Cement Buying Tips
Cement is a hydraulic binder. In general, cement is used for floor tiles, wall tiles and masonry in home renovations. Because cement can not only enhance the adsorption capacity of the surface material and the base layer, but also can protect the internal structure, and can also be used as a leveling layer for building a rough surface, cement is an indispensable material in the decoration process. The type of cement is classified into Portland cement, ordinary portland cement, and slag portland cement according to its mineral composition. According to its use and performance, it is divided into three categories: general cement, special cement and characteristic cement.
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★Portland cement
Mainly based on calcium silicate as the main component of the Portland cement clinker, add the appropriate amount of gypsum ground. Its advantages are: high early strength, relatively concentrated heat of hydration, and it is conducive to the construction of northern winter construction and prefabricated components.
Ordinary Portland Cement
This is made of Portland cement clinker, added with appropriate amounts of gypsum and a mixture of materials ground. And this ordinary Portland cement has a good setting and hardening speed, and has the advantages of beautiful color, low heat of hydration, high early strength, good protective performance, strong anti-freezing ability, and small heat change coefficient, and is more suitable for the requirements of decoration characteristics. Quality is stable and reliable.
★ Slag Portland Cement
It is made of Portland cement clinker, mixed with appropriate granulated blast furnace slag and gypsum.
★ Weight
Cement can be packed or bulked. However, bagged cement has a net weight of 50kg per bag and must not be less than 98% of the mark weight. 20 bags can be randomly selected as long as the total cement weight is not less than 1000 kg, which is a qualified weight. For bag weight requirements, these principles must be met.
★ Sorting equipment
Cement must not be exposed to moisture and mixed with debris during transportation and storage, and cements belonging to different varieties and strength levels should be separately stored and transported. They should not be confused and packed together.
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