Chrysotile asbestos: features, characteristics, scope

Asbestos is a white natural mineral,rather, a group of fine-grained minerals. Use this stone in many industries. There are two types of asbestos: amphibole and chrysotile. More popular is chrysotile asbestos. How it differs from the amphibole analogue, we will tell further.

Material Features

Main characteristics of the material - durabilityand alkali resistance. And asbestos does not burn at all. This property was known in ancient Egypt. They also knew about this in Europe: Charles V ordered to weave a tablecloth from asbestos fibers and entertained, surprising guests by throwing the product along with the remains of food in the fire. The food burned, and the tablecloth remained whole.

In addition, chrysotile asbestos has the following properties:

1. Elasticity.
2. High strength.
3. Heat resistance. At temperatures above +700, the fibers of the stone become brittle, and at + 1500 degrees they begin to melt.
4. Low electrical and thermal conductivity.
5. Explosion proof.
6. Fire resistance.
7. Safety: when heated, the material does not emit substances harmful to living organisms.

Asbestos also has adsorption reinforcing and spinning properties.

Types of material

Chrysotile asbestos is divided into several groups, independing on the fact that the fractional composition has a substance. Separation takes place on the control apparatus, on special sieves. Each screen has cells of different sizes:

• 12.7 mm;
• 4.8 mm;
• 1.35 mm;
• 0.4 mm.

Further, the material by size of the obtained fractionis divided into 7 groups. The most popular group is considered to be 6. This is chrysotile asbestos of K-6-30, K-45, K-20, K-5. It is used in production, where asbestos-cement building materials are manufactured:

1. Wavy sheets. Wavy and flat sheets are produced.
2. Extrusion panels for walls and roofs.
3. Partition walls for external and internal walls in buildings and structures.

Scope of application

Asbestos chrysotile is used because of its almost unique properties. With his help:

1. Perform heat insulation of heating appliances, ovens.
2. The steam boilers are decontaminated.
3. Asbestos and asbestos products are produced.
4. Provide thermal insulation of curved products.
5. Protect metal structures from high temperatures, etc.

Chrysotile is also used in the paper, automotive, medical and glass industries.

Asbestos chrysotile grade K-6-30: technical characteristics

The material has the following properties:

1. The limit of heat resistance is 500 ° C.
2. It begins to melt at 1500 ° C.
3. The density index is 2.6 g / cm3.
4. The alkalinity is about 10.2 pH.
5. 0,8 - coefficient of friction.
6. The tensile strength is more than 3000 MPa.

Packing, transportation, storage

Pack chrysotile asbestos in bags ofsynthetics or paper. The weight of the bags is 50, 45 or 40 kg. Transportation is possible with all modes of transport. The only condition for this is the ability to comply with the technical conditions of loading / unloading. In addition, the cargo must be firmly fixed. As for railway transport, it is recommended to move the material with wagon shipment to maximize the capacity of wagons.

In order for the substance to retain all its substances, itsmust be stored in a packaged form. It is desirable that the premises used for this are closed. If the storage areas are open areas or hinged structures, chrysotile must be packed in synthetics bags, and a waterproof material is placed on top to protect it from moisture. So the material can be stored for a long time, but not more than one year from the time of its manufacture.

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