2. Building and decoration. Limestone is the main raw material for manufacturing cement. In addition, limestone can be used to build the external walls and floors of houses.
3, do desiccant and disinfectant. In agriculture, quicklime is used to prepare pesticides, such as lime-sulfur mixture and Bordeaux mixture. The application of hydrated lime in soil can neutralize the acidity of soil, improve soil structure and provide calcium for plants.
4. Cement is made by mixing limestone and clay and calcining at high temperature.
5. Glass is a mixture of limestone, quartz sand and soda ash. And melted at high temperature.
Extended data:
Calcium carbonate is a valuable resource with a wide range of uses.
Limestone is the commercial name of limestone as a mineral raw material. Limestone is widely used in the history of human civilization because of its wide distribution and easy availability in nature.
As an important building material, it has a long mining history. In modern industry, limestone is the main raw material for manufacturing cement, lime and calcium carbide, and it is an indispensable flux limestone in metallurgical industry. After superfine grinding, high-quality limestone is widely used in making paper, rubber, paint, coating, medicine, cosmetics, feed, sealing, bonding and polishing products.
According to incomplete statistics, the ratio of limestone consumed in cement production to limestone consumed in building stone, lime production, metallurgical flux and superfine calcium carbonate is 1: 3.
Limestone is a non-renewable resource. With the continuous progress of science and technology and the development of nanotechnology, the application field of limestone will be further broadened.
Baidu encyclopedia-limestone