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The California Portland Cement Company was incorporated on September 18, 1891, in Los Angeles County, California, with a capital stock of $500,000 ($17.5 million in 2024). [3] Its first board of directors consisted of Los Angeles residents John P. Culver and Frank H. Jackson, and San Bernardino, California , residents Ernest Waycott, Harry R. O ...
Portland cement had been imported into the United States from England and Germany, and in the 1870s and 1880s, it was being produced by Eagle Portland cement near Kalamazoo, Michigan. In 1875, the first portland cement was produced in the Coplay Cement Company Kilns under the direction of David O. Saylor in Coplay, Pennsylvania . [ 11 ]
Cement was established as a company town at the turn of the 20th century and it quickly became a boomtown. It was founded and owned by the Pacific Portland Cement Company, who produced Portland cement that was bagged and labeled under the company's "Golden Gate" trademarked brand. It was shuttered in 1927, structures and equipment were ...
The resulting hard substance, called 'clinker', is then ground with a small amount of gypsum (CaSO 4 ·2H 2 O) into a powder to make ordinary Portland cement, the most commonly used type of cement (often referred to as OPC). Portland cement is a basic ingredient of concrete, mortar, and most non-specialty grout. The most common use for Portland ...
The types and amounts of cement produced in 2015 were: Portland cement 80.4 million tons; Masonry cement 2.4 million tons; Other hydraulic cement 0.6 million tons; Cement production is predominantly portland cement, which is mostly used in concrete. Cement for concrete is an essential material for construction, and demand is a function of ...
Two days before the cement supply bids for Shasta Dam were opened on April 31, 1939, the Santa Clara County Board of Supervisors voted to permit the construction of a $4,000,000 cement plant at Permanente. [17] Kaiser offered to deliver 5.58 million barrels of low-heat Portland cement at $1.90/barrel for a total cost of a little over $11 million.
Portland Cement Association is a non-profit organization that promotes the use of cement and concrete. The organization conducts and sponsors research, [ 2 ] participates in setting cement manufacturing standards, [ 3 ] [ 4 ] and disseminates free designs of concrete-based architectural structures, [ 5 ] among other functions.
Cement Plant and CEMEX Redwoods. The cement plant was built in 1906 and operated as the Santa Cruz Portland Cement Company. In subsequent years, it was operated by Pacific Cement and Aggregates (1956), Lone Star Cement Corporation (1965), and RMC Pacific Materials (1998). [7] In 2005, the plant was acquired by Mexico's CEMEX corporation.