Cement: cement production and special cement

Cement: cement production and special cement

Cement: cement production and special cement: screed

Source: Wikipedia; Author: Stanislav Skovron

Cement comes from the Latin word "caementum" so "quarry stone", because even the ancient Romans built buildings made of cement-like material. Cement is the world's most important hydraulic binder for concrete and mortar. In Germany, about 350 kg of cement are processed per inhabitant - every year.

Cement is mixed with water and solidified by certain chemical reactions when drying. It then remains solid and permanent, even on renewed contact with water.

cement production

Cement: cement production and special cement: cement

Clinker (Source: Wikipedia; Author: Macau500)

Cement consists of limestone, clay, iron ore and blastfurnace slag. In addition, there are aluminum, iron and calcium oxide and various sulfates. All these raw materials must first be mined in quarries and pre-shredded in crushers. This material is then transported to the cement works where it is further processed. In raw mills, everything is ground and dried. The resulting raw meal is then fired in a rotary kiln to clinker. With the help of calcium sulfates is
Controlled the solidification time. Thus, the cement can be optimally processed in concrete production and leads to a high performance when hardened. Then the clinker must cool down and ground together with gypsum to cement.

Incidentally, the largest cement producer is the People's Republic of China.

Laying cement screed and cement screed prices

"Cement paving is the most popular screed in Germany and is characterized by its high load-bearing capacity, its resistance to moisture and high resistance to wear, and consists of cement, sand or gravel and water plus additives.

Find out everything here about laying cement screed and cement screed - prices

Dry screed and liquid screed

Cement: cement production and special cement: special

Source: YouTube

You are faced with the decision "dry screed or liquid screed" and do not know next? We will show you where the advantages and disadvantages of each variant lie. We also show you how to lay dry screed and what to look for in terms of underfloor heating.

Get here on the subject: floating screed and dry screed

Cement: cement production and special cement: Portland

Source: Wikipedia; Author: pt: Usuário: Manuel Anastácio

Cement: cement production and special cement: special

Source: pixelio.de, author: sublevel

Tiles can become worn and unattractive as a result of cement veils. If your stonemason or your tiler has also fumbled and after grouting the joint compound has not properly removed, then you must now see for yourself how you can remove the cement curtain. We'll help you and clarify about Cement Veil Cleaner and other home remedies.

Continue reading at: Removing Cement VeilCement mortar is suitable for repair, masonry and plaster work both indoors and outdoors. In combination with hydrated lime or hydraulic lime, it is also extremely easy to use. Read here what cement mortar is needed for, what properties it has and how you can process and color it.

Get to: Process Cement Mortar

special cement

Cement: cement production and special cement: Portland

Source: Wikipedia; Author: Georg Burmester

Cement is extremely diverse. It can have normal or individually tailored to the user properties. The following types of cement were able to establish themselves:

  • Portland cement: The term "Portland cement" comes from the so-called Portland stone. This limestone was mined as a stone on the Portland peninsula on the English Channel coast.
  • Trass-cement
  • White cement: White cements are made from raw materials that contain little iron oxide. Its bright color makes it ideal for coloring.
  • Alumina cement: This type of cement is very similar to Portland cement, but contains a larger proportion of aluminum, but is not permitted in Germany for load-bearing structures.
  • Quick cement: Quick Cement is a mixture of Portland and alumina cement and is suitable for all assembly and installation work, where it depends on particularly fast setting and fast loading. Processing takes only 3-4 minutes; after only 5 minutes, the mortar is completely solidified.
  • Fiber cement: Fiber cement is mostly used for construction and construction products.
  • Hochofenzement: A kind of Portland cement, but containing a much higher proportion of sand. In production, less energy is needed and lower CO2 emissions are caused.

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Video Board: Cement Manufacturing