Cement 325 and 425 are two different strength grades of cement, and the main differences between them are strength, setting time, application area and **.
Strength: Cement 325 indicates that the compressive strength of the cement is 325MPa, while cement 425 indicates that the compressive strength of this cement is 425mpa。In general, the strength of cement 425 is higher than that of cement 325.
Setting time: The initial setting time and final setting time of cement 325 and 425 are slightly different. The initial setting time of cement 325 is usually about 3 hours, and the final setting time is usually about 6 hoursThe initial setting time of cement 425 is usually about 4 hours, and the final setting time is usually about 8 hours.
Applications: Cement 325 is often used in general construction projects, plastering, masonry, floor slabs, etc.;Cement 425 is often used in bridges, tunnels, high-rise buildings and other projects with high strength requirements.
*: Due to the high strength of cement 425 and the relatively high production cost, the ** of cement 425 is usually more expensive than cement 325.
In short, cement 325 and 425 have certain differences in strength, setting time, application field and **. When choosing cement, a reasonable choice should be made according to the actual project needs and budget.