A cement is a binder, a substance used for construction that sets, hardens, and adheres to other materials to bind them together. Cement is seldom used on its own, but rather to bind sand and gravel (aggregate) together. Cement mixed with fine aggregate produces mortar for masonry, or with sand and gravel, produces concrete. Cement is the most widely used material in existence and is only behind water as the planet's most-consumed resource.
Portland cement is the most common type of cement in general use around the world as a basic ingredient of concrete, mortar, stucco, and non-specialty grout. It was developed from other types of hydraulic lime in England in the mid 19th century, and usually originates from limestone. It is a fine powder, produced by heating limestone and clay minerals in a kiln to form clinker, grinding the clinker, and adding 2 to 3 percent of gypsum. Several types of Portland cement are available. The most common, called ordinary Portland cement (OPC), is grey, but white Portland cement is also available. Its name is derived from its similarity to Portland stone which was quarried on the Isle of Portland in Dorset, England. It was named by Joseph Aspdin who obtained a patent for it in 1824. However, his son William Aspdin is regarded as the inventor of "modern" Portland cement due to his developments in the 1840s.
Zliten is a town in Murqub District of Libya. It is located 160 km to the east of Tripoli.
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 usually defines the capacity of the cement plant. As the main energy-consuming and greenhouse-gas–emitting stage of cement manufacture, improvement of kiln efficiency has been the central concern of cement manufacturing technology.
In the manufacture of Portland cement, clinker occurs as lumps or nodules, usually 3 millimetres (0.12 in) to 25 millimetres (0.98 in) in diameter, produced by sintering limestone and aluminosilicate materials such as clay during the cement kiln stage.
A cement mill is the equipment used to grind the hard, nodular clinker from the cement kiln into the fine grey powder that is cement. Most cement is currently ground in ball mills and also vertical roller mills which are more effective than ball mills.
Vicat SA is a French company manufacturing cement, aggregates and ready-mix concrete in four continents.
Railway stations in Togo include:
The Port of Alicante is a seaport in Alicante, Spain on the Mediterranean Sea used for commercial and passenger traffic. The port is administered by the Port Authority of Alicante.
Ahepe is a village in the southeast of Togo. Ahepe literally means "the house of Ahe". Founded around 1732, it is located approximately 63 km from Lomé, the political capital of Togo. Ahepe is a part of the district of Yoto, at 12 km from Tabligbo the capital of this district. It is3 km near Zafi in the west, 6 km from Kouve to the north, and 9 km from Tchekpo in the southern. Tabligbo lies in the east.
Hima Cement Limited (HCL) is a cement manufacturer in Uganda. It is a subsidiary of Bamburi Cement Limited, the construction materials manufacturer based in Kenya, which in turn is owned by Lafarge of France.
Zameer Mohammed Choudrey CBE, SI Pk is a British businessman, the chief executive of Bestway, the tenth largest privately owned business and according to the Institute of Family Business as of July 2017 Bestway was the country's third largest family owned business with an turnover in excess of £3.3 billion, and founded by his uncle, Sir Anwar Pervez.).
The environmental impact of concrete, its manufacture and applications, are complex. Some effects are harmful; others welcome. Many depend on circumstances. A major component of concrete is cement, which has its own environmental and social impacts and contributes largely to those of concrete.
Mysore Cements Limited is one of major producers of Cement in south India since its establishment in 1958 - 59 by Karnataka-based industrialist Sarangapani Mudaliar and by collaboration of Kaisers USA as a Public Limited Company The company produced its major output of 1 ton cement with the investment of about 20 million Rupees, in 1962. MCL was immediately taken over by Kaisers and G.D Birla and from then the following years company started producing more cement and it was 4 tpa by the end of year 1968. With an investment of 23 million, MCL produced 6 tpa of cement in Ammasandra unit Based in Tumkur District of Karnataka State. After the death of G.D Birla, in 1983 MCL was totally under control of Birlas and Shri. S.K Birla, grandson of GD Birla was declared the chairman of the organisation
Diamond Cement Ghana Limited 0362530533 is an Indian-owned Portland cement producing company located at Aflao in the Volta Region of Ghana near the border with Togo.
The mining industry of Togo is centred mainly around the extraction of phosphate, ranking it 19th in world production. Other minerals extracted are diamond, gold, and limestone. More minerals identified but yet to be brought into production mode are manganese, bauxite, gypsum, iron ore, marble, rutile, and zinc. The mineral sector contributes 2.8% to the country's gross domestic product (GDP).
Nyati Cement is one of the youngest cement manufactures in Tanzania and began operations in July 2014. The factory is located in Kimbiji Village, Temeke District, Dar-es-salaam. The brand Nyati cement operates under the banner of Lake Cement Tanzania ltd.
Malabar Cements Limited is one among the largest cement productive public sector undertaking, and fully owned company by the Government of Kerala and is the only major integrated cement-manufacturing unit in the State.
