Limestone is a natural sedimentary rock consisting mainly of calcium carbonate (CaCO₃) and is characterised by its exceptional purity and versatility. The limestone extracted by Calmit is a prime example of the highest quality and high carbonate content. Limestone is available in different grain sizes and crystal forms and, as a pure natural product, is indispensable in numerous industries.
Limestone from Calmit impresses with its purity, defined grain sizes and optimal physical properties. The colour varies depending on the origin and mineral composition of the calcite. The density is typically between 2.7 and 2.9 g/cm³, with a hardness of 3 on the Mohs scale. The low amount of foreign substances in the limestone ensures high product quality and versatile applications.
Areas of application:
Limestone is a basic raw material for the construction industry, where it is used as an aggregate for concrete, a filler for asphalt and a starting material for cement production. In the lime industry, limestone is used as a raw material to produce lime and other calcium compounds. The paper industry uses limestone as a filler and to improve whiteness and opacity. In agriculture, limestone is used to improve soil and neutralise acidic soils. Limestone also plays an important role in environmental protection, for example in flue gas cleaning and water treatment. Modern construction projects benefit from limestone as a sustainable building material. Limestone powder can significantly reduce the carbon footprint of concrete when used as a cement additive and improves durability and strength. Its high availability and regional extraction make limestone an ecologically sound raw material.
Process advantages:
Extraction and grinding are carried out under strict in-house monitoring in the factory laboratory, with tests in accordance with the relevant standards. Consistent quality and flexible delivery options ensure a reliable supply for all industrial and construction applications. Limestone from Calmit stands for the highest purity, versatile applications and sustainable production. As a raw material, it is an indispensable component of modern industrial and construction processes and actively contributes to improving the environment, quality of life and resource efficiency. Our experts will be happy to advise you on selecting the optimal specification for your application.
