Noise hazards
Noise is a common phenomenon (at work, at the place of residence and rest), which causes many negative effects on human health. Health problems, … read on

Cellulose fibres (bulk material)

For the production of cellulose fibers, newspaper waste paper is used, from which cellulose fibers are recovered. The material is impregnated with boron compounds and compacted in packages up to approx.. 150 … read on

Impregnation consists in even and deep soaking of wood with the preparation to increase its durability. Preparations are available, that act prophylactically and protect wood and such, which have a healing effect – … read on

Plaster masses and mixtures:

Plaster (plastering expedition) is formed after applying a layer of mortar to the surface of walls and ceilings. Plaster gives the surface an aesthetic look, protects against weather conditions and moisture and … read on

Low-carbon steel used in construction is an iron alloy with a content of up to 2% carbon and other elements, obtained as a result of a two-stage production process. In the first stage of production from melted iron ores … read on

Ordinary concrete

Portland cement or metallurgical cement is used as binders for making ordinary concretes. Sand is used as aggregate, gravel, grits and mixtures of mineral aggregates. To modify the structure and … read on