手机：152 0851 5432
微信：152 0851 5432
The common cement is Portland cement, ordinary portland cement (ordinary cement), slag Portland cement (slag cement), volcanic ash Portland cement (abbreviated as ash cement) and fly ash Portland cement (fly ash cement for short). In addition, there are special functions of cement, such as high strength, fast hard, acid resistant, heat-resistant, resistant to expansion and other different properties of cement and decorative white cement (Guiyang white cement).
水泥强度等级:水泥强度等级按规定龄期的抗压强度和抗折强度来划分，以28夭龄期抗压强度为主要依据。根据水泥强度等级，将水泥分为32.5,32. 5R, 42. 5,42. 5R,52.5, 52.5R, 62.5. 62.5R等几种。
Cement strength grade: the strength grade of cement is divided according to the compressive strength and flexural strength of the specified age, and the compressive strength of the 28 age is the main basis. According to cement strength grade, cement is divided into 32.5,32. 5R, 42. 5,42. 5R, 52.5, 52.5R, 62.5. 62.5R and so on.
The characteristics of cement:
Cement has the characteristics of hardening with water. It can harden in the air. It can also harden in water, and the well continues to increase strength. Therefore, the cement is a hard cementing material. After the initial solidification and final solidification, the cement will produce obvious strength and gradually develop into a hard artificial stone. This process is called hardening of the cement.
Preservation of cement: Cement belongs to water and hard material. It must be properly kept and not wet. The storage time should not be more than 3 months. For more than 3 months, cement (fast hard Portland cement for 1 months) must be re sampled for inspection before being identified.