According to the use of cement performance is divided into several categories


Release time:

2015-08-07

Author:

New Earth Group

Source:

According to the use of cement performance is divided into several categories

According to the use and performance of cement is divided:
1, general cement, general civil construction engineering usually used cement. General cement mainly refers to: GB175-1999, GB1344-1999 and GB12958-1999 of the six categories of cement, namely Portland cement, ordinary Portland cement, slag Portland cement, pozzolanic Portland cement, pulverized coalGrey Portland cement and composite Portland cement.
2, special cement, special purpose cement. Such as: G-class oil well cement, road Portland cement.
3, the characteristics of cement, some performance is more prominent cement. Such as: fast hardening Portland cement, low heat slag Portland cement, expanded sulphoaluminate cement.
Cement is divided:
1, Portland cement, which is known abroad as Portland cement; aluminate cement;
2. Sulphoaluminate cement;
3, iron aluminate cement;
4. Fluoroaluminate cement;
5. Cement with pozzolan or potential hydraulic materials and other active materials as the main components.
According to the main technical characteristics indicated in cement naming, cement is divided:
1, fast hard: divided into fast hard and fast hard two categories;
2. Hydration heat: divided into medium and low heat;
3. Sulfate resistance: divided into two categories: medium sulfate corrosion resistance and high sulfate corrosion resistance;
4, expansion: divided into expansion and self-stress two categories;
4. High temperature resistance: The high temperature resistance of aluminate cement is graded by the content of alumina in cement.
The naming of cement shall be based on the main hydraulic minerals, mixed materials, uses and main characteristics of cement according to different categories, and shall be concise and accurate. If the name is too long, abbreviations are allowed. General purpose cement is named after the main hydraulic mineral name of the cement with the name of the mixed material or other appropriate name. DedicatedCement is named for its special purpose and can be named in different models. Characteristic cement is named after the main hydraulic mineral name of cement, and can be named after different types or mixed materials. Cement with pozzolanic or potentially hydraulic materials and other active materials as the main component is based on the main.The name of the component is named after the name of the active material, and it can also be named after the characteristic name, such as gypsum slag cement, lime pozzolan cement, etc.
 
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