Cement is also divided into many types, special cement is a relatively common type of cement, and special cement can be divided into different varieties. So what are the varieties of special cement? Special cement has special properties and special purpose cement. Commonly used special cement varieties are white portland cement, colored cement, fast-hardening Portland cement, fast-setting fast-hardening Portland cement, low-heat cement, medium-heat cement, oil well cement, sulfate-resistant Portland cement, masonry Cement, refractory cement, expansive cement and anti-radiation cement, etc. The following is an introduction to some special cements. What is special cement In order to better understand the situation of the types of special cement, first of all, let's take a look at what is special cement and understand its basic concepts. In fact, the concept of special cement is relatively simple, it is a kind of special cement, and it can also be said to be a cement with special characteristics. The feature mentioned here is because it has some special uses or is used in some special projects. Special cement is very popular because it has many characteristics and is more convenient to use. Special cement varieties 1. Fast-hardening cement: When it comes to special cement, the first thing we think of is fast-hardening cement, because fast-hardening cement is the first special cement that appears on the market. Fast hardening cement, as the name suggests, is hardening very fast. In general, fast setting cement can harden within a few hours. Fast-hardening cement is generally used in some emergency rescue operations. 2. Mid-heat cement: The so-called mid-heat cement is the general term for cement with low hydration heat. Generally speaking, the main purpose of medium heat cement is to build some dams and other large-scale buildings. The use of medium-heat cement in China is very large, because China is building a series of large-scale projects. 3. Expansive cement: Expansive cement is also a special cement that we use more often. The reason why it is called expansive cement is because this cement will expand and become larger during the hardening process. The main purpose of expansive cement is to fill or block some vacancies. Recommended by special cement manufacturers 1. Nanyang Sanrui Special Cement Sales Co., Ltd .: This company has been mainly producing and selling special cement. This company is located in Nanyang City, Henan Province, China. The transportation is very convenient, and it is close to Nanyang City. It has rich high-quality limestone resources. Has built a good foundation, and this company has also introduced new technologies, new materials development, manufacturing and research and development of a variety of special cement products, and product sales are very large, has sold most of China ’s provinces and cities , And has been well received by many users. 2. Guangxi Yunyan Special Cement Building Material Co., Ltd .: This company was established in the 1990s and is located in the relatively developed southeast of Guangxi. Thank you very much. Many national highways and railways cross each other here, so it can be said that the land and water transportation is extremely convenient. This company's product varieties are There are many, and the technology is relatively concentrated, and the service quality is very good. It is a relatively famous special cement enterprise in the country. I own three cement production lines and special engineering material production lines. The special cement products produced are certain. The degree of specialization, so the product is very trustworthy. 3. Shenzhen Huataihui Special Cement Products Co., Ltd .: Special Cement Products Co., Ltd. was established relatively late. It was established in 2013. It is a company that specializes in providing special cement for high-end venues such as hotel offices and villas. It also has partnerships with many professional companies, so its production line is very strong. The technical force of the company is supporting. The company has always been paying attention to integrity and insisting on quality first. Therefore, every project and every link has been perfectly checked, so the company's products are very good. Special cement production process The production process of silicate cement is representative in cement production. Limestone and clay are the main raw materials, which are crushed, batched, and ground into raw materials, which are then fed into a cement kiln to calcine the mature materials, and then cooked It is grinded by adding appropriate amount of gypsum (sometimes mixed with mixed materials or additives). Cement production differs with the preparation method of raw materials, and can be divided into dry method (including semi-dry method) and wet method (including semi-wet method). ①Dry production. The method of drying and grinding the raw materials at the same time, or firstly drying and grinding into raw meal powder and then feeding it into the dry kiln to calcine the mature material. However, there is also a method of adding raw meal powder to an appropriate amount of water to make a raw meal ball, and sending it into the Li Boer kiln to calcine the mature raw material. This method is called semi-dry method, which is still a kind of dry method production. ②Wet production. After the raw material is added with water powder to grind into raw material slurry, it is fed into a wet kiln to calcine the mature material. There is also a method of dehydrating the raw material slurry prepared by the wet method and making raw material blocks into a kiln to calcine the mature material, called semi-wet method, which is still one of the wet production methods. The main advantage of dry process production is low heat consumption (such as the heat consumption of dry kiln clinker with preheater is 3140 ～ 3768 joules / kg), the disadvantage is that the raw meal composition is not easy to be uniform, the workshop is dusty and the power consumption is high . Wet production has the advantages of simple operation, easy control of raw meal ingredients, good product quality, convenient slurry transportation, and less dust in the workshop. The disadvantage is high heat consumption (heat consumption of clinker is usually 5234 ~ 6490 joules / kg). Editor's summary: With the vigorous development of our scientific and technological cause, various special cement production processes are emerging endlessly, and many new environmentally friendly cements have also been produced, which has played a very important role in our construction cause, more energy-saving and increased efficiency. At the same time, I believe that the cement industry will create a new world in the future. What, the decoration still uses his own money? ! The Qi family is decorated in installments, with an ultra-low annual interest rate of 3.55% and a maximum loan of 1 million. Apply now to enjoy the discount If you are interested in brand cooperation, content cooperation, and advertising of this website, please send an email to :. Conch cement cement cement cabinet price cement cabinet door decoration design cement staircase Lip Balm,Fresh Lip Balm,Glossier Lip Balm,Natural Lip Balm Guangzhou Boxuanya Cosmetics Co., Ltd. , https://www.bxycosmetic.com
