Quantities Of Portland Cement, Sand And Pebbles Or Crushed Stone For 100 Square Feet Of Concrete 10 Inches Thick, Equal To 3.08 Cubic Yards

PROPORTIONS

Sacks of Cement

Cu. Ft.

of Sand

Cu. Ft. Pebbles or Stone

1

1

1

1 1/2

1

2

1

2 1/2

1

3

1

1

1

1

1 1/2

3

1

2

3

1

2

4

1

2 1/2

4

1

2 1/2

5

1

3

5

QUANTITIES

Sacks of Cement

Cu. Yd.

of

Sand

Cu. Yd.

Pebbles or Stone

60.2

2.23

47.7

2.65

39.4

2.92

33.8

3.13

29.5

3.29

41.7

1.54

1.54

23.4

1.30

2.60

21.5

1.59

2.38

18.5

1.37

2.74

17.2

1.59

2.54

15.4

1.43

2.86

14.2

1.58

2.64

NOTE: These quantities can be safely used for estimating, ordering materials and, after the work is done, as a check to prove that the required quantity of cement has been used. Actual quantity of materials used in the concrete should not vary more than ten per cent above or below the quantities given in the table.

This table can readily be used for any concrete structures which can be measured in area and which are of uniform thickness over any considerable area such as walls, floors, walks, etc.

The following examples illustrate the use of the table: