ESTIMATED QUANTITIES OF MATERIALS REQUIRED PER CUBIC METRE OF COMPACTED MORTAR OR CONCRETE

NOMINAL MIX

 

WATER CEMENT RATIO

 

WATER PER 50KG BAG OF CEMENT

 

CEMENT

 

SAND (CUM)

 

CRUSHED STONES (CUM)

 

CEMENT

 

F.A.

 

C.A.

 

BY WEIGHT (KG)

 

BY NUMBER OF BAGS

 

1

 

1

 

-

 

0.25

 

12.5

 

1015

 

20.3

 

0.710

 

-

 

1

 

1.5

 

0.28

 

14

 

815

 

16.3

 

0.855

 

-

 

1

 

2

 

-

 

0.3

 

15

 

687

 

13.74

 

0.963

 

-

 

1

 

2.5

 

-

 

0.35

 

17.5

 

585

 

11.7

 

1.023

 

1

 

3

 

-

 

0.4

 

20

 

505

 

10.1

 

1.06

 

-

 

1

 

4

 

-

 

0.53

 

26.5

 

395

 

7.9

 

1.106

 

-

 

1

 

6

 

-

 

0.7

 

35

 

285

 

5.7

 

1.197

 

-

 

1

 

8

 

-

 

0.9

 

45

 

220

 

4.4

 

1.232

 

-

 

1

 

1

 

2

 

0.3

 

15

 

560

 

11.2

 

0.392

 

0.784

 

1

 

2

 

2

 

0.42

 

21

 

430

 

8.6

 

0.602

 

0.602

 

1

 

1.5

 

3

 

0.42

 

21

 

395

 

7.9

 

0.414

 

0.828

 

1

 

1.66

 

3.33

 

0.48

 

24

 

363

 

7.26

 

0.419

 

0.838

 

1

 

2

 

3

 

0.5

 

25

 

385

 

7.7

 

0.539

 

0.808

 

1

 

2

 

3.5

 

0.53

 

26.5

 

330

 

6.6

 

0.462

 

0.808

 

1

 

2

 

4

 

0.55

 

27.5

 

310

 

6.2

 

0.434

 

0.868

 

1

 

2.5

 

3.5

 

0.57

 

28.5

 

305

 

6.1

 

0.534

 

0.748

 

1

 

2.5

 

4

 

0.6

 

30

 

285

 

5.7

 

0.499

 

0.798

 

1

 

3

 

4

 

0.65

 

32.5

 

265

 

5.3

 

0.556

 

0.742

 

1

 

2.5

 

5

 

0.65

 

32.5

 

255

 

5.1

 

0.446

 

0.892

 

1

 

3

 

5

 

0.69

 

34.5

 

240

 

4.8

 

0.504

 

0.84

 

1

 

3

 

6

 

0.75

 

37.5

 

215

 

4.3

 

0.452

 

0.904

 

1

 

4

 

8

 

0.95

 

47.5

 

165

 

3.3

 

0.462

 

0.924

 

Notes:

1. F.A.= Fine Aggregates, C.A.= Coarse Aggregates

2. The table is based on assumption that the voids in sand and crushed stone are 40 and 45 percent respectively.

3. Air content of 1 percent has been assumed.

4. For gravel aggregates decrease cement by 5 percent, increase sand by 2 percent and coarse aggregate in proportion to fine aggregate in mix.

4. No allowance has been made in the table for bulking of sand and wastage./>