Lime powder is a white powdery substance, and its main component is calcium carbonate. It has a wide range of applications, and the most common one is calcium carbonate used in the construction industry, that is, industrial use. The other is food-grade calcium carbonate, which is widely used as a common calcium supplement.
Details are as follows:
(1) Lime-stabilized soil: The mixture made by mixing hydrated lime powder or quicklime powder into various broken or primary loose soil, and then mixing, compacting and curing is called lime-stabilized soil. Include lime soil, lime stabilized macadam soil, lime macadam soil, etc. Lime stabilized soil has certain strength and water resistance. It is widely used as the foundation of buildings, the cushion of the ground and the pavement base of roads.
(2) Silicate products: lime (hydrated lime powder or quicklime powder) and siliceous materials (sand, fly ash, volcanic ash, slag, etc. ) is the main raw material, which can be made into bricks, blocks and other products after batching, mixing, molding and curing. Because the internal cementing substance is mainly hydrated calcium silicate, it is called silicate products, and lime-sand bricks and fly ash bricks are commonly used.
(3) Lime milk and mortar: hydrated lime powder or lime paste mixed with a large amount of paint. Lime paste or hydrated lime powder can be used to prepare lime mortar or cement-lime mixed mortar for masonry or plastering engineering.
Extended data:
Lime powder is a white powdery substance, and its main component is calcium carbonate. It has a wide range of applications, and the most common one is calcium carbonate used in the construction industry, that is, industrial use. The other is food-grade calcium carbonate, which is widely used as a common calcium supplement.
There are two kinds of calcium carbonate, which are often used as calcium supplements: one is heavy calcium carbonate, which is limestone crushed to a certain fineness by lime mill and used as food additive; The other is light calcium carbonate, which is calcined from limestone. It is reported that the "deadly whitening agent" in Jiangsu actually uses calcium carbonate.
References:
Baidu encyclopedia-lime powder