Cementing minerals classification
We all know that there are lots of knittinging minerals. Sami substance are material, the main feature of which is to transform it in certain circumstances in a pretty solid in structure stone, which communicate grains of crushed stone, gravel and sand.
Cementing can be divided into Inorganictions, or Mineral , and organic.
Inorganic ( Mineral ) agent
Let us consider the inorganic binders ( minerflax ) agent , which have the form of powder and in contact with water in some conditions, or naturally converted to a solid surface.
Turn out astringent Mineral substancesand during firing limestone, gypsum, dolomite, anhydrite and magnesite, as well as other stone materials found in nature and their blends with clay. After passing the material through an oven, they are milled. The finer the grain yield of minerals, the more astringent properties.
These materialsdivided into two groups: slow and fast curing curing Mineral substance . For example, Portland cement hardens at a rate of from 1 day to 28 days, and plaster for a couple of tens of minutes (possibly longer).
For an organic binder materials include resins, tar, bitumen and asphalt. Bitumen in turn are divided into artificial and natural. Natural bitumens are direct derivatives of oil, which are produced in violation of conservation of oil deposits. Usuallynatural bitumens are presented in the form of clusters, resembling the shape of the lake, or impregnated rocks.
The products remaining after processing of coal, oil or shale, called artificial bitumen. The structure of the bitumen is a colloidal solution, dispersed among which are the asphaltenes - Agent of brown and black, causing hardness and high temperature s softening of bitumen. Secrete natural and artificially created asphalt. Natural asphalt is obtained with natural oil seeps to the surface of the earth, and man-made by mixing bitumen with limestone.
Many people are familiar construction useditumnye emulsions and varnishes, as well as gluing and sealing types of mastics, waterproofing materials for roofing rolls, asfaltopolimerbeton s and asphalt. Organic binder, known as tar, to the construction site comes in the form of mastics, varnishes, enamels and other refined products.
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