Year1
- 品名：
- 快干水泥
- 规格：
- 25kg/袋
- 品牌：
- 恒众鑫
Shenyang fast-hardening micro-expansion cement manufacturer
Expansion cement instructions
Expansion cement refers to cement that produces volume expansion during the hydration and hardening process. Generally, when Portland cement hardens in the air, Volume will shrink. Shrinkage will cause micro-cracks in the cement stone structure, reduce the compactness of the cement stone structure, and affect the structure's impermeability, frost resistance, and corrosion resistance. Expansive cement will not shrink in volume during the hardening process, but will expand slightly, which can solve the adverse consequences caused by shrinkage. Expansive cement has a wide range of uses
Cement that produces volume expansion during the hydration and hardening process is an expansion cement. Generally, when Portland cement hardens in air-expanding cement
, its volume will shrink. Shrinkage will cause micro-cracks in the cement stone structure, reduce the compactness of the cement stone structure, and affect the structure's impermeability, frost resistance, and corrosion resistance. Expansive cement will not shrink in volume during the hardening process, but will expand slightly, which can solve the adverse consequences caused by shrinkage.
.The free expansion rate of concrete prepared from expanding cement in water is ~-, which can establish self-stress in the concrete to meet the shrinkage compensation requirements and reduce or prevent shrinkage and cracking of concrete. Expanding cement concrete is impermeable If the number is greater than 3, it is also called self-waterproof concrete. Using this cement to prepare self-waterproof concrete saves labor and materials, shortens the construction period, and has good durability 3. The new type of expanded cement has high strength in the early stage, a large increase in strength in the later period, and a steady increase in long-term strength. The concrete prepared with expanded cement has expansion self-stress built inside, which creates a stronger holding force with steel bars. Contains no chlorine salt and has no rust on steel bars.
. Portland expansion cement is mainly used to make waterproof mortar and waterproof concrete. Suitable for reinforcing structures, pouring machine bases or fixing anchor bolts, and can be used for joints and repair projects. However, it is prohibited to use it in water projects with salt erosion. .Low heat micro-expansion cement is mainly used for concrete and large-volume concrete with low hydration heat and required to compensate for shrinkage. It is also suitable for projects requiring impermeability and salt erosion resistance. Sulfoaluminate expansion cement expansion cement
Main Used for pouring component joints and in concrete projects to resist seepage and compensate for shrinkage. .Self-stressing cement is mainly used for self-stressing reinforced concrete pressure pipes and their accessories. The present invention relates to the firing of Portland cement clinker, and specifically refers to a method for firing Portland cement clinker using wet waste residue from smelting lead and zinc. The formula of this method is as follows: limestone ~ (weight), lead and zinc dry waste residue 3 ~ (weight), clay 3 ~ (weight), iron powder ~ (weight). This method makes full use of the wet waste residue from lead and zinc smelting in Guangdong to replace some of the clay and most of the iron powder and other useful resources to produce high-quality Portland cement clinker, which not only turns waste into treasure, but also protects the environment. It is not only in line with the strategic decision of sustainable development of the ecological cement industry, but also an effective way to recycle waste.
If you have any questions during use, please contact the manufacturer
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