Lime is a common material in our daily life. Including the ancients, it is also "a thousand hammers to dig deep mountains, and the fire is like a fool." Not afraid of broken bones, only leave innocence in the world. "Praise the will not afraid of sacrifice and the determination to stick to noble sentiments. Lime looks ordinary, but it is very special. So what is the purpose of lime? Let's have a look!

Lime and limestone are widely used as building materials and important raw materials for many industries. Limestone can be directly processed into stone and burned into quicklime. Lime includes quicklime and hydrated lime. The main component of quicklime is CaO, which is generally massive, pure white, and light gray or light yellow when containing impurities. After absorbing water or adding water, quicklime becomes hydrated lime, also called hydrated lime, and its main component is Ca(OH)2. Slaked lime is mixed into lime slurry, lime paste, lime mortar, etc. , used as coating and tile adhesive. Cement is made by mixing limestone and clay and calcining at high temperature. Glass is a mixture of limestone, quartz sand and soda ash. And melted at high temperature. Limestone is used as a flux to remove gangue in ironmaking. Quicklime is used as slagging material in steelmaking to remove harmful impurities such as sulfur and phosphorus.

Portland concrete and its products are artificial stone materials made of lime and siliceous materials (such as quartz sand, fly ash and slag). ) by grinding, batching, mixing, forming and curing (steam curing or high pressure steam curing). Commonly used silicate concrete products include all kinds of fly ash bricks, sand bricks, blocks and aerated concrete cured by steam and autoclaving.

Carbonized lime board is a kind of light board which is made of fine quicklime, fibrous filler (such as glass fiber) or lightweight aggregate by grinding and stirring with water to form a blank, and then introducing carbon dioxide for artificial carbonization (about 12 ~ 24 hours). Suitable for non-load-bearing internal partition boards, ceilings, etc.

Lime soil and triple soil are called lime soil after mixing hydrated lime powder with clay and adding sand or stone chips and slag to form triple soil. Lime soil and concrete are widely used in the foundation of buildings and the cushion of roads.

Mortar can be made of lime plaster or hydrated lime powder or cement-lime mixed mortar for plastering and masonry.

Lime milk paint is a slurry obtained by adding a lot of water to lime, that is, lime milk. Mainly used for indoor painting with low requirements.