M30 Mix design as per IS 10262

M30 Mix design as per IS 10262


Cement fine aggregate and coarse aggregate and admixture and water mix with maintain proposals by ratio and kilogram archive target strength in 28 days strength 34.125 N/mm2 that is called mix design of concrete M30

Details of sample : concrete mix design (with FOSROC, AURMAIX 200 admixture  )

Test Required :determination of mix proportion for M-30 grade concrete

  Report :

  1. Coarse aggregate was supplied in two size (i) 20 mm (ii) 10 mm. the properties of the coarse aggregate and fine aggregate (sand) are given in Appendix -A
  2. The cement Supplied was PPC, BIRLA GOLD cement Y 2021.The properties are given in Appendix-B
  3. Trial mix were cast and tested as per IS: 456-2000 and IS :10262-2009 & SP -23
  4. Saturated surface dry aggregates were used as per IS : 10262-2009
  5. Degree of control- Good 
  6. Exposure condition Moderate 
Recommended Mix proportion for M-30 grade concrete

Grade of concrete

Water

cement

Sand

CA-(10 mm)

CA-(20 mm)

Remarks

M-30

0.44

1

1.50

1.11

1.67

By Weight

 

 

    SL No                                                      Test                                                      M-30 Grade

1.        1. Compaction Factor Achieved in the laboratory                                                    0.90

2.        2. Target Strength                                                                       N/mm2                       38.25

3.        3.  (i)  7-days cube Compressive Strength achieved in the Laboratory N/mm2        27.1

      (ii)  28-days cube Compressive Strength achieved in the Laboratory N/mm2     39.1

4.      4.  Consumption of material per cubic material of concrete

            (i)                   Water                                                            (Liter)                         179

(ii)                Cement                                                          (Kg)                            409

(iii)               Sand                                                              (kg)                             642

(iv)               CA-10 mm                                                    (kg)                             469

(v)                CA-20 mm                                                    (kg)                              704

(vi)               Admixture (FOSROC, AURMAIX 200      (Liter)                          1.78

 Properties of Coarse Aggregate and Fine Aggregate for concrete Mix design M-30 Grade concrete

1.     Test for 20mm and 10mm Coarse aggregate

1.      1.  (i)Result of course aggregate supplied by client

     (ii)As per IS 383-1970 % aggregate passing of graded of nominal size 20 mm     

Analysis of CA

Friction

Percentage of different friction

 

 

 

CA-20

mm

CA-10

mm

CA-20

60%

CA-10

40%

Combined graded

Aggregate

 2.   Sieve analysis

Sieve size

% of passing

% of Passing

% of passing

% of passing

% of passing

As per is 383

40 mm

100

-

60

40

100

100

20 mm

92.2

-

55.2

40

95.2

95-100

16mm

-

100

-

-

-

-

   12.5 mm

-

 90.6

-

36.24

36.2

-

10 mm

18.2

44.8

10.92

17.92

28.8

25-55

    4.75 mm

3.6

4.1

2.16

1.64

3.8

0-10

 3.       Flakiness index                          18.5%                    18.8%                                     25% maximum

4.       Moisture content                         0.40%                    0.40%

5.       Deleterious material                    Nil                         Nil                                          5% maximum

6.       Specific gravity                           2.63                       2.63                                         2.5-3.0

7.       Aggregate crushing                     28.5%                   29.2%                                      30% maximum

8.       Aggregate impact value              28.3%                   28.9%                                       30% maximum

2.Tests for fine Aggregate (Sand)

(i)

IS Sieve size mm

Test result % of passing

As per 383 Grading zone –(iii)

4.75 mm

98.0

90-100

2.36 mm

94.3

85-100

1.18 mm

87.1

75-100

600 micron

70.2

60-79

300 micron

14.4

12-40

150 micron

4.4

0-10

Bulking of sand

24.6%

-

 (ii) Clay silt impurities                                                  1.8%                                          8% maximum

(iii) Present of deleterious material                                1.3%                                         5% maximum

(iv) Free moisture content                                              1.2%                                                     

(v) Specific gravity                                                         2.65

Concrete Mix Design Trial For M-30 Grade of concrete

Trial no

Free water cement Ratio

Cement content kg/m3

Water content (kg/m3

Workability of concrete in Term of C.F

7-Days compressive strength (N/mm2

28-Days compressive strength (N/mm2

Remarks of M-30 graded

1

0.44

400

176

0.92

26.7

38.7

 

2

0.43

409

176

0.90

27.1

39.1

 

3

0.42

419

176

0.85

28.4

40.4

 

Remarks trail no 2 is recommended for M-30 graded concrete mix design

Details of sample :Birla gold cement, PPC ,Y-2021

Test Required : Physical properties of cement

                                                                     REPORT

SL NO                                                   Test                                                      Result

1.    1.   Fineness by dry sieving (90 micron)                                                                                    1.1%

2.     2.  Consistency of standard Cement paste                                                                                 31.0%

3.    3.   Sound ness test                                                                                                                     1.10mm

4.     4. Specific gravity                                                                                                                      3.05

5.      5. Setting time                                                                                                       

(i)            Initial setting time                                                                                              140 mins

(ii)          Final setting time                                                                                               450 mins

6.      6. Compressive strength

               Cement standard sand ratio 1:3

(i)          3- Days strength                                                                                                 23.1 N/mm2

(ii)        7- Days strength                                                                                                33.1 N/mm2

(iii)       28- Days strength                                                                                              33.1 N/mm2

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