:rl.J 
ALABAMA. 
85 
(4) In addition to the local market for cement furnished by such 
Icities as Atlanta, Birmingham, Mobile, and New Orleans, cement 
plants located upon the navigable rivers of Alabama will be enabled 
■to place their product at any point on the Gulf or southern Atlantic 
seaboard at very low prices, owing to the cheapness of transportation 
my water as compared with the railroad freight rates which most other 
plants will be compelled to pay. 
In view of these advantages it seems reasonable to expect that in the 
near future Alabama will take high rank among the States as a pro- 
ducer of Portland cement. At present, however, only one plant is in 
joperation. This is operated by the Alabama Portland Cement Com- 
pany, and is located about 1 mile east of Demopolis, Marengo County, 
pn the line of the Southern Railway Company. 
The raw materials used are the soft chalky limestone of the Cretaceous 
|and a residual clay, both occurring in the immediate vicinity of the 
plant. Analyses 1 and 2 of the following table show the composition 
iof the limestone actually used at the plant, while analyses 3 and 4 are 
prom near-by localities. It will be noted that the limestone actual^ 
quarried runs onty a little too high in lime carbonate to make a good 
(Portland cement by itself. A small amount of clay is added to reduce 
the lime to a proper percentage. No analyses of this clay are at present 
(available. 
Analyses of limestone from Demopolis, Ala. 
Silica (Si0 2 ) 
(Alumina ( A1 2 3 ) 
Iron oxide (Fe 2 3 ) 
Lime carbonate (CaC0 3 ) 
jMagnesium carbonate (MgC0 3 ) 
Sulphur trioxide (S0 3 ) 
Total sulphur (S) 
1 Water 
1 
2 
3 
12.50 
9.88 
12.13 
1 2.76 
6.20 
r 4.17 
I 3.28 
80.71 
77.12 
75. 07 
1.05 
1.08 
.92 
1.62 
n.d. 
n. (1. 
n. d. 
n. d. 
n.d. 
1.36 
5.72 
n.d. 
13.32 
8.74 
73.94 
1.40 
.27 
.64 
n. d. 
1. Quarry Alabama Portland Cement Company. R. S. Hodges, analyst. 
2. Quarry Alabama Portland Cement Company. Sen. Doc. No. 19, 58th Congress, 1st session, p. 2z. 
3. Demopolis. Proc. Alabama Industrial and Scientific Soc, vol. 5, p. 44-51. 
4. Demopolis. F. P. Dewey, analyst. 
I 
