7/31/2019 Copy of Standard Deviation

1/3

Location

Part

of

Structure

Date of

Casting

Date of

Testing

28 Days

Comp.

Strength

in N /mm2

Av. Moving Four

Consc. Comp.

Strength in N / mm2

Remarks

A4 - 14th Floor Slab 2/2/2012 1/3/2012 28.56

A4 - 14th Floor Slab 2/2/2012 1/3/2012 28.41

B6 - 10th Floor Slab 2/2/2012 1/3/2012 28.57

B3 - 4th Floor Slab 2/2/2012 1/3/2012 28.36 28.48

B3 -11th Floor Slab 2/2/2012 1/3/2012 28.56 28.48

C3 - 7th Floor Slab 3/2/2012 2/3/2012 28.13 28.41

C3 - 7th Floor Slab 3/2/2012 2/3/2012 28.48 28.38

B1 - 17th Floor Slab 3/2/2012 2/3/2012 28.26 28.36

B4 - 11th Floor Slab 4/2/2012 3/3/2012 28.59 28.37

C2 - 8th Floor Slab 4/2/2012 3/3/2012 28.55 28.47

D2 - 11th Floor Slab 4/2/2012 3/3/2012 28.32 28.43

B5 - 10th Floor Slab 6/2/2012 5/3/2012 28.25 28.43

B5 - 10th Floor Slab 6/2/2012 5/3/2012 28.52 28.41

C1 - 8th Floor Slab 6/2/2012 5/3/2012 28.81 28.48

A7 - 11th Floor Slab 7/2/2012 6/3/2012 28.6 28.55

D1 - 9th Floor Slab 8/2/2012 7/3/2012 28.41 28.59

A5 - 6th Floor Slab 8/2/2012 7/3/2012 28.51 28.58

A3 - 15th Floor Slab 9/2/2012 8/3/2012 28.45 28.49

A3 - 15th Floor Slab 9/2/2012 8/3/2012 28.33 28.43

A6 - 12th Floor Slab 9/2/2012 8/3/2012 28.44 28.43

A6 - 12th Floor Slab 9/2/2012 8/3/2012 28.2 28.36

B2 - 17th Floor Slab 10/2/2012 9/3/2012 30.96 28.98

B1 - 17th Floor Slab 10/2/2012 9/3/2012 31.7 29.83

C4 - 5th Floor Slab 10/2/2012 9/3/2012 30.81 30.42

C2 - 8th Floor Slab 10/2/2012 9/3/2012 31.99 31.37

C2 - 8th Floor Slab 10/2/2012 9/3/2012 31.55 31.51

B4 - 11th Floor Slab 11/2/2012 10/3/2012 29.18 30.88

C3 - 8th Floor Slab 11/2/2012 10/3/2012 29.47 30.55

C3 - 8th Floor Slab 11/2/2012 10/3/2012 28.14 29.59

D2 - 8th Floor Slab 11/2/2012 10/3/2012 30.66 29.36

( X - X )2

1.18N - 1

AssumedStandardD

eviation=4N

/mm

2

29

30

25

26

27

28

21

22

23

24

17

18

19

20

13

14

15

16

SHAPOORJI PALLONJI & CO. LTD.

Grade of Concrete : M20 Month : February

Client

Project

DLF

STANDARD DEVIATION

DLF Westend Heights

Sl. No.

1

2

3

4

5

6

Acceptance criteria of compressive Strength of Concrete As Per IS : 456, 2000 (Clause 16.1 & 16.3) - Standard Deviation

11

12

7

8

9

10

PMC Colliers International

Concrator SPCL

7/31/2019 Copy of Standard Deviation

2/3

LocationPart

of

Structure

Date of

Casting

Date of

Testing

28 DaysComp.

Strength

in N /mm2

Av. Moving FourConsc. Comp.

Strength in N / mm2

Remarks

C4 - 6th Floor Slab 1/3/2012 29/03/2012 28.44

A5 - 7th Floor Slab 1/3/2012 29/03/2012 28.44

A5 - 7th Floor Slab 1/3/2012 29/03/2012 27.99

C3 - 9th Floor Slab 2/3/2012 30/03/2012 28.44 28.33

C3 - 9th Floor Slab 2/3/2012 30/03/2012 27.99 28.22

A5 - 7th Floor Slab 3/3/2012 31/03/2012 28.29 28.18

C1 - 9th Floor Slab 3/3/2012 31/03/2012 27.55 28.07

D2 - 12th Floor Slab 3/3/2012 31/03/2012 27.55 27.85

A6 - 13th Floor Slab 3/3/2012 31/03/2012 28.88 28.07

A6 - 13th Floor Slab 3/3/2012 31/03/2012 27.55 27.88

B4 - 12th Floor Slab 5/3/2012 2/4/2012 27.99 27.99

C1 - 9th Floor Slab 5/3/2012 2/4/2012 28.58 28.25

A2 - 16th Floor Slab 5/3/2012 2/4/2012 28.44 28.14

A2 - 16th Floor Slab 5/3/2012 2/4/2012 28.88 28.47

A3 - 16th Floor Slab 6/3/2012 3/4/2012 28.44 28.59

A3 - 16th Floor Slab 6/3/2012 3/4/2012 28.14 28.48

B2 - 18th Floor Slab 7/3/2012 4/4/2012 30.66 29.03

C3 - 9th Floor Slab 7/3/2012 4/4/2012 30.36 29.40

C3 - 9th Floor Slab 7/3/2012 4/4/2012 30.07 29.81

B1 - 18th Floor Slab 7/3/2012 4/4/2012 30.51 30.40

B6 - 11th Floor Slab 9/3/2012 6/4/2012 29.03 29.99

B3 - 12th Floor Slab 10/3/2012 7/4/2012 28.44 29.51

B3 - 12th Floor Slab 10/3/2012 7/4/2012 29.18 29.29

C4 - 6th Floor Slab 10/3/2012 7/4/2012 29.77 29.11

D2 - 12th Floor Slab 10/3/2012 7/4/2012 29.18 29.14

D2 - 12th Floor Slab 10/3/2012 7/4/2012 29.18 29.33

B5 - 12th Floor Slab 12/3/2012 9/4/2012 30.51 29.66

B5 - 12th Floor Slab 12/3/2012 9/4/2012 30.06 29.73

C2 - 10th Floor Slab 12/3/2012 9/4/2012 30.21 29.99

C1 - 10th Floor Slab 12/3/2012 9/4/2012 31.25 30.51

A2 - 16th Floor Slab 12/3/2012 9/4/2012 30.21 30.43

A6 - 13th Floor Slab 13/3/2012 10/4/2012 29.77 30.36

A6 - 13th Floor Slab 13/3/2012 10/4/2012 28.88 30.03

D1 - 10th Floor Slab 13/3/2012 10/4/2012 28.88 29.44

A2 - 17th Floor Slab 14/3/2012 11/4/2012 28.73 29.07

33

34

35

11

12

30

31

13

14

15

16

24

17

7

8

9

10

4

5

6

Acceptance criteria of compressive Strength of Concrete As Per IS : 456, 2000 (Clause 16.1 & 16.3) - Standard Deviation

Sl. No.

1

2

3

SHAPOORJI PALLONJI & CO. LTD.

Grade of Concrete : M20 Month : March

Client

Project

DLF

DLF Westend Heights

18

19

20

eviation=4N

/mm

2

29

25

26

27

23

32

PMC Colliers International

Concrator SPCL

28

21

22

7/31/2019 Copy of Standard Deviation

3/3

Location

Part

of

Structure

Date of

Casting

Date of

Testing

28 Days

Comp.

Strength

in N /mm2

Av. Moving Four

Consc. Comp.

Strength in N / mm2

RemarksSl. No.

A2 - 17th Floor Slab 14/3/2012 11/4/2012 29.97 29.12

C4 - 6th Floor Slab 14/3/2012 11/4/2012 29.18 29.19

B6 - 11th Floor Slab 15/3/2012 12/4/2012 30.07 29.49

A3 - 17th Floor Slab 15/3/2012 12/4/2012 30.06 29.82

A3 - 17th Floor Slab 15/3/2012 12/4/2012 30.07 29.85

D1 - 10th Floor Slab 15/3/2012 12/4/2012 29.92 30.03

B4 - 13th Floor Slab 16/3/2012 13/4/2012 28.88 29.73

B4 - 13th Floor Slab 16/3/2012 13/4/2012 29.62 29.62

C2 - 10th Floor Slab 16/3/2012 13/4/2012 28.44 29.22

C2 - 10th Floor Slab 16/3/2012 13/4/2012 28.29 28.81

A4 - 16th Floor Slab 16/3/2012 13/4/2012 28.88 28.81

B2 - 18th Floor Slab 17/3/2012 14/4/2012 29.32 28.73

A7 - 13th Floor Slab 17/3/2012 14/4/2012 29.62 29.03

A7 - 13th Floor Slab 17/3/2012 14/4/2012 29.32 29.29

D1 - 10th Floor Slab 17/3/2012 14/4/2012 28.88 29.29

C4 - 7th Floor Slab 17/3/2012 14/4/2012 28.44 29.07

A2 - 17th Floor Slab 19/3/2012 16/4/2012 28.44 28.77

A2 - 17th Floor Slab 19/3/2012 16/4/2012 29.77 28.88

A5 - 8th Floor Slab 19/3/2012 16/4/2012 28.44 28.77

A4 - 16th Floor Slab 19/3/2012 16/4/2012 28.88 28.88

C3 - 10th Floor Slab 21/3/2012 18/4/2012 28.44 28.88

C3 - 10th Floor Slab 21/3/2012 18/4/2012 29.18 28.74

B3 - 13th Floor Slab 21/3/2012 18/4/2012 29.62 29.03

A7 - 13th Floor Slab 21/3/2012 18/4/2012 28.73 28.99

A3 - 17th Floor Slab 22/3/2012 19/4/2012 30.21 29.44

A3 - 17th Floor Slab 22/3/2012 19/4/2012 29.77 29.58

B5 - 12th Floor Slab 22/3/2012 19/4/2012 29.32 29.51

B5 - 12th Floor Slab 22/3/2012 19/4/2012 29.18 29.62

C1 - 10th Floor Slab 22/3/2012 19/4/2012 29.92 29.55

C1 - 10th Floor Slab 22/3/2012 19/4/2012 29.62 29.51

B6 - 12th Floor Slab 24/3/2012 21/4/2012 28.88 29.40

A6 - 14th Floor Slab 24/3/2012 21/4/2012 29.77 29.55

A6 - 14th Floor Slab 24/3/2012 21/4/2012 28.88 29.29

B2 - 18th Floor Slab 26/3/2012 23/4/2012 29.32 29.21

D1 - 11th Floor Slab 26/3/2012 23/4/2012 28.44 29.10

( X - X )2

69

70

64

65

66

67

61

62

63

68

57

58

59

60

53

54

55

56

49

50

51

52

46

47

48

41

42

43

44

40

36

45

AssumedStandard

STANDARD DEVIATION 0.82

37

38

39

N - 1