bitumen and other indicators of density - what you did not know

little encyclopedic knowledge

Bitumen - a product of processing of the oil industry, it is a solid or a resinous mixture of hydrocarbons with a variety of derivatives.Bitumen composition comprises 70-87% carbon, about 15% hydrogen, about 10% oxygen, and about 1.5% sulfur.

This material was not completely soluble in water, but partially or completely soluble in chloroform, benzene, carbon disulfide and other organic solvents.bitumen density ranges from 0.9 to 1.5 g / cm³.The color of the substance is a black or dark brown.

bitumens have a fairly characteristic physical properties.These include weather resistance, hydrophobicity, solubility in most organic solvents, softening during gradual heating, adhesion, ductility, toughness, etc.

viscosity of bitumen one of its most important characteristics.It depends on the temperature oscillations at higher temperatures this parameter decreases with a decrease - increase, and at temperature below zero material becomes quite brittle.

Among other things, a further indication of the qualitative composition of bitumen is its specific gravity.The proportion of bitumen by all standards should be not less than 1 g / cm3 at t 25? C.

Application Oil building material

addition to the physical representatives of this class of materials have a number of chemical properties, which are expressed in their resistance to corrosion, as well as to the effects of alkalis, etc.All of these properties, and resulted in the use of bitumens in the manufacture of waterproofing, roofing materials and corrosion, lubricating and fuel oils.

addition, the substance is widely used in road and hydraulic engineering.Good combination of substances with different polymers and rubber qualitatively expanded the scope of its application has led to its use in practically all areas of construction.

bitumen due to its physico-chemical and other properties, as well as an excellent performance remains one of the most popular materials in the building materials market.It is therefore not surprising that its production is increasing every year.And adding to its composition of different polymers to stabilize the its shortcomings and emphasize the dignity.

Variety bitumen

Classification of bitumen runs on several criteria:

• origin :

1. synthetic bitumen (oil) are obtained in the process of refining;
2. natural as are formed by natural oil polymerization, in pure form are rare, more often present in sedimentary rocks;

• the type of extracted raw materials :

1. bitumen coal produced by dissolution of some types of coal products with organic solvents, and in the further processing of such species secrete resin and wax used in the production of adhesive mixtures, paints and varnishes;
2. peat - stand out from the peat by using various organic solvents;
3. oil, in turn, are divided into the residual oxidized and compounded;

• in purpose and scope :

1. road bitumen used in the production of road mastics, all kinds of bitumen emulsions and asphalt mixtures, volumetric weight of the bitumen road is approximately 1100 kg / m³;
2. roofing asphalts are impregnating and coating;first used for waterproofing coatings and other structures, as used in the second manufacturing roofing materials (roofing, tile, etc.);
3. bitumen insulation have been applied in the waterproofing materials (stekloizol, waterproofing, sealant, etc.).