Whether lime products in fired or unfired form or mixed products: for over a century, we at Bergmann Kalk have been working successfully with and around the natural raw material lime. Our products are not only used in the construction industry. Our products are also used in the animal feed industry or in agriculture and forestry.
Burnt lime products are used in the building materials industry, in earthworks, in the steel industry, and for environmental protection. Lime products are used to treat sewage sludge and in building renovation. Fertilizing lime is one of the many other fired lime products.
Burnt limestone is produced from limestone by way of a firing process. The deacidification of the limestone occurs at about 900° C in a lime kiln running on natural gas or coal dust. After firing, the burnt lime is classified, that is, divided into different grain bands. The advantage of granular products is their low-dust application and their high reactivity, with finer burnt limes having a different spectrum.
Fine white lime
Special limestones / mixed limescale
The extraction of the limestone is carried out by drilling and blasting. The result is a coarse aggregate that is processed differently depending on the application. They are mainly used for substructures, drainage, and slope stabilization, and in dry masonry or gabions (used as decorative elements for their light color).
Breaking down the aggregate results in stones of different sizes. Further processing produces antifreeze grits and customer-specific mineral mixtures. They are used as aggregate for asphalt base courses, in concrete production, and in road construction.
Limestone sands are prepared by drying a limestone grain and then fine grinding and sifting. Subsequently, the material is classified into different grain bands. They are used in road construction and civil engineering, in construction materials, and in the concrete and glass industry.
When classifying limestone sands, limestone powder is separated by sifting. Limestone flours have particle sizes & lt; 90 μm. Limestone flours are used in various fields, such as used in the dry mortar industry, in the production of asphalt and concrete, in flue gas cleaning, and as fertilizer or feed.
Our Bergmann soil binders can be used for the consolidation and general improvement of soils. Bergamix is mixed from lime, rock flour, and cement, and is available in different compositions.
Mixed lime products are used in road construction as base course binders. Most widely used is (highly) hydraulic lime. Silicates, calcium silicates, etc. are added to the lime. With the help of these binders, jointless and crack-free surface layers can be created.
The properties of the asphalt can be improved by adding hydrated lime: The adhesion properties between the bedrock and the bitumen increase, as does the resistance to abrasion and surface deformation. As a result, the service life is extended.
Our special lime mixtures are used to clean exhaust gases: They bind pollutants, reduce acid gases, and absorb mercury. They have a similar function in the decontamination of polluted soils. Lime products neutralize acids and fix heavy metals. In addition, contaminated soils are strengthened by soil binders, which make them easier to break down. Lime milk is also used in sewage treatment plants.
Feed limes consist of natural calcium carbonate and are made of unfired, ground limestone. This calcium carrier is a supplement to animal feed and is given to the animals as part of their complete or mixed feed. Since almost all livestock and pets are dependent on an additional calcium supply, commercial pet food usually contains feed lime. With separate feeding, the grain size is adapted to the needs of the animals.
Natural limes have been used for centuries as fertilizer lime because they improve the fertility of the soil. Carbonated lime, quicklime and slaked lime are used to raise the pH value of arable and forest soils.