enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Portland cement - Wikipedia

    en.wikipedia.org/wiki/Portland_cement

    Portland cement had been imported into the United States from Germany and England, 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 ]

  3. Cement kiln - Wikipedia

    en.wikipedia.org/wiki/Cement_kiln

    Cement kilns are used for the pyroprocessing stage of manufacture of portland and other types of hydraulic cement, in which calcium carbonate reacts with silica-bearing minerals to form a mixture of calcium silicates. Over a billion tonnes of cement are made per year, and cement kilns are the heart of this production process: their capacity ...

  4. Concrete - Wikipedia

    en.wikipedia.org/wiki/Concrete

    Several tons of bagged cement, about two minutes of output from a 10,000 ton per day cement kiln. Portland cement is the most common type of cement in general usage. It is a basic ingredient of concrete, mortar, and many plasters. [43]

  5. Cement industry in the United States - Wikipedia

    en.wikipedia.org/wiki/Cement_industry_in_the...

    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 ...

  6. Cement - Wikipedia

    en.wikipedia.org/wiki/Cement

    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 ...

  7. CalPortland Company - Wikipedia

    en.wikipedia.org/wiki/CalPortland_Company

    The companies denied the claim, saying competition had actually brought prices down from $4 to $5 a barrel a few years earlier, when most cement was imported from elsewhere. [25] California Portland Cement was again accused of conspiring to fix cement prices in a 1980 lawsuit, along with about 50 other defendants.

  8. List of countries by cement production - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by...

    Table 5 - Hydraulic Cement – production – North America, South America, and Caribbean (thousand metric tons) [5] Country: 2012 2011 2010 2009 2008 2007 2006

  9. Libyan Cement Company - Wikipedia

    en.wikipedia.org/wiki/Libyan_Cement_Company

    The El-Fatayah factory was established in 1982 with two production lines having a 1,000,000 t/yr capacity of ordinary Portland cement. This factory is located 350 km east of Benghazi, near Derna. LCC also has a factory that produces the cement packaging, which was established in 1975; as it stands today, the factory produces 200,000 bags per day.