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Standard Mix Design

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Concrete mix design
39
Sieve Analysis of 1) Laboratory Sample No. ______________ 2) Type of sample ____________________ 3) Source___________________________ 4) Total weight of sample 52.367 40 mm 0.84 1.61 1.61 98.39 20 mm 23.20 44.30 45.91 54.09 10 mm 26.20 50.03 95.94 4.06 4.75 mm 0.00 0.00 95.94 4.06 I.S. Sieve size Weight Retained Percent Retained Cumulative Percent Retained Cumulative Percent Passing
Transcript
Page 1: Standard Mix Design

Sieve Analysis of Aggregates

1) Laboratory Sample No. ______________

2) Type of sample ____________________

3) Source___________________________

4) Total weight of sample 52.367

Limits

40 mm 0.84 1.61 1.61 98.39 100

20 mm 23.20 44.30 45.91 54.09 95

10 mm 26.20 50.03 95.94 4.06 0

4.75 mm 0.00 0.00 95.94 4.06 0

I.S. Sieve size

Weight Retained

Percent Retained

Cumulative Percent

Retained

Cumulative Percent Passing

Page 2: Standard Mix Design

2.36 mm 0.00 0.00 95.94 4.06 ---

1.18 mm 0.00 0.00 95.94 4.06 ---

600 µ 0.00 0.00 95.94 4.06 ---

300 µ 0.00 0.00 95.94 4.06 ---

150 µ 0.00 0.00 95.94 4.06 ---

75 µ 0.00 0.00 95.94 4.06

Pan 2.13 4.06 100.00 0.00

Weight 52.367 F.M. 7.19

Page 3: Standard Mix Design

Sieve Analysis of Aggregates

Date of Sampling ___________

Date of Testing _____________

Limits

100

100

20

5

Page 4: Standard Mix Design

---

---

---

---

---

Page 5: Standard Mix Design

Sieve Analysis of Aggregates

1) Laboratory Sample No. ______________

2) Type of sample ____________________

3) Source___________________________

4) Total weight of sample 5316

I.S. Sieve size

Limits

40 mm 0.00 0.00 0.00 100.00 100

20 mm 0.00 0.00 0.00 100.00 100

12.5 mm 15.00 0.28 0.28 99.72 100

10 mm 1500.00 28.22 28.50 71.50 85

Weight Retained

Percent Retained

Cumulative Percent Retained

Cumulative Percent Passing

Page 6: Standard Mix Design

4.75 mm 3603.00 67.78 96.28 3.72 0

2.36 mm 100.00 1.88 98.16 1.84 0

1.18 mm 0.00 0.00 98.16 1.84 ---

600 µ 0.00 0.00 98.16 1.84 ---

300 µ 0.00 0.00 98.16 1.84 ---

150 µ 0.00 0.00 98.16 1.84 ---

75 µ 0.00 0.00 98.16 1.84

Pan 98.00 1.84 100.00 0.00

Weight 5316 F.M. 6.16

Page 7: Standard Mix Design

Sieve Analysis of Aggregates

Date of Sampling ___________

Date of Testing _____________

Limits

100

100

100

100

Page 8: Standard Mix Design

20

5

---

---

---

---

Page 9: Standard Mix Design

Sieve Analysis of Aggregates

1) Laboratory Sample No. ______________ Date of Sampling ___________

2) Type of sample ____________________

3) Source___________________________ Date of Testing _____________

4) Total weight of sample 2975

I.S. Sieve size Limits

Zone II Zone II

40 mm 0.00 0.00 0.00 100.00 100 100

20 mm 0.00 0.00 0.00 100.00 100 100

12.5 mm 0.00 0.00 0.00 100.00 100 100

10 mm 0.00 0.00 0.00 100.00 100 100

Weight Retained

Percent Retained

Cumulative Percent Retained

Cumulative Percent Passing

Page 10: Standard Mix Design

4.75 mm 410.00 13.78 13.78 86.22 90 100

2.36 mm 825.00 27.73 41.51 58.49 75 100

1.18 mm 645.00 21.68 63.19 36.81 55 90

600 µ 355.00 11.93 75.13 24.87 35 59

300 µ 210.00 7.06 82.18 17.82 8 30

150 µ 140.00 4.71 86.89 13.11 0 20

75 µ 0.00 0.00 86.89 13.11 0 10

Pan 390.00 13.11 100.00 0.00

Weight 2975 F.M. 3.63

Page 11: Standard Mix Design

Sieve Analysis of Aggregates

Date of Sampling ___________

Date of Testing _____________

Page 12: Standard Mix Design

Sieve Analysis of Aggregates

1) Laboratory Sample No. ______________ Date of Sampling ___________

2) Type of sample ____________________

3) Source___________________________ Date of Testing _____________

4) Total weight of sample 991

I.S. Sieve size Limits

Zone II Zone II

40 mm 0.00 0.00 0.00 100.00 100 100

20 mm 0.00 0.00 0.00 100.00 100 100

12.5 mm 0.00 0.00 0.00 100.00 100 100

10 mm 0.00 0.00 0.00 100.00 100 100

Weight Retained

Percent Retained

Cumulative Percent Retained

Cumulative Percent Passing

Page 13: Standard Mix Design

4.75 mm 0.00 0.00 0.00 100.00 90 100

2.36 mm 0.00 0.00 0.00 100.00 75 100

1.18 mm 13.00 1.31 1.31 98.69 55 90

600 µ 805.00 81.23 82.54 17.46 35 59

300 µ 139.00 14.03 96.57 3.43 8 30

150 µ 31.00 3.13 99.70 0.30 0 20

75 µ 2.00 0.20 99.90 0.10 0 3

Pan 1.00 0.10 100.00 0.00

Weight 991 F.M. 2.80

Page 14: Standard Mix Design

Sieve Analysis of Aggregates

Date of Sampling ___________

Date of Testing _____________

Page 15: Standard Mix Design

Sieve Analysis of Aggregates

1) Laboratory Sample No. ______________ Date of Sampling ___________

2) Type of sample Crushed Sand

3) Source MPE site Date of Testing _____________

4) Total weight of sample 1000

I.S. Sieve size Limits

Zone II Zone II

40 mm 0.00 0.00 0.00 100.00 100 100

20 mm 0.00 0.00 0.00 100.00 100 100

10 mm 0.00 0.00 0.00 100.00 100 100

4.75 mm 0.00 0.00 0.00 100.00 90 100

2.36 mm 132.80 13.28 13.28 86.72 75 100

1.18 mm 363.20 36.32 49.60 50.40 55 90

600 µ 138.80 13.88 63.48 36.52 35 59

300 µ 96.60 9.66 73.14 26.86 8 30

150 µ 69.40 6.94 80.08 19.92 0 20

75 µ 49.30 4.93 85.01 14.99 0 3

Pan 149.90 14.99 100.00 0.00

Weight 1000.00 F.M. 2.80

Weight Retained

Percent Retained

Cumulative Percent Retained

Cumulative Percent Passing

Page 16: Standard Mix Design

COMBINED GRADING GRAPH

Individual Grading Combined Grading

(mm) 20mm 10mm C.Sand 30% 18% 0% 52%

40 100.00 100.00 100.00 100.00 100.00

20 87.17 100.00 100.00 100.00 96.15

10 3.77 60.90 100.00 100.00 64.09

4.75 0.00 0.63 98.00 88.80 46.29

2.36 0.00 0.00 90.60 72.00 37.44

1.18 0.00 0.00 66.00 33.20 17.26

0.6 0.00 0.00 51.80 17.60 9.15

0.3 0.00 0.00 31.80 4.20 2.18

0.15 0.00 0.00 18.40 0.50 0.26

Seive Size

NaturalSand

Page 17: Standard Mix Design

COMBINED GRADING GRAPH

L. Limit U. Limit

100 100

88 100

55 71

40 58

28 47

18 35

12 25

7 14

3 8

Limits For The Pump Mix

4020104.752.361.180.60.30.15

0

10

20

30

40

50

60

70

80

90

100

Combined Grading

Combined Grading L. Limit U. Limit

Sieve Size

% p

as

sin

g

Page 18: Standard Mix Design

COMBINED GRADING GRAPH

4020104.752.361.180.60.30.15

0

10

20

30

40

50

60

70

80

90

100

Combined Grading

Combined Grading L. Limit U. Limit

Sieve Size

% p

as

sin

g

Page 19: Standard Mix Design

Combined Grading of Aggregates

Sieve Analysis

Aggregates % 20mm 10mm 4.75mm 2.36 mm 1.18 mm 600 µ 300 µ 150 µ 75 µ

20 mm 93.23 0.58

10 mm 100.00 78.54 2.74 0.95

C.S 100.00 100.00 100.00 86.72 50.40 36.52 26.86 19.92 14.99

N.S 100.00 98.75 83.49 63.04 23.89 9.88 3.70 1.75 1.00

Combined Grading of Aggregates

Trial 1 (Proposed Gradation)

Aggregates % 20mm 10mm 4.75mm 2.36 mm 1.18 mm 600 µ 300 µ 150 µ 75 µ

20 mm 30.0 27.97 0.17 0.00 0.00 0.00 0.00 0.00 0.00 0.00

10 mm 20.0 20.00 15.71 0.55 0.19 0.00 0.00 0.00 0.00 0.00

C.S 30.0 30.00 30.00 30.00 26.02 15.12 10.96 8.06 5.98 4.50

N.S 20.0 20.00 19.75 16.70 12.61 4.78 1.98 0.74 0.35 0.20

Total 100.00 97.97 65.63 47.25 38.81 19.90 12.93 8.80 6.33 4.70

20mm10mm4.75mm2.36mm1.18mm0.6mm0.3mm0.15mm0

10

20

30

40

50

60

70

80

90

100

Combined Grading Curve

Sieve Sizes

% p

as

sin

g

Page 20: Standard Mix Design

Calculating the mix proportions

Water Cement Fly Ash Microsilica Slurry 20 mm 10 mm C. Sand N. Sand

980 = 172 + 400 + 0 + 0 + 0.300x + 0.180x + 0.000x + 0.520x

3.15 2.2 2.1 2.9 2.9 2.9 2.75

x = 681.02 = 1920

0.355

20 mm = 576 30%

10 mm = 346 18%

C. Sand = 0 0%

N. Sand = 999 52%

Page 21: Standard Mix Design

Calculation for the yield of per cum. of concrete :

Material Weight Specific Solid volume

kg gravity

Cement 270 3.15 0.0857

Fly Ash 80 2.2 0.0364

Microsilica Slurry 0 2.1 0.0000

GGBS 0 2.7 0.0000

Coarse Aggregate, 20 mm 625 2.88 0.2170

Coarse Aggregate, 10 mm 410 2.8 0.1464

Fine Aggregate (Crushed sand) 100 2.74 0.0365

Fine Aggregate (Natural sand 1) 785 2.7 0.2907

Fine Aggregate (Natural sand 2) 0 2.6 0.0000

Water 158 1.00 0.1580

0.9708

Entrapped air 2% 0.0200

Total 2428 0.9908

Yield of concrete per cum = 990.76 litres

Unit weight or density of concrete = 2428 = 2450.65

0.9908

m3

kg/m3

Page 22: Standard Mix Design

Form E1304/21/2023Calculation of water required in concrete

DATA :Cement 270Fly Ash 80Fly Ash as aggregate 0GGBS 0Microsilica Powder 0Microsilica Slurry 0w/c 0.514Water 18020 mm 62510 mm 410Crushed sand 100Natural sand 785Pussa Sand 0Admixture 1 1.00 % 3.5Admixture 2 0.00 % 0Admixture 3 0.00 % 0

1) Calculation for absorption of water by aggregates:Trial Mix Qty. 0.05 m3

Material Wt/cu.m

Cement 270 270 13.50Fly Ash 80 80 4.00

Fly Ash as aggregate 0 0 0.00GGBS 0 0 0.00

Microsilica Powder 0 0 0.00Microsilica Slurry 0 0 0.00

20-10 mm 625.00 1 0 -1 6.25 618.75 30.9410-5 mm 410.00 1 0 -1 4.10 405.90 20.30C. Sand 100.00 2 0 -2 2.00 98.00 4.90N. Sand 785.00 2 7 5 -39.25 824.25 41.21

Pussa Sand 0.00 0 0 0 0.00 0.00 0.00Admixture 1 1% -0.01 0.50Admixture 2 0 0.00 0.00Admixture 3 0 0.00 0.00Free Water 180.00 Total -26.91 153.10 7.65

Water absorption %

Free moisture content

Excess moisture content

Water correction

Corrected wt.

Corrected wt. for trial mix

Page 23: Standard Mix Design

Sieve Size

150mm

75mm

37.5mm

20mm 100 100

10mm 70 55

4.75mm 48 35

2.36mm 42 28

1.18mm 34 21

0.6mm 27 14

0.3mm 12 3

0.15mm 5 0

20mm10mm4.75mm2.36mm1.18mm0.6mm0.3mm0.15mm0

10

20

30

40

50

60

70

80

90

100 100

70

4842

3427

125

100

55

3528

2114

30

Combined Grading Curve for pumpable concrete

Sieve Sizes

% p

assi

ng

Page 24: Standard Mix Design

Volume of the container = 4.85 litres

Step 1

20mm 10mm Sand 1 Sand 2

Specific Gravity 2.7 2.8 2.7 2.7

Theoretical wt. 13.10 13.58 13.10 13.10

Actual Wt. 7.52 7.54 9.05 9.2

Difference in wt. 5.58 6.04 4.05 3.90

% voids 42.57 44.48 30.89 29.74

Step 2

Add different proportions of 10 mm to 20 mm for reducing the voids

Trials % variations Total wt. Added

1 0% 5.58 7.62

2 5% 5.85 7.58

3 -5% 5.30 7.60

4 10% 6.13 7.58

5 -10% 5.02 7.57

Maximum wt. 7.62

Difference in wt. 5.48

Step 3

Add different proportions of Sand 1 to (20mm+10mm) for reducing the voids

Trials % variations Total wt. Added

1 0% 5.48 9.70

2 5% 5.75 9.50

3 -5% 5.20 9.43

4 10% 6.02 9.65

5 -10% 4.93 9.55

Maximum wt. 9.70

Difference in wt. 3.40

Step 4

Add different proportions of Sand 2 to (20mm+10mm+Sand 1) for reducing the voids

Trials % variations Total wt. Added

1 0% 3.40 9.75

2 5% 3.56 9.55

3 -5% 3.23 9.53

4 10% 3.73 9.70

5 -10% 3.06 9.60

Maximum wt. 9.75

Difference in wt. 3.35

20 mm 10 mm Sand 1 Sand 2

7.52 5.58 5.48 3.40

Wt. Of mixed agg. In

container

Wt. Of mixed agg. In

container

Wt. Of mixed agg. In

container

Page 25: Standard Mix Design

34.24% 25.38% 24.93% 15.46%

Page 26: Standard Mix Design

Form E1404/21/2023

Grading of coarse aggregates by laboratory method

Specific gravity (S) 2.7

Vol. Of container (V) 4.85 litres

13.10 kgs

Compact the aggregates manually in the container.

7.52 kgs

5.575 kgs

% voids = (W1-W2)/W1 42.57%

7.544 kgs

% voids = (W1-W3)/W1 42.39%

9.05 kgs

% voids = (W1-W4)/W1 30.89%

Add different proportions of 10mm to 20mm for reducing the voids.

Trial 1: Add 5.58 kgs

Trial 2: Add 5.58 + 10% = 6.14 kgs

Trial 3: Add 5.58 - 10% = 5 kgs

Check which combination gives maximum wt.

Considering that trial1 gives maximum wt.

Wt. of 10mm to be added to 20mm 5.575 kgs

7.62 kgs

% voids = (W1-W5)/W1 41.81%

5.475 kgs

Add different proportions of sand to (20mm+10mm) for reducing the voids.

Trial 1: Add 5.48 kgs

Trial 2: Add 5.48 + 10% = 6.03 kgs

Trial 3: Add 5.48 - 10% = 4.93 kgs

Check which combination gives maximum wt.

Considering that trial1 gives maximum wt.

Wt. of sand to be added 5.475 kgs

9.7 kgs

% air voids = (W1-W6)/W1 25.93%

These voids in the aggregates should be filled with (cement + water) paste.

Theo. Wt. of 100% compacted aggregate in container (W1) = S x V

Actual wt. of 20mm aggregate in container (W2)

Difference in wt. (W1-W2)

Actual wt. of 10mm aggregate in container (W3)

Actual wt. of Sand in container (W4)

Actual wt. of 10mm+20mm in container (W5)

Difference in wt. (W1-W5)

Actual wt. of 10mm+20mm+Sand in container (W6)

Page 27: Standard Mix Design

% of Fly ash in Concrete

= 51.25%

= 22.26%

= 7.07%

= 13.98%

= 64.58%

= 27.57%

= 4.15%

CaO = 3.60% CaO in fly ash

P =

= 4.277377

10.22637

C3S C3S in portland cement

C2S C2S in portland cement

C3A C3A in portland cement

C4AF C4AF in portland cement

SiO2 SiO2 in fly ash

Al2O3 Al2O3 in fly ash

Fe2O3 Fe2O3 in fly ash

(C3S/22.833)+(C2S/21.531)+(C3A/22.517)+(C4AF/24.299)-(28.04/37.048){(C3S/111.144)+(C2S/74.096)}

[(C3S/22.833)+(C2S/21.531)+(C3A/22.517)+(C4AF/24.299)-(28.04/37.048){(C3S/111.144)+(C2S/74.096)}]+(SiO2/15.022)+(Al2O3/16.993)+(Fe2O3/26.617)-(CaO/28.04)

Page 28: Standard Mix Design

= 42%

Page 29: Standard Mix Design

% of Fly ash in Concrete

Page 30: Standard Mix Design

Calculation of Heat Balance for Concrete

Material Wt/cu.m Sp. Heat Temp. Wt. x Sp. Heat Temp. x A"

(kgs) (kJ/kg ºC) (ºC) A"

Cement 360.00 0.92 34.00 331.20 11260.80

Microsilica Slurry 72.00 0.92 28.00 66.24 1854.72

20-10 mm 700.00 0.84 34.00 585.20 19896.80

10-5 mm 400.00 0.84 34.00 334.40 11369.60

Natural Sand 860.00 0.84 34.00 718.96 24444.64

Crushed Sand 100.00 0.84 34.00 83.60 2842.40 122.4

Free water -33.60 4.18 28.00 -140.45 -3932.54

Ice 120.00 2.09 -6.00 250.80 -41584.80

Water in Sand 17.20 4.18 34.00 71.90 2444.46

Water in C.A 11.90 4.18 34.00 49.74 1691.23

Total 2607.50 2351.59 30287.31

Min. temp. = 30287.31 = 12.88 °C

2351.59

Placing temperature of concrete = 25 °C

F13
A" x T - W x 334 334kJ is the heat of fusion of ice.
Page 31: Standard Mix Design

Total % of ice required (as compared to free water to be added) = 139%

Page 32: Standard Mix Design

A" x T - W x 334334kJ is the heat of fusion of ice.

F13:

Page 33: Standard Mix Design

Naini ProjectCombined Grading of Aggregates

Sieve Analysis

Aggregates % 25mm 20mm 13mm 10mm 4.75mm 2.36 mm 1.18 mm 600 µ 300 µ 150 µ 75 µ

20 mm 100 75.28 2.6 0.21 0.0510 mm 100 98.78 83.68 54.02 6.13 2.18C.S 100 100.00 100.00 100.00 100.00 86.72 50.40 36.52 26.86 19.92 14.99N.S 100 100.00 100.00 100.00 87.54 68.97 26.31 9.41 3.66 1.80 0.72Pussa Sand 100 100.00 100.00 98.82 86.23 72.68 36.82 15.83 3.13 0.66 0.29

Combined Grading of Aggregates

Trial 1 (Proposed Gradation)Aggregates % 25mm 20mm 13mm 10mm 4.75mm 2.36 mm 1.18 mm 600 µ 300 µ 150 µ 75 µ

20 mm 32.0 32.00 24.09 0.83 0.07 0.02 0.00 0.00 0.00 0.00 0.00 0.0010 mm 18.0 18.00 17.78 15.06 9.72 1.10 0.39 0.00 0.00 0.00 0.00 0.00C.S 0.0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00N.S 50.0 50.00 50.00 50.00 50.00 43.77 34.49 13.16 4.71 1.83 0.90 0.36Pussa Sand 0.0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

Total 100.00 100.00 91.87 65.89 59.79 44.89 34.88 13.16 4.71 1.83 0.90 0.36

25mm20mm13mm10mm4.75mm2.36mm1.18mm0.6mm0.3mm0.15mm

0

10

20

30

40

50

60

70

80

90

100

Combined Grading Curve

Sieve Sizes

% p

as

sin

g

Page 34: Standard Mix Design

Naini Project

25mm20mm13mm10mm4.75mm2.36mm1.18mm0.6mm0.3mm0.15mm

0

10

20

30

40

50

60

70

80

90

100

Combined Grading Curve

Sieve Sizes

% p

as

sin

g


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