112. Analysis of Natural Cements

The following table, giving the chemical constituents of the leading natural cements, will be found useful in comparing the products from different localities:

Table VII - Table Of Analysis - Natural Rock Cements

NUMBER.

SILICA.

ALUMINA.

IRON OXIDE.

LIME.

MAGNESIA.

POTASH

AND SODA.

CARBONIC ACID, WATER.

1.................

24.30

2.6l

6.20

39.45

6.16

5.30

15.23

2..................

34.66

5.IO

1.00

30.24

I8.00

6.16

4.84

3...........

23.16

6.33

1.71

36.08

20.38

5.27

7.07

4...........

26.40

6.28

1.00

45.22

9.00

4.24

7.86

5...........

25.28

7.85

1.43

44.65

9.50

4.25

7.04

6...........

30.84

7.75

2.11

34.49

17.77

4.00

3.04

7...........

27.30

7.14

1.80

35.98

18.00

6.80

2.98

8...........

28.38

11.71

2.29

43.97

2.21

9.00

2.44

9...........

2769

8.64

2.00

42.12

14.55

2.00

3.00

10...................

24.34

8.56

2.08

61.62

0.40

2.00

0.80

11.................

23.32

6.99

5.97

53.96

7.76

....

2.00

12...................

27.60

10.60

0.80

33.04

7.26

7.42

2.00

13...........

33.42

10.04

6.00

32.79

9.59

0.50

7.66

14...........

22.58

7.23

3.35

48.18

15.00

....

3.66

15...........

26.61

10.64

3.50

42.12

13.12

2.00

2.01

16...........

25.15

8.00

328

49.53

13.78

....

0.26

reference:

1. Buffalo Hydraulic Cement, Buffalo, N. Y.

2. Utica Hydraulic Cement, Utica, Ill.

3. Milwaukee Hydraulic Cement, Milwaukee, Wis.

4. Louisville Hydraulic Cement, "Fern Leaf," Louisville, Ky.

5. Louisville Hydraulic Cement, "Hulme," Louisville, Ky.

6. Rosendale Hydraulic Cement, "N. Y. & R.," Rosendale, N. Y.

7. Rosendale Hydraulic Cement, "Hoffman," Rosendale, N. Y.

8. Cumberland Hydraulic Cement, Cumberland, Md.

9. Akron Hydraulic Cement, "Cummings," Akron, N. Y.

10. California Hydraulic Cement, South Riverside, Cal.

11. Fort Scott Hydraulic Cement, " Brockett," Kansas City, Mo.

12. Utica Hydraulic Cement, La Salle, Ill.

13. Shepherdstown Hydraulic Cement, Shepherdstown, Va.

14. Howard Hydraulic Cement, Cement, Ga.

15. Mankato Hydraulic Cement, Mankato, Minn.

16. James River Hydraulic Cement, Balcony Falls, Va.