High-strength gypsum - will investigate new technologies

What is gypsum?

Building plaster is a very fine powder of white or light gray in color, obtained by grinding and roasting (or exactly the opposite - roasting and grinding) natural gypsum.The advantage of this material over others is a very fast setting and hardening of the same.

Start setting occurs within 5 minutes after application.In some cases, these advantages may be converted to disadvantages, so mortar is added, water-soluble animal glue to retard the setting and hardening reactions to it, etc.

Applications gypsum in building

In the process of hardening of the material is able to increase in volume, which is characteristic only Straining cement, but, unlike the latter, our object of discussion is relatively light material and can be used in interior decoratingworks.

Its undeniable advantages include environmental safety, fire protection, the ability to "breathe."The disadvantage of building material - its relatively low strength and water resistance, in addition, it quite easily scratched.

used this material for finishing plaster works, manufacturing of any products, gypsum board, molds, castings, as an additive to other binders, arbolita, for ventilation ducts, etc.

also chemically or by using the traditional technology, high-strength gypsum obtained .This material is of the highest quality, used where needed all of its unique characteristics, and normal strength, plaster is not enough.

Types of plaster - for what is diversity?

This material is characterized by a large number of species.And each has found its practical application in my life.The following types of gypsum :

• net material in combination with a mixture of lime and blast furnace slag called waterproof gypsum .In addition, to improve the water resistance of products, its composition can be admixed with surface active organic additives (sulphite alcohol Bard).A use of an aqueous solution of certain resins (carbamoyl), a hardening liquid is able to provide a sufficiently high mechanical strength and water resistance;
• lightweight gypsum obtained by applying to the processing of conventional raw materials, special technologies.Use this material in the manufacture of high-quality stucco ceiling and wall panels;
• During heating the raw material to about 140 ° C it is converted to a grayish white powder.This material is well soluble in water, it is used for producing high strength, and other building plaster formulations.We can say that the resulting gypsum hemihydrate - this semi-finished product for further revisions of the material;
• Syromolotov Gypsum is used as an additive in the production of aerated concrete, aerated concrete, for the treatment of soil.
• Gypsum fine needed in construction to fill the joints, connection plates, in finishing, etc.This material is called translucent gypsum views.He is a member of stucco;
• architectural plaster , another name - the mold is intended for the production of moldings, decorative stone, restoration of facades of buildings, production of souvenirs and a variety of forms.

The above examples - it is not all varieties of plaster, but, as can be seen from the written, he firmly and permanently entered in many areas of construction.This is due to its excellent performance and environmental friendliness.