What are the common uses of lime? What are the classifications of lime?

Lime has quicklime and hydrated lime.

i.e. slaked lime, according to its magnesium oxide.

The content (limited to 5) can be divided into calcareous lime and magnesia lime.

Due to its wide distribution of raw materials, the production process is simple and the cost is low in civil engineering.

It is widely used.

Applications in civil engineering.

Lime has a wide range of applications in civil engineering, and the main uses are as follows:

1) Lime milk and mortar: slaked lime powder or lime paste mixed with a large amount of stucco. Lime mortar or cement-lime mixed mortar can be prepared with lime paste or slaked lime powder for masonry or plastering projects.

2) Lime stabilized soil will be slaked lime powder or quicklime powder.

The mixture obtained after mixing, compaction and curing is called lime stabilized soil in various crushed or originally loose soils. It includes limestone soil, lime-stabilized gravel soil, lime gravel soil, etc. A small amount of activated silicon oxide and alumina with calcium hydroxide on the surface of the clay particles.

The reaction occurs to generate hydraulic-based calcium hydrated calcium silicate and calcium aluminate hydrate, which is the impermeability of clay, compressive strength, and water resistance are improved. It is widely used as the foundation of buildings, the cushion of the ground and the pavement base of roads.

3) Silicate products are made of lime (slaked lime powder or quicklime powder) and siliceous materials (sand, fly ash, volcanic ash, slag, etc.) as the main raw materials, and can be made of bricks, blocks and other products after batching, mixing, molding and curing. Because the cementitious substance inside is mainly hydrated calcium silicate, it is called silicate products, and commonly used are lime sand bricks, fly ash bricks, etc.

1. Lime and limestone are widely used as building materials and are also important raw materials for many industries. 2. Main uses: The main uses of lime in construction are:

1) Lime emulsion coating Lime plus a large amount of water to obtain a slurry, that is, lime emulsion. It is mainly used for interior painting that is not very demanding.

(1) According to the processing of quicklime, it can be divided into building lime and building quicklime powder

(2) According to the chemical composition of quicklime, it can be divided into two categories: calcareous lime and magnesia lime

Lime is a type of calcium oxide.

It is an air-hard inorganic cementitious material as the main component. Lime is made of calcium carbonate such as limestone, dolomite, chalk, shells, etc.

The product with high content is calcined by 900 1100. Lime is the earliest cementitious material used by human beings. Lime in civil engineering.

It has a wide range of applications and can also be used in medicine in China. For this reason, poems with lime as the theme have been handed down in ancient times, and they have been chanted through the ages.

The ancient Greeks used it for construction in the 8th century BC, and China also began to use lime in the 7th century BC. To this day, lime is still a versatile building material. Lime has quicklime and hydrated lime.

i.e. slaked lime, according to its magnesium oxide.

The content (limited to 5) can be divided into calcareous lime and magnesia lime. Due to its wide distribution of raw materials, the production process is simple and the cost is low.

Lime has strong alkalinity, and at room temperature, it can react with glassy activated silicon oxide or activated alumina to form a water-hardened product and produce cementation. Therefore, lime is also an important raw material in the building materials industry.

Classification of lime: (1) according to the processing of quicklime, it can be divided into building lime and building quicklime powder; (2) according to the chemical composition of quicklime, it can be divided into two categories: calcareous lime and magnesia lime; according to the content of chemical composition, each class is divided into various grades.

Lime can be used for skin ulcers, and is often used for insecticide and detoxification, wound bleeding, and construction sites.

The main component of lime is calcium carbonate, and the inclusions in it are silicic acid, aluminum, etc. Lime can be divided into different types according to different treatments. For the kind of high heat, only calcium oxide is often left, which is called quicklime, which is often called lime.

When quicklime meets water, it turns into slaked lime.

The lime temperature can be dispersed, and the dryness is used to dehumidify, and it is also easy to enter the spleen meridian. The spleen is in charge of the muscles of the limbs, so it can be used to treat skin ulcers, dead muscle leprosy, etc. It can not only dry and damp sores, but also disperse wind and toxin, and it also has the effect of growing muscle and flesh and eroding sores and decaying.

Lime is also able to kill insects and detoxify. Lime itself is poisonous, and it is often used for local external use to fight poison with poison, and is used to treat mosquito bites, detoxification, etc. Because it is pungent and warm, it can disperse and other characteristics, so it has the effect of fixing pain, dispersing blood and stopping bleeding, and is often used for symptoms such as trauma bleeding and soup burns.

Now lime is usually used as a gypsum to apply, combined with internal anti-clump drugs, to ** abdominal lumps, which is conducive to dispersion and accumulation in the body.

Quicklime has strong alkalinity, and at room temperature, it can react with glassy activated silicon oxide or activated alumina to form a hydralic-hard product and produce cementation. Therefore, lime is also an important raw material in the building materials industry. Lime is divided into quicklime and hydrated lime.

The main component of quicklime is calcium oxide, and the white solid is refractory and insoluble. The high content of limestone is calcined in a ventilated lime kiln to more than 900 degrees. It is absorbent and can be used as a desiccant, which is commonly used by our people to prevent the resurgence of debris.

Reacting with water (while emitting a large amount of heat), or absorbing moisture from moist air, i.e. mature lime [calcium hydroxide Ca(OH)2, also known as "slaked lime"). Hydrated lime dissolves grams (20) in liters of water, and its saturated solution is called "lime water", which is alkaline and absorbs carbon dioxide in the air to form calcium carbonate precipitates. Quicklime will absorb carbon dioxide and turn into powdered calcium carbonate when exposed to the air for a long time, which cannot play the role of clearing pond disinfection.

The uses of lime include pond disinfection, disinfection and sterilization, killing wild trash fish, bottom modification and deodorization, treatment of black odor, killing harmful algae, etc. 1. Qingtang disinfection: 100-1000 kg of quicklime per mu, dry sprinkled (splashing reaction after dry sprinkling).

Its fever process can have a strong killing effect on pathogenic microorganisms and even predatory organisms; It has a significant effect on improving soil pH, total alkalinity and total hardness; It has oxidation, saponification and mineralization effects on soil organic matter. <

The uses of lime include pond disinfection, disinfection and sterilization, killing wild trash fish, bottom modification and deodorization, treatment of black odor, killing harmful algae, etc.

1. Qingtang disinfection: 100-1000 kg of quicklime per mu, dry sprinkled (splashing reaction after dry sprinkling). Its fever process can have a strong killing effect on pathogenic microorganisms and even predatory organisms; It has a significant effect on improving soil pH, total alkalinity and total hardness; It has oxidation, saponification and mineralization effects on soil organic matter.

2. Disinfection and sterilization: 5-10 catties of chemical water per mu of quicklime is sprinkled, which has a certain killing effect on bacteria, fungi, ciliates and some parasites. Its suspension is more effective when used with Sanhuangsan, alum, tea bran and organic acids.

3. Killing wild trash fish: 50-100 kg of quicklime per mu + 20-100 kg of tea bran per acre, which can enhance the fish-killing effect of tea bran (especially dry tea bran). At the same time, there is also an obvious subsequent fertilizer and water effect.

4. Change the bottom and deodorize: quicklime is crushed to the size of a finger, one pound per acre, once every 3-5 days, and dry sprinkled in the evening. It has a significantly improved substrate and detoxification and deodorization effect.

5. Deal with black odor: large pieces of quicklime can be sprinkled dry in the evening or morning with the bottom of the turbine oxygen machine. It can assist in alleviating the deterioration of substrate caused by black and odorous substrates, such as stealing death, jumping death, sulfide poisoning, and nitrite poisoning.

6. Kill harmful algae: 5 catties per mu, splash it on cyanobacteria, euglena, dinoflagellates, and water spiders while hot after turning water into water (bloom or limelight). It can directly kill harmful algae and water spiders and ciliates.

Lime can be used as a raw material, a protective agent, a bottom deodorant, and a black odor.

1. Paint the wall

One of the most common uses of lime is probably to paint walls. Use the cooked and aged lime paste, add water to dilute it into lime milk, so that it can be used as indoor or outdoor paint, and the ceiling can also be used.

2. Used as raw materials

There are many uses for lime. It can also be used as a raw material. For example, it comes in handy in the manufacture of calcium carbide, soda ash, or bleaching powder.

3. Protective agent

Lime can be used as a boiler deactivation protectant, which is mainly to use the water absorption and moisture-proof effect of lime, so as to keep the surface of the metal material of the boiler water vapor system dry.

4. Change the bottom and deodorize

First, knock the quicklime to the size of your finger to significantly improve the substrate, and then dry sprinkle it in the evening to achieve the effect of deodorization.

5. Deal with black odor

Large pieces of quicklime are dry sprinkled in the evening or morning and on the bottom of a turbine oxygen planter. It can play a good role in helping to alleviate the problem of black and odorous substrate.

1. It can be used as a desiccant, 2. It can be used as a building material, 3. It can improve the soil.

Quicklime can be used as a desiccant and has a good dehumidification effect. Because it reacts with moisture in the air, it reduces the humidity in the room and keeps the room dry. Especially when the air is humid, sprinkle quicklime on the corners of the wall, which can play a good moisture-proof effect.

Quicklime can also be used in construction projects, for example when plastering walls, where it is mixed with cement mortar and then used to coat walls. Quicklime can also be used to improve the soil, and for acidified soil, you can bury some quicklime in it appropriately, so that you can change its pH value. At the same time, quicklime will also produce a certain amount of heat after being in the soil, which can effectively eliminate pests in the soil.