The story of Pittsburgh: Cement and concrete

Cement and concrete (Vol. 1, nr. 8)

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Multivolume work

Identifikator:: 1831622599

Document type:: Multivolume work

Title:: The story of Pittsburgh

Place of publication:: Pittsburgh

Publisher:: First National Bank

Year of publication:: 1919-1930

Collection:: Economics Books

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Volume

Identifikator:: 1831623277

URN:: urn:nbn:de:zbw-retromon-239793

Document type:: Volume

Title:: Cement and concrete

Volume count:: Vol. 1, nr. 8

Place of publication:: Pittsburgh

Publisher:: First National Bank

Year of publication:: 1921

Scope:: [ca. 18] Seiten

Digitisation:: 2022

Collection:: Economics Books

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Document type:: Multivolume work

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Title:: Castalia Portland Cement Company

Collection:: Economics Books

CASTALIA PORTLAND CEMENT COMPANY The Castalia Portland Cement Company was organized in 1897, with a capital of $150,000 which has been increased to $750,000. Its plant is located at Castalia, Ohio, with its general offices in Pittsburgh. Cement was first shipped from this plant twenty-three years ago. Many of the leading dealers in builders’ supplies in the United States who placed their orders with this company at that time have been ordering regularly aver since. They are today great boosters of the famous “Tiger” brand cement. This is certainly the highest testimonial the company could ask for regarding the quality of its product. Cement manufactured by this company has been used in the construction of some of the most important work throughout the country. Marl and clay are used in the manufacture of this cement which has always stood second to none in quality. It is made by what is known as the Wet Process. After the marl and clay pass through the grinding mills, the mixture goes to a system of correction tanks. The mix contained in these tanks is then accurately analyzed so as to assure the correct proportion of lime, alumina and silica required for the proper burning in the kilns. Owing to this method of controlling the raw mix, no other cement company turns out a more uniform cement as to fineness, color, crushing and tensile strength than the Castalia Portland Cement Company. In the present manufacture of cement, the Castalia Company uses special machinery for grinding the raw materials which has been constructed especially for its own particular need. Pulverized coal is burned in the kilus finely ground by mills built especially for this purpose. During the last three years this plant has been prac- tically rebuilt and is now equipped throughout with the most modern up-to-date machinery. Every department is operated by electric power. This improvement has greatly increased its output. helping the company to

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