CHAPTERS ON THE CEMENT INDUSTRY 861 



ploratory work was carried on before the erection of the plant 

 was finally decided on. l^nmerous diamond drill borings, and 

 analyses of the resulting cores, satisfied the company as to the 

 thickness and purity of the limestone. 



AmericBJi cement co. The plant of this company, located 2 

 miles east of Jordan, Onondaga co., was erected in 1892. The 

 works were operated without any interruption till 1900, during 

 which year they were shut down, owing to new construction by 

 the company at Egypt (Pa.). 



The materials used were marl and clay, both obtained from a 

 marsh near the works, another bed of marl being owned by tHe 

 company nearer to Jordan station. The marl is white, atid the 

 bed varies in thickness from 8 to 15 feet. It is overlain by a 

 thin bed of muck, and underlain by a blue clay. The muck being 

 stripped, the marl and clay were dug, and transported to the 

 works by a wire rope way. The clay was dried and ground sepa- 

 rately, after which it was mixed with the marl in pug mills. 

 The resulting slurry was spread out on a drying floor, and cut 

 into bricks. These bricks were then loaded on platform cars, 

 dried in tunnels heated by coal fires, and fed to the kilns. 12 

 kilns, of the dome type, were in use, coke being used as fuel. 



The clinker was reduced, first in Gates and Mosser chushers, 

 and finally in Griffin mills. The cement was marketed as the 

 Giant (Jordan) brand. Analyses of the raw materials and fin- 

 ished product, furnished by the company, follow:^ 



Marl Clay Cement 



Per cent Per i ent Per cent 



SiOg : 14 65.68 21.86 



t'^""^ [ .36 24.08 j ''^' 



FogOg \ l 3.73 



CaO 53.16 2.01 61.14 



MgO v.. 1.5 1.75 2.34 



SO3 1.94 



1 Analysis by Booth, Garrett and Blair, 1898. 



