(GRAMM)

APPLIED

LOAD KN

COMPRES

SIVE

STRENGTH

N/Sq.mm

AVG

COMPRES

SIVE

STRENGTH

N/Sq.mm

7DAYS

COMPRES

SIVE

STRENGT

H N/Sq.mm

28DAYS

COMPRES

SIVE

STRENGT

H N/Sq.mm

1 2 3 4 5 6 7 8 9 10 11 12 13 13

1st Trial 1:1.675:4.339 0.5 322.91 60 17-Apr-15 24-Apr-15 1 8672 398.1 17.69

17-Apr-15 24-Apr-15 2 8912 387.7 17.23 17.33 17.33

17-Apr-15 24-Apr-15 3 9001 384.1 17.07

2nd Trial 1:1.932:4.766 0.55 293.550 61 17-Apr-15 24-Apr-15 7 8714 378.1 16.80

17-Apr-15 24-Apr-15 8 8812 367.1 16.32 16.37 16.37

17-Apr-15 24-Apr-15 9 8889 360.1 16.00

3rd Trial 1:2.204:5.180 0.6 269.09 59 17-Apr-15 24-Apr-15 13 8843 295.6 13.14

17-Apr-15 24-Apr-15 14 8867 300.1 13.34 13.30 13.30

17-Apr-15 24-Apr-15 15 8754 302.2 13.43

4th Trial 1:3.082:6.450 0.6 220.00 48 17-Apr-15 24-Apr-15 19 8945 245.6 10.92

17-Apr-15 24-Apr-15 20 8956 251.2 11.16 11.14 11.14

17-Apr-15 24-Apr-15 21 8892 255.3 11.35

Section Officer Asst.Executive Engineer

K.B.J.N.L Quality Control

Division Bheemarayangudi

Executive Engineer

KBJNL Quality Control Division

Bheemarayanagudi

COMPARATIVE STATEMENT OF CEMENT CONCRETE MIX DESIGN FOR THE :Remodeling of

Distributries,Subdistributary from Dy-1 to Dy-24 and their laterals including structures SBC under ERM of NLBC

work.

Note-1: Super plasticzer had been used at the rate of 0.70liters/Cum of concrete for each trial

3.15

2.66

2.68

15.00 N/mm

1.65

3.5

Specific gravities of



Office of the



Sub Division-8

Bheemarayangudi

Name of Work

Name of Construction Division


:Remodeling of Distributries,Subdistributary from Dy-1 to Dy-24 and

their laterals including structures SBC under ERM of NLBC work.

Executive Engineer ,KBJNL ,SBC O&M Division B'gudi/Khanapur:Assistant Executive Engineer KBJNL SBC O & M Sub Divn. No-9



Hattigudur/,No.13 Doranahalli.

a) Cement

40M15

Ordinary Portland Cement

BHARATHI CEMENT,JK CEMENT

43 Grade

Grade Zone II of IS 383:1970

40 mm Crushed (Angular)


Code of requirement

Type of Cement

Brand Name of cement

Grade of cement

Sand/ Fine aggregate conforming to

Details of Trial Mix Design For ConcreteGrade of Concrete


c) Coarse aggregate

Degree of Workability

Moderate

0.90 Compacting factor

Good

Type of Exposure of concrete

Degree of Quality Control

fck=Characterstic Compressive strength at 28

days



Target Mean Strength

Fck= fck+ts

20.78 N/mm

Where

0.5

165

30

32.00 %

0.99

339.9

3.15

0.32

2.66

2.68

MIX

40M15





WHERE








Mix

1

40M15

W/c Ratio as per

SL-1 above

2

0.5


4

339.9


above

3

169.95



% adjustment In water content

0

0

3

3


factor(0.9-0.8)=0.1

%Adjustment of sand in Total aggregates

0

2

0

2

For sand conforming to Zone-II


free water-cement ratio

Change in condition

Trial No.1







339.90Kg/Cu.m 606.18Kg/Cu.m 1,297.81Kg/Cu.m 169.95Liter/Cu.m

Fine aggregate,fa

Coarse aggregate ,Ca

606.18Kg/Cu.m

1,297.81Kg/Cu.m

1 1.783 3.818 0.5


Total qualities of Ingradients and Mix Proportion

0.55

165

30

29.00 %

0.99

309

3.15

0.29

2.66

2.68

MIX

40M15

1 1.802 4.446 0.55









Fine aggregate,fa 556.92Kg/Cu.m

Coarse aggregate ,Ca 1,373.74Kg/Cu.m

40M15 0.55 169.95 309




WHERE






Mix W/c Ratio as per Water in Kg/Cum as per Sl-2 Cement in Kg/Cum(Column3/2)

1 2 3 4

Each 0.05 increase or decrease in 0 -1


3 -1

Trial No.2









0.6

165

30

30.00 %

0.99

283.25

3.15

0.3

2.66

2.68

MIX

40M15

Summary For 40 M15






1 2.057 4.836 0.6









Fine aggregate,fa 582.64Kg/Cu.m


40M15 0.6 169.95 283.2500




WHERE





1 2 3 4


3 0






Trial No.3







0.6

144

30

30.00 %

0.99

240.00

3.15

148.32Liters/Cu.m

0.3

2.66

2.68

MIX

40M15

Trial No.4


2.Based upon Experience Selection of Water and Sand Content:







Each 0.05 increase or decrease in 0 0For increase in compaction

factor(0.9-0.8)=0.1 3 0

3 0

240








1 2 3 4

40M15 0.6 144




WHERE





Fine aggregate,fa

610.86Kg/Cu.m 1,436.06Kg/Cu.m 169.95Liter/Cu.m


610.86Kg/Cu.m

1 2.545 5.984 0.6



240.00Kg/Cu.m

Sl.no

Mix proportion

40M15

W/C

RATIO

QTY OF

CEMENT

Kg/Cum

SLUMP

MM

DATE OF

CASTING

DATE OF

TESTING

SPECI

MEN

NO.

WEIGHT

OF

CUBES

(GRAMM)

APPLIED

LOAD KN

COMPRES

SIVE

STRENGTH

N/Sq.mm

AVG

COMPRES

SIVE

STRENGT

H

N/Sq.mm

7DAYS

COMPRES

SIVE

STRENGT

H N/Sq.mm

28 DAYS

COMPRESSIVE

STRENGTH

N/Sq.mm

1 2 3 4 5 6 7 8 9 10 11 12 13 14

1st

Trial 1:1.783:3.818 0.5 339.9 57 18-Apr-15 25-Apr-15 1 8912 427.1 18.98

18-Apr-15 25-Apr-15 2 8895 421.4 18.73 18.78 18.78

18-Apr-15 25-Apr-15 3 9065 419.1 18.63

2nd

Trial 1:1.802:4.446 0.55 309 54 18-Apr-15 25-Apr-15 5 8995 378.1 16.80

18-Apr-15 25-Apr-15 8 8996 368.1 16.36 16.69 16.69

18-Apr-15 25-Apr-15 9 8975 380.1 16.89

3rd

Trial 1:2.057:4.836 0.6 283.25 61 18-Apr-15 25-Apr-15 13 8887 370.1 16.45

18-Apr-15 25-Apr-15 14 9017 372.3 16.55 16.63 16.63

18-Apr-15 25-Apr-15 15 9024 380.1 16.894th

Trial 1:2.545:5.984 0.6 240.00 51 18-Apr-15 25-Apr-15 19 8936 343.1 15.25

18-Apr-15 25-Apr-15 20 8955 340.4 15.13 15.39 15.39

18-Apr-15 25-Apr-15 21 9066 355.1 15.78

COMPARATIVE STATEMENT OF CEMENT CONCRETE MIX DESIGN FOR THE :Remodeling of Distributries,Subdistributary

from Dy-1 to Dy-24 and their laterals including structures SBC under ERM of NLBC work.

Section Officer.Executive Engineer

K.B.J.N.L Quality Control

Division Bheemarayangudi


3.15

2.66

2.68

15.00 N/mm

1.65

3.5






Office of the



Sub Division-8

Bheemarayangudi

Name of Work:Remodeling of Distributries,Subdistributary from Dy-1 to Dy-24

and their laterals including structures SBC under ERM of NLBC

work.









c) Coarse aggregate





Good

Target Mean Strength Where

Fck= fck+ts fck=Characterstic Compressive strength at

20.78 N/mm t = Tolerance factor (Risk factor)


0.45

186

35

32.00 %

0.98

404.45

3.15

182.00Liters/Cu.m

0.32

2.66

2.68

MIX

20M15



Trial No.1



From table 4 of IS 10262 for 20mm Maximum size aggregate,sand confirming to grade

zone II, water content per cum of concrete=



3 -3






factor(0.9-0.8)=0.1 3 0

20M15 0.45 182.00Liters/Cu.m 404.45

4



From table 41 of Sp-23 1982 for 40mm aggregate, The amount of entrapped air in the wet concrete is 2%

.Taking this into account and applying equation No.2&3 of section 6.4 of SP-23 1982 page 107


Mix

W/c Ratio as per

SL-1 above



1 2 3



Fine aggregate,fa Kg/Cu.m 569.97Kg/Cu.m

Coarse aggregate ,Ca Kg/Cu.m 1,220.28Kg/Cu.m

WHERE






1 1.409 3.017 0.450



404.45 569.97Kg/Cu.m 1,220.28Kg/Cu.m 182.00Liter/Cu.m

0.5

186

35

33.00 %

0.98

364.00

3.15

182.00Liters/Cu.m

0.33

2.66

2.68

MIX

20M15

Trial No.2
















3 -2




WHERE




1.646 3.365 0.50

1 2 3 4

20M15 0.5 182.00Liters/Cu.m 364.00

599




1






364.00 599 1,225 182.00Liter/Cu.m

0.55

186

35

34.00 %

0.98

330.91

3.15

182.00Liters/Cu.m

0.34

2.66

2.68

MIX

20M15


Trial No.3





20M15 0.55 182.00Liters/Cu.m 330.91





182.00Liters/Cu.m



1 2 3 4

3 0

3 -1

Water can be reduced upto 5% by using the super plasticizer









WHERE




330.91 627 1,226 182.00Liter/Cu.m

1 1.895 3.705 0.55




Summary For 20 M15


Trial No.2 w/c=0.50 Cement =364 Kg/Cu.m







0.55

148.5

35

34.00 %

0.98

270.00

3.15

152.96Liters/Cu.m

0.34

2.66

2.68

MIX

20M15

3 4

20M15 0.55 148.5 270

1



Increase by 2% as per third trial which shows the under sand,required sand will

be content as % of total aggregate by absolute value =




Mix W/c Ratio as per Water in Kg/Cum as per Sl-2

2

3


Trial No.4


2.Based upon Experience Selection of Water





-1



1 2.481 4.856 0.55


Cement Kg/Cu.m

270.00Kg/Cu.m 670 1,311 148.50Liter/Cu.m










Fine Aggregate

Kg/Cu.m

Coarse Aggregate


WHERE



Sl.no

Mix proportion

20M15

W/C

RATIO

QTY OF

CEMENT

Kg/Cum

SLUMP

MM

DATE OF

CASTING

DATE OF

TESTING

SPECIM

EN NO.

WEIGHT

OF

CUBES

(GRAMM)

APPLIED

LOAD KN

COMPRES

SIVE

STRENGTH

N/Sq.mm

AVG

COMPRES

SIVE

STRENGT

H

N/Sq.mm

7DAYS

COMPRES

SIVE

STRENGT

H N/Sq.mm

28 DAYS

COMPRES

SIVE

STRENGT

H N/Sq.mm

1 2 3 4 5 8 9 10 11 12 13 14 15 15

1st Trial 1:1.409:3.017 0.45 404.45 66 19-Apr-15 26-Apr-15 1 8955 500 22.22

19-Apr-15 26-Apr-15 2 8933 502.1 22.32 22.30 22.30 22.30

19-Apr-15 26-Apr-15 3 9039 503.2 22.36

2nd Trial 1:1.646:3.365 0.5 364.00 61 19-Apr-15 26-Apr-15 7 8966 446.1 19.83

19-Apr-15 26-Apr-15 8 9024 441.2 19.61 19.70 19.70 19.70

19-Apr-15 26-Apr-15 9 8910 442.6 19.67

3rd Trial 1:1.895:3.705 0.55 330.91 62 19-Apr-15 26-Apr-15 13 8869 421.1 18.72

19-Apr-15 26-Apr-15 14 9038 420.1 18.67 18.77 18.77 18.77

19-Apr-15 26-Apr-15 15 8808 425.9 18.93

4th Trial 1:2.481:4.856 0.55 270.00 53 19-Apr-15 26-Apr-15 19 9064 331.1 14.72

19-Apr-15 26-Apr-15 20 8900 320.9 14.26 14.45 14.45 14.45

19-Apr-15 26-Apr-15 21 8958 323.6 14.38

Asst.Executive Engineer

K.B.J.N.L Quality Control Division

Bheemarayangudi

Executive Engineer


Bheemarayanagudi

Section Officer


Distributries,Subdistributary from Dy-1 to Dy-24 and their laterals including structures SBC under ERM of NLBC

work.


3.15

2.66

2.68

15.00 N/mm

1.65

3.5

20M15



Good



c) Coarse aggregate





Office of the



Sub Division-8

Bheemarayangudi



work.






Grade Zone II of IS 383:1970




Fck= fck+ts fck=Characterstic Compressive strength at 28

20.78 N/mm

Details of Trial Mix Design For ConcreteGrade of Concrete


Sand/ Fine aggregate conforming to

0.45

186

35

32.00 %

0.98

404.45

3.15

182.00Liters/Cu.m

0.32

2.66

2.68

MIX

20M15 404.45 562 1,203 182.00Liter/Cu.m

1 1.390 2.974 0.45




3 -3






factor(0.9-0.8)=0.1 3 0



Trial No.11. Selection of water cement ratio (As per fig-1 of IS:10262-1982) W/c=








Mix

W/c Ratio as per

SL-1 above



1 2 3 4

20M15 0.45 182.00Liters/Cu.m 404.45









WHERE




0.5

186

35

34.50 %

0.98

364.002

3.15

182.00

0.345

2.66

2.68

MIX

20M15 364.00Kg/Cu.m 626 1,198 182.00Liter/Cu.m

1 1.720 3.291 0.5












WHERE




1 2 3 4

20M15 0.5 182.00Liters/Cu.m 364.002







3 -0.5



Trial No.2








0.55

186

35

34.00 %

0.98

330.91

3.15

182.00Liters/Cu.m

0.34

2.66

2.68

MIX

20M15

Summary For 20 M15


Trial No.2 w/c=0.50 Cement =364 Kg/Cu.m




330.91 627 1,226 182.00Liter/Cu.m

1 1.895 3.705 0.550001511












WHERE




1 2 3 4

20M15 0.55 182.00Liters/Cu.m 330.91




Mix

W/c Ratio as per

SL-1 above





3 -1



Trial No.3








0.55

158.95

35

34.00 %

0.98

289.00

3.15

163.72Liters/Cu.m

0.34

2.66

2.68

MIX

20M15

1 2.266 4.436 0.55


Cement Kg/Cu.m

Fine Aggregate

Kg/Cu.m

Coarse Aggregate


289.00Kg/Cu.m 655 1,282 159





WHERE






20M15 0.55 158.95 289





Mix

W/c Ratio as per

SL-1 above



1 2 3 4

3 -1







Trial No.4







Sl.no

Mix proportion

20M15

W/C

RATIO

QTY OF

CEMENT

Kg/Cum

SLUMP

MM

DATE OF

CASTING

DATE OF

TESTING

SPECIM

EN NO.

WEIGHT

OF

CUBES

(GRAMM)

APPLIED

LOAD KN

COMPRES

SIVE

STRENGTH

N/Sq.mm

AVG

COMPRES

SIVE

STRENGT

H

N/Sq.mm

7DAYS

COMPRES

SIVE

STRENGT

H N/Sq.mm

28 DAYS

COMPRES

SIVE

STRENGT

H N/Sq.mm

1 2 3 4 5 8 9 10 11 12 13 14 15 15

1st Trial 1:1.390:2.974 0.45 404.45 67 20-Apr-15 27-Apr-15 1 8955 506.8 22.52

20-Apr-15 27-Apr-15 2 8933 508.1 22.58 22.59 22.59

20-Apr-15 27-Apr-15 3 9039 510.2 22.68

2nd Trial 1:1.720:3.291 0.5 364.00 63 20-Apr-15 27-Apr-15 7 8966 445.6 19.80

20-Apr-15 27-Apr-15 8 9024 441.8 19.64 19.67 19.67 19.67

20-Apr-15 27-Apr-15 9 8910 440.1 19.56

3rd Trial 1:1.895:3.705 0.55 330.91 66 20-Apr-15 27-Apr-15 13 8869 410.6 18.25

20-Apr-15 27-Apr-15 14 9038 409.1 18.18 18.12 18.12 18.12

20-Apr-15 27-Apr-15 15 8808 403.1 17.92

4th Trial 1:2.266:4.436 0.55 289.00 54 20-Apr-15 27-Apr-15 19 8945 380.5 16.91

20-Apr-15 27-Apr-15 20 9001 389.3 17.30 17.18 17.18 17.18

20-Apr-15 27-Apr-15 21 9012 390.1 17.34


Asst.Executive Engineer


Bheemarayangudi

Executive Engineer


Bheemarayanagudi

Section Officer


Distributries,Subdistributary from Dy-1 to Dy-24 and their laterals including structures SBC under ERM of NLBC work.

3.15

2.66

2.68

20.00 N/mm

1.65

4






Office of the



Sub Division-8

Bheemarayangudi



work.









c) Coarse aggregate





Good


Fck= fck+ts fck=Characterstic Compressive strength at

26.60 N/mm t = Tolerance factor (Risk factor)


0.4

186

35

31.00 %

0.98

455.0025

3.15

182.00Liters/Cu.m

0.31

2.66

2.68

MIX

20M20








3 -4


Trial No.1






factor(0.9-0.8)=0.1 3 0

20M20 0.4 182.00Liters/Cu.m 455.0025





Mix

W/c Ratio as per

SL-1 above



1 2 3 4





WHERE





1 1.167 2.618 0.4



455.00Kg/Cu.m 531 1,191 182.00Liter/Cu.m


0.45

186

35

32.00 %

0.98

404.447

3.15

182.00

0.32

2.66

2.68

MIX

20M20

Trial No.2













Mix

W/c Ratio as per

SL-1 above




3 -3




WHERE




1.390 2.974 0.45

1,203 182.00Liter/Cu.m

1 2 3 4

20M20 0.45 182.00Liters/Cu.m 404.45

562



Cement Fine Aggregate Coarse Aggregate

1


Water






404.45Kg/Cu.m 562

0.5

186

35

33.00 %

0.98

364.00

3.15

182.00Liters/Cu.m

0.33

2.66

2.68

MIX

20M20





1 2 3 4

20M20 0.5 182.00Liters/Cu.m 364.002

-2





WHERE



Mix

W/c Ratio as per

SL-1 above


above



1 1.646 3.365 0.5



Coarse Aggregate Water

364.00Kg/Cu.m 599 1,225 182.00Liter/Cu.m





Cement Fine Aggregate

Summary For 40 M15




As per agreement for 20M20 the limit for cement content is 330Kg/Cu.m






3


Trial No.3






0.5

165

35

33.00 %

0.98

330.00

3.15

169.95

0.33

2.66

2.68

MIX

20M20

20M20 0.5 165 330

1



169.95Liters/Cu.m



Mix

W/c Ratio as per

SL-1 above


above

2 3 4


Trial No.4







-0.5


Required water content=






3

WHERE









1 1.876 3.836 0.50


Cement Kg/Cu.m

Fine Aggregate

Kg/Cu.m

Coarse Aggregate


330.00Kg/Cu.m 619 1,266 165

Sl.no

Mix proportion

20M20

W/C

RATIO

QTY OF

CEMENT

Kg/Cum

SLUMP

MM

DATE OF

CASTING

DATE OF

TESTING

SPECIM

EN NO.

WEIGHT

OF

CUBES

(GRAMM)

APPLIED

LOAD KN

COMPRESS

IVE

STRENGTH

N/Sq.mm

AVG

COMPRES

SIVE

STRENGT

H

N/Sq.mm

7DAYS

COMPRES

SIVE

STRENGTH

N/Sq.mm

28 DAYS

COMPRES

SIVE

STRENGTH

N/Sq.mm

1 2 3 4 5 6 7 8 9 10 11 12 13 13

1st Trial 1:1.167:2.618 0.4 455.00 68 21-Apr-15 28-Apr-15 1 9003 600 26.67

21-Apr-15 28-Apr-15 2 9092 600.9 26.71 26.54 26.54 26.54

21-Apr-15 28-Apr-15 3 9064 590.7 26.25

2nd Trial 1:1.390:2.974 0.45 404.447 60 21-Apr-15 28-Apr-15 1 9068 534.5 23.76

21-Apr-15 28-Apr-15 2 9074 539.2 23.96 23.79 23.79 23.79

21-Apr-15 28-Apr-15 3 9051 531.9 23.64

3rd Trial 1:1.646:3.365 0.5 364.00 67 21-Apr-15 28-Apr-15 13 9041 460.3 20.46

21-Apr-15 28-Apr-15 14 9018 468.1 20.80 20.24 20.24 20.24

21-Apr-15 28-Apr-15 15 9073 438.1 19.47

4th Trial 1:1.876:3.836 0.5 330.00 51 21-Apr-15 28-Apr-15 19 8991 418.1 18.58

21-Apr-15 28-Apr-15 20 9038 412.8 18.35 18.39 18.39 18.39

21-Apr-15 28-Apr-15 21 9082 410.6 18.25

COMPARATIVE STATEMENT OF CEMENT CONCRETE MIX DESIGN FOR THE :Remodeling of Distributries,Subdistributary

from Dy-1 to Dy-24 and their laterals including structures SBC under ERM of NLBC work.


Section Officer Asst.Executive Engineer


Bheemarayangudi

Executive Engineer


Bheemarayanagudi

40M10 20M15 20M15 (Paver) 20M20

1 Cement in kg/cu.m of concrete 220.00 270 289 330

2Fine aggregates in kg/cu.m of

concrete678 670 655 619

20.59425 20.35125 19.895625 18.802125

3Coarse aggregates in kg/cu.m of

concrete1,419 1,311 1,282 1,266

4Water+superplastisizer in

liters/cu.m of concrete132+0.70 148.5+0.8 159+0.8 165+0.95

5 Water cement ratio 0.60 0.55 0.55 0.50

6 Mix proportion by weight 1:3.082:6.450 1:2.481:4.856 1:2.266:4.436 1:1.876:3.836

7 Slump in mm 48 53 54 51

9 Type of coarse aggregates Trap Trap Trap Trap

10Grade of cements (Bharati

Cement,J K CEMENT)43 Grade OPC 43 Grade OPC 43 Grade OPC 43 Grade OPC

SO

Notes:

3.Coarse aggregate of 20mm, & 10mm shall be used in the ratio of 60%:40 % respectively for 20m15 ,20m15( paver

),20m20

Proposed Cement Concrete Mix design for different Grades of concrete

2.Coarse aggregate of 40mm, 20mm, & 10mm shall be used in the ratio of 50:30:20% respectively for 40M10

Name of Work: Remodeling of Distributries,Subdistributary from Dy-1 to Dy-24 and their laterals including structures SBC

under ERM of NLBC work.

SL.NO PARTICULARSGRADES OF CONCRETE

1.Correction of water absorption of sand and coarse aggregate is to be applied at site.

Executive Engineer

4. The mix proportion of Design mix is based on the weight of materials. Hence weigh batching should be adopted.

5. The design mix proportion may change depending on the physical characteristics of materials.

Superintending Engineer, (QCD),

Managing Directors Office, KBJNL,

Camp:Bheemarayanagudi.

APPROVED

1. For change in physical characteristics of materials if any, re-design mix should be got approved for change of materials.

2. Specific gravity of Cement, fine aggregate and coarse aggregate should be tested regularly by the A.E.E. Q.C. Sub-Dn

No.8, Bheemarayanagudi and report if any change in specific gravity for re-designing the concrete.

3. Admixture should be added for enhancing the workability of concrete according to the tender condition.


KBJNL Quality Control Sub Div No.8

Bheemarayanagudi


Bheemarayangudi

concerete ,mix design

Documents

ratio of fine aggregate

sand content

mfine aggregate kgcu

mcoarse aggregate kgcu

cement bharathi cement

required water content

maximum size aggregate

free watercement ratio0