THE MINERAL INDUSTRY OF OHIO 
629 
 
Average value per barrel of portland cement dropped from $3.21 in 1966 to
$3.18; average value of masonry cement increased $0.04 to $2.89. Apparent
cement consumption in the State totaled 18.5 million barrels of portland
cement and 1.4 million barrels of masonry cement. Of this total, 50 percent
of the portland cement and 48 percent of the masonry cement were supplied
by Ohio cement producers and the remainder came from plants in other States,
notably Michigan and Pennsylvania. 
 Nine plants were active, two each in Greene and Lawrence Counties and one
each in Lucas, Muskingum, Paulding, Stark, and Summit Counties. Greene County
continued to be the principal Cement-producing area. In addition to supplying
consumers in Ohio, cement producers made shipments to other States. Of the
total cement shipments, 14 percent of the portland cement and 6 percent of
the masonry cement went to Michigan. Indiana received approximately 8 percent
of the portland cement and 9 percent of the masonry shipments, and West Virginia,
7 percent of the portland and 8 percent of the masonry cement. Shipments
of both types of cement also were made to Kentucky, Pennsylvania, and Virginia.
Masonry cement was produced at seven of the nine plants. The Diamond Portland
Cement Co., Division of The Flintkote Co. discontinued packaging masonry
cement at its Middle Branch, Stark County, plant and will phase out this
portion of its cement business. 
 Portland cement shipments by type of customer were as follows: Ready-mixed
concrete companies 9.~3 million barrels, concrete product manufacturers 2.4
million barrels, highway contractors 2 million bariels, arid building material
dealers 790,000 barrels. The rest went to other contractors and miscellaneous
customers. Nearly 13 
million barrels was shipped by truck and 1.8 million barrels by rail. Most
of the cement was delivered in bulk form, with only 7 percent of the portland
cement shipped in containers. 
 More than 3.6 million tons of limestone, cement rock, and marl were used
by producing companies as primary raw materials. Other materials used included
clay and shale 541,000 tons, sand 89,000 tons, gypsum 118,000 tons, and iron-bearing
materials 21,000 tons. Nearly 665,000 tons of bituminous coal was used for
clinker production or power generation. Other fuels used included natural
gas and fuel oil. Cement companies used 379.2' million kilowatt-hours of
electrical energy. Of the electricity, 72 percent was purchased from public
utilities and 28 percent was generated by the cement companies. A total of
28 kilns, ranging in size from 100 to 450 feet in length, and measuring from
5 to 14½ feet in diameter, was in operation during the year. The largest
kiln operation in the four plants using the dry process measured 13½
feet at the upper end and 12 feet at the lower end, and 425 feet in length.
Three ki'lns, 450 feet ' long, were in operation in plants using the wet
process, the largest of which measured 14½ feet in diameter. 
 In National Safety Competition, Universal Atlas Cement Division, United
States Steel Corp., The Diamond Portland Cement Company, Division of The
Flintkote Co., and Southwestern Portland Cement Co. were awarded Certificates
of Achievement in Safety for working in 1967 without any disabling injuries.

 
 Clays.—Production of clays (fire clay and miscellaneous clay and shale)
was below that of 1966 primarily because of lower demand in the major markets
for Ohio clay. Clay used in refractories totaled 832,000 tons compared with
980,000 tons 
 
Table 5.—Finished portland cement produced, shipped, and in stock 
(Thousand barrels and thousand dollars) 
Year 
Number of 
active plants 
Production 
Shipments 
from mills 
Stocks at 
mills 
Dec. 31 
 
 
 
Quantity 
Value 
 
1963                      
1964                      
1965                      
1966                      
1967                      
10 
10 
9 
9 
9 
16,300 
15,606 
14,599 
15,755 
14,773 
16,218 
15,553 
14,786 
15,181 
14,726 
$53,244 
50,647 
47,499 
48,740 
46,860 
2,064 
2,079 
1,600 
2,271 
2,224